A generic expression for any tachycardia that originates above the BUNDLE OF HIS.
Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.
Abnormally rapid heartbeats with sudden onset and cessation.
An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation).
Abnormally rapid heartbeats caused by reentry of atrial impulse into the dual (fast and slow) pathways of ATRIOVENTRICULAR NODE. The common type involves a blocked atrial impulse in the slow pathway which reenters the fast pathway in a retrograde direction and simultaneously conducts to the atria and the ventricles leading to rapid HEART RATE of 150-250 beats per minute.
Simple rapid heartbeats caused by rapid discharge of impulses from the SINOATRIAL NODE, usually between 100 and 180 beats/min in adults. It is characterized by a gradual onset and termination. Sinus tachycardia is common in infants, young children, and adults during strenuous physical activities.
Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.
Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
A rare form of supraventricular tachycardia caused by automatic, not reentrant, conduction initiated from sites at the atrioventricular junction, but not the ATRIOVENTRICULAR NODE. It usually occurs during myocardial infarction, after heart surgery, or in digitalis intoxication with a HEART RATE ranging from 140 to 250 beats per minute.
Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.
A small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus. It gives rise to the atrioventricular bundle of the conduction system of the heart.
A form of ventricular pre-excitation characterized by a short PR interval and a long QRS interval with a delta wave. In this syndrome, atrial impulses are abnormally conducted to the HEART VENTRICLES via an ACCESSORY CONDUCTING PATHWAY that is located between the wall of the right or left atria and the ventricles, also known as a BUNDLE OF KENT. The inherited form can be caused by mutation of PRKAG2 gene encoding a gamma-2 regulatory subunit of AMP-activated protein kinase.
Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.
An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.
A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.
Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.
Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.
Small band of specialized CARDIAC MUSCLE fibers that originates in the ATRIOVENTRICULAR NODE and extends into the membranous part of the interventricular septum. The bundle of His, consisting of the left and the right bundle branches, conducts the electrical impulses to the HEART VENTRICLES in generation of MYOCARDIAL CONTRACTION.
Abnormal accumulation of serous fluid in two or more fetal compartments, such as SKIN; PLEURA; PERICARDIUM; PLACENTA; PERITONEUM; AMNIOTIC FLUID. General fetal EDEMA may be of non-immunologic origin, or of immunologic origin as in the case of ERYTHROBLASTOSIS FETALIS.
A potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial ARRHYTHMIAS and TACHYCARDIAS.
Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).
Abnormally rapid heartbeats caused by reentry circuit in or around the SINOATRIAL NODE. It is characterized by sudden onset and offset episodes of tachycardia with a HEART RATE of 100-150 beats per minute. The P wave is identical to the sinus P wave but with a longer PR interval.
Method in which prolonged electrocardiographic recordings are made on a portable tape recorder (Holter-type system) or solid-state device ("real-time" system), while the patient undergoes normal daily activities. It is useful in the diagnosis and management of intermittent cardiac arrhythmias and transient myocardial ischemia.
An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance.
A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)
A syndrome of ORTHOSTATIC INTOLERANCE combined with excessive upright TACHYCARDIA, and usually without associated ORTHOSTATIC HYPOTENSION. All variants have in common an excessively reduced venous return to the heart (central HYPOVOLEMIA) while upright.
A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.
A group of conditions in which HEART VENTRICLE activation by the atrial impulse is faster than the normal impulse conduction from the SINOATRIAL NODE. In these pre-excitation syndromes, atrial impulses often bypass the ATRIOVENTRICULAR NODE delay and travel via ACCESSORY CONDUCTING PATHWAYS connecting the atrium directly to the BUNDLE OF HIS.
Extra impulse-conducting tissue in the heart that creates abnormal impulse-conducting connections between HEART ATRIA and HEART VENTRICLES.
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
Agents affecting the function of, or mimicking the actions of, the autonomic nervous system and thereby having an effect on such processes as respiration, circulation, digestion, body temperature regulation, certain endocrine gland secretions, etc.
Pathophysiological conditions of the FETUS in the UTERUS. Some fetal diseases may be treated with FETAL THERAPIES.
Recording of regional electrophysiological information by analysis of surface potentials to give a complete picture of the effects of the currents from the heart on the body surface. It has been applied to the diagnosis of old inferior myocardial infarction, localization of the bypass pathway in Wolff-Parkinson-White syndrome, recognition of ventricular hypertrophy, estimation of the size of a myocardial infarct, and the effects of different interventions designed to reduce infarct size. The limiting factor at present is the complexity of the recording and analysis, which requires 100 or more electrodes, sophisticated instrumentation, and dedicated personnel. (Braunwald, Heart Disease, 4th ed)
The chambers of the heart, to which the BLOOD returns from the circulation.
Implantable devices which continuously monitor the electrical activity of the heart and automatically detect and terminate ventricular tachycardia (TACHYCARDIA, VENTRICULAR) and VENTRICULAR FIBRILLATION. They consist of an impulse generator, batteries, and electrodes.
A chain of islands, cays, and reefs in the West Indies, lying southeast of Florida and north of Cuba. It is an independent state, called also the Commonwealth of the Bahamas or the Bahama Islands. The name likely represents the local name Guanahani, itself of uncertain origin. (From Webster's New Geographical Dictionary, 1988, p106 & Room, Brewer's Dictionary of Names, 1992, p45)
A type of cardiac arrhythmia with premature contractions of the HEART VENTRICLES. It is characterized by the premature QRS complex on ECG that is of abnormal shape and great duration (generally >129 msec). It is the most common form of all cardiac arrhythmias. Premature ventricular complexes have no clinical significance except in concurrence with heart diseases.
An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)
An adrenergic beta-antagonist that is used in the treatment of life-threatening arrhythmias.
Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.
Procedures using an electrically heated wire or scalpel to treat hemorrhage (e.g., bleeding ulcers) and to ablate tumors, mucosal lesions, and refractory arrhythmias. It is different from ELECTROSURGERY which is used more for cutting tissue than destroying and in which the patient is part of the electric circuit.
A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
Impaired impulse conduction from HEART ATRIA to HEART VENTRICLES. AV block can mean delayed or completely blocked impulse conduction.
A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)
An antiarrhythmia agent that is particularly effective in ventricular arrhythmias. It also has weak beta-blocking activity.
A calcium channel blocker that is a class IV anti-arrhythmia agent.
The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.
The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute.
The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
A form of heart block in which the electrical stimulation of HEART VENTRICLES is interrupted at either one of the branches of BUNDLE OF HIS thus preventing the simultaneous depolarization of the two ventricles.
The return of a sign, symptom, or disease after a remission.
Cardiac arrhythmias that are characterized by excessively slow HEART RATE, usually below 50 beats per minute in human adults. They can be classified broadly into SINOATRIAL NODE dysfunction and ATRIOVENTRICULAR BLOCK.
A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).
An antagonist of histamine H1 receptors.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)
Elements of limited time intervals, contributing to particular results or situations.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.
A class I anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. It also possesses some anticholinergic and local anesthetic properties.
A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.
Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
An examination, review and verification of all financial accounts.
Drugs that bind to but do not activate beta-adrenergic receptors thereby blocking the actions of beta-adrenergic agonists. Adrenergic beta-antagonists are used for treatment of hypertension, cardiac arrhythmias, angina pectoris, glaucoma, migraine headaches, and anxiety.
A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A nucleoside that is composed of ADENINE and D-RIBOSE. Adenosine or adenosine derivatives play many important biological roles in addition to being components of DNA and RNA. Adenosine itself is a neurotransmitter.
A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.
The use of freezing as a special surgical technique to destroy or excise tissue.
The hollow, muscular organ that maintains the circulation of the blood.
Absence of the orifice between the RIGHT ATRIUM and RIGHT VENTRICLE, with the presence of an atrial defect through which all the systemic venous return reaches the left heart. As a result, there is left ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR) because the right ventricle is absent or not functional.
An infant during the first month after birth.
Surgery performed on the heart.
The hemodynamic and electrophysiological action of the HEART ATRIA.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
The innermost layer of the heart, comprised of endothelial cells.
A nonreassuring fetal status (NRFS) indicating that the FETUS is compromised (American College of Obstetricians and Gynecologists 1988). It can be identified by sub-optimal values in FETAL HEART RATE; oxygenation of FETAL BLOOD; and other parameters.
Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.
Abnormal thoracoabdominal VISCERA arrangement (visceral heterotaxy) or malformation that involves additional CONGENITAL HEART DEFECTS (e.g., heart isomerism; DEXTROCARDIA) and/or abnormal SPLEEN (e.g., asplenia and polysplenia). Irregularities with the central nervous system, the skeleton and urinary tract are often associated with the syndrome.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
A plant genus of the LAMIACEAE family.
The period of time following the triggering of an ACTION POTENTIAL when the CELL MEMBRANE has changed to an unexcitable state and is gradually restored to the resting (excitable) state. During the absolute refractory period no other stimulus can trigger a response. This is followed by the relative refractory period during which the cell gradually becomes more excitable and the stronger impulse that is required to illicit a response gradually lessens to that required during the resting state.
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
Irregular HEART RATE caused by abnormal function of the SINOATRIAL NODE. It is characterized by a greater than 10% change between the maximum and the minimum sinus cycle length or 120 milliseconds.
A congenital heart defect characterized by downward or apical displacement of the TRICUSPID VALVE, usually with the septal and posterior leaflets being attached to the wall of the RIGHT VENTRICLE. It is characterized by a huge RIGHT ATRIUM and a small and less effective right ventricle.
A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.
Production of an image when x-rays strike a fluorescent screen.
AMINO ALCOHOLS containing the propanolamine (NH2CH2CHOHCH2) group and its derivatives.
Failure of equipment to perform to standard. The failure may be due to defects or improper use.
Injections made into a vein for therapeutic or experimental purposes.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
Recording the locations and measurements of electrical activity in the EPICARDIUM by placing electrodes on the surface of the heart to analyze the patterns of activation and to locate arrhythmogenic sites.
The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.
Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
The visualization of tissues during pregnancy through recording of the echoes of ultrasonic waves directed into the body. The procedure may be applied with reference to the mother or the fetus and with reference to organs or the detection of maternal or fetal disease.
A congenital abnormality in which organs in the THORAX and the ABDOMEN are opposite to their normal positions (situs solitus) due to lateral transposition. Normally the STOMACH and SPLEEN are on the left, LIVER on the right, the three-lobed right lung is on the right, and the two-lobed left lung on the left. Situs inversus has a familial pattern and has been associated with a number of genes related to microtubule-associated proteins.
A congenital cardiovascular malformation in which the AORTA arises entirely from the RIGHT VENTRICLE, and the PULMONARY ARTERY arises from the LEFT VENTRICLE. Consequently, the pulmonary and the systemic circulations are parallel and not sequential, so that the venous return from the peripheral circulation is re-circulated by the right ventricle via aorta to the systemic circulation without being oxygenated in the lungs. This is a potentially lethal form of heart disease in newborns and infants.
Isopropyl analog of EPINEPHRINE; beta-sympathomimetic that acts on the heart, bronchi, skeletal muscle, alimentary tract, etc. It is used mainly as bronchodilator and heart stimulant.
A benzothiazepine derivative with vasodilating action due to its antagonism of the actions of CALCIUM ion on membrane functions.
The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.
Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.
NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).
Rare congenital cardiomyopathies characterized by the lack of left ventricular myocardium compaction. The noncompaction results in numerous prominent trabeculations and a loose myocardial meshwork (spongy myocardium) in the LEFT VENTRICLE. Heterogeneous clinical features include diminished systolic function sometimes associated with left ventricular dilation, that presents either neonatally or progressively. Often, the RIGHT VENTRICLE is also affected. CONGESTIVE HEART FAILURE; PULMONARY EMBOLISM; and ventricular ARRHYTHMIA are commonly seen.
A procedure in which total right atrial or total caval blood flow is channeled directly into the pulmonary artery or into a small right ventricle that serves only as a conduit. The principal congenital malformations for which this operation is useful are TRICUSPID ATRESIA and single ventricle with pulmonary stenosis.
The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.
A vein which arises from the right ascending lumbar vein or the vena cava, enters the thorax through the aortic orifice in the diaphragm, and terminates in the superior vena cava.
A congenital cardiomyopathy that is characterized by infiltration of adipose and fibrous tissue into the RIGHT VENTRICLE wall and loss of myocardial cells. Primary injuries usually are at the free wall of right ventricular and right atria resulting in ventricular and supraventricular arrhythmias.
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
The long-term (minutes to hours) administration of a fluid into the vein through venipuncture, either by letting the fluid flow by gravity or by pumping it.
The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.
Compounds based on reduced IMIDAZOLINES which contain no double bonds in the ring.

Frequency and long term follow up of valvar insufficiency caused by retrograde aortic radiofrequency catheter ablation procedures. (1/442)

OBJECTIVE: To assess the frequency of valvar complications caused by left sided radiofrequency catheter ablation using the retrograde aortic technique. METHODS: 179 patients (118 male) with a mean (SD) age of 43 (17) years underwent 216 procedures at one centre. The target of the ablation was an accessory atrioventricular pathway in 144 patients, the atrioventricular junction in 29 patients, and a ventricular tachycardia in six patients. In 25 patients structural heart disease was identified before the procedure (ischaemic heart disease 10, cardiomyopathy nine, valvar three, other three). Echo/Doppler examinations were performed the day before the procedure and within 24 hours postablation; the investigations were all reviewed by the same investigator. Patients with identified valvar injury caused by the procedure were followed for 42 (7) months. RESULTS: Valvar injury caused by the ablation procedure was identified in four young (age 30 (8) years), otherwise healthy patients with left lateral atrioventricular accessory pathways. Mild mitral insufficiency with a central regurgitation jet was detected in two patients and remained unchanged at follow up. Mild aortic insufficiency was detected in another two patients. In one of these the regurgitation jet was central and remained unchanged at follow up. In one patient the regurgitation jet was located between the non-coronary and left cusps in relation to a loosely attached structure. Both the structure and the valvar regurgitation disappeared during follow up. No clinical complications occurred in any of the patients during follow up. CONCLUSION: In this study, the frequency of valvar complications after left sided radiofrequency catheter ablation using the retrograde aortic technique was 1.9%.  (+info)

Tachyarrhythmias triggered by swallowing and belching. (2/442)

Three cases with supraventricular tachyarrhythmias related to oesophageal transit are reported. A 61 year old man had episodes of atrial tachycardia on each swallow of food but not liquid; this has been reported only rarely. A 55 year old man had atrial fibrillation initiated by drinking ice cold beverages; this has not been described previously although atrial tachycardia triggered by drinking ice cold beverages has been described once. A 68 year old man had supraventricular tachycardia initiated by belching; this has not been described previously. These cases illustrate the diversity of atrial tachyarrhythmias that can be precipitated by oesophageal stimulation and suggest that what is regarded as a very rare phenomenon may be found more commonly when sought.  (+info)

Electrophysiologic effects of adenosine in patients with supraventricular tachycardia. (3/442)

BACKGROUND: We correlated the electrophysiologic (EP) effects of adenosine with tachycardia mechanisms in patients with supraventricular tachycardias (SVT). METHODS AND RESULTS: Adenosine was administered to 229 patients with SVTs during EP study: atrioventricular (AV) reentry (AVRT; n=59), typical atrioventricular node reentry (AVNRT; n=82), atypical AVNRT (n=13), permanent junctional reciprocating tachycardia (PJRT; n=12), atrial tachycardia (AT; n=53), and inappropriate sinus tachycardia (IST; n=10). There was no difference in incidence of tachycardia termination at the AV node in AVRT (85%) versus AVNRT (86%) after adenosine, but patients with AVRT showed increases in the ventriculoatrial (VA) intervals (13%) compared with typical AVNRT (0%), P<0.005. Changes in atrial, AV, or VA intervals after adenosine did not predict the mode of termination of long R-P tachycardias. For patients with AT, there was no correlation with location of the atrial focus and adenosine response. AV block after adenosine was only observed in AT patients (27%) or IST (30%). Patients with IST showed atrial cycle length increases after adenosine (P<0.05) with little change in activation sequence. The incidence of atrial fibrillation after adenosine was higher for those with AVRT (15%) compared with typical AVNRT (0%) P<0.001, or atypical AVNRT (0%) but similar to those with AT (11%) and PJRT (17%). CONCLUSIONS: The EP response to adenosine proved of limited value to identify the location of AT or SVT mechanisms. Features favoring AT were the presence of AV block or marked shortening of atrial cycle length before tachycardia suppression. Atrial fibrillation was more common after adenosine in patients with AVRT, PJRT, or AT. Patients with IST showed increases in cycle length with little change in atrial activation sequence after adenosine.  (+info)

Ventriculo-atrial time interval measured on M mode echocardiography: a determining element in diagnosis, treatment, and prognosis of fetal supraventricular tachycardia. (4/442)

OBJECTIVE: To determine whether M mode echocardiography can differentiate fetal supraventricular tachycardia according to the ventriculo-atrial (VA) time interval, and if the resulting division into short and long VA intervals holds any relation with clinical presentation, management, and fetal outcome. DESIGN: Retrospective case series. SUBJECTS: 23 fetuses with supraventricular tachycardia. MAIN OUTCOME MEASURES: A systematic review of the M mode echocardiograms (for VA and atrioventricular (AV) interval measurements), clinical profile, and final outcome. RESULTS: 19 fetuses (82.6%) had supraventricular tachycardia of the short VA type (mean (SD) VA/AV ratio 0.34 (0.16); heart rate 231 (29) beats/min). Tachycardia was sustained in six and intermittent in 13. Hydrops was present in three (15.7%). Digoxin, the first drug given in 14, failed to control tachycardia in five. Three of these then received sotalol and converted to sinus rhythm. All fetuses of this group survived. Postnatally, supraventricular tachycardia recurred in three, two having Wolff-Parkinson-White syndrome. Four fetuses (17.4%) had long VA tachycardia (VA/AV ratio 3.89 (0.82); heart rate 226 (10) beats/min). Initial treatment with digoxin was ineffective in all, but sotalol was effective in two. Heart failure caused fetal death in one and premature delivery in one. All three surviving fetuses had recurrences of supraventricular tachycardia after birth: two had the permanent form of junctional reciprocating tachycardia and one had atrial ectopic tachycardia. CONCLUSIONS: Careful measurement of ventriculo-atrial intervals on fetal M mode echocardiography can be used to distinguish short from long VA supraventricular tachycardia and may be helpful in optimising management. Digoxin, when indicated, may remain the drug of choice in the short VA type but appears ineffective in the long VA type.  (+info)

Recovery pattern of left ventricular dysfunction following radiofrequency ablation of incessant supraventricular tachycardia in infants and children. (5/442)

OBJECTIVE: To assess recovery pattern of left ventricular function secondary to incessant tachycardia after radiofrequency ablation in a group of infants and children. DESIGN AND SETTING: A combined prospective and retrospective echocardiographic study carried out in a tertiary paediatric cardiac centre. PATIENTS: Echocardiographic evaluation of left ventricular size and function in nine children with incessant tachycardia, before and after successful radiofrequency ablation. Age at ablation ranged from 2 months to 12.5 years (mean 4.1 years). Recovery of left ventricular function was analysed in relation to age at ablation (group I < 18 months, group II > 18 months). MAIN OUTCOME MEASURE: Ventricular recovery pattern. RESULTS: Seven of the nine children had left ventricular dysfunction; six of these also had left ventricular dilatation. All children with left ventricular dysfunction had normalisation of ejection fraction and fractional shortening; left ventricular dilatation also improved, but the improvement occurred after recovery of function. There was a shorter recovery time for left ventricular function in younger (group I) than in older children (group II) (mean (SD) 5.7 (7.2) months v 31.3 (5.2) (p < 0.002). CONCLUSIONS: Tachycardia induced cardiomyopathy is reversible following curative treatment with radiofrequency. Recovery of left ventricular systolic function precedes recovery of left ventricular dilatation. Time course to recovery is shorter in younger children.  (+info)

Conduction disturbances and increased atrial vulnerability in Connexin40-deficient mice analyzed by transesophageal stimulation. (6/442)

BACKGROUND: Recently, it has been reported that connexin40 (Cx40) deficiency in targeted mouse mutants is associated with a prolongation of P-wave and QRS complex duration on surface electrograms. The specific effects of Cx40 deficiency on sinus node function, sinoatrial, and atrioventricular conduction properties as well as on atrial vulnerability have not yet been investigated systematically by electrophysiological analysis. METHODS AND RESULTS: Fifty-two mice (18 Cx40(+/+), 15 Cx40(+/-), and 19 Cx40(-/-) mice) were subjected to rapid atrial transesophageal stimulation after anesthesia with avertin. A significant prolongation of sinus node recovery time was noticed in Cx40(-/-) mice compared with Cx40(+/-) and Cx40(+/+) mice (287.8+/-109.0 vs 211.1+/-61.8 vs 204.4+/-60.9 ms; P<0.05). In addition, Wenckebach periodicity occurred at significantly longer atrial pacing cycle lengths in Cx40(-/-) mice than in Cx40(+/-) or Cx40(+/+) mice (93. 3+/-11.8 vs 83.9+/-9.7 vs 82.8+/-8.0 ms, P<0.05). Analysis of 27 Cx40(-/-) mice showed a significant increase in intra-atrial conduction time and atrioventricular conduction time compared with 52 Cx40(+/-) and 31 wild-type (Cx40(+/+)) mice. Furthermore, in Cx40(-/-) mice, atrial tachyarrhythmias could be induced frequently by atrial burst pacing, whereas no atrial arrhythmias were inducible in heterozygous or wild-type mice. CONCLUSIONS: This study demonstrates that Cx40 deficiency is associated with sinoatrial, intra-atrial, and atrioventricular conduction disturbances. In atrial myocardium of the mouse, Cx40 deficiency results in increased atrial vulnerability and might contribute to arrhythmogenesis.  (+info)

Neurological morbidity after fetal supraventricular tachyarrhythmia. (7/442)

BACKGROUND: Fetal tachyarrhythmia is a well-documented entity which, in the absence of pharmacological intervention, may lead to congestive heart failure, fetal hydrops and eventually fetal demise. The success rate of the implemented treatment is generally measured by survival and achievement of control of the arrhythmia. We report on the occurrence of associated cerebral damage in three patients with fetal tachycardia. METHODS: We describe three patients with a history of fetal supraventricular tachyarrhythmia who developed cerebral complications in utero. RESULTS: Two patients had cerebral hypoxic-ischemic lesions and one had hemorrhagic lesions present at birth. They had developed severe congestive heart failure and fetal hydrops secondary to fetal tachyarrhythmia, and there were no other obvious causes for the cerebral pathology. Two of these patients were referred to us antenatally. Therapy was instituted and resulted in control of the tachycardia and resolution of hydrops. The third patient was referred to our clinic shortly after birth because of severe circulatory problems secondary to fetal tachyarrhythmia. CONCLUSION: From these observations, we believe that a fetus with tachyarrhythmia and subsequent hydrops is at increased risk for the development of cerebral complications, due to the circulatory disturbances and sudden changes in heart rate which may lead to fluctuations in cerebral perfusion. This would imply that it is of the utmost importance to aim at immediate and complete control of the heart rate in the treatment of fetal tachyarrhythmia.  (+info)

Clinical experience with a novel multielectrode basket catheter in right atrial tachycardias. (8/442)

BACKGROUND: The complexity of atrial tachycardias (ATs) makes the electroanatomic characterization of the arrhythmogenic substrate difficult with conventional mapping techniques. The aim of our study was to evaluate possible advantages of a novel multielectrode basket catheter (MBC) in patients with AT. METHODS AND RESULTS: In 31 patients with AT, an MBC composed of 64 electrodes was deployed in the right atrium (RA). The possibility of deployment, spatial relations between MBC and RA, MBC recording and pacing capabilities, mapping performance, and MBC-guided ablation were assessed. MBC deployment was possible in all 31 patients. The MBC was left in the RA for 175+/-44 minutes. Stable bipolar electrograms were recorded in 88+/-4% of electrodes. Pacing from bipoles was possible in 64+/-5% of electrode pairs. The earliest activity intervals, in relation to P-wave onset, measured from the MBC and standard roving catheters were 41+/-9 and 46+/-6 ms, respectively (P=0.21). Radiofrequency ablation was successful in 15 (94%) of 16 patients in whom it was attempted, including 2 patients with polymorphic right atrial tachycardia (RAT), 2 with RAT-atrial flutter combination, 1 with macroreentrant AT, and 1 with focal origin of atrial fibrillation. CONCLUSIONS: These data demonstrate that MBC can be used safely in patients with right atrial arrhythmias. The simultaneous multielectrode mapping aids in the rapid identification of sites of origin of the AT and facilitates radiofrequency ablation procedures. The technique is especially effective for complex atrial arrhythmias.  (+info)

TY - JOUR. T1 - The R-on-T phenomenon during supraventricular tachycardia in childhood. AU - Sung, Ruey J.. AU - Gelband, Henry. AU - Myerburg, Robert J.. AU - Castellanos, Agustin. AU - Tamer, Dolores M.. PY - 1976. Y1 - 1976. N2 - The electrocardiographic R on T phenomenon was observed in the absence of Wolff Parkinson White syndrome during recurrent episodes of supraventricular tachycardia (SVT) with rates between 240 to 275 per minute in a 5 year old boy. The rapid ventricular response during SVT corroborates the recent finding of a short refractory period of the A V node in children. The demonstration of the R on T phenomenon in this child may be important in attempting to understand the pathogenesis of sudden death in children.. AB - The electrocardiographic R on T phenomenon was observed in the absence of Wolff Parkinson White syndrome during recurrent episodes of supraventricular tachycardia (SVT) with rates between 240 to 275 per minute in a 5 year old boy. The rapid ventricular ...
TY - JOUR. T1 - Childhood stroke and supraventricular tachycardia. AU - Atluru, Vijaya L.. AU - Epstein, Leon G.. AU - Gootman, Norman. PY - 1985/1/1. Y1 - 1985/1/1. N2 - Acquired hemiplegia in childhood is uncommon. All causes of stroke in adults should be considered in children, including atherosclerotic cerebrovascular disease even though it is rare. In addition, children suffer from many conditions that may result in stroke. Unlike adults, a cardiac illness resulting in stroke is extremely unusual in an otherwise healthy child. We report a case of a four-year-old child; he presented with the sudden onset of a right hemiplegia associated with supraventricular tachycardia. Cerebral angiography indicated a left internal carotid artery occlusion. To our knowledge this is the first reported case of childhood stroke with supraventricular tachycardia (SVT).. AB - Acquired hemiplegia in childhood is uncommon. All causes of stroke in adults should be considered in children, including atherosclerotic ...
Causes of Supraventricular Tachycardia including triggers, hidden medical causes of Supraventricular Tachycardia, risk factors, and what causes Supraventricular Tachycardia.
Aim: The relationship between arrhythmia induction and ablation with palpitation characteristics has been demonstrated in electrophysiological study (EPS) patients. However, there is insufficient data on palpitation characteristics and their sensitivity and specificity. We aimed to identify the relationship between scoring composed of palpitation characteristics with the supraventricular tachycardia (SVT) induction and the success rate of the procedure. Method: A total of 119 patients, diagnosed as paroxysmal supraventricular tachycardia (PSVT) by electrocardiography, rhythm Holter or symptoms, and underwent EPS, were enrolled in the study. A psychiatrist administered the Hospital Anxiety and Depression Score (HADS) questionnaire. Results: In SVT induced group, palpitation duration (p ¼ 0.048), palpitation spread to neck (p ¼ 0.004), responsiveness to medication (p ¼ 0.008), induction with stress (p ¼ 0.007), admission to emergency (p ¼ 0.021) and documented PSVT (p ¼ 0.017) were more common.
Objectives. The purpose of this study was to examine the effects of supraventricular pacing tachycardia on left ventricular function and myocardial structure in newborn, immature pigs and to determine whether immature pigs respond to suproventricular tachycardia differently from adults.. Background. Previous studies have shown that supraventricular tachycardia causes dilated cardiomyopathy in adult animals; however, in humans, supraventricular tachycardia-induced congestive heart failure occurs most frequently in children and newborns. Because some clinical diseases may cause myocardial failure in adults but rarely do so in children, it was hypothesized that the effects of supraventricular tachycardia in newborns may be different from those in adults.. Methods. In two groups of newborn swine (3 weeks of age), left ventricular volume, mass and function were assessed with simultaneous echocardiography and cardiac catheterization and myocardial structure was examined with light and electron ...
Supraventricular tachycardia (SVT) is generally used to refer to atrioventricular nodal re-entry tachycardia (AVNRT), atrioventricular re-entry tachycardia...
TY - JOUR. T1 - Optimal surface electrocardiogram lead for identification of the mechanism of supraventricular tachycardia in children. AU - Liberman, Leonardo. AU - Pass, Robert H.. AU - Starc, Thomas J.. PY - 2008/1/1. Y1 - 2008/1/1. N2 - OBJECTIVE: Although supraventricular tachycardia (SVT) can be identified from any lead of the bedside monitor, the mechanism of tachycardia is not always obvious. We analyzed the 12-lead electrocardiogram (ECG) in SVT of pediatric patients with different mechanisms of SVT to determine if there is a consistent optimal lead for rhythm identification. METHODS: Twelve-lead ECGs during SVT were available for retrospective analysis in 54 patients. The tachycardia mechanism was determined either by intracardiac or transesophageal recording, or after cardioversion analysis of atrial flutter or fibrillation. Blinded analysis of each separate lead of the 12-lead ECG was done to determine the best lead to diagnose the mechanism of tachycardia. For statistical analysis, ...
What is supraventricular tachycardia? Any tachycardia that has an origin above the ventricles is technically a supraventricular tachycardia.
Supraventricular tachycardia may be defined as an abnormally rapid heart rhythm originating above the ventricles, often, but not always, with a narrow QRS complex on the ECG. The differential diagnosis for such rhythms includes sinus tachycardia, AV nodal re-entrant tachycardia, AV re-entrant tachycardia, atrial tachycardia, sinoatrial nodal re-entrant tachycardia, multifocal atrial tachycardia, junctional tachycardia, atrial fibrillation, and atrial flutter. This tutorial will primarily focus on AV nodal re-entrant tachycardia (AVNRT), AV reentrant tachycardia (AVRT), and atrial tachycardia (AT).. Note: This course is eligible for ACPE credit.. ...
Supraventricular tachycardia is one type of fast heartbeat. Children with supraventricular tachycardia may have episodes that come and go suddenly.
Objectives: 1. Discuss signs and symptoms of Supraventricular Tachycardia2. Discuss medidcal management and surgical management of Supraventricular Tachycardia
Atrioventricular nodal re-entrant tachycardia (AVNRT) is the most common supraventricular tachycardia (SVT) detected during pregnancy and labour. Non pharmacological treatment including vagal manoeuvres such as Valsalva manoeuvre, carotid massage and facial ice immersion are well tolerated and aid in diagnosis. Adenosine and beta-blocking agents are the first line drugs of choice to terminate an episode of SVT. The treatment requires interdisciplinary cooperation. Ideally, management of supraventricular arrhythmias should start before conception, for example by radiofrequency ablation. A small dose of beta-blocking agents can be used during pregnancy.. ...
Moak, J.P., Mercader, M.A., He, D., Trachiotis, G., Langert, J., Blicharz, A., Montaque, E., Li, X., Cheng, Y.I., McCarter, R., Bornzin, G.A., Martin, G.R., Jonas, R.A. (2013). Nonpharmacologic control of postoperative supraventricular arrhythmias using AV nodal fat pad stimulation in a young animal open heart surgical model. Circulation - Arrythmia and Electrophysiology, 6(3), 641-647.. ...
Introduction. Neonatal tachycardia is defined as a resting heart rate (HR) of 182 beats per minute (bpm) when the baby is not crying.1,2 Supraventricular tachycardia (SVT) is the most common tachyarrhythmia in the neonatal period and usually presents with a HR of more than 200bpm and with a narrow QRS complex. In 80% of patients, it originates through a mechanism of retrograde conduction via an accessory pathway between the ventricle and the atrium, with an abrupt onset and termination. In 15% of patients it results from atrial ectopic beats, while 5% of cases correspond to re-entrant nodal tachycardias.3,4 Approximately half of these patients present with heart failure, with suspicion of sepsis in some cases. The tachycardia may be detected in the foetal period, most frequently between weeks 28 and 33 of gestation, possibly manifesting with hydrops.5. The key element in the management of haemodynamically unstable patients with tachycardia is electric cardioversion. However, in stable patients, ...
TY - JOUR. T1 - 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia. T2 - Executive summary A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. AU - Page, Richard L.. AU - Joglar, José A.. AU - Caldwell, Mary A.. AU - Calkins, Hugh. AU - Conti, Jamie B.. AU - Deal, Barbara J.. AU - Estes, N. A.Mark. AU - Field, Michael E.. AU - Goldberger, Zachary D.. AU - Hammill, Stephen C.. AU - Indik, Julia H.. AU - Lindsay, Bruce D.. AU - Olshansky, Brian. AU - Russo, Andrea M.. AU - Shen, Win Kuang. AU - Tracy, Cynthia M.. AU - Al-Khatib, Sana M.. PY - 2016/4/1. Y1 - 2016/4/1. KW - ACC/AHA Clinical Practice Guidelines. KW - Valsalva maneuver. KW - Wolff-Parkinson-White syndrome. KW - accessory atrioventricular bundle. KW - anti-arrhythmia agents. KW - atrial flutter. KW - atrioventricular nodal reentry. KW - cardiac. KW - catheter ablation. KW - congenital. KW - ...
Guides you through the decision to have catheter ablation for the heart rhythm problem supraventricular tachycardia. Lists benefits and risks of catheter ablation and medical therapy. Includes interactive tool to help you make your decision.
The invention is directed to method and process for discriminating supraventricular tachycardia (SVT) with 1:1 atrial to ventricular conduction (AV conduction). Upon detection of a rapid heart rate, an implanted medical device may determine whether the rhythm exhibits insufficient evidence of sinus tachycardia, whether the rhythm exhibits 1:1 conduction, and whether an electrical signal corresponding to the rhythm exhibits a normal morphology. When these tests have been satisfied, the device determines that an SVT with 1:1 AV conduction has been detected.
Results of Base-Case Analysis:. Among patients who have monthly episodes of supraventricular tachycardia, radiofrequency ablation was the most effective and least expensive therapy and therefore dominated the drug therapy options. Radiofrequency ablation improved quality-adjusted life expectancy by 3.10 quality-adjusted life-years and reduced lifetime medical expenditures by $27 900 compared with long-term drug therapy. Long-term drug therapy was more effective and had lower costs than episodic drug therapy. ...
Supraventricular tachycardia (SVT, PSVT) is one type of heart rhythm disorder in which the heart beats faster than normal. Symptoms may include dizziness, shortness of breath, anxiety, and palpitations. Treatment may include vagal maneuvers, medications, and surgery.
Paroxysmal atrial fibrillation or other supraventricular tachycardia, with more than four episodes per year documented by ECG or Holter monitor
Supraventricular tachycardia (SVT) is when your heart beats too fast. Its caused by faulty electrical signals in your heart. Learn more about this today.
Introduction To compare the impact of an e-learning package with theoretical teaching on the ability of both graduate and undergraduate medical students to learn the management of supraventricular tachycardia. Methods We conducted a randomised, controlled, study at two Welsh medical schools. Participants were graduate-entry and undergraduate medical students, who were randomised (in a 1:1 ratio) to either 1 hour of training using an e-learning package or an hour of lecture-based teaching. The outcome was a comparison, within each group and between groups, of median scores achieved in assessments of knowledge through completion of preintervention, immediate post intervention and 2 weeks postintervention questionnaires. Results Of the 97 participants available for randomisation, 47 underwent teaching using the e-learning package and 50 were taught in the lecture group. Median scores were higher in the e-learning package group than the lecture group, though this difference was not statistically ...
PubMed journal article: Initial and Sustained Response Effects of 3 Vagal Maneuvers in Supraventricular Tachycardia: A Randomized, Clinical Trial. Download Prime PubMed App to iPhone, iPad, or Android
Hoags physicians treat supraventricular tachycardia, which encompasses a number of rapid heart rhythm disorders originating in the upper chambers of the heart.
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Wide QRS tachycardia may be due to ventricular tachycardia (VT), supraventricular tachycardia (SVT) with aberrant conduction, or atrioventricular reentrant tachycardia (AVRT) with an accessory pathway. Children with wide QRS complex tachycardia may p
Expertise, Disease and Conditions: Ablation, Angina, Arrhythmia, Arrhythmogenic Right Ventricular Dysplasia, Atrial Fibrillation, Atrial Flutter, Atrial Tachycardia, Bradycardia, Cardiac Anesthesia, Cardiac Catheterization, Cardiac Disease, Cardiac Electrophysiology, Cardiology, Cardiomyopathy, Cardiovascular Computed Tomography, Cardiovascular Diseases, Cardiovascular Medicine, Cardioversion, Catheter Ablation Therapy, Chest Pain, Coronary Artery Disease, CT Angiography, Defibrillators, Device Therapy, Echocardiography, Echocardiography and Nuclear Cardiology, Electrophysiology, Event Monitors, Heart Attack, Heart Disease, Heart Failure, Holter Monitoring, Implantable Cardioverter-Defibrillator Therapy, Invasive Cardiology, Irregular Heartbeat, Long QT Syndrome, Pacemakers, Pacing, Palpitations, Paroxysmal Supraventricular Tachycardia, Premature Coronary Artery Disease, Stenting, Stress Testing, Supraventricular Tachycardia, Syncope, Tachycardias, Tilt Table Test, Ventricular Arrhythmias, ...
Expertise, Disease and Conditions: Ablation, Angina, Arrhythmia, Arrhythmogenic Right Ventricular Dysplasia, Atrial Fibrillation, Atrial Flutter, Atrial Tachycardia, Bradycardia, Cardiac Anesthesia, Cardiac Catheterization, Cardiac Disease, Cardiac Electrophysiology, Cardiology, Cardiomyopathy, Cardiovascular Computed Tomography, Cardiovascular Diseases, Cardiovascular Medicine, Cardioversion, Catheter Ablation Therapy, Chest Pain, Coronary Artery Disease, CT Angiography, Defibrillators, Device Therapy, Echocardiography, Echocardiography and Nuclear Cardiology, Electrophysiology, Event Monitors, Heart Attack, Heart Disease, Heart Failure, Holter Monitoring, Implantable Cardioverter-Defibrillator Therapy, Invasive Cardiology, Irregular Heartbeat, Long QT Syndrome, Pacemakers, Pacing, Palpitations, Paroxysmal Supraventricular Tachycardia, Premature Coronary Artery Disease, Stenting, Stress Testing, Supraventricular Tachycardia, Syncope, Tachycardias, Tilt Table Test, Ventricular Arrhythmias, ...
This Class 1A drug is useful in both supraventricular and ventricular arrhythmias. It major uses are to maintain sinus rhythm after conversion of atrial flutter or fibrillation, to prevent ventricular tachycardia, and for long-term prophylaxis in patients with AV nodal reentrant tachycardia and automatic atrial tachycardia. Quinidine also has been used to prevent symptomatic premature supraventricular and ventricular complexes. Because it slows conduction and prolongs the refractory period of the accessory pathway and suppresses automaticity of ectopic pacemakers, quinidine may prevent recurrences of paroxysmal supraventricular tachycardia caused by reentry over a concealed pathway or AV reciprocating tachycardia associated with the Wolff-Parkinson-White syndrome. It also may slow the ventricular response to atrial flutter or fibrillation in the preëxcitation syndrome. Quinidine is often preferred to procainamide for long-term therapy because elevated antinuclear antibody titers and ...
These recommendations document of the ESC Study Group on Sports Cardiology specifically address supraventricular arrhythmias but also give guidelines for those performing recreational sports. For different supraventricular arrhythmias and arrhythmogenic conditions, a description of the relationship between the condition and physical activity is given, stressing how arrhythmias can be influenced by exertion or can be a reflection of the (patho)physiological cardiac adaptation to sports participation itself. The following topics are covered: sinus bradycardia; atrioventricular nodal conduction disturbances; pacemakers; atrial premature beats; paroxysmal supraventricular tachycardia without pre-excitation; pre-excitation, asymptomatic or with associated arrhythmias (i.e. Wolff-Parkinson-White syndrome); atrial fibrillation; and atrial flutter. A related document discusses ventricular arrhythmias, channelopathies and implantable cardioverter defibrillators ...
Calcium ions play an important role in the cardiovascular system. They are involved in electrophysiologic processes, link excitation to muscular contraction, control energy storage and utilization, and constrict vascular smooth muscle in coronary and systemic arteries. A new group of pharmacologic agents that block the passage of calcium ions across cell membranes has been developed. These agents act during the slow inward current of cellular depolarization. The most extensive clinical experience has been obtained with four of these agents: verapamil, nifedipine, perhexiline, and diltiazem. Verapamil, which has profound electrophysiologic effects on the slow inward current, is emerging as a valuable antiarrhythmic agent. Re-entrant supraventricular arrhythmias, such as paroxysmal supraventricular tachycardia, are particularly amenable to treatment with intravenous verapamil. Preliminary trials of long-term therapy with oral verapamil for control of atrial fibrillation, atrial flutter, and ...
We compared the influence on immediate postoperative cardiac performance, incidence of supraventricular tachyarrhythmia, fluid balance, and respiratory function of two methods of venous drainage during cardiopulmonary bypass (CPB). Two groups of 50 patients were studied. All 100 patients were operated electively for coronary artery bypass grafting. In group 1, cardiac drainage was achieved by using a two-stage cavo-atrial cannula, group 2 patients had drainage cannulae in the superior and inferior vena cava with caval tapes. There were no significant differences between both groups regarding postoperative hemodynamics. Right ventricular stroke work index in groups 1 and 2 differed insignificantly. The incidence of episodes of supraventricular tachyarrhythmia were 19 in group 1 and 23 in group 2 (p NS). Peroperative fluid balance was higher in group 1, but hematocrit during CPB was in the same range. Blood gas analysis values did not differ among the groups during the first 32 hours. The average ...
Introduction: Supraventricular re-entry tachycardia is a common neonatal and childhood illness often based on accessory pathways or dual atrioventricular-nodal physiology. However, there is only a limited description of atrial rhythm disorders associated with enterovirus infection. Publications of concurrent atrial tachyarrhythmia and hepatitis in infants are even rarer. Case presentation: We report on a 3-month-old female patient with recurrent supraventricular re-entry tachycardia and concurrent hepatic inflammation due to systemic enterovirus infection. Conclusion: Timely diagnosis of multisystem enterovirus infection helps to anticipate complications.
TY - JOUR. T1 - The new coronary vasodilators. T2 - calcium blockers. AU - Hillis, L. D.. PY - 1980/1/1. Y1 - 1980/1/1. N2 - Considerable clinical promise is being shown by a group of investigational drugs that inhibit the movement of calcium into cells, thereby reducing both coronary and systemic vascular resistance and depressing myocardial contractility. In studies conducted here and abroad, calcium blockers appear to reduce the frequency of both typical and variant angina attacks and limit the extent and severity of myocardial injury in acute infarctions. Some of these agents also combat supraventricular tachyarrhythmias and reduce blood pressure in patients with systemic arterial hypertension.. AB - Considerable clinical promise is being shown by a group of investigational drugs that inhibit the movement of calcium into cells, thereby reducing both coronary and systemic vascular resistance and depressing myocardial contractility. In studies conducted here and abroad, calcium blockers appear ...
To this date, we are aware of only one trial published in full evaluating the prognostic impact of supraventricular tachycardia (including AF) in heart failure patients with evidence of preserved systolic function and clinical evidence of heart failure. The DIG trial included 988 patients with LVEF ,0.45 and clinical signs of heart failure in an ancillary study, and these patients were analyzed for incidence of supraventricular tachycardia together with patients in the main trial. The development of supraventricular tachycardia during the study was independently associated with a higher risk of mortality and stroke regardless of baseline EF (28).. In the previous literature there is conflicting evidence about the prognostic importance of AF. Four of five trials with follow-up started before 1990 showed an independent relationship between AF and mortality: one was an epidemiologic study (13); one included patients in the SOLVD trial, in which AF also predicted CV morbidity (6); and two were in ...
thank you for your answer DR Smith! from the text i found, if no visible p-waves, most likely AVNRT. if retrograde p-waves distorts terminal qrs also AVNRT. i understand this. What i dont get is why the AV nodal conduction is faster in AVRT than in AVNRT? the orthodromic AVRT takes the same atrial to ventricular pathway right? is it because AVNRTs have A-V conduction down the slow limb of the AV-node and V-A re-entry up the fast limb and that orthodromic AVRT in thesetting of WPW usually conducts down the fast limb? or could i be getting confused just from not specifying that i meant AVRT in the setting of WPW.. by fast bypass tract you mean mahaim fibers or fast pathway in AV node... ReplyDelete ...
Treatment is needed when you have serious symptoms, such as dizziness, chest pain, or fainting. Treatment also is needed when SVT could weaken your heart or increase your chances of dying.. Your doctor may treat you with medicine or a catheter ablation procedure. If the medicine doesnt work or isnt needed, a catheter ablation procedure can be done in a hospital. Your doctor will thread a wire to your heart through a vein in your leg. This wire delivers cold or hot energy to your heart to destroy the abnormal tissue that is causing the fast heart rate. This is usually a small amount of tissue. ...
BACKGROUND: Electrical cardioversion in patients with various types of supraventricular tachyarrhythmia (SVT) may induce serum cardiac markers elevation. Only a few studies have evaluated the impact of the type of shock waveform on electrical myocard
If you want to learn about supraventricular tachycardia (SVT), go to the topic Supraventricular Tachycardia. What is ventricular tachycardia? Ventricular tachycardia is a type of fast heart rhythm that starts in the lower part of the heart (ventricles). The heart might beat more than 100 beats per minute...
Eighteen consecutive cases of fetal tachycardia referred to the department of Pediatric Cardiology, Uppsala University, were studied retrospectively. All cases were detected at a routine visit at an antenatal clinic. None of the cases had a structural heart disease. Fetal supraventricular tachycardia was found in 8 cases and atrial flutter in 10 cases. In 7 cases, hydrops and heart failure were diagnosed. Antenatal treatment with digoxin, alone or in combination with other antiarrhythmic drugs, was needed in 15 cases. In 10 cases an obvious effect of the therapy was observed. No intrauterine deaths occurred. One infant died postnatally. At birth, 4 infants were in need of neonatal intensive care when delivered. Antiarrhythmic treatment was started in 13 cases postnatally. Late relapse of tachycardia was reported in 3 children. In 1 of these cases the prenatal tachycardia had resolved spontaneously and the infant was not treated antenatally nor during the neonatal period. Although fetal ...
Background: When noninvasive studies remain negative, the diagnosis of unexplained tachycardia in the youth is a dilemma. Invasive electrophysiological study (EPS) requires generally anesthesia and hospitalization in young children. The purpose of the study was to determine the factors of negativity of transesophageal EPS in children and teenagers complaining of tachycardia.. Population: 267 children, aged from 6 to 19 years, mean 15±3, complained of tachycardia and had a normal ECG in sinus rhythm.. Methods: Transesophageal EPS was performed in out-patient clinic without sedation but in presence of parents; EPS consisted of atrial pacing and atrial stimulation with 1 and 2 extrastimuli in control state and after isoproterenol. Long-term Holter monitoring was systematic in patients with negative EPS.. Results: Supraventricular tachycardia (SVT)(AV node re-entrant tachycardia, AV re-entrant tachycardia, atrial tachycardia) was induced in 146 patients (group I) and EPS remained negative in 121 ...
Atrial fibrillation would show an irregularly irregular rhythm without discrete P waves. Wide QRS complexes with rate greater than 100 would be expected in ventricular tachycardia.. A 36-year-old white female nurse comes to the ER due to a sensation of fast heart rate, slight dizziness, and vague chest fullness. Blood pressure is 110/70. The following rhythm strip is obtained, which shows which of the following ...
Indirect evidence of independent atrial activity Capture beat Occasionally an atrial impulse may cause ventricular depolarisation via the normal conduction system. The resulting QRS complex occurs earlier than expected and is narrow. indd 25 conduct normally, thus making a diagnosis of supraventricular tachycardia with aberrancy unlikely. Capture beats are uncommon, and though they confirm a diagnosis of ventricular tachycardia, their absence does not exclude the diagnosis. 8 Capture beat. 9 Fusion beat. 14 s). Consequently, this arrhythmia is commonly misdiagnosed as a supraventricular tachycardia. The QRS complexes have a right bundle branch block pattern, often with a small Q wave rather than primary R wave in lead V1 and a deep S wave in lead V6. When the tachycardia originates from the posterior fascicle the frontal plane axis of the QRS complex is deviated to the left; when it originates from the anterior fascicle, right axis deviation is seen. Right ventricular outflow tract tachycardia ...
I have svt and I was wondering if it is safe to exercise while u may be having a episode.I have recently been trying to get in shape.Its sometimes hard though because before i even start to work out my...
The electrocardiogram (ECG or EKG) provides a picture of the heart rhythm and is recorded by placing adhesive or gel pads on the chest and limbs. If the patient is experiencing SVT during the ECG, a clear diagnosis can be made. Various other types of electrocardiographic monitors may be used to record the patients heart rhythm to help make a diagnosis of SVT. A 24-hour ambulatory Holter monitor may be used to record the heart rhythm continuously for 24 hours. This type of monitor is particularly helpful in documenting asymptomatic or very frequent rhythm abnormalities. For those patients whose arrhythmias occur relatively infrequently, event or loop monitors may be worn. An event monitor is attached to the patients wrist or chest whenever symptoms suggesting SVT occur. Activating a button on the monitor will start a recording of the hearts rhythm. The patient is given instructions about how to download this information to a computer that stores results for later analysis via a special device ...
Paroxysmal supraventricular tachycardia - MedHelps Paroxysmal supraventricular tachycardia Center for Information, Symptoms, Resources, Treatments and Tools for Paroxysmal supraventricular tachycardia. Find Paroxysmal supraventricular tachycardia information, treatments for Paroxysmal supraventricular tachycardia and Paroxysmal supraventricular tachycardia symptoms.
Report Highlights. A better understanding of disease pathogenesis contributing to the development of novel therapeutics for Paroxysmal Supraventricular Tachycardia (PSVT). In the coming years, the Paroxysmal Supraventricular Tachycardia (PSVT) market is set to change due to the rising awareness of the disease, and incremental healthcare spending across the world; which would expand the size of the market to enable the drug manufacturers to penetrate more into the market. The companies and academics that are working to assess challenges and seek opportunities that could influence Paroxysmal Supraventricular Tachycardia (PSVT) R&D. The therapies under development are focused on novel approaches to treat/improve the disease condition.. A detailed portfolio of major pharma players who are involved in fueling the Paroxysmal Supraventricular Tachycardia (PSVT) treatment market. Several potential therapies for Paroxysmal Supraventricular Tachycardia (PSVT) are under investigation. With the expected ...
Results Gender exerts significant influences on the epidemiology, age at onset of various paroxysmal supraventricular tachycardia. With overall incidence, atrioventricular reentrant tachycardia (AVRT) is more common compared with atrioventricular nodal reentrant tachycardia (AVNRT) (AVRT VS AVNRT: 58.7% vs 41.3%). Compared to women, men with paroxysmal supraventricular tachycardia have a higher incidence of atrioventricular accessory pathways, a lower prevalence of atrioventricular nodal reentrant tachycardia. The average age of onset with different types of PSVT varies; it is also affected by gender. The average onset age of AVNRT group, whether in men or women are significantly greater than AVRT group (p , 0.001). The average onset age of dominant pathway-mediated AVRT occurs youger than the occult accessory pathway-mediated group, this significant differences is unaffected by gender. In addition, female onset age of the left side dominant pathway-mediated AVRT is significantly less than men ...
Paroxysmal Supraventricular Tachycardia (SVT, PSVT) - Learn about the causes, symptoms, diagnosis & treatment from the MSD Manuals - Medical Consumer Version.
TY - JOUR. T1 - Management of infants, children, and adolescents with paroxysmal supraventricular tachycardia. AU - Kugler, J. D.. AU - Danford, D. A.. PY - 1996. Y1 - 1996. N2 - Several acceptable options are available for the successful management of children either with an acute PSVT episode or with ongoing episodes. These options include the no treatment management approach. Although an example of an algorithm used in one center is provided for this Medical Progress article, other algorithms also are successfully practiced among pediatric cardiologists together with primary care pediatricians. Current and ongoing updated data related to the important factors of presenting symptoms, natural history, results of the treatment options, and the risk/benefit ratios of the treatment options are essential when one is choosing the specific management approach.. AB - Several acceptable options are available for the successful management of children either with an acute PSVT episode or with ongoing ...
This study is carried out to describe types of clinical characteristic of paroxysmal supraventricular tachycardia attack (PSVT) between young and elderly patients who underwent cardiac electrophysiology test. This is a cross sectional descriptiveand prospective study. 182 patients who were diagnosed with PSVT attack underwent cardiac electrophysiological test at Vietnam Heart Institute during 01/2014-05/2017. The patients were divided into two groups: Group I (n=93) is the young patients (| 60 years of age) and Group II (n=89) is a elderly patients (≥ 60 years of age).: Group I (young patients) accounted for 51.1% and Group II (elderly patients) made up 48.9%. vThe rate of PVST attack in female was 70.0% while that in male was 29.1% (P|0.05); the mean age of elderly patients was higher than younger patients (p | 0.0001). The PVST attacks have moredate positive correlation with structure (R = 0.355) and hypertension (R = 0.314), there are differences between both groups in the structure and
People with paroxysmal supraventricular tachycardia experience a faster-than-normal heart rate. Learn more about the symptoms, treatments, and outlook.
Bruce Stambler from Piedmont Heart Institute, Atlanta, Georgia, USA discusses PSVT Node-1 Trial: Intranasal Etripamil For Conversion of Paroxysmal Supraventricular Tachycardia (PSVT) Node-1 Trial.
Paroxysmal supraventricular tachycardia (PSVT), a common dysrhythmia seen in the emergency department (ED), is usually managed without difficulty and with a favorable prognosis. Serum cardiac troponin I (cTnI) testing provides important risk stratification information in certain patients; its use in …
The incidence and possible mechanism of early spontaneous termination of paroxysmal supraventricular tachycardia was studied in 20 consecutive patients. Episodes of induced tachycardia that terminated spontaneously within the 1st minute after initiat
Are you looking for detailed information on paroxysmal supraventricular tachycardia? If so, read on to learn more about this condition including symptoms, causes, diagnosis, treatment, and prognosis.
Supraventricular tachycardia refers to a group of heart rhythm disorders that causes a rapid heartbeat and originates from one of the top chambers of the heart. These arrhythmias are typically not life-threatening but can lead to symptoms such as palpitations, shortness of breath, chest discomfort, fatigue, dizziness, or fainting spells. Treatment can include medical therapy or a catheter ablation procedure.. Wolff-Parkinson-White Syndrome (WPW) is a congenital disorder in which the patient is born with an extra electrical connection between the top and bottom chambers of the heart. This can lead to supraventricular tachycardia, atrial fibrillation or even sudden cardiac death. First-line treatment for WPW syndrome is a catheter ablation procedure.. During a catheter ablation, electrode-tipped, flexible plastic tubes (called catheters) are inserted into a vein, usually in the groin area. The catheter tips are positioned at different locations inside the heart. Measurements of the heart ...
TY - JOUR. T1 - Change in left ventricular diastolic filling patterns in patients with supraventricular tachycardia treated by radiofrequency ablation. T2 - A Doppler echocardiographic study. AU - Shyu, K. G.. AU - Lin, J. L.. AU - Chen, J. J.. AU - Ko, Y. L.. AU - Hwang, J. J.. AU - Tseng, Y. Z.. AU - Lien, W. P.. N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.. PY - 1994/1/1. Y1 - 1994/1/1. N2 - To evaluate changes in left ventricular diastolic filling patterns resulting from radiofrequency ablation for supraventricular tachycardia (SVT), 44 patients with SVT undergoing radiofrequency ablation (study group), and 16 patients with SVT undergoing electrophysiologic study without ablation (control group) were studied by pulsed Doppler echocardiography. Peak early diastolic filling velocity (E), peak atrial filling velocity (A), and an E/A ratio were obtained from the transmitral flow velocity pattern before and 24-48 h after ablation or electrophysiologic study. In the study ...
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OBJECTIVE: To evaluate the indications, results and complications of radiofrequency catheter ablation in small infants with supraventricular tachycardia due to an accessory atrioventricular pathway. METHODS: Five infants less than 9 months old underwent radiofrequency catheter ablation of accessory pathways. Ablation was done for medically refractory tachyarrhythmia associated with aborted sudden death in two patients, left ventricular dysfunction in one, failure of antiarrhythmic drugs in one, and planned cardiac surgery in one. All five patients underwent a single successful procedure. Three left free wall pathways were ablated by transseptal approach, a right posteroseptal pathway was ablated from the inferior vena cava, and a left posteroseptal pathway was approached from the inferior vena cava into the coronary sinus. A deflectable 5F bipolar electrode catheter with a 3 mm tip was used. RESULTS: A sudden increment in impedance indicative of coagulum formation was observed in two procedures. ...
Atrioventricular nodal re-entrant tachycardia (AVNRT) is the most common form of paroxysmal supraventricular tachycardia (SVT). In this issue of JACC: Clinical Electrophysiology, Kawamura et al. (1) report an interesting small series of patients with incessant AVNRT, comparing features of these patients with those of a larger group of patients with more typical paroxysmal AVNRT. The topic is noteworthy because these uncommon patients present diagnostic and therapeutic challenges to the electrophysiologist. The authors do an admirable job of going through the standard diagnostic maneuvers that are universally taught, but sadly not universally applied in practice, and thereby obtain a definitive diagnosis in their cases, which then leads to correct and successful therapy.. In the scientific literature, there are only 3 prior case reports of true incessant AVNRT (2-4), and interestingly, all were of the fast-slow type. Given this paucity of data, the current report adds important pieces of ...
Below you find the De Voogt ECG Archive which contains more than 2000 ECGs. This archive was collected by W.G. de Voogt, MD, PhD and is available under a creative commons license. This archive is a work in progress. ECGs may have ended up in the wrong category and descriptions are often missing. * Arrhythmias ** Supraventricular *** [[De Voogt ECG Archive - Supraventricular Rhythms - AF,atrial fibrillation]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - Atrial flutter,atrial flutter]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - Atrial rhythm,atrial rhythm]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - Atrial tachycardia,atrial tachycardia]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - AVNRT,AVNRT]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - AVRT,AVRT]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - Holter,Holter]] *** [[De Voogt ECG Archive - Supraventricular Rhythms - Parasystole,parasystole]] *** [[De Voogt ECG Archive - ...
This study shows that propafenone, when tolerated by patients, reduces the rate of recurrence of both atrioventricular reciprocating tachycardia and atrial fibrillation to approximately one fifth of the recurrence rate without treatment. These data, in combination with a previous randomized, placebo-controlled trial in atrial fibrillation and several nonrandomized follow-up studies, provide a reasonable level of certainty that propafenone is an effective agent for these supraventricular arrhythmias, particularly atrial fibrillation. The double-blind, placebo-controlled methods used in this study provide the most unbiased estimate of drug efficacy and are clearly the best way to evaluate new drugs. The unique study end point of time to recurrence of symptomatic documented arrhythmia is an innovative approach that allows the researcher to use established analytic techniques of survival analysis. Adverse experiences are not uncommon with propafenone and can include serious cardiac complications. ...
Drugs have no first-line role in cardiac arrest outside hospital where the highest priority is basic life support, in particular effective chest compressions. Electrical defibrillation should be administered as soon as possible when cardiac arrest is due to ventricular fibrillation or pulseless ventricular tachycardia.6. The management of acute cardiac dysrhythmias requires specific training and experience. Attempts at cardioversion should be made only in hospital unless a patient is critically haemodynamically compromised.. Amiodarone or sotalol are now preferred over lignocaine in the treatment of ventricular tachyarrhythmias, but may do more harm than good if the patient is otherwise stable. Similarly adenosine has largely superseded verapamil for the treatment of atrioventricular nodal re-entry tachycardia (the commonest cause of paroxysmal supraventricular tachyarrhythmia) but has potential adverse effects including bronchospasm.. As with ventricular arrhythmias, it is dangerous to treat ...
Supraventricular arrhythmias (SVAs), with the exception of atrial fibrillation, are a group of rapid, regular tachycardias that use the atria and/or the atrioventricular (AV) node as part of their arrhythmia mechanism. This chapter examines the different electrophysiological mechanisms behind the most common SVAs. Atrial flutter is the result of macrore-entry, confined to the atria. Atrial tachycardia is focal in origin, commonly from muscle sleeves within the pulmonary veins. AV nodal reciprocating tachycardia is the most common form of junctional re-entrant tachycardia. Accessory pathways give rise to the other form of junctional re-entrant tachycardia, AV reciprocating tachycardias. When associated with ventricular preexcitation it gives rise to Wolff-Parkinson-White syndrome. Risk stratification for individuals with ventricular preexcitation may be attempted using non-invasive criteria. The different 12-lead ECG characteristics of each arrhythmia are described together with examples. The acute
Paroxysmal supraventricular tachycardia (PSVT) is an abnormally fast heart beat, which begins and ends suddenly. While the normal resting heart rate is approximately 60-100 beats per minute, a PSVT attack may cause a heart rate as fast as 160-280 beats per minute. People with PSVT have attacks of tachycardia that can last anywhere from a few minutes to several hours. The abnormal heart rate originates in heart tissue other than the ventricles or lower chambers of the heart. Although PSVT is not usually life-threatening, it can cause symptoms including palpitations or a feeling of heart racing, light-headedness, chest discomfort, and rarely, loss of consciousness. Frequent and prolonged episodes, if not treated, can cause weakening of the heart muscle. This can result in an inability of the heart to pump effectively. This may limit a persons physical activity.. ...
Some types of arrhythmia happen more often in children and young adults. Paroxysmal supraventricular tachycardia (PSVT), including Wolff-Parkinson-White syndrome, is more common in young people. PSVT is a fast heart rate that begins and ends suddenly ...
Xanax. Mmmm.Only cost me a car, almost my friends life, and almost mine. =\Other than that, I recommend it fully. =)Dont worry about the fact that it has a 95% addiction rate, cant be that bad.Seriously, dont take it. I have an idea, and Id like for you to test it out the next time you have an attack. Its a technique called the Valsalva maneuver, and it can be used to interrupt the fast heartbeat. Hold your breath and strain, as if you were trying to have a bowel movement, or cough while sitting with your upper body bent forward.Now, could this be your problem?Paroxysmal supraventricular tachycardia (PSVT):An occasional rapid heart rate. Paroxysmal means from time to time.SymptomsAnxietyChest tightnessPalpitations (a sensation of feeling the heart beat)Rapid pulseShortness of breathAdditional symptoms that may be associated with this condition:DizzinessFaintingNote: Symptoms may start and stop suddenly, and can last for a few minutes or several hours. A PSVT lasting more than half of the ...
The ECG findings of atrioventricular nodal reentrant tachycardia (AVNRT) a form of supraventricular tachycardia (SVT) are discussed.
We present two cases of cardiac sarcoidosis whose first presentation was in pregnancy. All findings confirmed the diagnosis of sarcoidosis with cardiac involvement in both patients. The first patient, a 37-year-old, presented with dizziness and atrial fibrillation at 16 weeks' gestation. Echocardiography revealed thickened interventricular septum with a speckled pattern. Cardiac MRI after delivery showed myocardial oedema/inflammation corresponding with the same regions with early enhancement and epicardial delayed enhancement in the basal to mid-inferoseptal and basal anterior left ventricular myocardial segments. Transbronchial biopsy revealed histology of scanty fragments of inflamed bronchial mucosa. The second patient, a 31-year-old, was 17 weeks pregnant when she presented with daily palpitations and shortness of breath. She had prolonged episodes of supraventricular tachycardia. Echocardiography revealed a speckled septal and right ventricular wall pattern. Cardiac MRI after delivery showed
Paroxysmal supraventricular tachycardias with narrow QRS are defined as rhythms originating from above the His bundle, heart rate higher 100 bpm and QRS complex of less t..
Tambocor is a drug used in preventing arrhythmias (abnormal heart rhythm) such as paroxysmal supraventricular tachycardia, paroxysmal atrial fibrillation/flutter, and documented...
Adenosine is an anti arrhythmic agent which is useful in terminating the paroxysmal supraventricular tachycardia. Adenosine has a negative chronotropic action on the sino atrial node which will slow down the atrioventricular node conduction
Background-Focal atrial tachycardia (FAT) is an uncommon cause of supraventricular tachycardia in children. Incessant FAT can lead to tachycardia-induced cardiomyopathy. There is limited information regarding the clinical course and management of FAT. This study characterizes current management strategies for FAT in children including the prevalence of spontaneous resolution and the role of catheter ablation. Methods and Results-This is a retrospective chart review of pediatric patients with FAT managed between January 2000 and November 2010 at 10 pediatric centers. There were 249 patients with a median age at diagnosis of 7.2 years (95% confidence interval (CI) 5.8-10.4 years). Cardiomyopathy was observed in 28%. Resolution of FAT occurred in 89% including spontaneous resolution without catheter ablation in 34%. Antiarrhythmic medications were used for initial therapy in 154 patients with control of FAT in 72%. Among first-line medications, beta blockers were the most common (53%) and effective ...
Considering the significant number of body-building enthusiasts, physicians will continue to encounter clenbuterol abuse in their clinical practices.
Aside from no swimming, and not doing strenuous exercise, Long QT Syndrome can be strange to manage. After doing my research and seeing that sudden loud noises can trigger it, I realised that many of my night episodes were probably because of my phone vibrating on my bedside table - not particularly loud, but in the silence, it does make me jump. Ive had the vibrate function switched off for about five months now and the night episodes have decreased. Weird adjustment, but it works for me. There is a lot of monitoring involved, as there always has been since I was seventeen. I hate the goo of the electrodes, and I hate when you walk into the ECG room and its cold and you have to take off your bra. I hate the ambulatory ECGs (worn for 24 hours or a week) because theyre itchy and you cant take a bath (at the moment I can only take baths, as showers make me really dizzy). I dont mind echos (echocardiogram - an ultrasound of your heart) because I find it cool that I can hear the whoosh-whoosh ...
Atrial fibrillation, ablation, ventricular arrhythmias, SVT - supraventricular tachycardia, cardiac electrophysiology, pacemakers, ICDs and CRT devices, resynchronisation therapy - CRT, laser balloon therapy for atrial fibrillation, left atrial appendage occlusion device implantation, reveal linq device ...
Atrial tachycardia is defined as a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance. Atrial tachycardia can be observed in persons with normal hearts and in those with structurally abnormal hearts, including those with cong...
BACKGROUND: Patients with myotonic dystrophy type 1 (DM1) have a three-fold higher risk of sudden cardiac death (SCD) than age-matched healthy controls. Despite numerous attempts to define the cardiac phenotype and natural history, existing literature suffers from low power, selection-bias and lack of controls. Thus, the optimal strategy for assessing cardiac involvement in DM1 is unclear. METHOD: In this large single-centre study, we evaluated 129 unselected DM1 patients (49.6% men), mean (SD) age 44 (14.7) years with family history, physical examination, electrocardiogram (ECG), echocardiography, Holter-monitoring and muscle strength testing. RESULTS: Cardiac involvement was found in 71 patients (55%) and included: 1) Conduction abnormalities: atrio-ventricular block grade I (AVB grade I) (23.6%), AVB grade II (5.6%), right/left bundle branch block (5.5/3.2%) and prolonged QTc (7.2%); 2) arrhythmias: atrial fibrillation/flutter (4.1%), other supraventricular tachyarrhythmia (7.3%) and ...
Comment: Adenosine is the drug of choice for AV nodal re-entrant tachycardia. It may also work in AV re-entrant tachycardia, although some have expressed concern about possible favouring of antegrade conduction down an accessory pathway. Here too, amiodarone is becoming more well recognised as a therapeutic option, especially in patients with impaired left ventricular function. Class 1C agents are potentially very negatively inotropic. Longer acting beta blockers and (especially) calcium channel blockers like verapamil may work well, but carry an attendant risk of cardiovascular collapse, especially if youve mis-diagnosed VT as supraventricular tachycardia. References: ...
Atrial tachycardia is a type of supraventricular tachycardia. Learn about innovative treatment of this heart arrhythmia at Mayo Clinic.
Background:. Patients with ischemic heart disease often report multiple symptoms, including angina and palpitations.. Ranolazine is a novel antianginal and antiischemic drug that reduces intracellular sodium and calcium accumulation during ischemia thus limiting ischemic injury. Furthermore, ranolazine has antiarrhythmic effects which are largely a result of the drugs effect on multiple ion channels.. It has previously been shown that treatment with ranolazine can reduce the frequency of supraventricular and ventricular tachycardia in the short term. In a subgroup analysis of the MERLIN-TIMI 36 trial, the continuous ECGs of 6,351 patients were analyzed. The results showed that, in comparison with placebo, treatment with ranolazine resulted in fewer episodes of ventricular tachycardia that lasted 8 beats or longer (5.3% versus 8.3%; P ,0.001), and in fewer episodes of supraventricular tachycardia (44.7% versus 55%; P ,0.001) and new-onset atrial fibrillation (1.7% versus 2.4%; P=0.08).. It ...
Heart arrhythmia, also known as cardiac dysrhythmia or irregular heartbeat, is a group of conditions in which the heartbeat is irregular, too fast, or too slow. A heart rate that is too fast - above 100 beats per minute in adults - is called tachycardia and a heart rate that is too slow - below 60 beats per minute - is called bradycardia. Many types of arrhythmia have no symptoms. When symptoms are present these may include palpitations or feeling a pause between heartbeats. More seriously there may be lightheadedness, passing out, shortness of breath, or chest pain. While most types of arrhythmia are not serious, some predispose a person to complications such as stroke or heart failure. Others may result in cardiac arrest. There are four main types of arrhythmia: extra beats, supraventricular tachycardias, ventricular arrhythmias, and bradyarrhythmias. Extra beats include premature atrial contractions, premature ventricular contractions, and premature junctional contractions. Supraventricular ...
Purpose: Catheter ablation (CA) procedures are characterized by exposure to ionizing radiations (IR). IR can cause DNA damage and may lead to carcinogenesis if not efficiently repaired. The primary endpoint of this study is to investigate whether intravenous administration of N-acetylcysteine prior to CA procedure may prevent systemic oxidative stress and genomic DNA damage induced by exposure to IR. Methods: The Cardiac Arrhythmia catheter ablation procedures guided by x-Ray imaging: N-Acetylcysteine Protection Against radiation induced Cellular damagE (CARAPACE) study is a prospective, randomized, single-blinded, parallel-arm monocenter study enrolling 550 consecutive patients undergoing CA at the Arrhythmology Unit of Centro Cardiologico Monzino (CCM). Inclusion criteria are age ≥ 18, indication for CA procedure guided by IR imaging, and written informed consent. IR levels will be measured via fluoroscopy time, effective dose, and dose area product. Glutathione and glutathione disulfide ...
Rajab et al. (16) described 11 cases of CGL, of which 6 experienced sudden cardiac death at an early age. They reported the case of a 14-year-old boy with CGL who was found to have had multiple episodes of palpitations and syncope secondary to both ventricular and supraventricular tachycardia, as well as sinus bradycardia. Electrocardiogram (ECG) revealed a prolonged corrected QT of ∼ 450-480 ms, for indicating long QT syndrome. Long QT syndrome is a congenital disorder characterized by ECG evidence of a prolonged QT interval, which may lead to ventricular tachyarrhythmias, syncope, cardiac arrest, or sudden cardiac death. Another patient was noted to have syncope, with a cardiac loop recorder revealing supraventricular and ventricular tachycardia and frequent ventricular extrasystoles; eventually, at the age of 13 years, this patient sustained cardiac arrest secondary to ventricular fibrillation that was refractory to defibrillation. Another five patients reported by Rajab et al. sustained ...
Patients who have an accessory pathway (AP) of atrioventricular (AV) conduction may develop circus movement tachycardia otherwise known as atrioventricular re-entrant tachycardia (AVRT). Orthodromic AVRT is the most common form. It occurs as a result of antegrade conduction through the normal AV conduction system and retrograde conduction to the atria via the AP. Less commonly, conduction occurs in the opposite direction resulting in antidromic AVRT. Tachycardia may also involve multiple APs which may provide both antegrade and retrograde conduction and may alternate antegradely or retrogradely. Tachycardia may occur in which the AP simply acts as a bystander, and does not participate in the tachycardia mechanism. When atrial fibrillation is conducted to the ventricles via and AP, the resultant ventricular rate may be extremely rapid, placing the patient at risk of developing ventricular fibrillation and cardiac arrest. This paper reviews the anatomical and physiological substrates involved in ...
Farkowski MM, Pytkowski M, Maciag A, Golicki D, Wood KA, Kowalik I, et al. Gender-related differences in outcomes and resource utilization in patients undergoing radiofrequency ablation of supraventricular tachycardia: results from Patients Perspective on Radiofrequency Catheter Ablation of AVRT and AVNRT Study. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. 2014;Jun 11. pii: euu130. [Epub ahead of print ...
Patients with supraventricular tachycardia, atrial fibrillation, and other illnesses may be trained to perform vagal maneuvers ... Vibhuti N., Singh; Gugneja, Monika (22 August 2005). "Supraventricular Tachycardia". eMedicineHealth.com. Archived from the ...
In individuals with supraventricular tachycardia (SVT), adenosine is used to help identify and convert the rhythm. Certain SVTs ... When given for the evaluation or treatment of a supraventricular tachycardia (SVT), the initial dose is 6 mg to 12 mg, ... Diagnosis: Supraventricular tachycardia with aberrant conduction; intravenous (IV) adenosine". CJEM. 10 (6): 572-73, 581. PMID ... AV nodal reentrant tachycardia (AVNRT). In addition, atrial tachycardia can sometimes be terminated with adenosine. Fast ...
It causes supraventricular tachycardia during exercise. Most of the time this causes cessation of exercise when the SVT occurs ...
... and other forms of supraventricular tachycardia (e.g., AV nodal reentrant tachycardia). Adults who survived congenital heart ... which may make it more difficult to separate from other supraventricular tachycardias or ventricular tachycardia. QRS complexes ... It is a type of supraventricular tachycardia. High blood pressure and valvular heart disease are the most common alterable risk ... During AF, if all of the impulses from the atria passed through the AV node, there would be severe ventricular tachycardia, ...
... supraventricular tachycardia but occurs at a rate less than one-tenth of the most common supraventricular tachycardia (atrial ... A supraventricular tachycardia with a ventricular heart rate of 150 beats per minute is suggestive (though not necessarily ... Evaluation and initial treatment of supraventricular tachycardia". New England Journal of Medicine. 367 (15): 1438-48. doi: ... it is usually associated with a fast heart rate and is classified as a type of supraventricular tachycardia. Atrial flutter is ...
Cardiac rhabdomyoma in a neonate with supraventricular tachycardia. World J Pediatr. Congenit Heart Surg; 1;5(1):110-3. ... "Cardiac Rhabdomyoma in a Neonate With Supraventricular Tachycardia". World Journal for Pediatric and Congenital Heart Surgery. ...
The code title (or rubric) is Supraventricular tachycardia. However, there are several other clinical concepts that are also ... Amongst them are paroxysmal atrial tachycardia, paroxysmal junctional tachycardia, auricular tachycardia and nodal tachycardia ... So, in the tachycardia example above, each type and clinical term for tachycardia would have its own code listed. This makes ...
Tachycardias include SVT (supraventricular tachycardia) and VT (ventricular tachycardia). SVT does not cause syncope except in ... Ventricular tachycardia originate in the ventricles. VT causes syncope and can result in sudden death. Ventricular tachycardia ... This condition, called tachycardia-bradycardia syndrome, is usually caused by sinoatrial node dysfunction or block or ... On standing the person will experience reflex tachycardia (at least 20% increased over supine) and a drop in blood pressure. ...
... supraventricular tachycardia, ventricular tachycardia, congestive heart failure, and prevention of migraine headaches. It is an ... Off-label uses include supraventricular tachycardia and thyroid storm. Metoprolol is sold in formulations that can be taken by ...
... is used in the treatment of many types of supraventricular tachycardias, including AV nodal re-entrant tachycardia ( ... This includes ventricular and supraventricular tachycardias. Its use is only recommended in those with dangerous arrhythmias or ... It has use in the treatment of right ventricular outflow tract (RVOT) tachycardia and in the suppression of arrhythmias in ... flecainide has been useful in the treatment of ventricular tachycardias that are not in the setting of an acute ischemic event ...
The majority of time symptomatic WPW fits the definition of AVRT (Supraventricular tachycardia) however AVNRT (dual AV nodal ... Supraventricular Tachycardia: Atrioventricular Nodal Reentry and Wolff-Parkinson-White Syndrome. Goodman & Gilman's The ... AV reentrant tachycardia AV nodal reentrant tachycardia "Cardiac Arrhythmias". Retrieved 2007-07-21. Am J Cardiol. 1984 Jul 30; ... Re-entry ventricular arrhythmia is a type of paroxysmal tachycardia occurring in the ventricle where the cause of the ...
"Meta-analysis of ablation of atrial flutter and supraventricular tachycardia". Am. J. Cardiol. 104 (5): 671-7. doi:10.1016/j. ... For automatic atrial tachycardias, the success rates are 70-90%.[citation needed] The potential complications include bleeding ...
Supraventricular tachycardias include atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia. ... There are four main types of arrhythmia: extra beats, supraventricular tachycardias, ventricular arrhythmias, and ... A heart rate that is too fast - above 100 beats per minute in adults - is called tachycardia and a heart rate that is too slow ... Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. Arrhythmias are due to problems with the ...
Supraventricular tachycardias include atrial fibrillation, atrial flutter and paroxysmal supraventricular tachycardia. ... Wandering atrial pacemaker Atrial tachycardia Multifocal atrial tachycardia Supraventricular tachycardia (SVT) Atrial flutter ... Re-entry is also responsible for most paroxysmal supraventricular tachycardia, and dangerous ventricular tachycardia. These ... It can also evaluate the risk in people with Wolff-Parkinson-White syndrome, as well as terminate supraventricular tachycardia ...
These agents are particularly useful in the treatment of supraventricular tachycardias. They decrease conduction through the AV ... Adenosine is used intravenously for terminating supraventricular tachycardias. Magnesium sulfate, an antiarrhythmic drug, but ... "protocol for management of haemodynamically stable ventricular tachycardia - General Practice Notebook". www.gpnotebook.co.uk. ... ventricular tachycardia, and ventricular fibrillation. Many attempts have been made to classify antiarrhythmic agents. The ...
Further cardiopathies: the risk of ischaemic stroke is increased by supraventricular tachycardias. This also applies to ...
"Doubling of the Ventricular Rate by Interpolated Junctional Extrasystoles Resembling Supraventricular tachycardia". Pacing and ... "Bidirectional fascicular tachycardia with alternating axis deviation following acute myocardial infarction". International ...
The Valsalva maneuver may be used to arrest episodes of supraventricular tachycardia. The maneuver can sometimes be used to ... 25 (5). Lim, SH; Anantharaman, V; Teo, WS; Goh, PP; Tan, ATH (1998). "Comparison of Treatment of Supraventricular Tachycardia ... "Potential dangers of the Valsalva maneuver and adenosine in paroxysmal supraventricular tachycardia--beware pre-excitation". ... During this time the pulse rate increases (compensatory tachycardia). Pressure release The pressure on the chest is released, ...
Lim, SH; Anantharaman, V; Teo, WS; Goh, PP; Tan, AT (Jan 1998). "Comparison of treatment of supraventricular tachycardia by ... "Heart rate is a predictor of success in the treatment of adults with symptomatic paroxysmal supraventricular tachycardia". Eur ... Tachycardia algorithm. Advanced Cardiac Life Support Provider Manual (2007). Greenwood, Richard J.; Dupler, Donald A. (1962-08- ... massage is used to diagnose carotid sinus syncope and is sometimes useful for differentiating supraventricular tachycardia (SVT ...
Lim SH, Anantharaman V, Teo WS, Goh PP, Tan AT (January 1998). "Comparison of treatment of supraventricular tachycardia by ... "Heart rate is a predictor of success in the treatment of adults with symptomatic paroxysmal supraventricular tachycardia". ... massage is used to diagnose carotid sinus syncope and is sometimes useful for differentiating supraventricular tachycardia (SVT ... from ventricular tachycardia. It, like the valsalva maneuver, is a therapy for SVT. However, it is less effective than ...
Cyrus was born with supraventricular tachycardia, a condition causing an abnormal resting heart rate. Her birth name, Destiny ...
The team establishes the fact that her ear pain was caused by supraventricular tachycardia. While treating her, the men on the ...
A form of ventricular tachycardia originating from this anatomical structure is called RVOT tachycardia.[citation needed] The ... In the right ventricle, the inflow and outflow is separated by the supraventricular crest. In the left ventricle, the anterior ...
... is used for controlling ventricular rate in supraventricular tachycardia and migraine headache prevention. It is a ... and supraventricular tachycardia. It may also be used for the prevention of migraines and cluster headaches. It is given by ...
Rarely, a cardiac arrhythmia, such as atrial fibrillation on top of supraventricular tachycardia, may develop. Because of these ...
The most common type of irregular heartbeat that occurs is known as paroxysmal supraventricular tachycardia. The cause of WPW ... Wedd AM (1921). "Paroxysmal tachycardia, with reference to nomotropic tachycardia and the role of the extrinsic cardiac nerves ... of patients with supraventricular tachycardiaThe Task Force for the management of patients with supraventricular tachycardia of ... during episodes of supraventricular tachycardia. WPW is also associated with a very small risk of sudden death due to more ...
Having felt ill the previous day, he went to hospital and was diagnosed with supraventricular tachycardia. This was treated by ...
... supraventricular tachycardia, ventricular tachycardia, and ventricular fibrillation. Acute exposure may also lead to angina, ... The most common adverse reactions in people treated with Numbrino are hypertension, tachycardia, and sinus tachycardia. Cocaine ...
The cause of the heart attack was supraventricular tachycardia, which causes a dangerously high heart rate. He is interred ...
... can also be used to terminate supraventricular tachycardia in an acute primary care setting. Hofmann E, Behr ...
Another possible complication is "pacemaker-tracked tachycardia," where a supraventricular tachycardia is tracked by the ... This is becoming exceedingly rare as newer devices are often programmed to recognize supraventricular tachycardias and switch ... This is known as fast-pacing, overdrive pacing, or anti-tachycardia pacing (ATP). ATP is only effective if the underlying ... a b eMedicine , Pacemaker-Mediated Tachycardia Author: Brian Olshansky, MD. Coauthor(s): Chirag M Sandesara, MD; Noel G Boyle, ...
ସୁପ୍ରାଭେଣ୍ଟ୍ରିକୁଲାର ଟାକିକାର୍ଡ଼ିଆ (ଇଂରାଜୀ ଭାଷାରେ Supraventricular tachycardia ବା SVT) କ‌ହିଲେ ଅସାଧାରଣ ଦୃତ ହୃତ୍‌ସ୍ପନ୍ଦନ ବୁଝାଏ ଯାହା ... Al-Zaiti, SS; Magdic, KS (September 2016). "Paroxysmal Supraventricular Tachycardia: Pathophysiology, Diagnosis, and Management ...
It is sometimes known as paroxysmal atrial tachycardia (PAT). Several types of supraventricular tachycardia are known to exist ... tachycardia Atrial tachycardia Multifocal atrial tachycardia Junctional tachycardia Wide complex Ventricular tachycardia, any ... Tachycardia >169 bpm 1-2 years: Tachycardia >151 bpm 3-4 years: Tachycardia >137 bpm 5-7 years: Tachycardia >133 bpm 8-11 years ... Tachycardia > 159 beats per minute (bpm) 3-6 days: Tachycardia >166 bpm 1-3 weeks: Tachycardia >182 bpm 1-2 months: Tachycardia ...
Supraventricular tachycardia, Paroxysmal tachycardia, Junctional ectopic tachycardia, Sinus tachycardia, Atrial tachycardia, AV ... Supraventricular[edit]. Main article: Supraventricular tachycardia. This is a type of tachycardia that originates from above ... Tachycardias may be classified as either narrow complex tachycardias (supraventricular tachycardias) or wide complex ... AV nodal reentrant tachycardia[edit]. AV nodal reentrant tachycardia (AVNRT) is the most common reentrant tachycardia. It is a ...
... a self-limiting burst of supraventricular tachycardia, or the dangerous ventricular tachycardia. ... Individuals may sense a tachycardia as a pounding sensation of the heart, known as palpitations. If a tachycardia lowers blood ... Most tachycardias are not dangerous. Anything that increases adrenaline or its effects on the heart will increase the heart ... current across the chest wall to the heart and it is used for treatment of supraventricular or pulsed ventricular tachycardia. ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ...
心律不整分為四大類:期外收縮(英语:Premature_heart_beat)、心室上心搏過速(英语:supraventricular tachycardias)、心室心律不整及心搏過緩。期外收縮包括心房期外收縮及心室期外收縮(英语:premature ... 額外的心跳(英语:
... may be difficult to distinguish from the previous T wave and one may confuse it with a paroxysmal supraventricular tachycardia ... Sinus tachycardia accompanying a myocardial infarction may be indicative of cardiogenic shock. Sinus tachycardia is usually a ... Sinus tachycardia can present in more than a third of the patients with AMI but this usually decreases over time. Patients with ... Sinus tachycardia (also colloquially known as sinus tach or sinus tachy) is a sinus rhythm with an elevated rate of impulses, ...
... supraventricular tachycardia (SVT), atrial tachycardia, Multifocal Atrial Tachycardia (MAT) and some types of ventricular ... 2010). "Cryoablation Versus Radiofrequency Energy for the Ablation of Atrioventricular Nodal Reentrant Tachycardia (the CYRANO ... also called atrioventricular nodal reentrant tachycardia or AVNRT, ablation can also be accomplished by cryoablation (tissue ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... including sinus tachycardia, atrioventricular nodal re-entrant tachycardia, atrial fibrillation, or atrial flutter.[4] ... The only morbidity associated with the syndrome is the occurrence of paroxysmal episodes of tachycardia which may be of several ... A short PR interval found incidentally on an ECG without episodes of tachycardia is simply a benign ECG variant. ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... "An introduction to clinical electrocardiography - Supraventricular Arrhythmias". ECG Learning Center. University of Utah.. ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... Groups of three abnormal beats are called triplets and are considered a brief run of non-sustained ventricular tachycardia ( ... do not have a compensatory pause since they reset the sinus node but atrial or supraventricular bigeminy can occur. If the APCs ... NSVT), and if the grouping lasts for more than 30 seconds, it is ventricular tachycardia (VT).[2] ...
... artery and the carotid artery can be massaged against this tubercle to relieve the symptoms of supraventricular tachycardia. ...
It may be very difficult to differentiate between ventricular tachycardia and a wide-complex supraventricular tachycardia in ... The proper diagnosis is important, as the misdiagnosis of supraventricular tachycardia when ventricular tachycardia is present ... "Differentiation of ventricular tachycardia from supraventricular tachycardia with aberration: value of the clinical history". ... Supraventricular tachycardia with aberrancy, ventricular pacing, ECG artifact[4]. Prevention. Implantable cardiac defibrillator ...
Tachycardia (Supraventricular tachycardia, AV nodal reentrant tachycardia, Ventricular tachycardia) - Atrial fibrillation - ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ...
... using radio frequency waves on the heart is used to cure a variety of cardiac arrhythmiae such as supraventricular tachycardia ... Wolff-Parkinson-White syndrome (WPW), ventricular tachycardia, and more recently as management of atrial fibrillation. The term ...
Adverse reactions to atropine include ventricular fibrillation, supraventricular or ventricular tachycardia, dizziness, nausea ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... "Left posterior fascicular block: a new endpoint of ablation for verapamil-sensitive idiopathic ventricular tachycardia". Chin ...
Tachycardia (Supraventricular tachycardia, AV nodal reentrant tachycardia, Ventricular tachycardia) - Atrial fibrillation - ...
Ffibriliad atrïaidd, diffyg gorlenwad y galon, supraventricular tachycardia, arhythmia'r galon Beichiogrwydd. Categori ...
Paroxysmal supraventricular tachycardia or atrial fibrillation has been reported as the underlying cause in up to 5% of ...
Supraventricular tachycardias include atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia. ... There are four main types of arrhythmia: extra beats, supraventricular tachycardias, ventricular arrhythmias, and ... A heart rate that is too fast - above 100 beats per minute in adults - is called tachycardia and a heart rate that is too slow ... Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia.[49][50] Arrhythmias are due to problems ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... "Atrial tachycardia". ECG Interpretation: An Incredibly Easy! Pocket Guide (4th ed.). Lippincott Williams & Wilkins. 2007. pp. ... Acute occurrence is usually non-life-threatening, but chronic occurrence can progress into tachycardia,[1] bradycardia or ... Phibbs, B. (1963). "Paroxysmal Atrial Tachycardia with Block Around the Ectopic Pacemaker: Report of a Case". Circulation. 28 ( ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ... Supraventricular extrasystole[edit]. A supraventricular extrasystole (SVES) is an extrasystole or premature electrical impulse ... "Supraventricular extrasystole".. *^ Ernst., Mutschler, (1995-01-01). Drug actions : basic principles and theraputic aspects. ... "Management of Common Arrhythmias: Part I. Supraventricular Arrhythmias - American Family Physician". www.aafp.org. Retrieved ...
... notably supraventricular tachycardia and atrial fibrillation) and/or allergy (rash, angioedema, anaphylaxis).[9] ...
Indications for Class Ia agents are supraventricular tachycardia, ventricular tachycardia, symptomatic ventricular premature ... "Ventricular Tachycardia Medication: Antiarrhythmics, Class IC". Retrieved 4 October 2017.. *^ Wood JN, Boorman J (2005). " ... Class Ic agents are indicated for supraventricular arrhythmias (i.e. atrial fibrillation) and as a last line treatment for ... Class Ib agents are indicated for the treatment of ventricular tachycardia and symptomatic premature ventricular beats, and ...
Tachycardia. (paroxysmal and sinus). Supraventricular. *Atrial *Multifocal. *Junctional *AV nodal reentrant. *Junctional ...
Supraventricular tachycardia is a type of abnormal heart rhythm in which the heart beats very quickly. ... Taquicardia supraventricular. What Is Supraventricular Tachycardia (SVT)?. Supraventricular tachycardia (SVT) is a type of ... Who Gets Supraventricular Tachycardia (SVT)?. Supraventricular tachycardia usually affects infants, young kids, and teens. ... Supraventricular tachycardia (soo-pruh-ven-TRIK-yuh-ler tak-ih-KAR-dee-uh) often happens suddenly and can last for a few ...
... is another type of "short-circuit" arrhythmia. It may result either from atrio- ... ventricular nodal re-entrant tachycardia (AVNRT) or from an accessory pathway, which may occur as part of the Wolff-Parkinson- ... atrio-ventricular reciprocating tachycardia). Under rare circumstances, patients with Wolff-Parkinson-White syndrome can ...
Hi Everyone Ive had VT/SVT for years - not controlled but recently diagnosed via reveal monitor. Reading alot here of people going to see electrocardiologist and wonder if I should be pushing for t...
People with paroxysmal supraventricular tachycardia experience a faster-than-normal heart rate. Learn more about the symptoms, ... How is paroxysmal supraventricular tachycardia treated?. You might not need treatment if your symptoms are minimal or if you ... How is paroxysmal supraventricular tachycardia diagnosed?. If you have an episode of fast heartbeats during an examination, ... What is paroxysmal supraventricular tachycardia?. Episodes of faster-than-normal heart rate characterize paroxysmal ...
Find Paroxysmal supraventricular tachycardia information, treatments for Paroxysmal supraventricular tachycardia and Paroxysmal ... MedHelps Paroxysmal supraventricular tachycardia Center for Information, Symptoms, Resources, Treatments and Tools for ... Posts on Paroxysmal supraventricular tachycardia. Paroxysmal afib and SVT like symptoms as well as Bradycardia - Heart Disease ... I have been diagnosed with Supraventricular Tachycardia along with a sinus arrhythmia. This... ...
Children with supraventricular tachycardia may have episodes that come and go suddenly. ... Supraventricular tachycardia is one type of fast heartbeat. ... Supraventricular tachycardia (SVT) is one type of tachycardia. ... What is supraventricular tachycardia? Supraventricular tachycardia (pronounced sue-prah-ven-TRIK-yu-lar tack-ih-CAR-dee-ah) is ... Supraventricular tachycardia in children. SVT is the most common heart rhythm problem in children. It occurs in as many as 1 in ...
Paroxysmal supraventricular tachycardia (PSVT) is episodes of rapid heart rate that start in a part of the heart above the ... Paroxysmal supraventricular tachycardia (PSVT) is episodes of rapid heart rate that start in a part of the heart above the ... PSVT; Supraventricular tachycardia; Abnormal heart rhythm - PSVT; Arrhythmia - PSVT; Rapid heart rate - PSVT; Fast heart rate ... 2015 ACC/AHA/ HRS guideline for the management of adult patients with supraventricular tachycardia: a report of the American ...
This group of tachycardias is the most common of the paroxysmal atrial mechanisms and is seen most frequently in women. In ... Ablation of the tachycardia was performed at the right angle intersection of lines drawn from the His and coronary sinus sites ... Ablation of the tachycardia was performed at the right angle intersection of lines drawn from the His and coronary sinus sites ... An example of AVNRT tachycardia is shown in Figure 1. The P waves are hidden within the QRS complex, as this is a slow-fast ...
The term tachycardia refers to a rapid heartbeat of over 100 beats per minute. Supraventricular tachycardia is frequently ... How Is Supraventricular Tachycardia Classified?. An SVT is classified medically on the basis of the path that the electrical ... How Is Supraventricular Tachycardia Treated?. Medications may be used to treat many patients with SVT. The most commonly used ... How Is Supraventricular Tachycardia Diagnosed?. The electrocardiogram (ECG or EKG) provides a picture of the heart rhythm and ...
Adenosine for the Management of Neonatal and Pediatric Supraventricular Tachycardia. Contributing Editor: Marcia L. Buck, Pharm ... In 1995, Kipel and colleagues reported a case of malignant wide complex tachycardia in a 10 year old boy who received adenosine ...
Paroxysmal supraventricular tachycardia (paroxysmal SVT) is an episodic condition with an abrupt onset and termination. (See ... encoded search term (Paroxysmal Supraventricular Tachycardia) and Paroxysmal Supraventricular Tachycardia What to Read Next on ... Paroxysmal Supraventricular Tachycardia. Updated: Apr 05, 2017 * Author: Monika Gugneja, MD; Chief Editor: Mikhael F El-Chami, ... Supraventricular tachycardia. ECG diagnosis and anatomy. Eur Heart J. 1997 May. 18 Suppl C:C2-11. [Medline]. ...
Article about Paroxysmal supraventricular tachycardia (PSVT). Includes illustrations and topical information provided by ADAM ... Paroxysmal supraventricular tachycardia (PSVT) is episodes of rapid heart rate that start in a part of the heart above the ... Treatment of Paroxysmal supraventricular tachycardia (PSVT). PSVT that occurs only once in a while may not need treatment if ... Paroxysmal supraventricular tachycardia (PSVT) Symptoms. Symptoms most often start and stop suddenly. They can last for a few ...
Ask questions and get answers about Supraventricular Tachycardia. Our support group helps people share their own experience. 16 ... Join the Supraventricular Tachycardia group to help and get support from people like you. ... Our support group for Supraventricular Tachycardia has 16 questions and 84 members. Updated 27 Jul 2020. ...
... tachycardia that is seen. Finally, junctional ectopic tachycardia (JET) is a rare tachycardia caused by increased automaticity ... junctional tachycardia):[citation needed] AV nodal reentrant tachycardia (AVNRT) or junctional reciprocating tachycardia (JRT) ... Supraventricular tachycardia (SVT) is an abnormally fast heart rhythm arising from improper electrical activity in the upper ... Re-entrant Supraventricular Tachycardia (RSVT) Archived June 19, 2006, at the Wayback Machine, at BobbyJulich.com "USA ...
... is a type of supraventricular tachycardia.[2] Often people have no symptoms.[1] ... Paroxysmal supraventricular tachycardia (PSVT) MedlinePlus Medical Encyclopedia. Paroxysmal supraventricular tachycardia (PSVT) ... Supraventricular tachycardia Health insurance. Neoliberal rationality. Amorality and criminality of neoliberal elite. The ... Paroxysmal supraventricular tachycardia (PSVT). News. Medical Industrial Complex. Recommended Links. Echocardiography Potable ...
... (SVT) means that from time to time your heart beats very fast for a reason other than exercise, ... Supraventricular Tachycardia. Topic Overview. What is supraventricular tachycardia?. Supraventricular tachycardia (SVT) means ... SVT is also called atrial tachycardia, paroxysmal supraventricular tachycardia (PSVT), or paroxysmal atrial tachycardia (PAT). ... Ongoing treatment of recurring supraventricular tachycardia. If you have recurring episodes of supraventricular tachycardia, ...
Supraventricular tachycardia (SVT) is an abnormally fast heartbeat that originates above the ventricles in the atria or AV node ... Supraventricular tachycardia, Syncope, Ventricular fibrillation, Ventricular tachycardia, Wolff-Parkinson-White syndrome more ... Supraventricular tachycardia, Ventricular fibrillation, Ventricular tachycardia more ... diagnostic tests and treatments for supraventricular tachycardia and other heart conditions. Read more about heart rhythm ...
Paroxysmal supraventricular tachycardia (PSVT) is a type of supraventricular tachycardia, named for its intermittent episodes ... About 2.3 per 1000 people have paroxysmal supraventricular tachycardia. Problems typically begin in those 12 to 45 years old. ... "Adenosine vs Verapamil (calcium channel blocker) in the acute treatment of supraventricular tachycardias". Archived from the ... "BestBets: Comparing Valsalva manoeuvre with carotid sinus massage in adults with supraventricular tachycardia". Archived from ...
A 41-year-old man was referred for electrophysiological evaluation after recurrent syncope that occurred frequently during vigorous exercise. The patient had a complete, normal cardiological work up, including a resting ECG, an exercise stress test, and an echocardiogram. He reported that just before loss of consciousness, his heart was beating very fast. An electrophysiological study was performed (Figure), and typical atrioventricular … ...
People with supraventricular tachycardia (SVT) often have an extra electrical circuit in their hearts and may occasionally ... People with supraventricular tachycardia (SVT) often have an extra electrical circuit in their hearts and may occasionally ... Supraventricular Tachycardia Treatment at BIDMC. You will likely receive treatment under the following circumstances: ... Supraventricular Tachycardia Symptoms and Diagnosis. The most common symptoms of SVT include: ...
Supraventricular Tachycardia. Signs and Symptoms A heart that beats too fast or too slow can cause:. *Lightheadedness or ... Fast heart rates are called tachycardias.. The heart is made up of four chambers. The upper chambers, called the atriums, ...
What is supraventricular tachycardia?. The term "supraventricular tachycardia" (SOO-prah-ven-TRIK-u-lar tak-eh-KAR-de-ah), or ...
Re-entrant rhythms account for most episodes of supraventricular tachycardia (SVT) in children. ... Atrioventricular node re-entrant tachycardia (AVNRT) is a form of re-entrant rhythm within the region of the atrioventricular ( ... Atrioventricular Node Reentry Supraventricular Tachycardia) and Atrioventricular Node Reentry Supraventricular Tachycardia What ... Atrioventricular Node Reentry Supraventricular Tachycardia * Sections Atrioventricular Node Reentry Supraventricular ...
super ventricular tachycardia also known as s B T refers to an abnormally high heart rate the prefix Supra means above so super ... orange structure I circled right here the AV node is a key player and the hearts electrical conduction system now tachycardia ... another scenario where it wouldnt be unreasonable for your heart rate to go above 100 however in super ventricular tachycardia ...
Paroxysmal supraventricular tachycardia (PSVT) is a type of abnormal heart rhythm, or arrhythmia. It occurs when a short ... Atrial Tachycardia. Atrial tachycardia is responsible for about 5 percent of PSVTs. It occurs when an electrical impulse fires ... Atrioventricular Nodal Re-entrant Tachycardia (AVNRT). Atrioventricular nodal re-entrant tachycardia (AVNRT) is the most common ... Valsalva maneuver: In many patients, the tachycardia episode can be stopped by bearing down or rubbing the carotid artery. ...
But if you have supraventricular tachycardia, or SVT, it means your heart beats faster than normal-usually more than 100 beats ... Use this condition center to learn more about living with supraventricular tachycardia. You can also read about the latest ...
... external resources ICD-10 I47.1 ICD-9 427.89 MeSH D013617 A supraventricular ... A supraventricular tachycardia (SVT) is a tachycardia or rapid rhythm of the heart in which the origin of the electrical signal ... Junctional ectopic tachycardia Diagnosis. Most supraventricular tachycardias have a narrow QRS complex on EKG, but it is ... The term supraventricular tachycardia is often used differently in different settings. Properly, it refers to any tachycardia ...
Paroxysmal supraventricular tachycardia (PSVT) - healthcare utilization and health process from patients perspective Duration ... There is little known about the patient perspective in patients suffering from paroxysmal supraventricular tachycardia (PSVT), ...
SVT = Supraventricular Tachycardia. PAT = Paroxysmal Atrial Tachycardia. VT = Ventricular Tachycardia. PVCs, PACs are premature ... Re: Supra Ventricular Tachycardia I am 20 years old and have been diagnosed with a mild, Paroxysmal atrial tachycardia, where I ... and a supra ventricular tachycardia, to ventricular ectopic beats, and ventricular tachycardia. As my heart relaxed and ... Re: Supra Ventricular Tachycardia I am a 35 year old male that had an ablation for svt 6 years ago. I will be glad to answer ...
Paroxysmal Supraventricular Tachycardia. (PSVT; Supraventricular Tachycardia). Pronounced: Par-ocks-ee-mal Soo-pra-ventricular ... Paroxysmal supraventricular tachycardia (PSVT) is more common in women. It can occur at any age, but usually develops in a ... Paroxysmal supraventricular tachycardia (PSVT) is an abnormally fast heart beat, which begins and ends suddenly. While the ... Treatment for paroxysmal supraventricular tachycardia (PSVT) involves stopping the electrical impulses causing the attacks. ...
  • There are four main types: atrial fibrillation, paroxysmal supraventricular tachycardia (PSVT), atrial flutter, and Wolff-Parkinson-White syndrome. (wikipedia.org)
  • Paroxysmal supraventricular tachycardia (PSVT) is another type of "short-circuit" arrhythmia. (hopkinsmedicine.org)
  • Episodes of faster-than-normal heart rate characterize paroxysmal supraventricular tachycardia (PSVT). (healthline.com)
  • An extra pathway, often present in supraventricular tachycardia, can lead to the abnormally fast heartbeat of PSVT. (healthline.com)
  • Paroxysmal supraventricular tachycardia (PSVT) is a type of supraventricular tachycardia, named for its intermittent episodes of abrupt onset and termination. (wikipedia.org)
  • Paroxysmal supraventricular tachycardia (PSVT) is episodes of rapid heart rate that start in a part of the heart above the ventricles. (medlineplus.gov)
  • For patient education information, see the Heart Health Center , as well as Supraventricular Tachycardia (SVT, PSVT) , Atrial Fibrillation (AFib ) , Atrial Flutter , and Arrhythmias (Heart Rhythm Disorders) . (medscape.com)
  • SVT is also called atrial tachycardia, paroxysmal supraventricular tachycardia (PSVT), or paroxysmal atrial tachycardia (PAT). (rexhealth.com)
  • AVNRT is the most common cause of paroxysmal supraventricular tachycardia (PSVT). (medscape.com)
  • Paroxysmal supraventricular tachycardia (PSVT) is a type of abnormal heart rhythm, or arrhythmia . (hopkinsmedicine.org)
  • Atrioventricular nodal re-entrant tachycardia (AVNRT) is the most common cause of PSVT. (hopkinsmedicine.org)
  • Often, however, in a clinical setting, it is used loosely as a synonym for paroxysmal supraventricular tachycardia (PSVT), which refers to those SVTs that have a sudden, almost immediate onset. (bionity.com)
  • Because sinus tachycardias (and some other SVTs) have a gradual (i.e. non-immediate) onset, they are excluded from the PSVT category. (bionity.com)
  • There is little known about the patient perspective in patients suffering from paroxysmal supraventricular tachycardia (PSVT), a condition with a sudden onset of fast heart rhythm. (his.se)
  • Paroxysmal supraventricular tachycardia (PSVT) is an abnormally fast heart beat, which begins and ends suddenly. (epnet.com)
  • People with PSVT have attacks of tachycardia that can last anywhere from a few minutes to several hours. (epnet.com)
  • Paroxysmal supraventricular tachycardia (PSVT) is more common in women. (epnet.com)
  • A diagnosis of paroxysmal supraventricular tachycardia (PSVT) usually begins when a person notices uncomfortable attacks of rapid heart beating. (epnet.com)
  • Treatment for paroxysmal supraventricular tachycardia (PSVT) involves stopping the electrical impulses causing the attacks. (epnet.com)
  • SVT's are considered as a general term for any tachycardias that originate above the atrioventricular node (AV node) while other physicians prefer to simply name each type of tachycardia and consider any SVT that occurs off and on as either a SVT or a paroxysmal SVT ( PSVT ). (emedicinehealth.com)
  • What is Supraventricular Tachycardia (SVT, PSVT Definitions)? (emedicinehealth.com)
  • Supraventricular tachycardia is also called paroxysmal supraventricular tachycardia and abbreviated either SVT or PSVT. (emedicinehealth.com)
  • When tachycardia occurs, it is usually referred to as paroxysmal supraventricular tachycardia (often abbreviated PSVT). (emedicinehealth.com)
  • Paroxysmal supraventricular tachycardia (PSVT), a common dysrhythmia seen in the emergency department (ED), is usually managed without difficulty and with a favorable prognosis. (nih.gov)
  • The most common types of SVT include paroxysmal atrial tachycardia (PAT) or paroxysmal supraventricular tachycardia (PSVT) and sinus tachycardia. (hoag.org)
  • Although the tachycardia converted into normal sinus rhythm, frequent recurrence of PSVT was noted. (biomedsearch.com)
  • The Global Paroxysmal Supraventricular Tachycardia (PSVT) Market is expected to register a CAGR of approximately 6.50% during the forecast period, 2017-2023. (medgadget.com)
  • Paroxysmal supraventricular tachycardia, also known as PSVT, is a condition wherein the patient shows an irregularity in heart beating. (medgadget.com)
  • The prevalence of Paroxysmal Supraventricular Tachycardia (PSVT) is unknown but is projected to be around several cases per thousand persons. (medgadget.com)
  • The Global Paroxysmal Supraventricular Tachycardia (PSVT) Market consists of regions, namely, the Americas, Europe, Asia Pacific, and the Middle East and Africa. (medgadget.com)
  • The Americas region dominates the Global Paroxysmal Supraventricular Tachycardia (PSVT) Market. (medgadget.com)
  • The European market is expected to hold the second largest market share for the Global Paroxysmal Supraventricular Tachycardia (PSVT) Market over the forecast period. (medgadget.com)
  • Norway and Sweden are among the key countries within the European Paroxysmal Supraventricular Tachycardia (PSVT) Market. (medgadget.com)
  • The increasing demand for diagnostic outpatient surgeries has fueled the growth of the Paroxysmal Supraventricular Tachycardia (PSVT) Market in Asia Pacific. (medgadget.com)
  • Background: The aim of this case report is to underline the possible etiological link between paroxysmal supraventricular tachycardia (PSVT) and hypothyroidism, although supraventricular arrhythmias are ordinary features of hyperthyroidism. (endocrine-abstracts.org)
  • The electrocardiogram revealed supraventricular tachycardia with 200 beats/minute (PSVT). (endocrine-abstracts.org)
  • Paroxysmal supraventricular tachycardia (PSVT) is an occasional rapid heart rate. (drugster.info)
  • DelveInsight's "Paroxysmal Supraventricular Tachycardia (PSVT) Market Insights, Epidemiology, and Market Forecast 2030" report delivers an in-depth understanding of the Paroxysmal Supraventricular Tachycardia (PSVT), historical and forecasted epidemiology as well as the Paroxysmal Supraventricular Tachycardia (PSVT) market trends in the United States, EU5 (Germany, Spain, Italy, France, and United Kingdom) and Japan. (abnewswire.com)
  • The Paroxysmal Supraventricular Tachycardia (PSVT) market report also covers emerging drugs, current treatment practices, Paroxysmal Supraventricular Tachycardia (PSVT) market share of the individual therapies, current and forecasted Paroxysmal Supraventricular Tachycardia (PSVT) Market Size from 2017 to 2030 segmented by seven major markets. (abnewswire.com)
  • The report provides a detailed current Paroxysmal Supraventricular Tachycardia (PSVT) treatment practice/algorithm , market drivers, market barriers and unmet medical needs to curate best of the opportunities and assesses the underlying potential of the market. (abnewswire.com)
  • Paroxysmal Supraventricular Tachycardia (PSVT) market report provides an in-depth analysis of Paroxysmal Supraventricular Tachycardia (PSVT) Market Size, Share, Trend, Epidemiology and Market Forecast till 2030, in 7 major market i.e. (abnewswire.com)
  • The Paroxysmal Supraventricular Tachycardia (PSVT) market report will help in developing business strategies by understanding the Paroxysmal Supraventricular Tachycardia (PSVT) Market trends & developments, key players and future market competition that will shape and drive the Paroxysmal Supraventricular Tachycardia (PSVT) market in the upcoming years. (abnewswire.com)
  • The Paroxysmal Supraventricular Tachycardia (PSVT) market report covers Paroxysmal Supraventricular Tachycardia (PSVT) current treatment practices, emerging drugs, market share of the individual therapies in 7 MM. (abnewswire.com)
  • The report provides a detailed assessment of the Paroxysmal Supraventricular Tachycardia (PSVT) market in terms of market drivers & barriers, Unmet Needs, market opportunities, patient population, comparative analysis of pipeline products with detailed clinical profiles, and other factors. (abnewswire.com)
  • The Paroxysmal Supraventricular Tachycardia (PSVT) market outlook section of the report helps to build the detailed comprehension of the historic, current and forecasted Paroxysmal Supraventricular Tachycardia (PSVT) market trends by analyzing the impact of current therapies on the market, unmet needs, drivers and barriers and demand for better technology. (abnewswire.com)
  • The report gives a thorough detail of Paroxysmal Supraventricular Tachycardia (PSVT) market trend of each marketed drug and late-stage pipeline therapy by evaluating their impact based on the annual cost of therapy, inclusion and exclusion criteria, mechanism of action, increasing patient pool, covered patient segment, expected launch year, competition with other therapies, and view of the key opinion leaders. (abnewswire.com)
  • Precisely what is Supraventricular Tachycardia (SVT, PSVT Explanations)? (global-medicalsearch.com)
  • Supraventricular tachycardia can be named paroxysmal supraventricular tachycardia as well as truncated sometimes SVT and PSVT. (global-medicalsearch.com)
  • Listed here are medical and health meanings involving stipulations in which can be found in a Supraventricular Tachycardia (SVT, PSVT Indicators, Leads to, in addition to Cures) article . (global-medicalsearch.com)
  • It may result either from atrio-ventricular nodal re-entrant tachycardia (AVNRT) or from an accessory pathway, which may occur as part of the Wolff-Parkinson-White (WPW) syndrome. (hopkinsmedicine.org)
  • [ 6 , 7 ] The AVNRT tachycardias are described as typical when the posterior input from the crista terminalis functions as the slow (slow-fast) pathway and the anterior or interatrial septum acts as the fast pathway. (medscape.com)
  • An example of AVNRT tachycardia is shown in Figure 1. (medscape.com)
  • One type of SVT (AV nodal reentrant tachycardia or AVNRT) occurs because the electrical impulse travels in a circle using extra fibers in and around the AV node ( Figure 2 ). (ahajournals.org)
  • Atrioventricular node re-entrant tachycardia (AVNRT) is a form of re-entrant rhythm within the region of the atrioventricular (AV) node. (medscape.com)
  • These success rates cover the more common SVT types called AVNRT (atrioventricular nodal reentrant tachycardia) and AVRT (atrioventricular reciprocating tachycardia). (healthwise.net)
  • AV node reentrant tachycardia (AVNRT ) - With this type of paroxysmal supraventricular tachycardia, an electrical short circuit forms around the AV node (the electrical bridge between the atrium (top chambers of your heart) and the ventricle (bottom chambers of your heart). (osu.edu)
  • Supraventricular tachycardia (SVT) generally refers to atrioventricular nodal re-entry tachycardia (AVNRT), atrioventricular re-entry tachycardia (AVRT) and atrial tachycardia [ 1 ] . (patient.info)
  • Atrioventricular nodal re-entry tachycardia (AVNRT) .This is the most common type of SVT. (patient.info)
  • The presence of this second connection between the atria and ventricles is a setup for developing a "short-circuit" arrhythmia: electrical impulses may start traveling in a circular pattern and cause the heart to beat too rapidly (AVRT: atrio-ventricular reciprocating tachycardia). (hopkinsmedicine.org)
  • I have been diagnosed with Supraventricular Tachycardia along with a sinus arrhythmia. (medhelp.org)
  • Zimetbaum P. Cardiac arrhythmia with supraventricular origin. (drugs.com)
  • The presence of this extra path can encourage a "short circuit" arrhythmia known as an atrioventricular reciprocating tachycardia (AVRT). (hopkinsmedicine.org)
  • After birth three subsequent ECGs until day 3 showed no evidence of atrial extrasystoles, confirming the well-known frequent regression of this kind of fetal benign arrhythmia, but on day 11 recurrence of supraventricular trigeminy and development of episodes of paroxystic supraventricular tachycardia were observed. (hindawi.com)
  • Supraventricular tachycardia (SVT) is a type of abnormal heartbeat (arrhythmia) in which your heart beats too fast. (bupa.co.uk)
  • Supraventricular tachycardia (SVT) is an arrhythmia or rapid heartbeat. (chop.edu)
  • Supraventricular tachycardia is by far the most common heart arrhythmia seen in infants and children. (chop.edu)
  • While babies with supraventricular tachycardia commonly outgrow the arrhythmia, older children usually do not. (chop.edu)
  • Adenosine in doses up to 20 mg is a rapid, safe and effective means in terminating paroxysmal supraventricular tachycardias in patients whose arrhythmia did not responde to vagal manoeuvres. (bestbets.org)
  • A paroxysmal supraventricular tachycardia is a fast heart rhythm (arrhythmia) that occurs in the upper chambers of the heart (atria). (osu.edu)
  • There may be two electrical pathways in the atrioventricular node (an abnormal heart rhythm [arrhythmia] called atrioventricular nodal reentrant supraventricular tachycardia). (merckmanuals.com)
  • There may be an abnormal electrical pathway between the atria and the ventricles (an arrhythmia called atrioventricular reciprocating supraventricular tachycardia). (merckmanuals.com)
  • Much less commonly, the atria may generate abnormal rapid or circling impulses (an arrhythmia called true paroxysmal atrial tachycardia). (merckmanuals.com)
  • Supraventricular tachycardia (SVT) is the most common arrhythmia in infants. (springer.com)
  • Paroxysmal supraventricular tachycardia is an arrhythmia characterized by electrical activity with supraventricular origin (atrial or junctional), regular rhythm and frequency between 120 and 250 beats / minute. (doctortipster.com)
  • Supraventricular tachycardia (SVT) is a cardiac arrhythmia characterized by very rapid or erratic beating. (practicalclinicalskills.com)
  • citation needed] Sinoatrial node reentrant tachycardia (SANRT) is caused by a reentry circuit localised to the SA node, resulting in a P-wave of normal shape and size (morphology) that falls before a regular, narrow QRS complex. (wikipedia.org)
  • ABSTRACT: Adenosine by rapid intravenous bolus is frequently utilized in clinical practice as both a pharmacologic treatment for supraventricular (reentrant) tachycardia and in provocative testing for the diagnosis of Wolff-Parkinson-White (WPW) syndrome. (scirp.org)
  • The subtypes atrial tachycardia and Atrioventricular Reentrant Tachycardia (AVRT) account for approximately 10% and 30% of the SVT cases, respectively. (medgadget.com)
  • two-thirds of cases), atrioventricular reciprocating (or reentrant) tachycardia (AVRT), focal atrial tachycardia (FAT), multifocal atrial tachycardia ( MAT ), and junctional tachycardia . (amboss.com)
  • Atrioventricular reciprocating tachycardia (AVRT), including Wolff-Parkinson-White syndrome. (rexhealth.com)
  • CINAHL using the OVID interface-1982 to June Week 3 2005 [(exp Supraventricular Tachycardia) OR (exp Tachycardia, Atrioventricular Nodal Reentry) OR (supraventricular tachycardia.mp) OR (narrow complex tachycardia OR narrow-complex tachycardia OR junctional tachycardia.mp. (bestbets.org)
  • or (narrow-complex tachycardia.mp. (bestbets.org)
  • Disorders of impulse initiation (automatic tachycardias) causing a narrow complex tachycardia. (patient.info)
  • A narrow complex tachycardia with an accessory conduction pathway, often termed "supraventricular tachycardia with pre-excitation" (e.g. (wikipedia.org)
  • In the clinical setting, the distinction between narrow and wide complex tachycardia (supraventricular vs. ventricular) is fundamental since they are treated differently. (wikipedia.org)
  • In the less common situation in which a wide-complex tachycardia may actually be supraventricular, a number of algorithms have been devised to assist in distinguishing between them. (wikipedia.org)
  • In 1995, Kipel and colleagues reported a case of malignant wide complex tachycardia in a 10 year old boy who received adenosine two days after he had undergone a Fontan procedure. (medscape.com)
  • Aberrant conduction during SVT results in a wide-complex tachycardia. (medscape.com)
  • Most supraventricular tachycardias have a narrow QRS complex on EKG , but it is important to realise that supraventricular tachycardia with aberrant conduction (SVTAC) can produce a wide-complex tachycardia that may mimic ventricular tachycardia (VT). (bionity.com)
  • In the clinical setting, it is important to determine whether a wide-complex tachycardia is an SVT or a ventricular tachycardia, since they are treated differently. (bionity.com)
  • A number of different algorithms have been devised to determine whether a wide complex tachycardia is supraventricular or ventricular in origin. (bionity.com)
  • What Are the Signs & Symptoms of Supraventricular Tachycardia (SVT)? (kidshealth.org)
  • Supraventricular arrhythmias. (medlineplus.gov)
  • People with supraventricular tachycardia (SVT) often have an extra electrical circuit in their hearts and may occasionally experience very fast heart beats (arrhythmias) that are unrelated to exercise, fever or stress. (bidmc.org)
  • See related article on supraventricular arrhythmias . (aafp.org)
  • This includes arrhythmias that originate from the sinus node, the atrial tissue (atrial flutter and atrial tachycardias), and the AV node. (clinicaladvisor.com)
  • Successful treatment for various arrhythmias in an older patient treated with pilsicainide for paroxysmal supraventricular tachycardia. (annals.org)
  • Therefore, these arrhythmias are also often called narrow complex tachycardias. (mhmedical.com)
  • European Heart Rhythm Association (EHRA) consensus document on the management of supraventricular arrhythmias, endorsed by Heart Rhythm Society (HRS), Asia-Pacific Heart Rhythm Society (APHRS), and Sociedad Latinoamericana de Estimulación Cardiaca y Electrofisiologia (SOLAECE). (semanticscholar.org)
  • Atrial fibrillation affects about 25 per 1000 people, paroxysmal supraventricular tachycardia 2.3 per 1000, Wolff-Parkinson-White syndrome 2 per 1000, and atrial flutter 0.8 per 1000. (wikipedia.org)
  • Other types of supraventricular tachycardia include atrial fibrillation and atrial flutter. (osu.edu)
  • Atrial fibrillation and atrial flutter are the most common subtypes of supraventricular tachycardia, which is relatively common in women. (myamericannurse.com)
  • exceptions include atrial fibrillation (AF) and multifocal atrial tachycardia (MAT). (medscape.com)
  • Other rare forms of paroxysmal supraventricular tachycardia (10-30%) occur with increasing ectopic automatism or with triggered activity: ectopic atrial tachycardia, multifocal atrial tachycardia, junctional ectopic tachycardia. (doctortipster.com)
  • citation needed] Sinus tachycardia is physiologic or "appropriate" when a reasonable stimulus, such as the catecholamine surge associated with fright, stress, or physical activity, provokes the tachycardia. (wikipedia.org)
  • Sinus tachycardia is considered by most sources to be an SVT. (wikipedia.org)
  • It cannot be distinguished electrocardiographically from sinus tachycardia unless the sudden onset is observed (or recorded on a continuous monitoring device). (wikipedia.org)
  • Sinus tachycardia is a normal increase in heart rate in response to activity (running or playing), fear or excitement. (seattlechildrens.org)
  • Sinus tachycardia is the most common regular SVT. (medscape.com)
  • This definition includes sinus tachycardia . (bionity.com)
  • Sinus tachycardia is considered "appropriate" when a reasonable stimulus, such as the catecholamine surge associated with fright, stress, or physical activity, provokes the tachycardia. (bionity.com)
  • It is therefore impossible to distinguish on the EKG from ordinary sinus tachycardia. (bionity.com)
  • Upon detection of a rapid heart rate, an implanted medical device may determine whether the rhythm exhibits insufficient evidence of sinus tachycardia, whether the rhythm exhibits 1:1 conduction, and whether an electrical signal corresponding to the rhythm exhibits a normal morphology. (google.com)
  • [5] The upper limit of normal rate for sinus tachycardia is thought to be 220 bpm minus age. (wikipedia.org)
  • Subtypes of SVT can usually be distinguished by their electrocardiogram (ECG) characteristics Most have a narrow QRS complex, although, occasionally, electrical conduction abnormalities may produce a wide QRS complex that may mimic ventricular tachycardia (VT). (wikipedia.org)
  • Electrocardiogram showing atrioventricular node re-entry tachycardia. (medscape.com)
  • His electrocardiogram (ECG) demonstrated supraventricular tachycardia with a ventricular rate of 254 bpm. (nih.gov)
  • An electrocardiogram (EKG/ECG) obtained at the time of the heart rhythm problem will confirm the diagnosis of paroxysmal supraventricular tachycardia. (osu.edu)
  • Supraventricular tachycardia is diagnosed with an electrocardiogram (EKG). (healthguideinfo.com)
  • An electrocardiogram (ECG) is used to classify the type of tachycardia. (wikipedia.org)
  • Maternal paroxysmal supraventricular tachycardia treated with adenosine. (bmj.com)
  • Adenosine is the initial drug in the acute management of paroxysmal supraventricular tachycardia after the failure of vagal manoeuvres. (bestbets.org)
  • 1999) Electrophysiologic Effects of Adenosine in Patients with Supraventricular Tachycardia. (scirp.org)
  • Is reentry tachycardia or ectopic atrial tachycardia worse? (healthtap.com)
  • Most case of paroxysmal supraventricular tachycardia (70-90%) are caused by reentry mechanisms, the substrate of these mechanisms is the existence of functional differences in the driving of cardiac structures or the presence of an accessory bundle. (doctortipster.com)
  • Paroxysmal supraventricular tachycardia with atrioventricular node reentry , making a circular motion. (doctortipster.com)
  • Supraventricular tachycardia: Atrioventricular nodal reentry and Wolf-Parkinson-White syndrome. (uncmedicalcenter.org)
  • Atrial tachycardias (FAT and MAT ) and junctional tachycardias are usually the result of abnormal or ectopic pacemaker activity and do not involve reentry. (amboss.com)
  • Initial experience of radiofrequency catheter ablation of supraventricular tachycardia in paediatric patients. (nus.edu.sg)
  • citation needed] Ectopic (unifocal) atrial tachycardia arises from an independent focus within the atria, distinguished by a consistent P-wave of abnormal shape and/or size that falls before a narrow, regular QRS complex. (wikipedia.org)
  • The atria are above the ventricles, hence the term supraventricular. (ahajournals.org)
  • A supraventricular tachycardia ( SVT ) is a tachycardia or rapid rhythm of the heart in which the origin of the electrical signal is either the atria or the AV node. (bionity.com)
  • This is in contrast to the deadlier ventricular tachycardias , which are rapid rhythms that originate from the ventricles of the heart, that is, below the atria or AV node. (bionity.com)
  • Unifocal) Atrial tachycardia is tachycardia resultant from one ectopic foci within the atria, distinguished by a consistent p-wave of abnormal morphology that fall before a narrow, regular QRS complex. (bionity.com)
  • Still other people have an irritable group of cells in the atria that drives the tachycardia. (epnet.com)
  • In supraventricular tachycardia, the heart rate is sped up by an abnormal electrical impulse starting in the atria. (emedicinehealth.com)
  • Those that involve the upper chambers (the atria) are termed supraventricular tachycardia (SVT). (kidshealth.org.nz)
  • Supraventricular tachycardias (SVTs) are rapid rhythm disturbances originating from the atria or the atrioventricular (AV) node. (mhmedical.com)
  • Narrow complex tachycardias tend to originate in the atria, while wide complex tachycardias tend to originate in the ventricles. (wikipedia.org)
  • Supraventricular' means above the ventricles (usually the atria). (msdmanuals.com)
  • Supraventricular tachycardias (SVTs) are a group of tachyarrhythmias arising from abnormalities in pacemaker activity and/or conduction involving myocytes of the atria and/or AV node . (amboss.com)
  • Ectopic atrial tachycardia means that the pacemaker region (the part that is setting the heart rate) is in another location, & is acting erratically. (healthtap.com)
  • Usefulness of intravenous propafenone for control of postoperative junctional ectopic tachycardia. (springer.com)
  • Supraventricular tachycardia (SVT) is an abnormally fast heart rhythm arising from improper electrical activity in the upper part of the heart. (wikipedia.org)
  • Pressing down gently on the top of closed eyes may also bring heartbeat back to normal rhythm for some people with atrial or supraventricular tachycardia (SVT). (wikipedia.org)
  • Supraventricular tachycardia (pronounced sue-prah-ven-TRIK-yu-lar tack-ih-CAR-dee-ah) is a problem with the heart's electrical activity that causes an irregular heart rhythm. (seattlechildrens.org)
  • Supraventricular tachycardia then is a rapid rhythm of the heart that begins in the upper chambers. (ahajournals.org)
  • Mayo Clinic doctors and surgeons who are trained in heart rhythm disorders study genetics, causes, diagnostic tests and treatments for supraventricular tachycardia and other heart conditions. (mayoclinic.org)
  • Supraventricular tachycardia often occurs in episodes with stretches of normal rhythm in between. (emedicinehealth.com)
  • determining, in response to the first rate being greater than the first predetermined threshold and the second rate being greater than the second threshold, whether the sensed cardiac rhythm indicates a supraventricular tachycardia (SVT) with 1:1 atrial to ventricular conduction (1:1 AV conduction). (google.com)
  • Supraventricular Tachycardia (also referred to as SVT) describes a number of rapid heart rhythm disorders originating in the upper chambers of the heart. (hoag.org)
  • An abnormally fast heart rhythm (tachycardia) can arise from the upper or lower chambers of the heart. (kidshealth.org.nz)
  • An abnormally fast heart rhythm (tachycardia) can arise from the upper or lower chambers of the heart, or be a 'circuit' made up of the upper and lower chambers. (kidshealth.org.nz)
  • Supraventricular tachycardia is a fast rhythm which starts in the upper portion of the heart . (healthtap.com)
  • of all the the manoeuvres examined, valsalva was the most frequently and consistently effective at terminating re-entry tachycardias and the one to produce the greatest change in cycle length in cardiac rhythm. (bestbets.org)
  • Supraventricular tachycardia (SVT) is a group of commonly occurring heart rhythm disorders including re-entrant tachycardia, with an estimated incidence of 35 episodes per 100,000 persons per year. (hospitalhealthcare.com)
  • Rhythm, tachycardia, supraventricular (SVT). (springer.com)
  • 2015 ACC/AHA/ HRS guideline for the management of adult patients with supraventricular tachycardia: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. (baptistjax.com)
  • Rhythm is supraventricular in origin. (mhmedical.com)
  • Supraventricular tachycardia (SVT) causes an abnormal heart rhythm . (patient.info)
  • The following table summarizes the key features of an supraventricular tachycardia EKG rhythm strip. (practicalclinicalskills.com)
  • In ventricular tachycardia , the abnormal rhythm is caused by a problem in your ventricles. (msdmanuals.com)
  • However, when people talk about it, they most commonly mean supra ventricular tachycardia . (healthtap.com)
  • If your heart is beating extremely fast (as in supra- ventricular tachycardia ) it has very little time to fill with blood between beats so very little blood will be pumped with every beat. (healthtap.com)
  • Radiofrequency ablation is necessary in tachycardias lasting more than 30 seconds. (medscape.com)
  • Radiofrequency ablation is an established but expensive treatment option for many forms of supraventricular tachycardia. (annals.org)
  • To compare the cost-effectiveness of radiofrequency ablation with that of medical management of supraventricular tachycardia. (annals.org)
  • Among patients who have monthly episodes of supraventricular tachycardia, radiofrequency ablation was the most effective and least expensive therapy and therefore dominated the drug therapy options. (annals.org)
  • Catheter ablation - A technique to permanently eliminate the source of paroxysmal supraventricular tachycardia by using radiofrequency energy. (osu.edu)
  • Long-term outcomes on quality-of-life and health care costs in patients with supraventricular tachycardia (radiofrequency catheter ablation versus medical therapy). (semanticscholar.org)
  • The effect of radiofrequency ablation treatment on quality of life and anxiety in patients with supraventricular tachycardia. (semanticscholar.org)
  • The aim of this study was to evaluate the indications, results and complicationsof radiofrequency ablation (RFA) and transcatheter cryoablation (TCA) in neonates andinfants with incessant drug-resistant supraventricular tachycardia (SVT). (viamedica.pl)
  • Supraventricular tachycardia (SVT) causes an abnormally fast heart rate. (patient.info)
  • The most common congenital accessory pathway ( bundle of Kent ) is seen in Wolff-Parkinson-White ( WPW ) syndrome and can cause ventricular preexcitation , in which supraventricular impulses bypass the AV node and are abnormally conducted to the ventricles, leading to a characteristic preexcitation pattern on ECG and a specific subset of preexcited tachyarrhythmias . (amboss.com)
  • Tachycardia is a broad term used to describe fast heart rates and rhythms. (seattlechildrens.org)
  • Re-entrant rhythms account for most episodes of supraventricular tachycardia (SVT) in children. (medscape.com)
  • Supraventricular tachycardia does not include those tachycardia rhythms that originate from the ventricles (ventricular tachycardias) such as ventricular tachycardia or ventricular fibrillation. (emedicinehealth.com)
  • Supraventricular Tachycardia: Should I Have Catheter Ablation? (healthwise.net)
  • Catheter ablation-a procedure that treats the heart rate problem called supraventricular tachycardia (SVT)-might be done if you have symptoms that bother you a lot and you do not want to take medicine, or medicine has not worked. (healthwise.net)
  • Catheter ablation works well to stop supraventricular tachycardia (SVT) and the symptoms it causes. (healthwise.net)
  • If you have been to the emergency room for paroxysmal supraventricular tachycardia, have frequent episodes or severe symptoms, your doctor will likely recommend treatment such as medications or catheter ablation. (osu.edu)
  • As a consequence, catheter ablation of sustained monomorphic VT is an important option to control recurrent ventricular tachycardias (VTs) but must be considered adjunctive to ICD placement, especially when structural heart disease is present. (clinicaladvisor.com)
  • The term tachycardia refers to a rapid heartbeat of over 100 beats per minute. (ahajournals.org)
  • supraventricular tachycardia (SVT) , a cardiac condition characterized by a racing heartbeat caused by electrical misfiring in the heart. (chop.edu)
  • About eight years ago I started having "superventricular tachycardia" espisodes, or a fast heartbeat, which occurs about every two months and lasts for up to eight hours at a time. (progesteronetherapy.com)
  • An ECG, echocardiogram and a physical exam are usually normal if they are performed after the tachycardia (fast heartbeat) stops, so it is important to obtain an ECG while your child is having the symptoms. (chop.edu)
  • Symptoms of paroxysmal supraventricular tachycardia include the sensation of a racing heartbeat that starts and stops abruptly. (osu.edu)
  • Paroxysmal supraventricular tachycardia may be triggered by a premature heartbeat that repeatedly activates the heart at a fast rate. (merckmanuals.com)
  • Supraventricular tachycardia (SVT) causes occasional episodes of a fast heartbeat, which is a heart rate greater than 100 beats per minute. (healthguideinfo.com)
  • During an episode of supraventricular tachycardia (SVT), the heartbeat is not controlled by the sinoatrial (SA) node (the normal timer of the heart). (patient.info)
  • Supraventricular tachycardia is usually a super fast beats per minute (tachycardia, or possibly a heartbeat higher than one hundred M.M.) that is brought on by electrical signals in which initiate previously the actual heart's ventricles. (global-medicalsearch.com)
  • The invention is directed to method and process for discriminating supraventricular tachycardia (SVT) with 1:1 atrial to ventricular conduction (AV conduction). (google.com)
  • A description is given of a patient with an atrioventricular nodal tachycardia with left aberrant conduction changing into nonaberrant conduction after a ventricular premature beat. (springer.com)
  • Abnormalities of impulse conduction (re-entrant tachycardias). (patient.info)
  • Two of the concealed pathways had slow conduction time and decremental properties (the permanent form of junctional reciprocating tachycardia). (viamedica.pl)
  • The valsalva manoeuvre should be applied during spontaneous supraventricular tachycardia before other means of termination are attempted. (bestbets.org)
  • For acute termination of supraventricular tachycardia (SVT), vagal maneuvers, including the standard Valsalva maneuver (sVM), modified Valsalva (mVM) maneuver, and carotid sinus massage (CSM), are first-line interventions. (unboundmedicine.com)
  • Sino-carotidean massage and Valsalva maneuver (expiration with closed glottis) may interrupt the paroxysmal supraventricular tachycardia access in 80% of cases. (doctortipster.com)
  • If your paroxysmal supraventricular tachycardia episodes are short, infrequent and occur with minimal symptoms, you may not need treatment. (osu.edu)
  • The first step in the diagnosis of paroxysmal supraventricular tachycardia is a medical history and physical examination by your electrical heart doctor (called an electrophysiologist). (osu.edu)
  • A normal heart beats between 60 to 100 beats per minute, but the heart rate of a person suffering from paroxysmal supraventricular tachycardia during an episode may exceed 150-200 beats per minute. (medgadget.com)
  • But, a recent study conducted by Milestone Pharmaceuticals suggested that about 1.7 million patients in the U.S. were suffering from paroxysmal supraventricular tachycardia since the last five years. (medgadget.com)
  • Supraventricular tachycardia (SVT) means that from time to time your heart beats very fast for a reason other than exercise, high fever, or stress. (rexhealth.com)
  • But if you have supraventricular tachycardia, or SVT, it means your heart beats faster than normal-usually more than 100 beats per minute. (cardiosmart.org)
  • Supraventricular tachycardia is a rapid heart rate (tachycardia, or a heart rate above 100 beats per minute) that is caused by electrical impulses that originate above the heart's ventricles. (emedicinehealth.com)
  • A heart rate faster than 100 beats per minute is considered tachycardia. (emedicinehealth.com)
  • Supraventricular tachycardia (SVT) is a term for when your heart beats faster than normal because of a problem that happens above your ventricles. (bupa.co.uk)
  • Paroxysmal supraventricular tachycardia is a regular, fast (160 to 220 beats per minute) heart rate that begins and ends suddenly and originates in heart tissue other than that in the ventricles. (merckmanuals.com)
  • [1] In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. (wikipedia.org)
  • Tachycardia' means fast heart beats. (msdmanuals.com)
  • Paroxysmal supraventricular tachycardia (paroxysmal SVT) is an episodic condition with an abrupt onset and termination. (medscape.com)
  • When tachycardia does not stop on its own or with vagal maneuvers, we may recommend a daily medication to prevent SVT from occurring. (chop.edu)
  • TY - JOUR T1 - Initial and Sustained Response Effects of 3 Vagal Maneuvers in Supraventricular Tachycardia: A Randomized, Clinical Trial. (unboundmedicine.com)
  • This handout was adapted with permission from Colucci RA, Silver MJ, Shubrook J. Supraventricular tachycardia [patient handout]. (aafp.org)
  • The emergency management of a patient with any SVT, and demonstrating hemodynamic compromise, should follow standard Advanced Cardiac Life Support protocols (see ACLS tachycardia algorithm). (clinicaladvisor.com)
  • The patient is diagnosed with atriventricular nodal re-entry tachycardia. (bestbets.org)
  • Many times, the first diagnosis of a paroxysmal supraventricular tachycardia is when a patient seeks urgent help to treat an episode of paroxysmal supraventricular tachycardia. (osu.edu)
  • If the patient is experiencing a supraventricular episode during the EKG, a clear diagnosis can be made. (healthguideinfo.com)
  • The substrate for atrioventricular tachycardia is not fully understood, but cell-to-cell interactions may play a role. (medscape.com)
  • The general protocol for an episode would be to inject Adenisone into the vein to stop an episode of supraventricular tachycardia. (healthguideinfo.com)
  • If you experience an episode of supraventricular tachycardia, always be sure to inform any medical personnel if you have a history of asthma. (healthguideinfo.com)
  • Treatment of supraventricular tachycardia in infants: analysis of a large multicenter database. (springer.com)
  • Management of supraventricular tachycardia in infants. (springer.com)
  • INTRODUCTION: The management of supraventricular tachycardia (SVT) in paediatric patients until recently has frequently been pharmacologic therapy, but this approach suffers from the drawbacks of treatment failure, development of drug intolerance and/or side-effects. (nus.edu.sg)
  • Financial audit of antitachycardia pacing for the control of recurrent supraventricular tachycardia. (bmj.com)
  • 20 patients with a history of documented, recurrent, sustained paroxysmal junctional tachycardia referred for electrophysiologic study. (bestbets.org)
  • At 16 days of age, the recurrent supraventricular tachycardia was refractory to vagal maneuver and drug therapy. (biomedsearch.com)
  • Epidural anesthesia for cesarean section in a primigravida woman with Ebstein's anomaly with recurrent supraventricular tachycardia. (biomedsearch.com)
  • We report on the anesthetic management of a 24-year-old primigravida woman with Ebstein's anomaly with recurrent supraventricular tachycardia for emergency cesarean section. (biomedsearch.com)
  • An electrocardiographic finding of episodic supraventricular tachycardia with abrupt onset and termination. (fpnotebook.com)
  • However, tuberous sclerosis complex with fetal supraventricular tachycardia is rarely reported. (biomedsearch.com)
  • Fetal supraventricular tachycardia (SVT) can be successfully treated transplacentally, but in cases where fetal hydrops develops there is considerable morbidity and mortality. (eur.nl)
  • A retrospective analysis took place of 51 singleton pregnancies which were referred to the division of prenatal diagnosis because of fetal tachycardia between 1982 and 1993. (eur.nl)
  • Supraventricular tachycardia is the most common clinically significant fetal tachycardia. (gerboni.net)
  • We describe a case of fetal supraventricular tachycardia diagnosed at 24 weeks of gestation. (gerboni.net)
  • Clinical manifestations are similar in all forms of paroxysmal supraventricular tachycardia: accesses starts suddenly with the feeling of strike in the chest, palpitations rapid and regular, anxiety, dyspnea, episodes of angina pectoris . (doctortipster.com)
  • Faintness or syncope may be present at the beginning or at the end of paroxysmal supraventricular tachycardia crisis. (doctortipster.com)
  • SVTs have similar clinical features (typically paroxysms of tachycardia with dizziness , dyspnea , chest pain , or syncope ) that may be self-limiting or progress to hemodynamic instability and sudden cardiac death . (amboss.com)