TachycardiaArrhythmiasConductionCardiacFibrillation or atrial flutterParoxysmal atrial fibriTachycardiasElectrical activation of the atriaMultifocalSeptal defectWavesEctopic beatsAbnormalBeatsElectrocardiogramNormal sinusNodalPremature complexesElectrocardiographyRhythmAtrioventricularTelemetryCatheter ablationShortness of breReentrantClinicalDiagnosisReentryPACsDepolarizationRefractoryFociEPIDEMIOLOGYPatientsOccurHeartIncreases the riskStrokeProspective cohorDefectsBenignSymptomsEpisodes
Tachycardia23
- exceptions include atrial fibrillation (AF) and multifocal atrial tachycardia (MAT). (medscape.com)
- For patient education information, see the Heart Health Center , as well as Supraventricular Tachycardia (SVT, PSVT) , Atrial Fibrillation (AFib ) , Atrial Flutter , and Arrhythmias (Heart Rhythm Disorders) . (medscape.com)
- A rapid atrial tachycardia with uniform P waves with flutter morphology and variable atrioventricular (AV) block indicates that atrial flutter or atrial ectopic tachycardia is present. (medscape.com)
- If the onset of tachycardia has been recorded, the absence of "warm-up" of the tachycardia cycle length makes atrial flutter the most likely diagnosis. (medscape.com)
- Similarly, sudden termination of the tachycardia points to atrial flutter. (medscape.com)
- In this case, the electrocardiographic (ECG) findings often suggest a mild sinus tachycardia with first-degree AV block. (medscape.com)
- Because adrenergic states that cause sinus tachycardia usually shorten rather than prolong the PR interval, the differential diagnosis of atrial flutter should be considered. (medscape.com)
- If 3 or more consecutive PACs occur in a row and at a frequency of 100 or more beats per minute, it may be called atrial tachycardia. (wikipedia.org)
- Based on prevalence, the number of people who had any abnormalities (excluding repolarization abnormalities and atrial tachycardia which decreased) was higher than 2007, since they were found at least once between 2008-2017. (bvsalud.org)
- and detecting ventricular tachycardia and off-treatment atrial fibrillation. (medscape.com)
- A total of 17 patients were found to have atrial flutter /fibrillation and another 17 patients had supraventricular tachycardia . (medscape.com)
- This can present with palpitations or syncope from an atrioventricular reciprocating tachycardia or rarely sudden death secondary to ventricular fibrillation from rapid conduction of atrial fibrillation across the accessory pathway. (escardio.org)
- Myocardial involvement may produce tachyarrhythmias, predominantly ventricular tachycardia (VT), but atrial tachycardias, atrial flutter, and atrial fibrillation may also occur. (merckmanuals.com)
- Tachycardia is a very common clinical finding in the emergency department (ED), and the differential diagnosis is often challenging. (biomedcentral.com)
- The usual rate is 160-240 beats/min and is moderately regular but less so than atrial tachycardia. (health.am)
- In nonacute settings, most patients with ventricular tachycardia have known or easily detectable cardiac disease, and the finding of ventricular tachycardia is an unfavorable prognostic sign. (health.am)
- With catheter ablation becoming effective for non-pharmacological management of AF, many cases of atrial tachycardia (AT) after AF ablation have been reported in the past decade. (aerjournal.com)
- 9-12 However, atrial tachycardia (AT) occurring after AF ablation is often symptomatic, complex and poorly controlled by anti-arrhythmic agents. (aerjournal.com)
- Dr. Olgin's basic research lab is interested in atrial and ventricular remodeling and how these processes occur to develop a substrate for atrial fibrillation and ventricular tachycardia. (ucsf.edu)
- This ECG shows an atrial tachycardia with atrial rate of 120bpm. (cardiacbootcamp.org)
- This is a unifocal atrial tachycardia. (cardiacbootcamp.org)
- The unifocal atrial tachycardia can be treated like an SVT. (cardiacbootcamp.org)
- The ventricular tachycardia score: a novel approach to electrocardiographic diagnosis of ventricular tachycardia. (cardiacbootcamp.org)
Arrhythmias5
- Wynnewood, PA - Early experiences with an ambulatory electrocardiographic monitoring system have shown the device to be effective at detecting cardiac arrhythmias in patients with and without symptoms. (medscape.com)
- CARL pioneered computational mapping of 'chaotic' heart rhythm disturbances (arrhythmias), targeting mechanistic drivers for atrial and ventricular fibrillation (AF, VF) using machine learning and computational models. (stanford.edu)
- Specific support has been via grants HL70529 and HL162260 for ventricular arrhythmias, and HL103800, HL83359, HL122384, HL149134, and several SBIR grants for atrial arrhythmias. (stanford.edu)
- Direct current cardioversion is a well-established and safe procedure to restore normal sinus rhythm for atrial and ventricular arrhythmias. (biomedcentral.com)
- A 10-year observational study on the pregnant women demonstrated 29 cases of fetal arrhythmias: 12 (41.4%) of which were fetal tachycardias (10 cases with SVT, 2 cases with atrial flutter (AF)), 5 (17.2%) were fetal bradyarrhythmias (all 5 cases with AV block), and 12 (41.4%) were fetal irregular cardiac rhythms (premature atrial beats) [ 4 ]. (biomedcentral.com)
Conduction6
- With a 2:1 conduction ratio, every other flutter wave may be hidden within the QRS complex. (medscape.com)
- Unipolar atrial wire recordings or bipolar recordings with a simultaneously recorded surface ECG can often be used to confirm a suspected atrial flutter with 2:1 conduction ratio by unmasking the second flutter wave. (medscape.com)
- In intact animals it slows heart rate, decreases AV nodal conduction and increases the refractory periods of atrial and ventricular muscle and conduction tissue. (nih.gov)
- The correlation between atrial conduction abnormalities and paroxysmal atrial fibrillation has been previously described1. (romanianjournalcardiology.ro)
- While the P wave duration is linked to prolonged intra and in-teratrial conduction, more insight can be obtained if the variation in P wave duration is measured between different ECG leads as a marker of non-homogeneous atrial conduction. (romanianjournalcardiology.ro)
- A type of atrial arrhythmia characterized by atrial rates of between 240 and 400 beats per minute and some degree of atrioventricular node conduction block. (nih.gov)
Cardiac10
- Premature atrial contraction (PAC), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a common cardiac dysrhythmia characterized by premature heartbeats originating in the atria. (wikipedia.org)
- Additional factors that may contribute to spontaneous premature atrial contractions could be: Increased age Abnormal body height Family history of heart disease History of cardiovascular disease (CV) Abnormal atrial natriuretic peptide (ANP) levels Elevated cholesterol Premature atrial contractions are typically diagnosed with an electrocardiogram, Holter monitor, long-term continuous monitor, cardiac event monitor, or with a smartwatch with an ECG functionality. (wikipedia.org)
- Typically, the atrial impulse propagates normally through the atrioventricular node and into the cardiac ventricles, resulting in a normal, narrow QRS complex. (wikipedia.org)
- To minimize the risk of induced arrhythmia, patients initiated or re-initiated on Sotalol Hydrochloride Tablets (AF) should be placed for a minimum of three days (on their maintenance dose) in a facility that can provide cardiac resuscitation, continuous electrocardiographic monitoring and calculations of creatinine clearance. (nih.gov)
- Sotalol hydrochloride prolongs the plateau phase of the cardiac action potential in the isolated myocyte, as well as in isolated tissue preparations of ventricular or atrial muscle (Class III activity). (nih.gov)
- Publishing their early experiences with the mobile cardiac outpatient telemetry system, known as MCOT (CardioNet, San Diego, CA), in the April 2005 issue of the American Journal of Cardiology , the investigators write that "compared with Holter monitoring and external loop recorders, MCOT increases the sensitivity of detecting atrial fibrillation without symptoms by providing a longer period of monitoring and without the need for patient activation. (medscape.com)
- Atrial fibrillation is a supraventricular arrhythmia that adversely affects cardiac function and increases the risk of stroke. (aafp.org)
- Surgical treatments for atrial fibrillation are reserved for patients who are undergoing cardiac surgery for other reasons. (aafp.org)
- INTRODUCTION - Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in clinical practice. (medilib.ir)
- Dr. Olgin's clinical research has focused on atrial fibrillation and sudden cardiac death mechanisms, epidemiology, genetics and interventions. (ucsf.edu)
Fibrillation or atrial flutter2
- We classified patients with at least one ECG with a rhythm of atrial fibrillation or atrial flutter as positive for atrial fibrillation. (elsevierpure.com)
- An echo performed from your esophagus is very important in looking for blood clots if you have atrial fibrillation or atrial flutter and a cardioversion and/or radiofrequency ablation procedure is planned. (bcm.edu)
Paroxysmal atrial fibri3
- Ablation therapy may be superior to antiarrhythmics in selected patients, including those with paroxysmal atrial fibrillation who are symptomatic but without structural heart disease, patients who are intolerant of antiarrhythmics, and patients with inadequate pharmacologic rhythm control. (aafp.org)
- Abstract: Objectives - The aim of this study was to determine if specific electrocardiographic parameters and echo-cardiographic atrial indices could help in predicting the risk for developing paroxysmal atrial fibrillation (PAF). (romanianjournalcardiology.ro)
- Prolonged electrocardiography (ECG)-monitoring in stroke patients improves the detection of paroxysmal atrial fibrillation (pAF). (j-stroke.org)
Tachycardias2
- The NST group included AF, atrial flutter, paroxysmal supraventricular tachycardias (PSVTs) including atrial tachycardias and indeterminate nonsinus rhythms. (biomedcentral.com)
- Atrial Tachycardias After Atrial Fibrillation Ablation: How to Manage? (aerjournal.com)
Electrical activation of the atria2
- Atrial fibrillation is a supraventricular arrhythmia characterized by uncoordinated electrical activation of the atria and an irregular, often rapid, ventricular response causing hemodynamic compromise. (aafp.org)
- These findings underlie the link between impaired electrical activation of the atria and atrial mecha-nical dysfunction as assessed by both atrial emptying fraction and atrial function index. (romanianjournalcardiology.ro)
Multifocal1
- Na v 1.5 gain-of-function mutation is proved to be associated with an increased risk of multifocal atrial and ventricular ectopies and dilated cardiomyopathy [ 8 ]. (biomedcentral.com)
Septal defect1
- 120ms) is commonly found in trained athletes but care is needed not to miss underlying pathology such as an atrial septal defect, brugada syndrome or arrhythmogenic right ventricular cardiomyopathy (see below) ( 1 ). (escardio.org)
Waves3
- atrial flutter waves are observed as sawtooth-like atrial activity. (nih.gov)
- By using Doppler ultrasound, simultaneous recording of the atrial and ventricular waves can be obtained. (biomedcentral.com)
- Therefore, atrial p waves of often variable morphology occur earlier than expected in the ECG recording. (veteriankey.com)
Ectopic beats1
- This may be induced by premature atrial or ventricular ectopic beats. (medscape.com)
Abnormal1
- Ablation therapy is used to destroy abnormal foci responsible for atrial fibrillation. (aafp.org)
Beats3
- Rhythm strip depicting lead II of a patient with atrial flutter with an atrial rate of 300 beats per minute (bpm). (medscape.com)
- Depending whether there are one, two, or three normal (sinus) beats between each PACs, the rhythm is called atrial bigeminy, trigeminy, or quadrigeminy. (wikipedia.org)
- Ambulatory electrocardiographic monitoring or monitoring during graded exercise may reveal more frequent and complex ventricular premature beats than occur in a single routine ECG. (health.am)
Electrocardiogram1
- A 12-lead to 15-lead electrocardiogram (ECG) is the mainstay of atrial flutter diagnosis. (medscape.com)
Normal sinus4
- Methods: We developed an artificial intelligence (AI)-enabled electrocardiograph (ECG) using a convolutional neural network to detect the electrocardiographic signature of atrial fibrillation present during normal sinus rhythm using standard 10-second, 12-lead ECGs. (elsevierpure.com)
- Findings: We included 180 922 patients with 649 931 normal sinus rhythm ECGs for analysis: 454 789 ECGs recorded from 126 526 patients in the training dataset, 64 340 ECGs from 18 116 patients in the internal validation dataset, and 130 802 ECGs from 36 280 patients in the testing dataset. (elsevierpure.com)
- 3051 (8ยท4%) patients in the testing dataset had verified atrial fibrillation before the normal sinus rhythm ECG tested by the model. (elsevierpure.com)
- Interpretation: An AI-enabled ECG acquired during normal sinus rhythm permits identification at point of care of individuals with atrial fibrillation. (elsevierpure.com)
Nodal2
- SVT in general is any tachyarrhythmia that requires atrial and/or atrioventricular (AV) nodal tissue for its initiation and maintenance. (medscape.com)
- Atrial ventricular nodal ablation is recommended for patients refractory to medical therapy, usually older patients needing a pacemaker. (aafp.org)
Premature complexes1
- Notice the unconducted atrial premature complexes (APCs) superimposed on the ST segment of the previous depolarization (arrows) that appear in a bigeminal pattern. (avma.org)
Electrocardiography1
- Pulse rate is sensitive, but not specific, for diagnosis, and suspected atrial fibrillation should be confirmed with 12-lead electrocardiography. (aafp.org)
Rhythm2
- Atrial dimensions were higher and the reservoir function was altered in patients with PAF compared with patients in sinus rhythm. (romanianjournalcardiology.ro)
- Some reports showed that the measurement in sinus rhythm of P wave dispersion (Pd) and P wave duration together with atrial echocardiographic indices might be a useful, easy and noninvasive clinical tool to identify patients at risk of developing PAF3. (romanianjournalcardiology.ro)
Atrioventricular2
- However, if the atrial beat is premature enough, it may reach the atrioventricular node during its refractory period, in which case it will not be conducted to the ventricle and there will be no QRS complex following the P wave. (wikipedia.org)
- This can be either a premature atrial contraction or a premature impulse from the atrioventricular node. (wikipedia.org)
Telemetry2
- Modern atrial or dual-chamber pacemakers can provide a unipolar or bipolar atrial electrogram by telemetry from the device. (medscape.com)
- The use and effectiveness of electrocardiographic telemetry monitoring in a community hospital general care setting. (jamanetwork.com)
Catheter ablation1
- In the Catheter Ablation Versus Anti-arrhythmic Drug Therapy for Atrial Fibrillation (CABANA) trial, the catheter ablation group had superior quality of life compared with the anti-arrhythmic drug group and less AF recurrence after blanking through intention-to-treat analysis. (aerjournal.com)
Shortness of bre1
- Resulting symptoms include dizziness, a sensation of fluttering or pounding in the chest (palpitations), shortness of breath, and fainting (syncope). (nih.gov)
Reentrant1
- Atrial flutter is a reentrant arrhythmia circuit confined to the atrial chambers. (medscape.com)
Clinical5
- However, when we evaluated incidence, except for clinical bradycardia and dizziness, it was observed that the number of new cases of all clinical and ECG findings decreased at the end of the follow-up. (bvsalud.org)
- Total improvement prevailed over the persistence of all clinical and ECG/Holter findings, except for sinus bradycardia. (bvsalud.org)
- The second treatment did not have significant influence on the incidence of clinical or ECG/Holter findings. (bvsalud.org)
- Because normal electrocardiographic findings do not rule out atrial fibrillation, home monitoring is recommended if there is clinical suspicion of arrhythmia despite normal test results. (aafp.org)
- Practice standards for electrocardiographic monitoring in hospital settings: an American Heart Association scientific statement from the Councils on Cardiovascular Nursing, Clinical Cardiology, and Cardiovascular Disease in the Young: endorsed by the International Society of Computerized Electrocardiology and the American Association of Critical-Care Nurses. (jamanetwork.com)
Diagnosis2
- In patients with possible atrial flutter occurring soon after the repair of congenital heart disease, the use of temporary atrial wires is extremely helpful in diagnosis and therapy. (medscape.com)
- In patients without temporary atrial wires, the use of an esophageal electrode placed behind the left atrium is also extremely helpful for diagnosis and therapy. (medscape.com)
Reentry2
- Micro-reentry and enhanced automaticity in one or more atrial circuits are the most common triggers for atrial fibrillation. (aafp.org)
- Pathophysiologically, atrial flutter is a form of atrial reentry in which there is a premature electrical impulse creates a self-propagating circuit. (nih.gov)
PACs2
- Often, hypertension goes hand in hand with various atrial fibrillations including premature atrial contractions (PACs). (wikipedia.org)
- Rarely, in patients with other underlying structural heart problems, PACs can trigger a more serious arrhythmia such as atrial flutter or atrial fibrillation. (wikipedia.org)
Depolarization1
- Atrial depolarization changes are linked to mechanical disturbances, being probably the first sign of atrial remodeling. (romanianjournalcardiology.ro)
Refractory1
- The Class III electrophysiological effects in man include prolongation of the atrial and ventricular monophasic action potentials, and effective refractory period prolongation of atrial muscle, ventricular muscle, and atrio-ventricular accessory pathways (where present) in both the anterograde and retrograde directions. (nih.gov)
Foci1
- Premature atrial depolarizations arise within atrial foci not often associated with the SA node. (veteriankey.com)
EPIDEMIOLOGY1
- EPIDEMIOLOGY - Atrial fibrillation (AF) is a global health care problem with evidence suggesting an increasing prevalence and incidence worldwide [ 4-6 ]. (medilib.ir)
Patients7
- Consider transesophageal echocardiography in patients with associated structural or functional heart disease to ascertain the presence of intracardiac thrombi, myocardial dysfunction, or hemodynamically important residual structural defects that could predispose them to atrial flutter. (medscape.com)
- In otherwise healthy patients, occasional single premature atrial contractions are a common finding and most of times do not indicate any particular health risk. (wikipedia.org)
- We aimed to develop a rapid, inexpensive, point-of-care means of identifying patients with atrial fibrillation using machine learning. (elsevierpure.com)
- Conclusions - P wave dispersion and 2DE atrial function indices could identify susceptible PAF patients. (romanianjournalcardiology.ro)
- Aim of the study To determine whether specifi c ECG parameters and transthoracic echocardiographic atrial measurements could help in predicting the risk for developing PAF in patients without structural car-diac disease. (romanianjournalcardiology.ro)
- Methods We applied electrocardiographic imaging (ECGI) to acquire electroanatomical maps in patients with CA and controls. (bmj.com)
- The third heart sound (S 3 ), an acoustic cardiographic parameter, has been demonstrated to be a highly specific finding for hemodynamic evaluation in patients with heart failure. (thoracickey.com)
Occur1
- It may be found as an incidental finding in some horses or can occur in horses with concurrent EIPH, congestive heart failure, respiratory distress, pulmonary hemorrhage, ataxia or collapse and myopathy. (veteriankey.com)
Heart4
- Background: Atrial fibrillation is frequently asymptomatic and thus underdetected but is associated with stroke, heart failure, and death. (elsevierpure.com)
- A beta blocker or nondihydropyridine calcium channel blocker should be used to control heart rate in atrial fibrillation. (aafp.org)
- For example, at rapid heart rates, atrial activity may be obscured, and irregularity associated with atrial fibrillation (AF) may be difficult to appreciate. (biomedcentral.com)
- The heart is constituted by three types of muscle: atrial, ventricular, and specialized excitatory and conducting fibers. (bvsalud.org)
Increases the risk2
- Atrial fibrillation (AF) is common in older people and increases the risk of stroke. (researchprotocols.org)
- Proteinuria is a well-known cardiovascular risk factor, but whether it independently increases the risk for atrial fibrillation (AF) in Chinese population is unknown. (canterbury.ac.uk)
Stroke4
- Left atrial appendage obliteration is an option for reducing stroke risk. (aafp.org)
- 1 , 2 As the atria fibrillate, blood pools in the atria, and a clot may form in the atrial appendage, increasing the risk of embolic stroke. (aafp.org)
- Atrial fibrillation is associated with a fivefold increased risk of stroke, 3 - 5 and it is the most common arrhythmia. (aafp.org)
- Atrial fibrillation and stroke: chicken or egg? (mcmaster.ca)
Prospective cohor1
- METHODS AND FINDINGS: A prospective cohort study was conducted to assess morbidity and mortality during 10 years observation in 106 people simultaneously infected and treated in the largest known orally transmitted ChD outbreak in 2007. (bvsalud.org)
Defects1
- Atrial septal defects are uncommon in the equine neonate. (veteriankey.com)
Benign1
- Premature atrial contractions are often benign, requiring no treatment. (wikipedia.org)
Symptoms1
- This will help your health care provider match symptoms with your monitor findings. (medlineplus.gov)
Episodes1
- Preceding Night Sleep Quality and Atrial Fibrillation Episodes in the I-STOP-AFIB Randomized Trial. (ucsf.edu)