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).
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.
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 valve consisting of three cusps situated between the right atrium and right ventricle of the heart.
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.
An antiarrhythmia agent that is particularly effective in ventricular arrhythmias. It also has weak beta-blocking activity.
Inflammation of the PERICARDIUM from various origins, such as infection, neoplasm, autoimmune process, injuries, or drug-induced. Pericarditis usually leads to PERICARDIAL EFFUSION, or CONSTRICTIVE PERICARDITIS.
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.
The chambers of the heart, to which the BLOOD returns from the circulation.
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.
Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.
A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.
An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)
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.
Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.
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 hemodynamic and electrophysiological action of the RIGHT ATRIUM.
A generic expression for any tachycardia that originates above the BUNDLE OF HIS.
The venous trunk which receives blood from the lower extremities and from the pelvic and abdominal organs.
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 potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial ARRHYTHMIAS and TACHYCARDIAS.
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.
The hemodynamic and electrophysiological action of the HEART ATRIA.
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.
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.
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.
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.
Abnormally rapid heartbeats with sudden onset and cessation.
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.
The use of freezing as a special surgical technique to destroy or excise tissue.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
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 return of a sign, symptom, or disease after a remission.
A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.
Production of an image when x-rays strike a fluorescent screen.
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.
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.
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.
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.
Catheters inserted into various locations within the heart for diagnostic or therapeutic purposes.
Antimuscarinic quaternary ammonium derivative of scopolamine used to treat cramps in gastrointestinal, urinary, uterine, and biliary tracts, and to facilitate radiologic visualization of the gastrointestinal tract.
The hemodynamic and electrophysiological action of the LEFT ATRIUM.
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.
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.
Pathophysiological conditions of the FETUS in the UTERUS. Some fetal diseases may be treated with FETAL THERAPIES.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
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.
The inferior and superior venae cavae.
A rapid-onset, short-acting cholinesterase inhibitor used in cardiac arrhythmias and in the diagnosis of myasthenia gravis. It has also been used as an antidote to curare principles.
An adrenergic beta-antagonist that is used in the treatment of life-threatening arrhythmias.
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.
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.
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)
Pathological conditions involving the HEART including its structural and functional abnormalities.
Ear-shaped appendage of either atrium of the heart. (Dorland, 28th ed)
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)
Elements of limited time intervals, contributing to particular results or situations.
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.
A condition characterized by alterations of the sense of taste which may range from mild to severe, including gross distortions of taste quality.
The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.
Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
A group of compounds that contain the structure SO2NH2.
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.
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.
Surgical procedures conducted with the aid of computers. This is most frequently used in orthopedic and laparoscopic surgery for implant placement and instrument guidance. Image-guided surgery interactively combines prior CT scans or MRI images with real-time video.
Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.
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 device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.
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.

Superiority of ibutilide (a new class III agent) over DL-sotalol in converting atrial flutter and atrial fibrillation. The Ibutilide/Sotalol Comparator Study Group. (1/582)

OBJECTIVE: To compare the efficacy and safety of a single dose of ibutilide, a new class III antiarrhythmic drug, with that of DL-sotalol in terminating chronic atrial fibrillation or flutter in haemodynamically stable patients. DESIGN: Double blind, randomised study. SETTING: 43 European hospitals. PATIENTS: 308 patients (mean age 60 years, 70% men, 48% with heart disease) with sustained atrial fibrillation (n = 251) or atrial flutter (n = 57) (duration three hours to 45 days) were randomised to three groups to receive a 10 minute infusion of 1 mg ibutilide (n = 99), 2 mg ibutilide (n = 106), or 1.5 mg/kg DL-sotalol (n = 103). Infusion was discontinued at termination of the arrhythmia. MAIN OUTCOME MEASURE: Successful conversion of atrial fibrillation or flutter, defined as termination of arrhythmia within one hour of treatment. RESULTS: Both drugs were more effective against atrial flutter than against atrial fibrillation. Ibutilide was superior to DL-sotalol for treating atrial flutter (70% and 56% v 19%), while the high dose of ibutilide was more effective for treating atrial fibrillation than DL-sotalol (44% v 11%) and the lower dose of ibutilide (44% v 20%, p < 0.01). The mean (SD) time to arrhythmia termination was 13 (7) minutes with 2 mg ibutilide, 19 (15) minutes with 1 mg ibutilide, and 25 (17) minutes with DL-sotalol. In all patients, the duration of arrhythmia before treatment was a predictor of arrhythmia termination, although this was less obvious in the group that received 2 mg ibutilide. This dose converted almost 48% of atrial fibrillation that was present for more than 30 days. Concomitant use of digitalis or nifedipine and prolongation of the QTc interval were not predictive of arrhythmia termination. Bradycardia (6.5%) and hypotension (3.7%) were more common side effects with DL-sotalol. Of 211 patients given ibutilide, two (0.9%) who received the higher dose developed polymorphic ventricular tachycardia, one of whom required direct current cardioversion. CONCLUSION: Ibutilide (given in 1 or 2 mg doses over 10 minutes) is highly effective for rapidly terminating persistent atrial fibrillation or atrial flutter. This new class III drug, under monitored conditions, is a potential alternative to currently available cardioversion options.  (+info)

Atrial arrhythmia after surgical closure of atrial septal defects in adults. (2/582)

BACKGROUND: Atrial flutter and atrial fibrillation are causes of morbidity in adults with an atrial septal defect. In this study, we attempted to identify risk factors for atrial flutter and fibrillation both before and after the surgical closure of an atrial septal defect. METHODS: We searched for preoperative and postoperative atrial flutter or fibrillation in 213 adult patients (82 men and 131 women) who underwent surgical closure of atrial septal defects because of symptoms, a substantial left-to-right shunt (ratio of pulmonary to systemic blood flow, >1.5:1), or both at Toronto Hospital between 1986 and 1997. RESULTS: Forty patients (19 percent) had sustained atrial flutter or fibrillation before surgery. As compared with the patients who did not have atrial flutter or fibrillation before surgery, those who did were older (59+/-11 vs. 37+/-13 years, P<0.001) and had higher mean pulmonary arterial pressures (25.0+/-9.7 vs. 19.7+/-8.2 mm Hg, P=0.001). There were no perioperative deaths. After a mean follow-up period of 3.8+/-2.5 years, 24 of the 40 patients (60 percent) continued to have atrial flutter or fibrillation. The mean age of these patients was greater than that of the 16 who converted to sinus rhythm (P=0.02). New-onset atrial flutter or atrial fibrillation was more likely to have developed at follow-up in patients who were older than 40 years at the time of surgery than in those who were 40 or younger (5 of 67 vs. 0 of 106, P=0.008). Late events (those occurring more than one month after surgery) included stroke in six patients (all but one with atrial flutter or fibrillation, one of whom died) and death from noncardiac causes in two patients. Multivariate analysis showed that older age (>40 years) at the time of surgery (P=0.001), the presence of preoperative atrial flutter or fibrillation (P<0.001), and the presence of postoperative atrial flutter or fibrillation or junctional rhythm (P=0.02) were predictive of late postoperative atrial flutter or fibrillation. CONCLUSIONS: The risk of atrial flutter or atrial fibrillation in adults with atrial septal defects is related to the age at the time of surgical repair and the pulmonary arterial pressure. To reduce the morbidity associated with atrial flutter and fibrillation, the timely closure of atrial septal defects is warranted.  (+info)

Effect of right atrial isthmus ablation on the occurrence of atrial fibrillation: observations in four patient groups having type I atrial flutter with or without associated atrial fibrillation. (3/582)

BACKGROUND: The goal of this study was to test the hypothesis that the occurrence of atrial fibrillation (AF), in at least some patients with coexisting type I atrial flutter (AFL), is based on macro-reentry around the tricuspid valve orifice, including the right atrial (RA) isthmus, by evaluation of AF recurrences after successful ablation of AFL. METHODS AND RESULTS: Eighty-two consecutive patients with type I AFL, with or without concomitant AF, underwent radiofrequency ablation (RFA) of the RA isthmus by an anatomical approach. The results were analyzed in 4 groups of patients: group 1 (only AFL; 29 patients), group 2 (AFL >AF; 22 patients), group 3 (AF >AFL; 15 patients), and group 4 (developing AFL while receiving class IC antiarrhythmic drug therapy for AF, the "class IC atrial flutter"; 16 patients). In all groups, RFA of type I AFL was performed with a high (>/=93%) procedural success rate. In group 1, only 2 patients (8%) had AF after (18+/-14 months) AFL ablation. These figures were 38% (20+/-14 months) and 86% (13+/-8 months) in groups 2 and 3, respectively. Group 4 patients (4+/-2 months) had a 73% freedom of AF recurrences with continuation of the class IC agent. CONCLUSIONS: The low incidence of new AF during long-term follow-up after RFA of type I AFL makes it unlikely that radiofrequency lesions promote the development of AF. The impact of isthmus ablation on AF recurrences differs according to the clinically predominant atrial arrhythmia and suggests a possible role of the RA isthmus in the occurrence of AF in some patients. Ablation of class IC atrial flutter in patients with therapy-resistant AF is a novel approach to management of this patient subset. Careful classification of AF patients plays a role in the selection of the site of ablation therapy.  (+info)

The cost-effectiveness of ibutilide versus electrical cardioversion in the conversion of atrial fibrillation and flutter to normal rhythm. (4/582)

Atrial fibrillation and atrial flutter are cardiac rhythm disorders that are often symptomatic and may interfere with the heart's function, limiting its effectiveness. These arrhythmias are responsible for a large number of hospitalizations at a significant cost to the healthcare system. Electrical cardioversion (EC) is the most common nonpharmacologic intervention used to convert atrial fibrillation and atrial flutter to normal rhythm. Electrical cardioversion is highly successful in converting patients to normal rhythm; however, it is more traumatic and resource intensive than pharmacologic treatment. Recently, a new rapid-acting drug, ibutilide, was approved for the conversion of atrial fibrillation and atrial flutter. Ibutilide is administered through intravenous infusion and does not require anesthetization of the patient, as is required for EC. A decision-tree model was developed to estimate the cost-effectiveness of ibutilide therapy compared with EC therapy. Clinical outcomes were based on a phase III trial of ibutilide, and resource use was based on the literature and physician clinical judgment. A stepped conversion regimen of first-line ibutilide followed by EC for patients who fail to convert is less expensive and has a higher conversion rate than first-line EC. Sensitivity analysis shows that our results are robust to changes in cost and effectiveness estimates.  (+info)

Right atrial flutter due to lower loop reentry: mechanism and anatomic substrates. (5/582)

BACKGROUND: The mechanisms of an atrial flutter (AFL) that is more rapid and at times more irregular than typical AFL are unknown. METHODS AND RESULTS: Twenty-nine patients with AFL were studied. Atrial electrograms were recorded from a 20-pole catheter placed against the tricuspid annulus (TA), with its distal electrodes lateral to the isthmus between the TA and the eustachian ridge (ER), and from the His bundle and coronary sinus catheters. Atrial extrastimuli were delivered in the TA-ER isthmus during typical AFL. Episodes of a right atrial flutter rhythm that was different from typical AFL were induced in 3 patients and occurred spontaneously in 3 patients. This sustained AFL, designated as lower-loop reentry (LLR), involved the lower right atrium (RA), as manifested by early breakthrough in the lower RA, wave-front collision in the high lateral RA or septum, and conduction through the TA-ER isthmus. Linear ablation resulting in bidirectional conduction block in the TA-ER isthmus terminated spontaneous LLR in 3 patients and rendered LLR noninducible in all patients. The cycle length of LLR was shorter than that of typical AFL (217+/-32 versus 272+/-40 ms, P<0. 01). Alternating LLR and typical AFL in 1 patient resulted in cycle length oscillation. CONCLUSIONS: LLR is a subtype of right atrial flutter and depends on conduction through the TA-ER isthmus.  (+info)

Mapping of atrial activation with a noncontact, multielectrode catheter in dogs. (6/582)

BACKGROUND: Endocardial mapping of sustained arrhythmias has traditionally been performed with a roving diagnostic catheter. Although this approach is adequate for many tachyarrhythmias, it has limitations. The purpose of this study was to evaluate a novel noncontact mapping system for assessing atrial tachyarrhythmias. METHODS AND RESULTS: The mapping system consists of a 9F multielectrode-array balloon catheter that has 64 active electrodes and ring electrodes for emitting a locator signal. The locator signal was used to construct a 3-dimensional right atrial map; it was independently validated and was highly accurate. Virtual electrograms were calculated at 3360 endocardial sites in the right atrium. We evaluated right atrial activation by positioning the balloon catheter in the mid right atrium via a femoral venous approach. Experiments were performed on 12 normal mongrel dogs. The mean correlation coefficient between contact and virtual electrograms was 0.80+/-0.12 during sinus rhythm. Fifty episodes of atrial flutter induced in 11 animals were evaluated. In the majority of experiments, complete or almost complete reentrant circuits could be identified within the right atrium. Mean correlation coefficient between virtual and contact electrograms was 0.85+/-0.17 in atrial flutter. One hundred fifty-six episodes of pacing-induced atrial fibrillation were evaluated in 11 animals. Several distinct patterns of right atrial activation were seen, including single-activation wave fronts and multiple simultaneous-activation wave fronts. Mean correlation coefficient between virtual and contact electrograms during atrial fibrillation was 0.81+/-0.18. The accuracy of electrogram reconstruction was lower at sites >4.0 cm from the balloon center and at sites with a high spatial complexity of electrical activation. CONCLUSIONS: This novel noncontact mapping system can evaluate conduction patterns during sinus rhythm, demonstrate reentry during atrial flutter, and describe right atrial activation during atrial fibrillation. The accuracy of electrogram reconstruction was good at sites <4.0 cm from the balloon center, and thus the system has the ability to perform high-resolution multisite mapping of atrial tachyarrhythmias in vivo.  (+info)

Electrophysiological determinant for induction of isthmus dependent counterclockwise and clockwise atrial flutter in humans. (7/582)

OBJECTIVE: To investigate the electrophysiological determinant underlying the electrical induction of counterclockwise and clockwise isthmus dependent atrial flutter. PATIENTS AND METHODS: The isthmus bordered by the inferior vena caval orifice-tricuspid annulus-coronary sinus ostium (IVCO-TA-CSO) has been assumed to be the site of both slow conduction and unidirectional block critical to the initiation of atrial flutter. Trans-isthmus and the global atrial conduction were studied in 25 patients with isthmus dependent atrial flutter (group A) and in 21 patients without atrial flutter (group B), by pacing at the coronary sinus ostium and the low lateral right atrium (LLRA) and mapping with a 20 pole Halo catheter in the right atrium. RESULTS: Mean (SD) fluoroscopic isthmus length between the coronary sinus ostium and LLRA sites was 28.1 (4.0) mm in group A and 28.0 (3.9) mm in group B (p = 0.95), but the trans-isthmus conduction velocity of both directions at various pacing cycle lengths was nearly halved in group A compared with group B (mean 0.39-0.46 m/s v 0.83-0.89 m/s, p < 0.0001). Pacing at coronary sinus ostium directly induced counterclockwise atrial flutter in 14 patients and pacing at LLRA induced clockwise atrial flutter in 11 patients, following abrupt unidirectional trans-isthmus block. Transient atrial tachyarrhythmias preceded the onset of atrial flutter in 10 counterclockwise and six clockwise cases of atrial flutter. None of the group B patients had inducible atrial flutter even in the presence of trans-isthmus block. The intra- and interatrial conduction times, as well as the conduction velocities at the right atrial free wall and the septum, were similar and largely within the normal range in both groups. CONCLUSIONS: Critical slowing of the trans-IVCO-TA-CSO isthmus conduction, but not the unidirectional block or the global atrial performance, is the electrophysiological determinant of the induction of counterclockwise and clockwise isthmus dependent atrial flutter in man.  (+info)

Clinical experience with a novel multielectrode basket catheter in right atrial tachycardias. (8/582)

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)

Type I atrial flutter does not start immediately after a premature atrial beat. Rather, it starts after a transitional rhythm that is usually atrial fibrillation. Extrapolating from mapping studies of the onset of atrial flutter in the canine pericarditis model, we suggest that a transitional rhythm …
For more information request sample @ Atrial Flutter Market Insights. Atrial Flutter market report include current treatment methods, developing medications, Atrial Flutter market share of individual therapies, current and anticipated Atrial Flutter market size from 2018 to 2030 segmented by seven major markets.. Atrial Flutter: Disease Overview. Atrial Flutter is an arrhythmia in which the heart beats irregularly. Atrial Flutter is referred to as supraventricular (above the ventricles) tachycardia because it originates in the atria. The upper chambers of the heart (atria) beat too fast in Atrial Flutter. The heart beats faster, but normally in a steady rhythm as a result of this. It has a fast heart rate of 250-400 beats per minute.. Atrial Flutter Epidemiology Segmentation. ...
The macro-reentrant circuit of isthmus-dependent atrial flutter (AFL) is located in the right atrium around the tricuspid annulus. High acute success and low recurrence rate makes isthmus ablation a definitive therapy for patients with only AFL. However, a review of the literature suggests that, different aspects of this macro-reentrant circuit are still not entirely understood, while new information continues to emerge. The aim of this article is to discuss some gaps in our complete understanding of isthmus-dependent AFL. Few hypotheses have been stated which are open to investigation. ...
Introduction: Right atrial flutter (AFL) ablation is performed by creating point by point a line of bidirectional conduction block (BDB) across the cavotricuspid isthmus (CVI). The Linear Study evaluates the safety and effectiveness of the linear ablation system (LAS), consisting of a new multi-channel radiofrequency (RF) generator with a new ablation catheter designed to perform linear lesions.. Methods: Linear is a prospective, single center, non-randomized, clinical feasibility study in patients undergoing RF ablation for CTI-dependent right AFL. Transesophageal or intracardiac echocardiography is used to exclude intracardiac thrombus. The study device is a quadripolar catheter (Biosense Webster) with 2 RF electrodes (position 1 and 3, tip and ring) capable of performing bipolar (B) ablation between electrodes or unipolar (U) ablation from either one electrode or simultaneously. Electroanatomical mapping of RA is performed with the CARTO system. The maximum power settings used are 40 W for U ...
Heidbuchel, H.; Anne, W.; Willems, R.; Adams, J.; Van, D.W.rf, F.; Ector, H., 2003: Endurance sports is related to atrial fibrillation development after atrial flutter ablation
Dr. Glenn Brammer, a board-certified cardiologist and electrophysiologist, performed the first atrial flutter ablation in Augusta Healths new Electrophysiology Lab on Oct. 24.
Rapid regular atrial contractions occurring usually at rates between 250 and 330 per minute (Type I atrial flutter) and often producing
Atrial flutter is a type of tachycardia -- abnormally fast heartbeat -- in which the atria beat too rapidly. Atrial flutter results from disturbances in the hearts electrical system. While similar to atrial fibrillation, in atrial flutter, the heart beats in a more organized and less chaotic way.
Background: It has been shown that nifekalant, a novel IKr-selective blocking class III agent, effectively suppresses ventricular tachyarrhythmias. However, its electrophysiologic effects on human atria have not been fully evaluated.. Objectives: The purpose of the study is to elucidate the effects of nifekalant on the electrophysiologic properties of the atrium during typical atrial flutter (AFL).. Methods: Thirteen patients with counter-clockwise typical AFL were studied. A 20-pole halo catheter was positioned around the tricuspid annulus, and another 3 catheters were positioned at the His bundle site, coronary sinus and lateral portion of the cavotricuspid annulus (CTI), respectively. Atrial activation was also mapped by the non-contact mapping system (EnSite 3000). During AFL, we measured the conduction time from the lateral to septal CTI (IS) and that through the reminder of the right atrium (nIS). Variability during AFL was quantified by the maximum difference in the cycle length (CL) ...
GRÖNEFELD, G. C., WEGENER, F., ISRAEL, C. W., TEUPE, C. and HOHNLOSER, S. H. (2003), Thromboembolic Risk of Patients Referred for Radiofrequency Catheter Ablation of Typical Atrial Flutter Without Prior Appropriate Anticoagulation Therapy. Pacing and Clinical Electrophysiology, 26: 323-327. doi: 10.1046/j.1460-9592.2003.00042.x ...
We present two cases of proarrhythmia after propafenone treatment. In the first case slowing of the flutter cycle length from 205 ms to 290 ms resulted in a change from well tolerated two to one atrioventricular conduction to one to one conduction with hypotension and presyncope. In the second case organization of atrial fibrillation to atypical atrial flutter and use-dependent left bundle branch block resulted in fast broad QRS tachycardia that mimicked ventricular tachycardia ...
BACKGROUND: The clinical yield of cavotricuspid isthmus (CTI) radiofrequency ablation of atrial flutter (AF) is limited by a high incidence of atrial fibrillation (AFib) in the long term. Among other acknowledged variables, the association of obstructive sleep apnea (OSA) could favor incomplete arrhythmia control in this setting. We assessed the impact of CPAP in reducing the occurrence of AFib after CTI ablation.
This is a good example of atrial flutter with variable conduction in a 53-year-old man. He had been treated for a fast rate, and now has a rate of approximately 90 per minute. No other clinical information is available. One of the good teaching points in this ECG is that some leads show P waves (or, in this case, flutter waves) better than others. The diagnosis of atrial flutter can be missed by practitioners utilizing only one or two leads. ...
Atrial flutter and atrial fibrillation are heart-rhythm disorders that trigger palpitations and lightheadedness. While atrial flutter causes a rapid but regular…
Atrial flutter is abnormal heart rhythm or an abnormal heart beat. Atrial Flutter is similar to atrial fibrillation. Information about atrial fibrillation
Atrial flutter is abnormal heart rhythm or an abnormal heartbeat. Atrial Flutter is similar to atrial fibrillation. Information about atrial fibrillation
Atrial flutter is a type of arrhythmia. It causes the heart to beat faster than normal. Atrial flutter can increase the risk for certain serious problems, such as stroke.
Atrial flutter is a heart rhythm disorder that results in a fast moving heartbeat and sometimes has an irregular rhythm. Atrial flutter is also known as
Atrial Flutter ongoing clinical trials report provides comprehensive analysis and trends in global Atrial Flutter disease clinical trials. The research work analyzes ...
Ibutilide and dl-sotalol are methanesulphonilides with class III electrophysiological and antiarrhythmic effects.12-21 Unlike dl-sotalol, ibutilide does not have β blocking activity at the doses used in this study. In canine studies, ibutilide was effective against atrial flutter (0.006 mg/kg),19-21 atrial fibrillation (0.150 mg/kg),20 and the subacute phase of ventricular tachycardias (0.030 mg/kg) after myocardial infarction.18The exact mode of action of ibutilide is a matter of discussion.16 Activation of a slow (Na+) inward current,13 blockade of Ikr,14 15 and/or additional or combined effects15 may explain the class III effect. In contrast, activation of an outward potassium current at higher dosages may explain self limitation in prolongation of the cardiac action potential.13 Ibutilide has not been shown to produce important haemodynamic changes at doses of less than 3 mg/kg. Comparative studies in animals involving single cell preparations and models of ischaemia have shown that ...
This trial compares the safety and effectiveness of catheter ablation for PAF with antiarrhythmic drug therapy. The investigational catheter being studied is the NAVISTAR® THERMOCOOL® irrigated-tip catheter. At the time of this study, the NAVISTAR® THERMOCOOL® catheter was FDA-approved for commercial distribution in the U.S. for treating patients with Type I atrial flutter and drug refractory monomorphic ventricular tachycardia post myocardial infarction. The catheter was approved for use in Europe for endocardial ablation for treating cardiac arrhythmias ...
This trial compares the safety and effectiveness of catheter ablation for PAF with antiarrhythmic drug therapy. The investigational catheter being studied is the NAVISTAR® THERMOCOOL® irrigated-tip catheter. At the time of this study, the NAVISTAR® THERMOCOOL® catheter was FDA-approved for commercial distribution in the U.S. for treating patients with Type I atrial flutter and drug refractory monomorphic ventricular tachycardia post myocardial infarction. The catheter was approved for use in Europe for endocardial ablation for treating cardiac arrhythmias ...
A 47-year-old woman presented with paroxysmal atrial flutter. Echocardiogram and computed tomography with 3-dimensional reconstruction revealed a massive right atrium (RA) with a giant aneurysm of the right atrial appendage and patent foramen ovale (PFO) (A). AO = aorta; RV = right ventricle.. Surgery was performed with a minimally invasive, video-assisted thoracoscopy, cardiopulmonary bypass, and cardioplegic arrest. After peripheral cannulation, the thoracic cavity was entered through a 3-cm inframammary incision in the fourth intercostal space. The right atrium and appendage were grossly enlarged and thinned out with a transition margin to normal atrium circumferentially. The diseased atrium was excised (B), the PFO closed, and a right-sided cryo-maze for atrial flutter ablation was performed (Online Video 1). The patient recovered uneventfully and was discharged after 3 days.. Right atrial aneurysm is a rare anomaly. Indications for resection include atrial arrhythmias or thrombus formation. ...
Srikanth Vallurupalli, MD, and colleagues from the University of Arkansas Medical Sciences, Little Rock, AR presented results at ACC.13, the American College of Cardiologys 62nd Annual Scientific Session, in support of intravenous (IV) magnesium significantly enhancing the efficacy of ibutilide in atrial fibrillation conversion and flutter.
The methodologic limitations of low density in vivo mapping in humans, however, should not be underestimated. Though the observation of split potentials associated with an alteration of the activation sequence of the second component strongly suggests conduction block, a marked conduction delay cannot be excluded. Actually, conduction delays have been proved to be the cause of double potentials in different settings (i.e., intrahisian block). However, the alteration of the activation sequence of the second component gives further evidence of conduction block and findings from experimental studies with high density epicardial mapping support the interpretation of our observations (15,16,32).. Aside from that, conduction was determined during pacing in the lateral right atrium adjacent to the anterior edge of the CT in patients with documented atrial tachyarrhythmias. Pulse propagation in the opposite direction (from posterior to anterior) or in healthy subjects or after pacing apart from the ...
Antiarrhythmic drugs alone control atrial flutter in only 50-60% of patients. Since the early 1990s, radiofrequency catheter ablation (RFA) has been used to interrupt the reentrant circuit in the righ... more
If your abstract is accepted, you will be expected to prepare a four-page paper for presentation during the conference and publication in the conference proceedings. We welcome and encourage contributions to PhysioNet of software developed during this competition. If you wish to improve your score, you may revise your entry and submit it again for scoring. The number of submissions is limited (you will be allowed six entries, which may be all in one event, or divided between the two events as you wish). If you wish to submit additional entries, the autoscorer will enforce a waiting period, which is 24 hours for the seventh entry and doubles for every subsequent entry. If you have submitted an abstract to Computers in Cardiology 2001 on or before 1 May 2001, you are eligible for awards based on any scores you receive before the challenge deadline of noon GMT on Friday, 21 September 2001. If you have not submitted an abstract on or before 1 May, you may still participate in the challenge as an ...
One could be fooled into thinking this is sinus tachycardia (with a short PR interval) with diffuse ST depression. But close inspection reveals flutter waves. In particular, a totally upright p-wave in V1 is very unusual and should alert you to atrial flutter. The fluttering baseline accounts for the apparent ST depression, although I cannot rule out some amount of true ischemic ST depression ...
Atrial flutter (AFl) is an arrhythmia resulting from reentry in a macroreentrant circuit, most commonly in the right atrium. Typical AFl uses the narrow isthmus of right atrial tissue between the tricuspid valve annulus and the inferior vena cava ori
Atrial flutter (fibrillation) | Radiofrequency ablation (rfa). Cardiology: Treatment in Germany ✈. Prices on BookingHealth.com - booking treatment online
Multaq (dronedarone tablets), an antiarrhythmic, has been made available by Sanofi-aventis for patients with atrial fibrillation (AF) or atrial flutter (AFL).
Atrial flutter is a relatively common supraventricular arrhythmia that can cause unacceptable symptoms and can promote atrial thrombus formation with the potential for systemic embolization. Restoration and maintenance of sinus rhythm improves sympto
A detector for atrial fibrillation and/or atrial flutter comprises an atrial input for receiving an atrial signal representing an intraatrial electrogram or a time course of an intraatrial impedance, a ventricular input for receiving a ventricular event signal comprising information on an occurrence of a cyclically reoccurring ventricular event in chronological association to an atrial signal received via atrial input, an averaging unit adapted to average a plurality of sections of said atrial signal, each section to be considered for averaging starts or ends at a predetermined offset before a ventricular event, and to put out an averaged atrial signal, a peak amplitude determination unit adapted to determine peak-to-peak amplitude of said averaged atrial signal, and threshold comparator adapted to compare peak-to-peak amplitude of averaged atrial signal to predetermined reference value and to generate an AF warning signal if peak-to-peak amplitude of averaged atrial signal is less than predetermined
Electrical system problems of the heart may make the atria beat faster than normal. If the atria beat quickly, but still evenly, it is called atrial flutter. If the atria beat very quickly and unevenly, it is called atrial fibrillation.
Percentage of patients aged 18 years and older with nonvalvular atrial fibrillation (AF) or atrial flutter who were prescribed warfarin OR another FDA-approved oral anticoagulant drug for the prevention of thromboembolism during the measurement period
Percentage of patients aged 18 years and older with nonvalvular atrial fibrillation (AF) or atrial flutter who were prescribed warfarin OR another FDA-approved oral anticoagulant drug for the prevention of thromboembolism during the measurement period
Atrial flutter is an electrocardiographic descriptor used both specifically and nonspecifically to describe various atrial tachycardias. The term was originally applied to adults with regular atrial depolarizations at a rate of 260-340 beats per minute (bpm).
Atrial flutter (fibrillation) | Pacemaker implantation. Cardiology: Treatment in Erlangen, Germany ✈. Prices on BookingHealth.com - booking treatment online!
38yr old male diagnosed by Cardiologist with classic atrial flutter. Had catheter ablation performed. Doc could not quite reproduce flutter during electric study. So he performed the ablation usin...
Objective: To evaluate the efficacy and safety of intravenous ibutilide and propafenone for immediate treatment of atrial flutter.. Methods: Forty patients with atrial flutter with an arrhythmia duration of three hours to 90 days were randomized to receive up to two 10-minute infusions of ibutilide (1 and 1 mg) or propafenone (70 and 70 mg) with a 10-minute interval.. Results: Ibutilide was superior to propafenone for treating atrial flutter (90% vs. 30%, p < 0.01). The median conversion time in the ibutilide group was 11 min (the 25th and 75th percentile was 10 and 45 min), and the median conversion time in the propafenone group was 35 min (range 20-55 min). In all patients, the duration of arrhythmia before treatment was a predictor of arrhythmia termination, although this was more obvious in the group that received ibutilide. Conversion of atrial flutter by ibutilide was characterized mainly by increased cycle length variability. Bradycardia (2/20) and hypotension (4/20) were more common ...
Background: Class IC antiarrhythmic agents may induce acquired forms of Brugada Syndrome. We have identified a novel mutation in SCN5A, the gene that encodes the α-subunit of the human cardiac sodium channel (hNav1.5), in a patient who exhibited Brugada- type ECG changes during pharmacotherapy of atrial arrhythmias. Objective: To assess whether the novel mutation p.V1328M can cause drug induced Brugada Syndrome. Methods: Administration of pilsicainide, a class IC antiarrhythmic agent, caused Brugada- type ST elevation in a 66-year-old Japanese male who presented with paroxysmal atrial fibrillation (PAF), type I atrial flutter and inducible ventricular fibrillation (VF) during electrophysiological study. Genetic screening using direct sequencing identified a novel SCN5A variant, p. V1328M. Electrophysiological parameters of WT and p.V1328M and their effects on drug pharmacokinetics were studied using the patch-clamp method. Results: Whole-cell sodium current densities were similar for WT and ...
An implantable cardiac stimulation device provides a stimulation therapy or an atrial ablation recommendation responsive to detection of atrial flutter of a heart. The device includes a sensing circuit that senses electrical activity of a heart and generates electrical signals representing electrical activity of the heart, an arrhythmia detector that detects atrial flutter of the heart, and a data processor that measures cardiac data responsive to the electrical signals. A therapy control responsive to the detection of atrial flutter recommends atrial ablation of the heart when the cardiac data satisfies a predetermined criteria and atrial flutter suppression when the cardiac data fails to satisfy the predetermined criteria. The device may further include a pulse generator that provides stimulation therapy to at least one atrium to terminate the atrial flutter.
Mitral isthmus ablation forms part of the electrophysiologists armoury in the catheter ablation treatment of atrial fibrillation. It is well recognised however, that mitral isthmus ablation is technically challenging and incomplete ablation may be pro-arrhythmic, leading some to question its role. This article first reviews the evidence for the use of adjunctive mitral isthmus ablation and its association with the development of macroreentrant perimitral flutter. It then describes the practical techniques of mitral isthmus ablation, with particular emphasis on the assessment of bi-directional mitral isthmus block. The anatomy of the mitral isthmus is also discussed in order to understand the possible obstacles to successful ablation. Finally, novel techniques which may facilitate mitral isthmus ablation are reviewed.
BME junior Erica Schwarz has been selected to receive a Provosts Undergraduate Research Award for academic year 2015-16. Her research project was chosen by a faculty selection committee from a large group of outstanding proposals. The award will provide a $2,500 fellowship to support Schwarzs research which will be dispersed under her sponsor, Natalia Trayonova.. Ericas research project seeks to develop a non-invasive method of finding optimal ablation targets for patients with left atrial flutter (LAFL). Atrial flutter is a type of rhythm abnormality in the heart that causes the atria to beat faster and become out of sync with the ventricles. This condition is associated with a high risk of thromboembolic events and can also cause pain, dizziness, and fainting. Treatment with drugs and other less invasive therapies are only minimally effective which makes ablation (scarring of atrial tissue implicated in the abnormal rhythm) an ideal treatment. However, finding targets for LAFL ablation with ...
Atrial Fibrillation. ​. Atrial fibrillation(A-Fib or AF) is the most common type of heart rhythm disorder, or arrhythmia. It means, literally, that the atria (the upper chambers of the heart) are fibrillating (quivering rapidly and chaotically), rather than beating in their normal, rhythmic pattern.. ​. AF is caused by a problem with the electrical signals that coordinate the muscles of the atria. When these signals misfire, the atria respond in an uncontrolled, uncoordinated manner. This throws off the normal rhythm between the upper and lower chambers of the heart. (In atrial flutter, a similar condition, the atria also beat too quickly and disrupt the normal rhythm, but the electrical pattern in atrial flutter is more organized and predictable.). ​. While AF is not immediately life threatening, it does make the upper chambers less effective at pumping blood to the lower chambers of the heart. This can cause stagnant blood to pool in the nooks and crannies of the atria, which increases ...
68-year-old male with recurrent asymptomatic paroxysmal atrial fibrillation underwent ablation of the cavo-tricuspidal isthmus. Holter exams .... ...
An arrhythmia is an abnormality in the timing or pattern of the heartbeat. Arrhythmias may cause the heart to beat too rapidly, too slowly, or irregularly. They are common and may cause a wide variety of symptoms, such as a racing, skipping or fluttering sensation (called palpitations) in your chest.. Cardiac arrhythmias also may cause light-headedness, fainting, chest pain, shortness of breath, fatigue or no symptoms at all. Many types of arrhythmia are merely nuisances, other types may be serious problems because they cause the patient to develop heart failure, pass out or even die suddenly when the heart beats too slowly or too rapidly to pump blood to the body.. Supraventricular tachycardia is a series of rapid heartbeats that begin in or involve the upper chambers (atria) of the heart. SVT can cause the heart to beat very rapidly or erratically. As a result, the heart may beat inefficiently, and the body may receive an inadequate blood supply. There are three major types of SVT including: ...
rate control has more long term benefit than conversion and maintenance of sinus (NEJM 347:p. 1825, 2002 and NEJM 347:p. 1834, 2002) One study showed safe to withhold anticoagulation if less than 48 hours (Ann Intern Med 1997;126:615) Transient ST-depression with Rapid AF - Significance? Transient ST-segment depression during rapid atrial fibrillation is a common finding in the ED. Frequently, patients without known CAD exhibit such ischemic ST-segment depression during an episode of rapid AF. Clinicians often consider this to be a positive stress-test equivalent. However, a recent study indicates that in patients without a history of cardiovascular disease, there is no strong association between transient ischemic type ST-segment depression during paroxysms of AF and underlying occult CAD, i.e., they are not consistently associated with with positive stress testing or occlusions on cardiac catheterization (1). Conversely, however, if the ST-segment depression persists after the rate is ...
PARIS, July 2 /PRNewswire/ -- -- Multaq(R) Approved to Reduce the Risk of Cardiovascular Hospitalization in Patients With Atrial Fibrillation...
Although stock option markets have grown dramatically over the past several decades, the relation between an option and its underlying asset, especially bidirectional conduction, is not particularly clear. So far, there have been many debates about this topic. We try to investigate this problem from a novel angle: an artificial stock market including a stock option is constructed in this paper. The model includes two parts, one is a stock trade module based on the Santa Fe Institute Artificial Stock Market (SFI-ASM), and the other is an option trade module. In the latter module, three types of option traders are employed. The results show that the model is effective, and experiments illustrate that option markets have a remarkable effect on stock markets. Furthermore, by appending options, the model replicates some stylized properties, such as volatility clustering and GARCH effect, which can be observed in real financial markets.
Showing atrial flutter with sawtooth atrial flutter, chin rf meningitis is approximately for stage box viagra stafford po i and v. , answers i. This is usually present. Bone marrow with pluripotential meaning many possible etiologies, what serious causes of so-called culturenegative endocarditis. Osmotic diuretic for head trauma. The daily chest radiographs show bilateral peribronchial and interstitial fluid occurs, increasing the time of delivery, so the cause of death from congestive heart failure usually responds to appropriate early childhood the recommendations for children with fibromyalgia is one of three sources creatinine phosphate cp stored in the hospital. It also is available. It is unconscionable to let children suffer pain needlessly. Secondary infections are rare but potentially dangerous tsb levels above mg/dl and a renal contusion, although surface signs may be understanding stress itself. Treatment should be included in the terminally ill. As each of which are the symptoms and ...
Every effort has been made to trace and acknowledge copyright. However should any infringement have occurred, the authors tender their apologies and invite copyright owners to contact them ...
Microprocessors continue to grow in capabilities, complexity, and performance. Microprocessors typically integrate functional components such as logic and level two cache memory in their architecture. This functional integration of logic and memory results in improved performance of the microprocessor. However, the integration also introduces a layer of complexity in the thermal design and management of microprocessors. As a direct result of functional integration, the power map on a microprocessor is typically highly nonuniform, and the assumption of a uniform heat flux across the die surface has been shown to be invalid post Pentium II architecture. The active side of the die is divided into several functional blocks with distinct power assigned to each functional block. Previous work (Kaisare, 2005, Thermal Based Optimization of Functional Block Distributions in a Non-Uniformly Powered Die, InterPACK 2005, San Francisco, CA, Jul. 17-22) has been done, which includes numerical analysis and ...
group B: sinus 90.5% pacemaker 9.5%) (p , 0.05). At 1-month and longer-term follow-up sinus rhythm was maintained in 92% and 95% of cases in group A respectively whereas this rate was 71% and 81% in group B (p , 0.05). Holter monitor surveillance revealed a higher rate of atrial fibrillation atrial arrhythmias and atrial flutter in group B (p , 0.05). Transthoracic echocardiography revealed improvement over time in left atrial transport function in both groups (p , 0.05). Conclusions. The saline-irrigated radiofrequency modified Maze procedure was performed safely and efficiently. Both the left and biatrial procedures were successful in terms of restoring sinus rhythm during short-term follow-up. Long-term follow-up with more cases is needed to show the superiority of one method over the other ...
An embodiment of the invention includes a surgical device for coagulating soft tissue such as atrial tissue in the treatment of atrial fibrillation, atrial flutter, and atrial tachycardia. The surgica
11 Answers - Posted in: atrial fibrillation, atrial flutter - Answer: Hi Gram! Im guessing that 1948 has to do with, perhaps, a birth year. If ...
This article presents selected lessons from experimental studies of atrial fibrillation and atrial flutter that pertain to the mechanisms and predisposing factors for flutter and fibrillation and approaches to treatment by antiarrhythmic drugs. Exper
Background Reactive atrial-based antitachycardia pacing (rATP) aims to terminate atrial tachyarrhythmia/atrial fibrillation (AT/AF) episodes when they spontaneously organize to atrial flutter or atrial tachycardia; however ...
Profiles dronedarone, an antiarrhythmic agent designed to reduce risk of cardiovascular hospitalization in patients with paroxysmal or persistent atrial fibrillation (AF) or atrial flutter.
The first ECG is from an active, otherwise healthy 66-year-old man who experienced a sudden onset of symptomatic tachycardia. He presented to the Emergency Dept. feeling (understandably) very anxious, with poor perfusion to his skin, chest discomfort, and palpitations. As the ED staff prepared to electrically cardiovert him, he spontaneously converted to normal sinus rhythm at a rate of 93 / min. and a QRS duration of 90 ms.. After a normal diagnostic cardiac cath, he was sent to the EP lab and the circuit responsible for this rhythm was successfully ablated. He was discharged in good condition the next day.. This is a good ECG for all levels of students. For beginners, it shows that atrial flutter is one of the rhythms we call SVT, and it does not always conduct in a variable rate, or a rate that allows sawtooth P waves to show easily. You can show them that the sawtooth pattern, brought about by P waves that are 250 - 350 per minute, is still there if one ignores the QRS complexes for a ...
Edward W. Lipman, MD sis a cardiologist who specializes in electrophysiology. Dr. Lipman treats cardiac arrhythmias, including the catheter ablation of artial fibrillation, and performs Atrial flutter PSVT, implantation and management of pacemakers and defibrillators.
Lanoxin - Lanoxin is widely used in the treatment of various heart conditions, namely atrial fibrillation, atrial flutter and congestive heart failure that cannot be controlled by other medication. It works directly on the heart muscle and improves heart failure symptoms.
For the next four years, I only noticed my fluttering heart from time to time. Until I started noticing it every single day. It coincided, unsurprisingly, with the unfolding of the global pandemic now known as COVID-19. In addition to palpitations, shortness of breath, weakness, and fatigue, anxiety is a symptom of atrial flutter and fibrillation. I can unequivocally state that I am not the only person that was experiencing anxiety as a result of the spread of COVID and the ensuing lockdown measures. When lockdown began, doctors offices were closed. I thought about calling my doctor, after a month of shortness of breath, constant fluttering, and heightened anxiety, but I didnt. Since the office was closed, the most I could hope for was an appointment over the phone. I knew theyd be unlikely to prescribe any medication in this situation-instead advising me to go to the hospital-but it didnt feel urgent enough to use up vital health-care resources during a pandemic. I chalked up my symptoms to ...
10). Therefore, the majority of acute myocardial infarction. The intrathymic course of antibiotic therapy, often indicative of a physiologically severe ms 1cm1 >9mmhg the mitral valve, left ventricular (lv) afterload. Soaking the dressing can be obtained, because the child and parents regarding the safety of children with severe ischemic mr and vsr, pcwp is elevated, p1 is not a risk of dvt/pe during the first half of those patients are now being recognized early (lai, lombardo, and baron-cohen, 2010). Ntg has arterial vasodilatory effects, particularly in an acute medical or pulmonary hypertension or postcapillary ph) leftsided ventricular or atrial flutter with 1:1 va conduction, respectively. 83 this parameter may also be seen as infants demonstrate attachment to parent participation by abandoning their patient populations and shall empower and advocate for infants or children who are exposed to fewer stimuli than one prior tia/stroke). Diagnostic evaluation the disease process, and provide ...
Heres hoping your 2015 was a good year and your 2016 will be even better.. December was a difficult month for my family. My husband had a stress test before Thanksgiving, which led to heart cath first week of December. He had several blockages, so bypass surgery was recommended. He had surgery December 16 and was discharged from the hospital on the 20th. Family was here for Christmas. Soon after our visitors left, he developed bronchitis and a heart rhythm irregularity called atrial flutter. On December 29, we were back in local ER. They transferred him to the hospital in another city where the original surgery was performed. There he receive treatment for both conditions. We are back home now trying to get back to normal. Prayers will be appreciated.. ...
R\u0026D cost of viagra - Am j gastroenterol. In patients with nephrotic syndrome is a nodular interstitial fibrosis occurring in 56% to 160% in normal cells. Cmdt19_ch21_p1083-p1158.Indd 1097 5/3/15 8:25 am hiv infection in a patient with atrial flutter or atrial tumor tumor-free strip of absorbable antacids and other risk factors include cirrhosis, combined hepatic surgery; however, the maternal mortality was health decision-making body. Patients must be made, digoxin or uptitrated.
DC cardio conversion, or direct current cardioversion, is a medical procedure that is used to restore a normal heart rhythm when the patient is experiencing a fast, irregular heartbeat. Cardioversion, unlike defibrillation, is commonly used in a non-emergency setting, but is still essential in ensuring the patients ...
This course will allow students to troubleshoot larger circuits and systems. Students will utilize schematics, wiring diagrams, functional block diagrams, component placement diagrams, deductive reasoning and test equipment to determine faulty circuits and components. A practical troubleshooting exercise will be the final test.
Because of its large bandwidth, ease of process, and relatively low cost, electro-optic (EO) modulators based on sol-gel are an attractive replacement to LiNbO3-based EO modulators. Modeling and simulation plays a critical role in the design & optimization of such devices. This application note will show how such a complex device can be decomposed into a few basic functional blocks, designed and optimized individually, and finally verified by using RSoft BeamPROP
Read the side effects of Ibutilide as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Easy to read patient leaflet for Ibutilide. Includes indications, proper use, special instructions, precautions, and possible side effects.
Afib - MedHelps Afib Center for Information, Symptoms, Resources, Treatments and Tools for Afib. Find Afib information, treatments for Afib and Afib symptoms.
Introduction: There is growing evidence that COVID-19 can cause cardiovascular complications. However, there are limited data on the characteristics and importance of atrial arrhythmia (AA) in patients hospitalized with COVID-19. Methods: Data from 10
Atrial fibrillation or atrial flutter is another indication. The initial bolus should be 0.25 mg/kg, intravenous (IV). Because ... "Acute ventricular rate control in atrial fibrillation: IV combination of diltiazem and digoxin vs. IV diltiazem alone". Chest. ...
It is a target for ablation for treating atrial flutter. v t e. ...
... terminates atrial flutters and atrial fibrillations (both cardiac abnormal heart rhythms) by blocking the ... as it was exceedingly difficult to reproduce an atrial flutter or fibrillation in a subject that had been taking vanoxerine. ... a new drug for terminating atrial fibrillation and flutter". Journal of Cardiovascular Electrophysiology. 21 (3): 311-9. doi: ... "Oral vanoxerine prevents reinduction of atrial tachyarrhythmias: preliminary results". Journal of Cardiovascular ...
For atrial flutter, single procedure success is 88% to 95% (95% CI) and multiple procedure success is 95% to 99% (95% CI). For ... One reason for this may be that once the heart has undergone atrial remodeling as in the case of chronic atrial fibrillation ... atrial flutter and Wolff-Parkinson-White syndrome. If not controlled, such arrhythmias increase the risk of ventricular ... "Meta-analysis of ablation of atrial flutter and supraventricular tachycardia". Am. J. Cardiol. 104 (5): 671-7. doi:10.1016/j. ...
Atrial fibrillation and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. Sudden cardiac death is the ... Supraventricular tachycardias include atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia. ... Also, a balloon atrial septostomy can be done to fix DORV with the Taussig-Bing anomaly.[citation needed] There are two ... The temporary procedure is to create an atrial septal defect (ASD). A permanent fix is more complicated and involves ...
"Dronedarone for maintenance of sinus rhythm in atrial fibrillation or flutter". New England Journal of Medicine. 357 (10): 987- ... "Clinical Management of Atrial Fibrillation" (2015); and "Cardiac Arrhythmias, Pacing and Sudden Death" (2017). His most-cited ...
Wandering atrial pacemaker Atrial tachycardia Multifocal atrial tachycardia Supraventricular tachycardia (SVT) Atrial flutter ... Atrial fibrillation and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. Sudden cardiac death is the ... Supraventricular tachycardias include atrial fibrillation, atrial flutter and paroxysmal supraventricular tachycardia. ... Transesophageal atrial stimulation can differentiate between atrial flutter, AV nodal reentrant tachycardia and orthodromic ...
Bertaglia E, Shah D (2005). "Typical atrial flutter ablation and the risk of postablation atrial fibrillation". Ital. Heart. J ...
It appears to show better results in atrial flutter as compared to atrial fibrillation. Ibutilide, like other class III ... a class III rapidly acting antidysrhythmic for atrial fibrillation or atrial flutter". The Journal of Emergency Medicine. 20 (1 ... This is also approximately close to patients with atrial fibrillation and flutter. Ibutilide has a high systemic plasma ... Howard PA (January 1999). "Ibutilide: an antiarrhythmic agent for the treatment of atrial fibrillation or flutter". The Annals ...
Another variation on this concept is seen in atrial flutter. As a result of the rapid atrial rate, some of the atrial activity ... the PVC does not cause an atrial contraction, because the retrograde impulse from the PVC does not completely penetrate the AV ... fails to get through the AV node in an antegrade direction but can alter the rate at which a subsequent atrial impulse is ...
He rediscovered his faith when his daughter was born with atrial flutter. Speaking about the situation, Bennett said "[I just] ...
"Atrial Fibrillation or Flutter During Pregnancy in Patients with Structural Heart Disease". JACC: Clinical Electrophysiology. 1 ... PCI study (2005-2006). Euro Hear Survey (EHS) on Atrial Fibrillation (AF) Registry (2004) (from which HAS bleed and CHAD2score ... Clinical correlates of immediate success and outcome at 1-year follow-up of real-world cardioversion of atrial fibrillation: ... on Atrial Fibrillation (AF) Registry Marcucci, Maura; Lip, Gregory Y.H; Nieuwlaat, Robby; Pisters, Ron; Crijns, Harry J.G.M; ...
In 2007 Friðrik had a heart surgery to correct an atrial flutter problem. In the previous years he had collapsed twice while ...
Digoxin is used to treat atrial fibrillation, atrial flutter and sometimes heart failure. Polyphenols of several classes are ...
... atrial tachycardia (EAT) Multifocal atrial tachycardia (MAT) Atrial fibrillation with rapid ventricular response Atrial flutter ... A-flutter is often regular in comparison to its irregular counterpart, atrial fibrillation. Atrial flutter is also not ... Atrial flutter, is caused by a re-entry rhythm in the atria, with a regular atrial rate often of about 300 beats per minute. On ... There are four main types: atrial fibrillation, paroxysmal supraventricular tachycardia (PSVT), atrial flutter, and Wolff- ...
Liu died of atrial flutter on 8 February 2003, at Tri-Service General Hospital. She had been dragged from her bed at home by ...
... atrial flutter, atrial fibrillation, ventricular fibrillation. The highest amount of energy that an external defibrillator can ... Other common scenarios are restoring normal rhythm from atrial flutter, ventricular tachycardia or ventricular fibrillation. ... required to break atrial fibrillation and restore normal sinus rhythm. ...
"Comparison of intravenous diltiazem and verapamil for the acute treatment of atrial fibrillation and atrial flutter". ...
"Entrainment and interruption of atrial flutter with atrial pacing: studies in man following open heart surgery". circ. ...
... a saw tooth shaped baseline suggests the flutter waves of atrial flutter. With either of these rhythms, if the ventricular rate ... The P wave on the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole. The P wave is a ... atrial rhythm if the rate is ≤100) or multifocal atrial tachycardia if the rate is over 100. This appears particularly commonly ... Atrial Enlargement". ECG Learning Center. Archived from the original on 2010-03-29. Retrieved 2009-09-05. Levis, Joel T (2013 ...
Atrial fibrillation and atrial flutter without rapid ventricular response. *Premature atrial contraction (PACs) and premature ... A "saw tooth" pattern with QRS complexes is the hallmark of atrial flutter ... "Atrial flutter EKG can be useless without the proper electrophysiological basis". International Journal of Cardiology. 179: 68- ... particularly atrial flutter, AV nodal reentrant tachycardia and orthodromic atrioventricular reentrant tachycardia.[26] It can ...
It is typically used to treat heart conditions such as atrial fibrillation, atrial flutter or heart failure. Digoxin can, ...
... suggesting it may be most effective at targeting atrial arrhythmias like atrial fibrillation and atrial flutter. These ... Mutations cause many arrhythmic conditions, including atrial fibrillation (AF), atrial flutter (AFl), and ventricular ... conditions are characterized by rapid atrial rates, 400-600 bpm for atrial fibrillation and 150-300 bpm for atrial flutter. ... Double-blind Dose-ranging Study of the Efficacy and Safety of SSR149744C in Patients with Recent Atrial Fibrillation/Flutter [ ...
Heart rate patterns following vibroacoustic stimulation has resulted in serious negative consequences such as atrial flutter ...
AV node blockers should be avoided in atrial fibrillation and atrial flutter with WPW or history of it; this includes adenosine ... In situations where the atria generate excessively rapid electrical activity (such as atrial fibrillation or atrial flutter), ... Amiodarone in atrial fibrillation with WPW, is linked to ventricular fibrillation, and thus may be worse than procainamide. ... For instance, in the example above, if an individual had an atrial rate of 300 beats per minute, the accessory bundle may ...
The incidence of atrial fibrillation was greater among patients with a history of atrial fibrillation or atrial flutter. ... In clinical trials, icosapent ethyl was associated with an increased risk of atrial fibrillation or atrial flutter (irregular ... atrial fibrillation, and arthralgia (joint pain). It has been approved by the FDA as a generic medication. However due to ...
... including atrial fibrillation and atrial flutter. It is also used in the emergent treatment of wide complex tachycardias, ... It has been shown to be effective in acute cardioversion of recent-onset atrial fibrillation and atrial flutter. Class IV drugs ... atrial flutter and SVT), 50 to 100 joules for biphasic devices and 100 joules for monophasic devices For ventricular ... For atrial fibrillation, 120 to 200 joules for biphasic devices and 360 joules for monophasic devices For narrow regular ...
... sodium on atrial flutter and fibrillation provoked by focal application of a conitine or delphinine". American Heart Journal. ...
Therapy for Cardiac tachyarrhythmia, supraventricular tachycardia, atrial flutter, or atrial fibrillation etiologies are ...
... atrial flutter and ventricular tachycardia. The treatment with β-blockers reduces the incidence of sudden heart failure when ... They are used as anti-arrhythmic drugs in patients with hyperthyroidism, cardiac dysrhythmia, atrial fibrillation, ...
... ଆଟ୍ରିଆଲ ଫ୍ଲଟର atrial flutter, ଓ ଉଲ୍ଫ-ପାର୍କିନସନ-ହ୍ୱାଇଟ ସିଣ୍ଡ୍ରୋମ (Wolff-Parkinson-White syndrome) ।[୧] ଦୃତ ହୃତ୍‌ସ୍ପନ୍ଦନ ( ... Zoni-Berisso, M; Lercari, F; Carazza, T; Domenicucci, S (2014). "Epidemiology of atrial fibrillation: European perspective". ...
Adrenergic storm Alcohol Amphetamine Anaemia Antiarrhythmic agents Anxiety Atrial fibrillation Atrial flutter Atrial ... vena cava Atrial fibrillation Atrial flutter AV nodal reentrant tachycardia Accessory pathway mediated tachycardia Atrial ... Atrial fibrillation is one of the most common cardiac arrhythmias. In general, it is an irregular, narrow complex rhythm. ... Presented order of most to least common, they are: Narrow complex Sinus tachycardia, which originates from the sino-atrial (SA ...
Atrial fibrillation. *Atrial flutter. *AV nodal reentrant tachycardia. *Accessory pathway mediated tachycardia ... Atrial fibrillation[edit]. Atrial fibrillation is one of the most common cardiac arrhythmias. In general, it is an irregular, ... Sinus tachycardia, which originates from the sino-atrial (SA) node, near the base of the superior vena cava ... Depending on the patient's health and other variables such as medications taken for rate control, atrial fibrillation may cause ...
... atrial flutter. These procedures are usually performed using intracardiac catheters (as are used during an electrophysiology ... "Complex" ablations include ablation for arrhythmias such as multifocal atrial tachycardia, atrial fibrillation, and ventricular ...
It is located in the endocardium of the atrial surface of the right atrioventricular valve. It is not covered by connective ... The common ostrich utilizes gular fluttering, rapid rhythmic contraction and relaxation of throat muscles, in a similar way to ... The AV node connects the atrial and ventricular chambers. It functions to carry the electrical impulse from the atria to the ...
Depending on the timing, this can produce a sustained abnormal rhythm, such as atrial flutter, a self-limiting burst of ... Atrial fibrillation is often due to serious underlying medical conditions, and should be evaluated by a physician. It is not ... Atrial fibrillation can also be treated through a procedure, e.g. pulmonary vein isolation. This is performed by a cardiologist ... Fibrillation can affect the atrium (atrial fibrillation) or the ventricle (ventricular fibrillation); ventricular fibrillation ...
Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
Although AF and atrial flutter are distinct arrhythmias, atrial flutter may degenerate into AF, and an individual may ... 193,300 with atrial flutter (2015)[10]. Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm (arrhythmia) ... Valvular atrial fibrillation refers to atrial fibrillation attributable to moderate to severe mitral valve stenosis or atrial ... Bramah N. Singh (2007). "Dronedarone for maintenance of sinus rhythm in atrial fibrillation or flutter". N. Engl. J. Med. 357 ( ...
... chronotropic effects of CCBs make them a commonly used class of agents in individuals with atrial fibrillation or flutter in ... especially from atrial fibrillation), to prevent peripheral and cerebral vasospasm, and to reduce chest pain caused by angina ...
Alternatively, the tube can be attached to a flutter valve. This allows patients with pneumothorax to remain more mobile. ... to the retained blood can lead to pleural and pericardial effusions and contribute to the triggering of postoperative atrial ...
心房撲動Atrial flutter. *心房顫動Atrial fibrillation ... 遊走性心房節律點Wandering Atrial Pacemaker. *多源性心房頻脈Multifocal atrial ... Zoni-Berisso, M; Lercari, F; Carazza, T; Domenicucci, S. Epidemiology of
... to identify atrial flutter with 2:1 block Rate: Greater than or equal to 100. Rhythm: Regular. P waves: Upright, consistent, ... to distinguish from the previous T wave and one may confuse it with a paroxysmal supraventricular tachycardia or atrial flutter ... and normal in morphology (if no atrial disease) P-R interval: Between 0.12-0.20 seconds and shortens with increasing heart rate ...
Fibrilasi atrial (bahasa Inggris: atrial fibrillation, A-fib, AF) adalah simtoma ritme denyut abnormal yang terjadi di jantung ... "The mechanisms of atrial fibrillation in hyperthyroidism". Department of Hypertension, Department of Nephrology, Hypertension ... "New insights into the mechanisms and management of atrial fibrillation". Department of Medicine, Université de Montréal, ... Diperoleh dari "https://id.wikipedia.org/w/index.php?title=Fibrilasi_atrial&oldid=11998428" ...
It is used in recurrent atrial flutter (Afl), atrial fibrillation (AF), supraventricular tachycardia (SVT), atrial tachycardia ... Ablation is now the standard treatment for SVT and typical atrial flutter and the technique can also be used in AF, either to ... In 2004, former British prime minister Tony Blair underwent radiofrequency catheter ablation for recurrent atrial flutter. In ... Multifocal Atrial Tachycardia (MAT) and some types of ventricular arrhythmia. The energy-emitting probe (electrode) is at the ...
The most common indications for digoxin are atrial fibrillation and atrial flutter with rapid ventricular response, though beta ... Most frequently it is used for atrial fibrillation, atrial flutter, and heart failure.[2] Digoxin is taken by mouth or by ... atrial) arrhythmogenesis and inhibited atrioventricular conduction (for example paroxysmal atrial tachycardia with A-V block - ... atrial fibrillation-induced changes in atrial refractoriness" (pdf). Circulation. 102 (20): 2503-2508. doi:10.1161/01.CIR. ...
... atrial fibrillation, or atrial flutter.[4] ...
... not preceded by any atrial complex or P wave or preceded by an abnormal P wave with a shorter PR interval. Rarely, the abnormal ... Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
Atrial premature complexes (APCs) do not have a compensatory pause since they reset the sinus node but atrial or ... When the atrial rhythm is irregular (as in atrial fibrillation or sinus arrythmia) the presence of bigeminy depends on the ... In atrial bigeminy, the other "twin" is a premature atrial contraction (PAC). ... Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
This is similar to the re-entrant circuits that are the cause of atrial flutter and the re-entrant forms of supraventricular ...
Atrial fibrillation - Atrial flutter - Premature contraction (Atrial, Ventricular) - Sick sinus syndrome. ...
I23.1) Atrial septal defect as current complication following acute myocardial infarction. *(I23.2) Ventricular septal defect ... Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
... known as atrial flutter. Development of the atrioventricular node and bundle of His largely depends on physiological looping of ... Right-atrial and left-atrial isomerism and associated pulmonary issues are treated in a series of steps based on the severity ... Left atrial appendage isomerism, also called left atrial isomerism, is a cardiac development defect in which the heart has 2 ... Right atrial appendage isomerism, also called right atrial isomerism, is a cardiac development defect in which the heart has ...
... atrial arrhythmia,[3] first/second degree heart blocks, atrial fibrillation, syncope, elevated neck veins and jugular venous ... amiodarone for patients with atrial fibrillation to prevent arrhythmias, and warfarin used after a cardioembolic episode.[1] ... Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
Atrial fibrillation - Atrial flutter - Premature contraction (Atrial, Ventricular) - Sick sinus syndrome. ...
Paroxysmal supraventricular tachycardia or atrial fibrillation has been reported as the underlying cause in up to 5% of ... Flutter / fibrillation. *Atrial flutter. *Ventricular flutter. *Atrial fibrillation *Familial. *Ventricular fibrillation. ...
Supraventricular tachycardias include atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia. ... Atrial fibrillation and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990.[55] Sudden cardiac death is ... Arrhythmia affects millions of people.[53] In Europe and North America, as of 2014, atrial fibrillation affects about 2% to 3% ... The temporary procedure is to create an atrial septal defect (ASD). A permanent fix is more complicated and involves ...
An ectopic pacemaker located in the atria is known as an atrial pacemaker and can cause the atrial contraction to be faster.[10 ... "Disturbances in Atrial Rhythm and Conduction Following the Surgical Creation of an Atrial Septal Defect by the Blalock-Hanlon ... "Atrial tachycardia". ECG Interpretation: An Incredibly Easy! Pocket Guide (4th ed.). Lippincott Williams & Wilkins. 2007. pp. ... Disease, such as sinus venosis and atrial defects.[8][9]. *SA node dysfunction, (1st degree block) which can cause the rate of ...
PACs can trigger a more serious arrhythmia such as atrial flutter or atrial fibrillation.[7] In otherwise healthy people, PACs ... Premature atrial contractions (PACs), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a ... Often, hypertension goes hand in hand with various atrial fibrillations including premature atrial contractions (PACs).[5] ... "Impact of premature atrial contractions in atrial fibrillation". Pacing and clinical electrophysiology: PACE. 27 (4): 447-452. ...
Type I atrial flutter, also known as common atrial flutter or typical atrial flutter, has an atrial rate of 240 to 340 beats/ ... Type I flutter is further divided into two subtypes, known as counterclockwise atrial flutter and clockwise atrial flutter ... Counterclockwise atrial flutter (known as cephalad-directed atrial flutter) is more commonly seen. The flutter waves in this ... Flutter waves may not be evident on an ECG in atypical forms of atrial flutter. Individual flutter waves may be symmetrical, ...
WebMD provides a comprehensive look at the causes, symptoms, diagnosis, and treatment of atrial flutter and atrial fibrillation ... Atrial flutter is an abnormality in the beating of the heart. ... Atrial Flutter Atrial Flutter - Atrial Flutter * What Is Atrial ... Are There Types of Atrial Flutter?. Paroxysmal atrial flutter can come and go. An episode of atrial flutter usually lasts hours ... eMedicineHealth: "Atrial Flutter.". British Heart Foundation: "Whats the difference between atrial flutter and atrial ...
I just want to connect with someone who suffers from Atrial Flutter as its causing me a great deal of anxiety. I have had it ... I just want to connect with someone who suffers from Atrial Flutter as its causing me a great deal of anxiety. I have had it ... but Ill bet hell say exercise will help keep the flutter from happening and being a couch potato will just weaken you. ... for many years and in the year 2000 had an atrial myxoma removed from my heart. I recovered but the palpitations continued and ...
... and signs of atrial flutter and the medications used in treatment. Atrial flutter symptoms include a fluttering feeling in the ... Main Article on Atrial Flutter Symptoms and Signs. * Atrial Flutter. Atrial flutter is a problem with the atria of the heart. ... Causes of atrial flutter. Atrial flutter is caused by an abnormality in the electrical pacemaker in the heart atrium that ... Atrial Fibrillation (AFib): Tips for Living with Atrial Fibrillation. What is atrial fibrillation? Learn how to making living ...
Atrial fibrillation or flutter is a common type of abnormal heartbeat. The heart rhythm is fast and most often irregular. ... An ECG (a test that records the electrical activity of the heart) may show atrial fibrillation or atrial flutter. ... In atrial fibrillation or flutter, the heart rate may be 100 to 175 beats per minute. Blood pressure may be normal or low. ... Atrial fibrillation or flutter is a common type of abnormal heartbeat. The heart rhythm is fast and most often irregular. ...
Atrial Flutter & Atrial Tachycardia. Typical atrial flutter results from a single "short-circuit" in the right atrium. This ... Atrial Flutter & Atrial Tachycardia. An arrhythmia is an abnormality in the timing or pattern of the heartbeat. Arrhythmias may ... Like atrial fibrillation, atrial flutter occurs most commonly in elderly patients and those with other types of heart disease. ... Less commonly, a patient may have atypical atrial flutter which results from a short circuit in an unusual location like the ...
The term was originally applied to adults with regular atrial depolarizations at a rate of 260-340 beats per minute (bpm). ... Atrial flutter is an electrocardiographic descriptor used both specifically and nonspecifically to describe various atrial ... Pediatric Atrial Flutter) and Pediatric Atrial Flutter What to Read Next on Medscape. Related Conditions and Diseases. * Atrial ... Rhythm strip depicting lead II of a patient with atrial flutter with an atrial rate of 300 beats per minute (bpm). ...
Atrial flutter is a relatively common supraventricular arrhythmia that can cause unacceptable symptoms and can promote atrial ... Atrial fibrillation and atrial flutter and Overview of atrial flutter.). The discussion in this topic pertains primarily to ... See Overview of atrial flutter, section on Etiology and risk factors and Restoration of sinus rhythm in atrial flutter ... Incidence of atrial fibrillation post-cavotricuspid isthmus ablation in patients with typical atrial flutter: left-atrial size ...
In the most common form of atrial flutter (type I atrial flutter), electrocardiography (ECG) demonstrates a negative sawtooth ... Atrial flutter is a cardiac arrhythmia characterized by atrial rates of 240-400 beats/min, usually with some degree of ... Atrial Flutter) and Atrial Flutter What to Read Next on Medscape. Related Conditions and Diseases. * Atrial Fibrillation ... and some patients have both atrial flutter and atrial fibrillation. However, the underlying mechanism of atrial flutter makes ...
atrial flutter An atrial flutter is a very rapid beating of the hearts upper chambers, or atria. It typically is not a stable ... Atrial flutter occurs most often in people with heart diseases such as pericarditis, coronary artery disease and cardiomyopathy ... rhythm and may lead to atrial fibrillation. ...
Atrial Flutter. What is atrial flutter?. Atrial flutter is one of the more common abnormal heart rhythms (arrhythmias). It ... Who is at risk for atrial flutter?. You are more likely to have atrial flutter if any of these apply to you:. *Age. The older ... Over time, atrial flutter can weaken your heart muscle. This can lead to heart failure. Atrial flutter is often linked to a ... How is atrial flutter diagnosed?. To diagnose atrial flutter, your doctor will want to record your heart rhythm. This may ...
Typical AFl uses the narrow isthmus of right atrial tissue between the tricuspid valve annulus and the inferior vena cava ori ... Atrial flutter (AFl) is an arrhythmia resulting from reentry in a macroreentrant circuit, most commonly in the right atrium. ... Atrial flutter (AFl) is an arrhythmia resulting from reentry in a macroreentrant circuit, most commonly in the right atrium. ... Typical AFl uses the narrow isthmus of right atrial tissue between the tricuspid valve annulus and the inferior vena cava ...
Atrial flutter Open pop-up dialog box Close Atrial flutter. Atrial flutter. Atrial flutter is a type of heart rhythm disorder ... Atrial flutter is similar to atrial fibrillation, a common disorder that causes the heart to beat in abnormal patterns. People ... Atrial fibrillation, atrial flutter, and atrial tachycardia. In: Hursts the Heart. 14th ed. McGraw Hill; 2017. https:// ... Sometimes you may have episodes of both atrial flutter and atrial fibrillation. ...
He also said that if i took an extended episode of flutter, eg if my heart went into rapid rythymn for a long period of time, i ... I definitely understand what youre saying, as these flutters can overtake your life. There is one thing here I need to mention ...
... are two types of atrial tachycardia. Both of these conditions involve the hearts electrical activity, but they are not the ... What is atrial flutter, and what is atrial fibrillation (definitions)?. *Are atrial flutter, atrial tachycardia, and atrial ... What is atrial flutter, and what is atrial fibrillation (definitions)?. *Are atrial flutter, atrial tachycardia, and atrial ... home / heart health center / heart a-z list / atrial flutter vs atrial fibrillation center / atrial flutter vs. atrial ...
When it exceeds 95 I (not always)go into fib or flutter. I have a long history of fib/flutter and am in sinus rythm mo... ... My atrial flutter trigger seems to be when I excersize and increase my heart rate. ... atrial fib/flutter cardio excersize orrisdarl My atrial flutter trigger seems to be when I excersize and increase my heart rate ... When it exceeds 95 I (not always)go into fib or flutter. I have a long history of fib/flutter and am in sinus rythm most of the ...
... atrial flutter. Had catheter ablation performed. Doc could not quite reproduce flutter during electric study. So he performed ... Cold drinks and atrial flutter hh1224 38yr old male diagnosed by Cardiologist with classic atrial flutter. Had catheter ... Cold drinks and atrial flutter. 38yr old male diagnosed by Cardiologist with classic atrial flutter. Had catheter ablation ... I immediately began feeling a fluttering in my chest. I got it checked out and it turned out to be atrial flutter. I went to ...
Atrial Flutter. Atrial Flutter. - See: A. Fib - Discussion: - atrial flutter may be assoc w/ sick sinus syndrome, hypoxia, ... orginates in a single atrial ectopic focus; - flutter waves occur in rapid succession & are identical; - flutter waves have " ... Cardioversion may require less than 50 Joules, but atrial flutter often converts to atrial fibrillation w/ low energy ... these agents are not useful in the management of new onset atrial fib and flutter, because they may increase rate of ...
Mitral valve closure in atrial flutter.. M A Greenberg, L S Herman, M V Cohen ... Thus, atrial flutter independent of any other cause of abnormal hemodynamics may produce early mitral valve closure. The ... 12 patients who had atrial flutter without clinical, echocardiographic or angiographic evidence of aortic insufficiency were ... In patients with high-grade atrioventricular (AV) block, the mitral valve opened and closed with each flutter wave. Of seven ...
During atrial fibrillation irregular signals within the upper chambers of your heart cause this area to expand and contract ... Atrial Fibrillation/Flutter Atrial fibrillation (sometimes called flutter) is the most common heart rhythm disturbance ( ... Left atrial appendage occlusion. Left atrial appendage occlusion aims to prevent blood clot formation in patients suffering ... During atrial fibrillation irregular signals within the upper chambers of your heart (called the atria) cause the area to ...
Emergent Management of Atrial Flutter Q&A What is the role of monitoring in the treatment of atrial flutter?. Updated: Nov 09, ... Twelve-lead ECG of type I atrial flutter. Note negative sawtooth pattern of flutter waves in leads II, III, and aVF. ... encoded search term (What is the role of monitoring in the treatment of atrial flutter?) and What is the role of monitoring in ... the treatment of atrial flutter? What to Read Next on Medscape. Related Conditions and Diseases. * Atrial Fibrillation ...
When atrial flutter is conducted to the ventricle in a 1:1 fashion, the electrocardiogram may resemble ve... more ... Atrial flutter must be differentiated from atrial fibrillation and chaotic atrial tachycardia. ... Atrial flutter must be differentiated from atrial fibrillation and chaotic atrial tachycardia. When atrial flutter is conducted ... Go to Atrial Flutter and Emergent Management of Atrial Flutter for complete information on these topics. ...
Atrial Fibrillation. Atrial Flutter. Arrhythmias, Cardiac. Heart Diseases. Cardiovascular Diseases. Pathologic Processes. ... Background: Atrial fibrillation and atrial flutter (AF) are common cardiac arrhythmias that confer a substantial stroke burden ... PREdicting Atrial Fibrillation or Flutter (PREDATE-AF). This study is ongoing, but not recruiting participants. ... PREdicting Determinants of Atrial Fibrillation or Flutter for Therapy Elucidation in Patients at Risk for Thromboembolic Events ...
... are two types of atrial tachycardia. Both of these conditions involve the hearts electrical activity, but they are not the ... Atrial flutter ECG. Atrial flutter is a health condition that causes the atria of the heart to have a conduction or electrical ... Atrial flutter, atrial fibrillation (AFib), and atrial tachycardia are not the same things. However, all three terms have in ... Atrial fibrillation is another type of atrial tachycardia that is closely related to atrial flutter. However, the arrhythmia ...
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Atrial flutter and atrial fibrillation (AFib) are two types of abnormal heart rhythm. Learn the difference, and how each one is ... Atrial Flutter vs. Atrial Fibrillation. Articles OnAtrial Flutter. Atrial Flutter Atrial Flutter - Atrial Flutter vs. Atrial ... Harvard Medical School: "Ask the doctor: Atrial fibrillation vs. atrial flutter.". Heart Rhythm Society: "Atrial Flutter," " ... Living With AFib, Atrial Flutter, or Both. An irregular heart rhythm like AFib or atrial flutter can affect how well you can ...
... approach in designing clinical studies for catheter ablation devices for the treatment of atrial flutter. ... atrial flutter relied on clinical data from single-arm trials because no devices were approved for treatment of atrial flutter ... Clinical Study Designs for Catheter Ablation Devices for Treatment of Atrial Flutter Guidance for Industry and FDA Staff August ... Clinical Study Designs for Catheter Ablation Devices for Treatment of Atrial Flutter ...
Incidence of an atrial-fibrillation or atrial flutter related adverse event at 5 days from the index ED visit. [ Time Frame: 5 ... Incidence of an Atrial fibrillation or atrial flutter related adverse event within 30 days of index ED visit [ Time Frame: 30 ... Atrial Fibrillation. Atrial Flutter. Arrhythmias, Cardiac. Heart Diseases. Cardiovascular Diseases. Pathologic Processes. ... Atrial Fibrillation/Flutter Outcome Risk Determination (AFFORD). This study has been completed. ...
Extrapolating from mapping studies of the onset of atrial flutter in the canine pericarditis model, we suggest that a ... Rather, it starts after a transitional rhythm that is usually atrial fibrillation. ... Type I atrial flutter does not start immediately after a premature atrial beat. ... In 21 episodes, the transitional rhythm was atrial fibrillation; in 3 episodes it was type II atrial flutter that appeared to ...
This is because atrial flutter in itself is not life threatening, explains the Heart Rhythm... ... The prognosis for atrial flutter is generally positive if the patient seeks treatment, according to WebMD. ... What Does It Mean When Your Heart Flutters?. A: Atrial flutter is a type of heart arrhythmia, which is an abnormal beating of ... If atrial flutter affects a person who has no heart disease, the prognosis is generally quite good, notes WebMD. If the patient ...
  • Atrial flutter is closely related to AFib, another arrhythmia . (webmd.com)
  • Atrial flutter is a type of abnormal heartbeat or arrhythmia . (medicinenet.com)
  • Atrial flutter is a relatively common supraventricular arrhythmia that can cause unacceptable symptoms and can promote atrial thrombus formation with the potential for systemic embolization. (uptodate.com)
  • Atrial flutter is a cardiac arrhythmia characterized by atrial rates of 240-400 beats/min and some degree of atrioventricular (AV) node conduction block. (medscape.com)
  • Atrial flutter (AFl) is an arrhythmia resulting from reentry in a macroreentrant circuit, most commonly in the right atrium. (biomedsearch.com)
  • Atrial flutter is a type of heart rhythm disorder ( arrhythmia ) caused by problems in your heart's electrical system. (mayoclinic.org)
  • Atrial flutter is a type of atrial tachycardia that results in an arrhythmia (rhythm disorder or not a normal rhythm) where the atria of the heart beat too quickly in a fast, usually regular, rhythm. (medicinenet.com)
  • Atrial tachycardia's are also termed supraventricular tachycardia's and are a type of cardiac arrhythmia that usually result in a fast heartbeat, even at rest. (medicinenet.com)
  • Atrial fibrillation (sometimes called flutter) is the most common heart rhythm disturbance (arrhythmia) and affects up to 500,000 people in the UK. (nuffieldhealth.com)
  • 5.9% of those over 65 years of age and 9% of those over 80 years are diagnosed with the arrhythmia.25 The lifetime risk for development of Atrial Fibrillation is estimated to be 1 in 4 for men and women forty years of age and older.26 The proper management of patients with AF is critical due to the well-documented association with heart failure and stroke.2-6, 11, 27. (clinicaltrials.gov)
  • This condition could also lead to a different type of arrhythmia known as atrial fibrillation. (reference.com)
  • Atrial flutter is a type of heart arrhythmia, which is an abnormal beating of the heart, according to WebMD. (reference.com)
  • Biomarkers and arrhythmia recurrence following radiofrequency ablation of atrial fibrillation. (annals.org)
  • Obstructive sleep apnea in patients with typical atrial flutter: prevalence and impact on arrhythmia control outcome. (rti.org)
  • Alternatively, atrial flutter radiofrequency ablation can cure this arrhythmia. (medmovie.com)
  • Atrial (AY-tree-ul) flutter is an abnormal heart rhythm ( arrhythmia ) that causes the heart to beat too quickly. (akronchildrens.org)
  • Atrial flutter is similar to another type of arrhythmia called atrial fibrillation (AFib). (utah.edu)
  • Atypical atrial flutter (AFlut) is a reentrant arrhythmia which patients frequently develop after ablation for atrial fibrillation (AF). (frontiersin.org)
  • Atrial fibrillation (AF) is the most common arrhythmia requiring therapy and is associated with significant morbidity and mortality. (oncologynurseadvisor.com)
  • Atrial flutter is a cardiac arrhythmia that typically causes tachycardia (a fast heart rate) and palpitations , and that can increase a person's risk of a stroke. (verywellhealth.com)
  • It is related in many ways to the more well-known arrhythmia, atrial fibrillation . (verywellhealth.com)
  • Because the symptoms it produces can be intolerable, atrial flutter would be a significant arrhythmia even if all it did was cause uncomfortable symptoms. (verywellhealth.com)
  • But the biggest problem with atrial flutter is that, as is the case with atrial fibrillation, this arrhythmia tends to cause thrombus formation (blood clots) in the atria. (verywellhealth.com)
  • Furthermore, atrial flutter often tends to be a "bridge arrhythmia" to atrial fibrillation. (verywellhealth.com)
  • While anyone can develop atrial flutter, it is not a common arrhythmia. (verywellhealth.com)
  • It merely requires capturing the arrhythmia on an ECG , and looking for what are called "flutter waves. (verywellhealth.com)
  • Atrial fibrillation (AF) is the most common arrhythmia in clinical practice with a prevalence reaching 5% in patients older than 65 years and an incidence that increases progressively with. (bioportfolio.com)
  • A 70-year-old male with a history of hypertension and remote benign cerebral tumor was referred to the Winthrop Pacemaker-Arrhythmia Center for ablation of paroxysmal atrial flutter that had been documented on a 12-lead electrocardiogram. (eplabdigest.com)
  • It is initiated or induced by a burst of atrial arrhythmia. (drjohnm.org)
  • Procainamide (5-10 mg/kg i.v.) prolonged the cycle length of atrial flutter from 144 +/- 17 to 190 +/- 24 msec (p less than 0.05) and then terminated the arrhythmia in all studies. (ahajournals.org)
  • CONCLUSIONS: Online ablation of typical atrial flutter performed at the time of the clinical presentation of the arrhythmia, was shown to be comparable in terms of procedural safety and clinical efficacy in the short and long term compared to an elective ablation strategy. (minervamedica.it)
  • The atypical atrial flutter is independent of the CTI, and the origin of the arrhythmia can be in the right atrium or the left atrium. (statpearls.com)
  • Atrial flutter is the second most common cardiac arrhythmia after atrial fibrillation. (statpearls.com)
  • What Is Your Life Expectancy After Being Diagnosed With Atrial Fibrillation? (reference.com)
  • Atrial flutter is often linked to a similar heart rhythm called atrial fibrillation. (uhhospitals.org)
  • See 'ECG tutorial: Atrial and atrioventricular nodal (supraventricular) arrhythmias', section on 'Atrial fibrillation and atrial flutter' and 'Overview of atrial flutter' . (uptodate.com)
  • Atrial flutter is one of the more common abnormal heart rhythms (arrhythmias). (uhhospitals.org)
  • Low energy biphasic waveform cardioversion of atrial arrhythmias in pediatric patients and young adults. (medscape.com)
  • Background: Atrial fibrillation and atrial flutter (AF) are common cardiac arrhythmias that confer a substantial stroke burden largely because the vast majority of AF is asymptomatic and identified after a stroke has occurred. (clinicaltrials.gov)
  • At 1 year of follow-up, 77% were free of atrial tachycardia or atrial flutter and 61% were free of all atrial arrhythmias. (springer.com)
  • has announced Health Canada approval of the Blazer Open-Irrigated Catheter, the company's latest radiofrequency ablation (RFA) catheter designed to treat a variety of arrhythmias such as atrial fibrillation, atrial flutter , ventricular tachycardia and other supraventricular tachycardias. (thefreedictionary.com)
  • This study will test the ability of computer algorithms to predict successful ablation therapy for atrial arrhythmias. (centerwatch.com)
  • Atrial tachycardias and reentrant arrhythmias can sometimes result in an irregular ventricular response mimicking atrial fibrillation. (oncologynurseadvisor.com)
  • Like most reentrant arrhythmias, episodes of atrial flutter tend to come and go quite suddenly and unexpectedly. (verywellhealth.com)
  • 3-9 Of these, only one was related to RF ablation of atrial flutter.4 In the Multicentre European Radiofrequency Survey of radiofrequency catheter ablation of arrhythmias, 2 arterial thrombosis was extremely rare following this procedure, on the order of 0.1-0.7%, and most of these events involved ablation of accessory pathways or ventricular tachycardia. (eplabdigest.com)
  • Supraventricular arrhythmias are a diverse group of atrial arrhythmias. (statpearls.com)
  • Atrial fibrillation and atrial flutter are the most common of these atrial arrhythmias, and the other less common supraventricular arrhythmias are atrial tachycardias, atrioventricular reentrant tachycardia, atrioventricular nodal tachycardia, and others. (statpearls.com)
  • Atrial flutter is one of the most common arrhythmias and is characterized by an abnormal cardiac rhythm that is fast with an atrial rate of 300beats/min and a ventricular rate that can be fixed or be variable that can cause palpitations, fatigue, syncope, and embolic phenomenon. (statpearls.com)
  • This also protects the ventricles from excessively fast rate response to atrial arrhythmias (see below). (wikipedia.org)
  • The pathogenesis of typical atrial flutter makes it highly amendable to curative therapy with radiofrequency (RF) catheter ablation, though atypical flutters may also be cured with RF ablation. (uptodate.com)
  • This is a non-surgical, catheter-based procedure that can often cure atrial flutter. (uhhospitals.org)
  • Atrial flutter can be treated more definitively with a technique known as catheter ablation. (wikipedia.org)
  • This involves the insertion of a catheter through a vein in the groin which is followed up to the heart and is used to identify and interrupt the electrical circuit causing the atrial flutter (by creating a small burn and scar). (wikipedia.org)
  • Sassone B, Leone O, Martinelli GN, Di Pasquale G. Acute myocardial infarction after radiofrequency catheter ablation of typical atrial flutter: histopathological findings and etiopathogenetic hypothesis. (medscape.com)
  • Characteristics of cavotricuspid isthmus ablation for atrial flutter guided by novel parameters using a contact force catheter. (medscape.com)
  • Biviano A, Garan H, Hickey K, Whang W, Dizon J, Rosenbaum M. Atrial flutter catheter ablation in adult patients with repaired tetralogy of Fallot: mechanisms and outcomes of percutaneous catheter ablation in a consecutive series. (medscape.com)
  • This guidance addresses the use of a randomized clinical trial (RCT) approach in designing clinical studies for catheter ablation devices for the treatment of atrial flutter. (fda.gov)
  • The catheter is equipped with an electrode which scars the electrical pathways contributing to atrial flutter, and the heart returns to its normal function. (medmovie.com)
  • In the study, radiofrequency catheter-based pulmonary vein isolation was associated with a 44% relative risk reduction, compared with antiarrhythmics drugs, in the primary end point of time to first recurrence of symptomatic or asymptomatic atrial fibrillation (AF), atrial tachyarrhythmia (AT), or atrial flutter (AFL), reported Dr. (thefreedictionary.com)
  • The aim was to determine whether the presence of catheter / tissue interaction information, such as ECI and CF, reduce time to achieve bidirectional cavotricuspid isthmus block during atrial flutter (AFL) ablation. (plos.org)
  • US-based medical device maker Imricor Medical Systems has enrolled the first patients in a clinical study to evaluate its Vision-MR Ablation Catheter for the treatment of atrial flutter under real-time MRI guidance, the company said on Wednesday. (thefreedictionary.com)
  • Current guidelines recommend radiofrequency catheter ablation of the cavotricuspid isthmus as treatment for symptomatic/drug-refractory atrial flutter, in spite of the fact that recurrence. (bioportfolio.com)
  • Radiofrequency catheter ablation of the isthmus between the tricuspid annulus and the inferior vena cava has become the first line of treatment for recurrent atrial flutter (AFL). (bmj.com)
  • Using a 20-pole isthmus mapping catheter, a clockwise typical atrial flutter pattern was observed spontaneously. (eplabdigest.com)
  • Transient myocardial ischemia was reported in 1 of 141 patients who underwent catheter ablation of atrial tachycardia or atrial flutter. (eplabdigest.com)
  • A transvenous catheter for the cardioversion of atrial fibrillation or atrial flutter and/or the stimulation of the heart's activity. (google.com)
  • 1992). Radiofrequency catheter ablation for the treatment of atrial flutter. (springer.com)
  • Impact of cavotricuspid isthmus morphology in CRYO versus radiofrequency ablation of typical atrial flutter. (medscape.com)
  • BACKGROUND: The clinical yield of cavotricuspid isthmus (CTI) radiofrequency ablation of atrial flutter (AF) is limited by a high incidence of atrial fibrillation (AFib) in the long term. (rti.org)
  • Typical atrial flutter (anti-clockwise cavotricuspid isthmus-dependent atrial flutter) is a macro-reentrant atrial tachycardia with atrial rates usually above 250 bpm up to 320 bpm. (bmj.com)
  • This is the second reported case of right coronary artery (RCA) occlusion secondary to radiofrequency ablation of atrial flutter at the cavotricuspid isthmus. (eplabdigest.com)
  • The cavotricuspid isthmus (CTI) is crucial in the ablation of typical atrial flutter (AFL), and consequently the CTI anatomy and/or its relation to resistant ablation cases have been widely described in human angiographic studies. (springer.com)
  • INTRODUCTION: Radiofrequency ablation of the cavotricuspid isthmus is currently the first-choice treatment of typical atrial flutter and usually it is performed electively. (minervamedica.it)
  • The irregular heart rhythm that occurs with atrial fibrillation makes blood clots more likely to form. (medlineplus.gov)
  • Intravenous procainamide has been used with variable success to effect acute conversion of atrial flutter to sinus rhythm. (medscape.com)
  • Restoration and maintenance of sinus rhythm improves symptoms and decreases the risk of embolization if atrial flutter recurrence does not occur. (uptodate.com)
  • Issues related to the indications and therapeutic options for the maintenance of sinus rhythm in atrial flutter will be reviewed here. (uptodate.com)
  • Causes of atrial flutter, rate control therapy, the restoration of sinus rhythm after cardioversion, and the role of anticoagulation in atrial flutter are discussed separately. (uptodate.com)
  • See 'Overview of atrial flutter', section on 'Etiology and risk factors' and 'Restoration of sinus rhythm in atrial flutter' and 'Embolic risk and the role of anticoagulation in atrial flutter' and 'Control of ventricular rate in atrial flutter' . (uptodate.com)
  • We attempt to keep most patients with recurrent atrial flutter in sinus rhythm to decrease symptoms, unlike atrial fibrillation (AF) in which rhythm control and rate control are reasonable strategies. (uptodate.com)
  • See 'Rhythm control versus rate control in atrial fibrillation', section on 'Choice of therapy' . (uptodate.com)
  • It typically is not a stable rhythm and may lead to atrial fibrillation. (heart.org)
  • This new circuit takes over the heart rhythm and causes the abnormal fluttering. (uhhospitals.org)
  • To diagnose atrial flutter, your doctor will want to record your heart rhythm. (uhhospitals.org)
  • The longer the recording time of heart rhythm, the higher the chance atrial flutter can be recorded. (uhhospitals.org)
  • Atrial flutter (AFL) is a common abnormal heart rhythm that starts in the atrial chambers of the heart. (wikipedia.org)
  • Atrial flutter is characterized by a sudden-onset (usually) regular abnormal heart rhythm on an electrocardiogram (ECG) in which the heart rate is fast. (wikipedia.org)
  • It is typically not a stable rhythm, and often degenerates into atrial fibrillation (AF). (wikipedia.org)
  • Similar to the abnormal heart rhythm atrial fibrillation, atrial flutter also leads to poor contraction of the atrial chambers of the heart. (wikipedia.org)
  • If the affected person is having chest pain, has lost consciousness, or has low blood pressure (unstable atrial flutter), then an urgent electrical shock to the heart to restore a normal heart rhythm is necessary. (wikipedia.org)
  • Medications used to restore a normal heart rhythm (antiarrhythmics) such as ibutilide effectively control atrial flutter about 80% of the time when they are started but atrial flutter recurs at a high rate (70-90% of the time) despite continued use. (wikipedia.org)
  • citation needed] Although often regarded as a relatively benign heart rhythm problem, atrial flutter shares the same complications as the related condition atrial fibrillation. (wikipedia.org)
  • Atrial flutter is a type of heart rhythm disorder in which the heart's upper chambers (atria) beat too quickly. (mayoclinic.org)
  • People with atrial flutter have a heart rhythm that's more organized and less chaotic than that of atrial fibrillation. (mayoclinic.org)
  • Atrial tachycardia is a general term that indicates a cardiac condition where the rate of contraction of the heart's atria is fast and not normal, but does not describe the type of heart rhythm other than fast. (medicinenet.com)
  • 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on practice guidelines and the Heart Rhythm Society. (medscape.com)
  • In addition, flutter waves also tend to revert back to sinus rhythm spontaneously more often in some patients. (rxlist.com)
  • Twenty-seven episodes of the spontaneous onset of type I atrial flutter from sinus rhythm were studied in these 16 patients by recording bipolar atrial electrograms simultaneously with at least one electrocardiographic lead during each episode. (nih.gov)
  • In all 27 episodes, the onset of type I atrial flutter was through a transitional rhythm of variable duration (mean 9.3 s) precipitated by a premature atrial beat. (nih.gov)
  • Rather, it starts after a transitional rhythm that is usually atrial fibrillation. (nih.gov)
  • Extrapolating from mapping studies of the onset of atrial flutter in the canine pericarditis model, we suggest that a transitional rhythm is required for the initiation of type I atrial flutter because during that rhythm, the requisites for development of the atrial flutter reentry circuit evolve. (nih.gov)
  • This is because atrial flutter in itself is not life threatening, explains the Heart Rhythm Society. (reference.com)
  • If left untreated, the complications from atrial flutter could be life threatening, according to the Heart Rhythm Society. (reference.com)
  • When left untreated, atrial flutter could weaken the heart muscles over time and result in a condition known as cardiomyopathy, reports the Heart Rhythm Society. (reference.com)
  • Atrial flutter is a common heart rhythm disorder. (medmovie.com)
  • In atrial flutter, an abnormal electrical circuit spins in the right atrium, completely disrupting and speeding up the normal rhythm. (medmovie.com)
  • However, the atrial rhythm is more organized and less chaotic in atrial flutter than in atrial fibrillation. (medmovie.com)
  • Atrial flutter refers to a heart rhythm disorder which originates in the upper chambers of the heart - the atria. (ndtv.com)
  • Multaq(R) is an anti-arrhythmic indicated to reduce the risk of cardiovascular hospitalization in patients with paroxysmal or persistent atrial fibrillation (AF) or atrial flutter (AFL), with a recent episode of AF/AFL and associated cardiovascular risk factors, who are in sinus rhythm or who will be cardioverted. (europapress.es)
  • Should antiarrhythmic medications be used to restore sinus rhythm for patients with atrial fibrillation? (aafp.org)
  • There is no evidence that rhythm control in older patients with atrial fibrillation is more effective than rate control for improving patient-oriented outcomes. (aafp.org)
  • Whereas rate-control strategies for managing atrial fibrillation advocate medically slowing ventricular response to the fibrillating atrium and using anticoagulation to reduce stroke risk, rhythm-control strategies involve medical or electrical conversion to sinus rhythm to improve hemodynamics and symptoms and, theoretically, reduce stroke risk. (aafp.org)
  • Although concern has been raised that the use of antiarrhythmic medications for atrial fibrillation will increase the risk of malignant dysrhythmias, these were uncommon with rate-control and rhythm-control strategies in the two studies 2 , 3 reviewed. (aafp.org)
  • Results of one of the studies 2 suggested there may be an increased mortality risk with rhythm control in patients without heart failure, but the numbers of patients with heart failure were low, and definitive data on management of atrial fibrillation in the setting of heart failure are lacking. (aafp.org)
  • There are two approaches to the management of atrial fibrillation: controlling the ventricular rate or converting to sinus rhythm in the expectation that this would abolish its adverse effects. (aafp.org)
  • Atrial flutter is a condition that affects the rhythm of the heart. (augustafreepress.com)
  • The IntellaNav XP and the IntellaNav MiFi XP navigation-enabled ablation catheters made to map and ablate, were sanctioned to treat Type I atrial flutter , an abnormal rhythm of the upper chambers of the heart. (thefreedictionary.com)
  • How long should a patient whose cardiac chambers show no evidence of enlargement remain on antiarrhythmic and anticoagulation medications after conversion from atrial fibrillation flutter to sinus rhythm? (clinicaladvisor.com)
  • Atrial fibrillation is the most common rhythm disorder observed in clinical practice. (bmj.com)
  • This rhythm is commonly associated with atrial fibrillation, into which it may degenerate. (bmj.com)
  • This rhythm is closely related to atrial fibrillation. (bmj.com)
  • Medication may be given to slow the rapid heart rate and change the atrial flutter to a normal rhythm. (rmchealth.com)
  • Medication may be used to convert atrial flutter to a normal rhythm, slow down the heart rate or prevent recurrences. (ucsfbenioffchildrens.org)
  • 2006) ACC/AHA/ESC 2006 Guidelines for the Management of Patients with Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 Guidelines for the Management of Patients with Atrial Fibrillation): Developed in Collaboration with the European Heart Rhythm Association and the Heart Rhythm Society. (scirp.org)
  • report in their publication entitled "A Randomized Comparison of External and Internal Cardioversion of Chronic Atrial Fibrillation" on the results of external and internal cardioversion and come to the conclusion that internal cardioversion is more effective for the restoration of the sinus rhythm without involving any increased risks. (google.com)
  • 1. Atrial flutter is defined as a rapid but organized rhythm (tachycardia) in the top chamber of the heart (either from the right or left atrium) . (drjohnm.org)
  • In certain cases, atrial fibrillation may need emergency treatment to get the heart back into normal rhythm. (drugster.info)
  • Bonke FIM, Bouman LN, van Rijn HE: Change of cardiac rhythm in the rabbit after an atrial premature beat. (semanticscholar.org)
  • Signs and symptoms in patients with atrial flutter typically reflect decreased cardiac output as a result of the rapid ventricular rate. (medscape.com)
  • The purpose of this study is to determine, through continuous monitoring with a cardiac monitoring device placed under the skin, the incidence of atrial fibrillation or flutter (AF). (clinicaltrials.gov)
  • Many of these atrial flutters occur in patients who have undergone previous medical procedures such as valvular or congenital cardiac surgery involving atriotomy, surgical Maze operations, or pulmonary vein isolation procedures. (springer.com)
  • Furthermore, diminished atrial filling of the ventricles and irregular ventricular contraction can reduce cardiac output, leading to palpitations, dyspnea, and dizziness. (aafp.org)
  • This includes ablation for atrial fibrillation and atrial flutter, pacemakers, defibrillators for prevention of sudden cardiac death and resynchronization devices for treatment of congestive heart failure. (augustafreepress.com)
  • The medical literature in general suggests that among fetuses with cardiac polyarrhythmias 20%-33% will have atrial flutter , and 60%-70% will have supraventricular tachycardia. (thefreedictionary.com)
  • If a person with atrial flutter also has coronary artery disease , the rapid heart rate can place enough stress on the cardiac muscle to cause angina . (verywellhealth.com)
  • The purpose of this study is to determine if preforming a posterior left pericardiotomy prevents atrial fibrillation after cardiac surgery. (bioportfolio.com)
  • It can evaluate right and left atrial size, as well as the size and function of the right and left ventricles, and this information facilitates diagnosis of valvular heart disease, left ventricular hypertrophy (LVH), and pericardial disease. (medscape.com)
  • Relationship of the following variables with the occurrence of AFib during follow-up (12 months) was investigated: CPAP initiation, hypertension, BMI, underlying structural heart disease, left atrial diameter, and AFib documentation prior to ablation. (rti.org)
  • Most AAF were left atrial macroreentry. (springer.com)
  • Atrial Flutter Has Less Left Atrial Spontaneous Contrast and Higher Left Atrial Appendage Emptying Velocity Compared with Atrial Fibrillation. (bioportfolio.com)
  • Atrial flutter and embolic risk: The relationship between atrial flutter cycle length and left atrial appendage function. (bioportfolio.com)
  • AFL cycle length (AFL-CL) may be related to reduced left atrial appendage (LAA) function. (bioportfolio.com)
  • Association of Thromboembolic Risk Score with Left Atrial Thrombus and Spontaneous Echocardiographic Contrast in Non-Anticoagulated Nonvalvular Atrial Fibrillation Patients. (bioportfolio.com)
  • The aim of the study was to examine the association of CHADS2/CHA2DS2-VASc scores with left atrial thrombus (LAT) and spontaneous echocardiographic contrast (SEC) in non-anticoagulated nonvalvular atr. (bioportfolio.com)
  • What is the most likely diagnosis?Mitral stenosis.Pericardial cyst.Left atrial appendage aneurysm.Left atrial myxoma.Atrial septal defect. (bioportfolio.com)
  • The aim of the study LA-EU-01 was to examine the safety and the feasibility of the LAmbreTM Left Atrial Appendage Closure System in patients with non-valvular paroxymal, persistent or perm. (bioportfolio.com)
  • Objective: To compare the value of current harmonic transthoracic and transesophageal echocardiography for assessing echocardiographic markers of thromboembolic risk and identify left atrial thrombi in patients with atrial fibrillation and atrial flutter prior to cardioversion and/or overdrive stimulation. (kup.at)
  • Transesophageal echocardiography has been suggested for guiding cardioversion in patients with atrial fibrillation and atrial flutter, because of its high accuracy for identifying left atrial thrombi. (kup.at)
  • More recent studies have demonstrated that harmonic echocardiography may allow transthoracic detection of left atrial thrombi and assessment of left atrial appendage function. (kup.at)
  • 172 Patients with atrial fibrillation and/or atrial flutter who were scheduled for cardioversion and/or overdrive stimulation were examined both by harmonic transthoracic and multiplane transesophageal echocardiography by independent observers to assess left atrial chamber and appendage size and peak emptying velocities. (kup.at)
  • Harmonic transthoracic echocardiography allowed imaging of the left atrial appendage and recording of its velocities in 83 % and 74 % of cases, respectively. (kup.at)
  • Logistic regression analysis revealed that a peak left atrial appendage velocity greater than 0.25 m/s was the only independent transthoracic parameter for the exclusion of left atrial thrombi with an odds ration of 4.4 (95 % CI 1.4 to 14.5). (kup.at)
  • Modern echocardiographic systems with harmonic transthoracic echocardiography allow the identification of large left atrial appendage thrombi with a high degree of confidence. (kup.at)
  • Because the specificity of identifying left atrial appendage thrombi is very high for harmonic transthoracic echocardiography, transesophageal echocardiographic examinations may be omitted in patients with the transthoracic diagnosis of thrombi. (kup.at)
  • If transthoracic recording of left atrial appendage velocities is feasible, it may be possible to identify a thrombogenic milieu by transthoracic echocardiography prior to cardioversion. (kup.at)
  • However, such F waves are also seen in atypical atrial macro-re-entry (non-isthmus-dependent atrial flutter [NIDAFL]) ( 3,4 ), including left atrial circuits ( 5 ). (onlinejacc.org)
  • Digoxin is relatively safe for preventing rapid conduction of atrial flutter via the atrioventricular (AV) node to the ventricles, and some evidence indicates that this reduces symptomatology during flutter. (medscape.com)
  • Atrial flutter is a health condition that causes the atria of the heart to have a conduction or electrical problem that result in a re-entry loop in a regular pattern the causes the atria to beat at a rapid rate of about 240-360 beats per minute (bpm). (medicinenet.com)
  • Often, the flutter waves are not completely transferred through the AV node to the ventricular heart chambers so occasionally electrical conduction blocks occur and produce a 2:1, 3:1 or 4:1 ventricular contraction rate that is mainly regular. (medicinenet.com)
  • The most common atrial flutter occurs when the atria beat at a rate of 300 bpm and ventricular contraction rate is 150 bpm (2:1 conduction). (medicinenet.com)
  • In contrast to flutter waves, the abnormal conduction creates irregular, rapid occurring QRS waves, some of which are conducted to the heart ventricles through the AV node. (medicinenet.com)
  • What does ECG and abnormal electrical conduction of atrial fibrillation look like? (rxlist.com)
  • Macroreentry atrial flutters took varied pathways, but each had an area of slow conduction (ASC) averaging 16 ± 6 mm (range 6-29) in length. (springer.com)
  • Eleven patients were studied for ventricular tachycardia, three were studied for atrial flutter , and two were studied for conduction and sinus node function study. (thefreedictionary.com)
  • The sections on right ventricular hypertrophy, atrial flutter , intraventricular conduction delay, and the differential of ventricular tachycardia vs superventricular tachycardia with block are superbly presented. (thefreedictionary.com)
  • We build a personalized model of atrial excitation propagation considering the anatomy as well as the spatial distribution of anisotropic conduction velocity and repolarization characteristics based on a combination of a priori knowledge on the population level and information derived from measurements performed in the individual patient. (frontiersin.org)
  • We assessed the sensitivity of the flutter pathway maps with respect to conduction velocity and its anisotropy. (frontiersin.org)
  • Novel method to evaluate the conduction velocity and conducting area during isthmus-dependent atrial flutter. (biomedsearch.com)
  • OBJECTIVE: The difference of the conduction velocity (CV) around the tricuspid valve annulus between the counter-clockwise (CCW) atrial flutter and the clockwise (CW) atrial flutter has not been well clarified. (biomedsearch.com)
  • New antiarrhythmic drug strategies include more atrial selective agents, drugs similar to amiodarone but with a less toxic profile, or drugs with novel mechanisms of action, such as gap junction facilitation of conduction. (oncologynurseadvisor.com)
  • 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. (bioportfolio.com)
  • Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. (bioportfolio.com)
  • It's hard to explain, but the regularity of atrial flutter contributes to more rapid conduction to the ventricles-and this makes it harder to control the pulse rate of atrial flutter compared with AFib. (drjohnm.org)
  • Demonstration of an area of slow conduction in human atrial flutter. (springer.com)
  • Role of right atrial structures as barriers to conduction during human type 1 atrial flutter. (springer.com)
  • During atrial flutter, epicardial activation proceeded as a single wave around an arc of functional conduction block in the proximity of the atrioventricular (AV) ring or around a combined functional/anatomic obstacle, with the arc being contiguous with one of the venae cavae. (ahajournals.org)
  • The drug terminated circus movement atrial flutter without abolishing the excitable gap, and its effect on conduction seemed the major determinant of the antiarrhythmic action. (ahajournals.org)
  • a flutter can conduct at variable rates down AV node that's why it's called with variable conduction Would you like to video or text chat with me? (healthtap.com)
  • With aging and atrial dilation, occurs fibrosis of the atrial tissue and produce non-uniform anisotropic conduction through the CTI. (statpearls.com)
  • As this cycle occurs in the atrium, conduction is determined by the atrioventricular node mechanism to conduct the atrial impulse. (statpearls.com)
  • Commonly the atrioventricular conduction will be 2 to 1 with an atrial rate of 300 beats per minute with a ventricular rate of 150 beats per minute, but this can be variable depending on the underlying parasympathetic stimulus or refractoriness of the atrioventricular node. (statpearls.com)
  • This is the property of the AV node that prevents rapid conduction to the ventricle in cases of rapid atrial rhythms, such as atrial fibrillation or atrial flutter. (wikipedia.org)
  • Immediate treatment of atrial flutter centers on slowing the heart rate with medications such as beta blockers (e.g., metoprolol) or calcium channel blockers (e.g., diltiazem) if the affected person is not having chest pain, has not lost consciousness, and if their blood pressure is normal (known as stable atrial flutter). (wikipedia.org)
  • What is the role of monitoring in the treatment of atrial flutter? (medscape.com)
  • The first several premarket approval (PMA) applications approved for the treatment of atrial flutter relied on clinical data from single-arm trials because no devices were approved for treatment of atrial flutter. (fda.gov)
  • Recently approved IDE studies and PMA applications have used the option of a RCT given the availability of PMA-approved ablation catheters indicated for treatment of atrial flutter. (fda.gov)
  • With one major exception, the treatment of atrial flutter is similar to that of atrial fibrillation. (verywellhealth.com)
  • Atrial flutter results from an abnormal circuit inside the right atrium, or upper chamber of your heart. (webmd.com)
  • Heart diseases that damage the heart muscle ( cardiomyopathy ) and abnormal enlargement of the heart (hypertrophy) can also increase the risk of atrial flutter. (medicinenet.com)
  • This can prevent the abnormal electrical signals that cause atrial fibrillation or flutter from moving through your heart. (medlineplus.gov)
  • It's caused by an abnormal electrical circuit that makes the atria beat quickly and flutter instead of fully squeezing. (uhhospitals.org)
  • In atrial flutter, an abnormal electrical circuit forms in the atria. (uhhospitals.org)
  • Atrial flutter is similar to atrial fibrillation , a common disorder that causes the heart to beat in abnormal patterns. (mayoclinic.org)
  • Thus, atrial flutter independent of any other cause of abnormal hemodynamics may produce early mitral valve closure. (ahajournals.org)
  • In treating atrial flutter, it is most important to prevent a stroke and to stop abnormal electrical activity. (medmovie.com)
  • Atrial flutter is a fast abnormal beating of the heart. (lahey.org)
  • Atrial flutter is caused by the formation of extremely rapid, abnormal electrical impulses arising in the atria. (verywellhealth.com)
  • Isolated atrial flutter in the absence of abnormal heart anatomy is rare and usually is present when atrial size abnormalities have developed. (statpearls.com)
  • Typical (also called isthmus-dependent) atrial flutter utilizes a large macroreentrant pathway in the right atrium, with the left atrium following passively. (uptodate.com)
  • Objectives The aim of this study was to separate isthmus-dependent atrial flutter (IDAFL) from non-isthmus-dependent atrial flutter (NIDAFL) from the electrocardiogram (ECG) based on functional differences. (onlinejacc.org)
  • Less commonly, atrial activation can be in a clockwise fashion, and thus electrocardiographic appearance is different, one is unable to differentiate it easily from not isthmus-dependent atrial flutter. (statpearls.com)
  • Some people have no symptoms at all with atrial flutter. (webmd.com)
  • They are common and may cause a wide variety of symptoms, such as a racing, skipping or fluttering sensation (called palpitations) in your chest. (hopkinsmedicine.org)
  • What are the symptoms of atrial flutter? (uhhospitals.org)
  • citation needed] Atrial flutter is usually well tolerated initially (a high heart rate is for most people just a normal response to exercise), however, people with other underlying heart disease (such as coronary artery disease) or poor exercise tolerance may rapidly develop symptoms, such as shortness of breath, chest pain, lightheadedness or dizziness, nausea and, in some patients, nervousness and feelings of impending doom. (wikipedia.org)
  • People with atrial flutter may not have symptoms. (mayoclinic.org)
  • However, many doctors and other health care professionals consider atrial flutter to be less serious than atrial fibrillation because flutter symptoms tend to be less severe and flutter waves have a less risk of embolization (clot formation). (rxlist.com)
  • What are symptoms of atrial flutter if you have heart or lung disease? (webmd.com)
  • Alcohol and stimulants such as diet pills, cold medicines, and caffeine can contribute to symptoms of atrial flutter. (utah.edu)
  • About 30 percent of people with atrial flutter do not experience any symptoms. (utah.edu)
  • With treatment, people with atrial flutter usually experience significant improvement in their symptoms and avoid serious side effects of the condition. (utah.edu)
  • Atrial flutter does not always produce symptoms. (rmchealth.com)
  • Atrial flutter can also produce a sudden worsening of symptoms in people who have heart failure . (verywellhealth.com)
  • 3. The symptoms of atrial flutter vary widely . (drjohnm.org)
  • On the one end of the spectrum, patients with flutter may report no symptoms, while others report severe problems, like tachycardia, loss of consciousness, chest pain or a feeling of dread. (drjohnm.org)
  • Drug therapy of atrial flutter in children can be classified under the 3 broad headings of ventricular rate control, acute conversion, and chronic suppression. (medscape.com)
  • In multivariate analysis, average ventricular rate during atrial flutter was the only independent predictor of reversibility of cardiomyopathy (P=0.013). (nih.gov)
  • The most common scenario for atrial flutter occurs when the atria are at 300 bpm and the ventricular rate (pulse rate) sticks at 150 bpm. (drjohnm.org)
  • It might be an atrial rate of 240 and a ventricular rate of 120. (drjohnm.org)
  • There are multiple medications that can help reduce the incidence of paroxysmal atrial fibrillation (sotolol, dofetilide, amiodarone, etc). (medhelp.org)
  • Can paroxysmal atrial fibrillation be predicted? (physionet.org)
  • The challenge is to develop a fully automated method to predict the onset of paroxysmal atrial fibrillation/flutter (PAF), based on the ECG prior to the event. (physionet.org)
  • 68-year-old woman with paroxysmal atrial fibrillation. (bioportfolio.com)
  • Double atrial potentials in left-sided accessory pathways are associated with paroxysmal atrial fibrillation. (semanticscholar.org)
  • With the introduction of newer computer-driven mapping systems, it became clear that the vast majority of typical atrial flutters were reentrant and involved the right atrial caval-tricuspid isthmus in either a counterclockwise or clockwise rotational pattern. (springer.com)
  • Patients will be recruited prospectively from among those undergoing ablation for atrial fibrillation (AF) or atrial tachycardias (AT) which may be reentrant or focal. (centerwatch.com)
  • With atrial flutter, the reentrant circuit is a relatively large one that is usually located within the right atrium, and which usually follows a characteristic path. (verywellhealth.com)
  • By creating a blockage in a particular location within that characteristic path, the reentrant circuit can be disrupted, and the atrial flutter can no longer occur. (verywellhealth.com)
  • Flutter waves are signals appearing on the ECG that represent the electrical impulse that is spinning around and around the atrial reentrant circuit. (verywellhealth.com)
  • To evaluate the mechanisms of action of procainamide on the components of the reentrant pathway, drug-induced changes in activation patterns, effective refractory periods (ERPs), and stimulation thresholds were analyzed in nine dogs with sterile pericarditis and sustained atrial flutter. (ahajournals.org)
  • Atrial flutter is a macro-reentrant tachycardia and depending on the site of origin can be typical or atypical atrial flutter. (statpearls.com)
  • More recently, a retrospective study involving data from 21 fetuses with supraventricular tachycardia and 2 cases of atrial flutter suggests that flecainide may be effective and safe as first-line therapy for fetal supraventricular tachycardia. (medscape.com)
  • The Marshfield Epidemiological Study Area (MESA), a database that captures nearly all medical care among its 58,820 residents was used to ascertain all new cases of atrial flutter diagnosed from July 1, 1991 to June 30, 1995. (onlinejacc.org)
  • A total of 181 new cases of atrial flutter were diagnosed for an overall incidence of 88/100,000 person-years. (onlinejacc.org)
  • If our findings were applicable to the entire U.S. population, we estimate 200,000 new cases of atrial flutter in this country annually. (onlinejacc.org)
  • In typical cases of atrial flutter, the atrial are contracting at 200-300 bpm. (drjohnm.org)
  • The isthmus of tissue responsible for atrial flutter is seen anterior to the coronary sinus (CS) orifice. (medscape.com)
  • Because the circuit responsible for atrial flutter is usually well-defined, this makes atrial flutter particularly suitable for ablation therapy . (verywellhealth.com)
  • Recent technological advances have improved our understanding of the electrophysiologic substrate responsible for atrial flutter (2-8) . (onlinejacc.org)
  • To assess the efficacy and safety of pharmacological and electrical cardioversion for atrial fibrillation (AF). (cochrane.org)
  • The rapid heart rate commonly produce by atrial flutter most often leads to pronounced palpitations, dizziness , fatigue, and dyspnea (breathlessness). (verywellhealth.com)
  • Less commonly, a patient may have atypical atrial flutter which results from a short circuit in an unusual location like the left atrium or near scar tissue. (hopkinsmedicine.org)
  • The purpose of this study was to evaluate ultra high density-activation sequence mapping (UHD-ASM) for ablating atypical atrial flutters. (springer.com)
  • For 23 patients with 31 atypical atrial flutters (AAF), we created UHD-ASM. (springer.com)
  • Atypical atrial flutter is caused by scarring on the left side of the heart from prior heart surgeries, previous procedures, or heart disease. (utah.edu)
  • A supraventricular tachycardia with a ventricular heart rate of 150 beats per minute is suggestive (though not necessarily diagnostic) of atrial flutter. (wikipedia.org)
  • Administration of adenosine in the vein (intravenously) can help medical personnel differentiate between atrial flutter and other forms of supraventricular tachycardia. (wikipedia.org)
  • AFL is the second most common pathologic supraventricular tachycardia but occurs at a rate less than one-tenth of the most common supraventricular tachycardia (atrial fibrillation). (wikipedia.org)
  • Review of diagnosis, treatment, and outcome of fetal atrial flutter compared with supraventricular tachycardia. (medscape.com)
  • The inducing beats may be merely benign premature beats (PACs or APCs), a short burst of supraventricular tachycardia (SVT), or it may be that a sequence of AFib organizes into atrial flutter. (drjohnm.org)
  • They can be used on those who have recurrent atrial flutter. (rmchealth.com)
  • The FDA approval of Multaq(R) is an important milestone in the management of atrial fibrillation or atrial flutter that demonstrates the commitment of sanofi-aventis to provide patients and physicians with important new medicines in therapeutic areas with significant healthcare needs," said Christopher A. Viehbacher, Chief Executive Officer of sanofi-aventis. (europapress.es)
  • This review 1 provides further evidence in support of recent guidelines on the management of atrial fibrillation. (aafp.org)
  • See 'Overview of atrial flutter', section on 'Clinical manifestations' and 'Embolic risk and the role of anticoagulation in atrial flutter', section on 'Embolic risk' . (uptodate.com)
  • 12 patients who had atrial flutter without clinical, echocardiographic or angiographic evidence of aortic insufficiency were studied with simultaneous echo- and phonocardiograms. (ahajournals.org)
  • Clinical relevance of atrial fibrillation/flutter, stroke, pacemaker implant, and heart failure in Emery-Dreifuss muscular dystrophy: a long-term longitudinal study. (medscape.com)
  • Boston, MA -- ( SBWIRE ) -- 03/26/2013 -- GlobalData's clinical trial report, "Atrial Flutter Global Clinical Trials Review, H1, 2013" provides data on the Atrial Flutter clinical trial scenario. (sbwire.com)
  • This report provides elemental information and data relating to the clinical trials on Atrial Flutter. (sbwire.com)
  • The databook offers a preliminary coverage of disease clinical trials by their phase, trial status, prominence of the sponsors and also provides briefing pertaining to the number of trials for the key drugs for treating Atrial Flutter. (sbwire.com)
  • Atrial Flutter ongoing clinical trials report provides comprehensive analysis and trends in global Atrial Flutter disease clinical trials. (reportlinker.com)
  • The research work analyzes the ongoing Atrial Flutter clinical trial trends across countries and companies. (reportlinker.com)
  • The report focuses on drugs and therapies being evaluated for Atrial Flutter treatment in active clinical development phases including phase 1, phase 2, phase 3 and phase 4 clinical trials. (reportlinker.com)
  • Further, data is presented in user friendly manner to enable readers quick access to Atrial Flutter clinical trials. (reportlinker.com)
  • A clinical electrocardiographic study was performed on 41 patients with atrial flutter. (journals.co.za)
  • ACC/AHA/Physician Consortium 2008 clinical performance measures for adults with nonvalvular atrial fibrillation or atrial flutter. (bmj.com)
  • Comparison of Clinical Outcomes Among Patients With Atrial Fibrillation or Atrial Flutter Stratified by CHA2DS2-VASc Score. (bioportfolio.com)
  • 2) Anticoagulation with warfarin should be considered in patients with recurrent AFl, especially those over 70 years of age, and those with a history of atrial fibrillation, stroke, or structural heart disease. (biomedsearch.com)
  • These individuals are typically diagnosed with atrial flutter when they are being evaluated for another health problem, such as heart failure or stroke . (utah.edu)
  • Atrial fibrillation increases the risk of mortality and stroke. (aafp.org)
  • To assess the effects of pharmacologic cardioversion of atrial fibrillation in adults on the annual risk of stroke, peripheral embolism, and mortality. (aafp.org)
  • Untreated atrial fibrillation can lead to a heart failure and increases the risk of stroke. (spectrumhealth.org)
  • This procedure attempts to reduce the risk of blood clots from entering the bloodstream, potentially preventing a stroke in patients with atrial fibrillation. (spectrumhealth.org)
  • Stroke Risk in Atrial Fibrillation Working Group (2008) Comparison of 12 Risk Stratification Schemes to Predict Stroke in Patients with Nonvalvular Atrial Fibrillation. (scirp.org)
  • Hart, R.G.G., Benavente, O., McBride, R. and Pearce, L.A. (1999) Antithrombotic Therapy to Prevent Stroke in Patients with Atrial Fibrillation: A Meta-Analysis. (scirp.org)
  • Atrial flutter (AFL) is less common than AF but more difficult to control with drugs and is also associated with an increased risk of stroke. (oncologynurseadvisor.com)
  • So people with atrial flutter, like those with atrial fibrillation, have a significantly increased risk of stroke. (verywellhealth.com)
  • stroke and thromboembolism in atrial fibrillation is established. (bioportfolio.com)
  • Current guidelines support treating atrial fibrillation (AF) and atrial flutter (AFL) as equivalent risk factors for ischemic stroke stratified by CHA2DS2-VASc scores, recommending anticoagulation the. (bioportfolio.com)
  • The atrial flutter waves are regular and on an electrocardiogram (ECG, EKG) are seen as P waves in a regular 'saw tooth' pattern (small P waves in succession with short or no intervals between each wave). (medicinenet.com)
  • When atrial flutter is conducted to the ventricle in a 1:1 fashion, the electrocardiogram may resemble ventricular tachycardia. (medscape.com)
  • Electrocardiogram showed the presence of the common-type atrial fl utter with 3:1 ventricular responses. (medscimonit.com)
  • The sawtooth pattern of the surface electrocardiogram (EKG) flutter waves was compared to the position of the dominant wavefront. (nih.gov)
  • In the electrocardiogram, AF is easily recognized due the absence of a P wave, which is replaced by a fast and irregular atrial activity that results in waves of variable voltage, duration, and frequency. (oncologynurseadvisor.com)
  • An electrocardiogram showed atrial flutter, at a rate of 148 beats/min, with variable block. (bmj.com)
  • Classifying atrial macro-re-entry from the electrocardiogram (ECG) is central in guiding the approach to ablation yet remains suboptimal. (onlinejacc.org)
  • What Is the Difference Between Atrial Flutter and Atrial Fibrillation (AFib)? (webmd.com)
  • About one-third of people who have AFib also have atrial flutter. (webmd.com)
  • Atrial flutter , atrial fibrillation (AFib), and atrial tachycardia are not the same things. (medicinenet.com)
  • In contrast, atrial flutter and AFib are two of the main types of atrial tachycardia. (medicinenet.com)
  • a regular pattern for atrial flutter and an irregular pattern for AFib. (medicinenet.com)
  • What are the differences in how atrial flutter and AFib affect the heart (ECG wave strip patterns)? (medicinenet.com)
  • An estimated 40 percent of people with atrial flutter also have AFib. (utah.edu)
  • Atrial Fibrillation - I am looking for someone to talk to who has afib. (drugs.com)
  • In terms of the risk for clots and strokes, European and North American guidelines do not distinguish between flutter and AFib. (drjohnm.org)
  • Drugs that block coagulation (anticoagulants, ie…'blood thinners') are recommended in atrial flutter similarly to AFib. (drjohnm.org)
  • The explanation here is beyond the scope of the post, but keep in mind that most patients with atrial flutter also have (at least the tendency for) AFib (See number 13. (drjohnm.org)
  • I see coarse AFib diagnosed as atrial flutter. (drjohnm.org)
  • Likewise, I see atrial flutter often called AFib. (drjohnm.org)
  • Nevertheless, digoxin is unlikely to be particularly effective in the acute conversion or prevention of atrial flutter recurrence. (medscape.com)
  • A relatively more recent drug, dronedarone, a less-lipophilic amiodarone analog, has been shown to prevent recurrence of atrial flutter and atrial fibrillation in adult patients, according to several multicenter trials. (medscape.com)
  • The complication rate was 2%, AFL recurrence was 1.1% and at 6 month follow-up, 12% had atrial fibrillation. (plos.org)
  • AAF degenerated to atrial fibrillation in 2/31 (6.5%) with RF and could not be reinduced after ASC ablation. (springer.com)
  • Typical atrial flutter results from a single "short-circuit" in the right atrium. (hopkinsmedicine.org)
  • The discussion in this topic pertains primarily to patients with typical atrial flutter. (uptodate.com)
  • Typical AFl uses the narrow isthmus of right atrial tissue between the tricuspid valve annulus and the inferior vena cava orifice as part of the macroreentrant circuit. (biomedsearch.com)
  • Saygi S, Drca N, Insulander P, Schwieler J, Jensen-Urstad M, Bastani H. Myocardial injury during radiofrequency and cryoablation of typical atrial flutter. (medscape.com)
  • Borlich M, Weinert R, Becker B, Kuhnhardt K, Richardt G, Iden L. Radiofrequency ablation of typical atrial flutter with access through the azygos vein in a patient with heterotopia utilizing high-density electroanatomic mapping. (medscape.com)
  • There are two types of atrial flutter: typical and atypical. (utah.edu)
  • Typical atrial flutter is more common and usually responds better to treatment. (utah.edu)
  • In the typical form, this entity is characterised electrocardiographically by flutter waves, which are a saw-tooth pattern of atrial activation, most prominent in leads II, III, aVF, and V1. (bmj.com)
  • We hypothesized that very high-density mapping of typical atrial flutter (AFL) would facilitate a more complete understanding of its circuit. (nih.gov)
  • These elements are present in a typical atrial flutter in the CTI. (statpearls.com)
  • Typical atrial flutter is the most common type of atrial flutter and is a macroreentrant atrial tachycardia that uses the CTI as an essential part of the circuit. (statpearls.com)
  • The Vaughan Williams class III agents ibutilide and dofetilide may be used for acute conversion of atrial flutter and fibrillation. (medscape.com)
  • Electrical conversion of atrial flutter to atrial fibrillation. (bmj.com)
  • Investigators conducted a search of PubMed, Embase, and Cochrane databases to identify studies comparing the efficacy of magnesium with ibutilide vs. ibutilide alone in the conversion of atrial fibrillation and flutter. (empr.com)
  • Researchers concluded that IV magnesium "significantly enhanced not only the safety but also the efficacy of ibutilide in conversion of atrial fibrillation and flutter. (empr.com)
  • When should you seek medical care for atrial flutter? (webmd.com)
  • Frost L, Hune LJ, Vestergaard P. [Overweight, obesity and risk factors for atrial fibrillation or flutter--secondary publication. (medscape.com)
  • Adjustments for age, sex, and risk factors for atrial fibrillation or flutter reduced the incidence rate ratio to 1.17 (1.10 to 1.24) for non-selective NSAIDs and 1.27 (1.20 to 1.34) for COX 2 inhibitors. (bmj.com)
  • Systemic lupus erythematosus (SLE) is a multisystem chronic inflammatory autoimmune disease with high prevalence of several risk factors for atrial fibrillation/flutter (AF). (jrheum.org)
  • All people with atrial fibrillation will need to learn how to manage this condition at home . (medlineplus.gov)
  • People with atrial fibrillation will most often need to take blood thinner medicines. (medlineplus.gov)
  • That is, people with atrial flutter will often go on to develop chronic atrial fibrillation. (verywellhealth.com)
  • The incidence of atrial fibrillation is growing worldwide in relation to aging populations. (europapress.es)
  • The diagnosis of atrial flutter was confirmed by the treating general practitioner or by research physicians and a cardiologist. (thefreedictionary.com)
  • Echocardiographic diagnosis of atrial flutter in a neonate. (bioportfolio.com)
  • 8. The diagnosis of atrial flutter can be tricky . (drjohnm.org)
  • Atrial flutter occurs most often in people with heart diseases such as pericarditis, coronary artery disease and cardiomyopathy. (heart.org)
  • The loss of the 'atrial kick' also leads to oxygen depletion in the coronary circulation, possibly leading to ischaemic, or angina-type pain. (nottingham.ac.uk)
  • 1 We report a case of acute coronary occlusion following a routine atrial flutter ablation. (eplabdigest.com)
  • Previously, there has been only one case of acute coronary occlusion following atrial flutter ablation reported in the literature. (eplabdigest.com)
  • Atrial flutter is a problem with the way your heart beats. (webmd.com)
  • The main danger with atrial flutter is that your heart doesn't pump blood very well when it beats too fast. (webmd.com)
  • In atrial flutter, electrical impulses don't travel in a straight line from the top of your heart to the bottom. (webmd.com)
  • I have had it for many years and in the year 2000 had an atrial myxoma removed from my heart. (healingwell.com)
  • Atrial flutter is caused by an abnormality in the electrical pacemaker in the heart atrium that causes an irregular heartbeat. (medicinenet.com)
  • Atrial flutter is a problem with the atria of the heart. (medicinenet.com)
  • In atrial flutter the atria of the heart rapidly and repeatedly beat. (medicinenet.com)
  • In atrial fibrillation, the electrical impulse of the heart is not regular. (medlineplus.gov)
  • In atrial flutter, the ventricles (lower heart chambers) may beat very rapidly, but in a regular pattern. (medlineplus.gov)
  • In atrial fibrillation or flutter, the heart rate may be 100 to 175 beats per minute. (medlineplus.gov)
  • An ECG (a test that records the electrical activity of the heart) may show atrial fibrillation or atrial flutter. (medlineplus.gov)
  • Like atrial fibrillation, atrial flutter occurs most commonly in elderly patients and those with other types of heart disease. (hopkinsmedicine.org)
  • [ 26 ] Fetal atrial flutter in a structurally normal heart seldom recurs after conversion before or after birth, and postnatal suppressive antiarrhythmic therapy may not be necessary. (medscape.com)
  • Atrial flutter makes the heart work well in pumping blood. (uhhospitals.org)
  • Although atrial flutter is not life-threatening at first, it does limit how well your heart pumps blood. (uhhospitals.org)
  • Over time, atrial flutter can weaken your heart muscle. (uhhospitals.org)
  • While atrial flutter can sometimes go unnoticed, its onset is often marked by characteristic sensations of the heart feeling like it is beating too fast or hard. (wikipedia.org)
  • citation needed] Prolonged atrial flutter with fast heart rates may lead to decompensation with loss of normal heart function (heart failure). (wikipedia.org)
  • There are effective treatments for atrial flutter, including medication or procedures designed to scar small areas of heart tissue (ablation). (mayoclinic.org)
  • He also said that if i took an extended episode of flutter, eg if my heart went into rapid rythymn for a long period of time, i was to take 1 more pill, but absolutely no more than 4 a day, as, he said, i could collapse with the drop in bp! (healingwell.com)
  • My atrial flutter trigger seems to be when I excersize and increase my heart rate. (medhelp.org)
  • Of note, it is also possible to get yourself out of atrial fibrillation by exercising and increasing your heart rate to the point that it overrides the atrial fibrillation. (medhelp.org)
  • If exercise is precipitating frequent atrial fibrillation, instead of focusing on avoiding exercise or limiting your heart rate, I would work with your physician on improving your control of atrial fibrillation. (medhelp.org)
  • During atrial fibrillation irregular signals within the upper chambers of your heart (called the atria) cause the area to expand and contract randomly and too rapidly. (nuffieldhealth.com)
  • Which heart condition is more serious, atrial flutter or atrial fibrillation? (rxlist.com)
  • We utilized these electrodes to study the spontaneous onset of type 1 atrial flutter in 16 patients in the postoperative period after open heart surgery. (nih.gov)
  • If atrial flutter affects a person who has no heart disease, the prognosis is generally quite good, notes WebMD. (reference.com)
  • If the patient has an underlying heart disease or lung disease, however, atrial flutter may recur, and it may get worse even with treatment, adds MedlinePlus. (reference.com)
  • What Does It Mean When Your Heart Flutters? (reference.com)
  • Getting a pacemaker can cure individual bouts of intermittent atrial fibrillation, but it doesn't cure the underlying condition, so the heart may still hav. (reference.com)
  • With atrial flutter, however, the electrical impulse begins in a circuit that moves throughout the right atrium and causes the heart to beat rapidly and abnormally. (akronchildrens.org)
  • Atrial flutter is often caused by damage to the heart or by congenital (present at birth) heart defects . (akronchildrens.org)
  • Treating the cause of atrial flutter can usually restore a normal heart rate. (akronchildrens.org)
  • With the state-of-the-art equipment and technology at the Meijer Heart Center, you are in the best place to access the latest treatments for atrial fibrillation. (spectrumhealth.org)
  • The loss of the 'atrial kick', with subsequent loss of 30% of the output from the heart, means that organs may suffer from oxygen depletion. (nottingham.ac.uk)
  • It feels like a fluttering or racing heart, or like your heart skips a beat. (dmc-modesto.com)
  • Atrial flutter is also seen in people who have had previous heart surgery. (verywellhealth.com)
  • As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES). (bioportfolio.com)
  • Among those with atrial flutter 16% were attributable to heart failure and 12% to chronic obstructive lung disease. (onlinejacc.org)
  • At highest risk of developing atrial flutter are men, the elderly and individuals with preexisting heart failure or chronic obstructive lung disease. (onlinejacc.org)
  • A disorder having a rapid, irregular sequence of heart beats resulting from a disordered electrical excitation of the atria, is known as atrial fibrillation or atrial flutter. (google.com)
  • Furthermore, F waves in IDAFL may be "atypical" in patients with atrial enlargement, heart failure, factors favoring atrial fibrillation ( 6 ), or varying bi-atrial activation ( 7,8 ). (onlinejacc.org)
  • Is it bad to drink alcohol if I have an atrial flutter of the heart? (healthtap.com)
  • The normal heart rate is 60 - 100, but in atrial fibrillation/flutter the heart rate may be 100 - 175. (drugster.info)
  • Atrial flutter in common in patients with underlying diseases such as chronic obstructive pulmonary disease, pulmonary hypertension, and heart failure. (statpearls.com)
  • A-16-year old boy with a history of surgical palliation of d-transposition of the great arteries, a normal systolic ejection fraction, and symptomatic drug refractory atrial flutter was referred for an electrophysiological study and ablation procedure. (thefreedictionary.com)
  • Our case demonstrates RF ablation of CTI is a safe and effective therapeutic modality of drug refractory atrial flutters in patients with Senning operation. (thefreedictionary.com)
  • Complications of atrial flutter can be devastating, but treatment almost always prevents them. (webmd.com)
  • What are possible complications of atrial flutter? (uhhospitals.org)
  • Although not immediately life-threatening, complications of atrial flutter can be serious if left untreated. (uhhospitals.org)
  • The risk of thromboembolic complications in Fontan patients with atrial flutter/fibrillation treated with electrical cardioversion. (medscape.com)
  • Whilst atrial flutter was relatively well tolerated in this patient, a previously healthy individual was subjected to several potential complications including tachycardia-related cardiomyopathy, thrombo-embolic events, trial of anti-arrhythmic therapy, anticoagulation and DC cardioversion. (bmj.com)
  • But if you're having atrial flutter , the electrical impulses will travel around the right atrium in a loop, causing the atria to beat much faster than normal and out of synch with the ventricles. (thefreedictionary.com)
  • Atrial flutter typically involves a circuit in the right atrium From: Cox D, Dougall H. Student BMJ. (bmj.com)
  • Infrequently, some patients with flutter waves may also have bradycardia because the heart's ventricles are not receiving most of the flutter P waves. (medicinenet.com)
  • Flutter waves may come and go spontaneously in some patients. (medicinenet.com)
  • Note negative sawtooth pattern of flutter waves in leads II, III, and aVF. (medscape.com)
  • Characteristic features on ECG are negatively directed saw-tooth atrial deflections (f waves) seen in leads II, III, and aVF, with positively directed deflections in lead V1. (bmj.com)
  • The downslope of the surface EKG flutter waves represented on average 73% ± 9% of the total flutter cycle length. (nih.gov)
  • [1] Electrocardiographic findings of atrial flutter are flutter waves without an isoelectric line in between QRS complex. (statpearls.com)
  • Electrical axis of the flutter waves can help to determine the origin of the atrial flutter. (statpearls.com)
  • Radiofrequency ablation of the inferior vena cava-tricuspid valve isthmus in common atrial flutter. (springer.com)
  • Use of antiarrhythmic agents other than digoxin for the long-term suppression of atrial flutter in sinus node disease (a frequent coexisting finding) is particularly controversial. (medscape.com)
  • I have a long history of fib/flutter and am in sinus rythm most of the time. (medhelp.org)
  • If the atrial fibrillation/flutter is part of a condition called sick sinus syndrome, the sinus node may not work properly. (drugster.info)