FibrillationFlutterSupraventricular tachycardiaParoxysmalArrhythmiasArrhythmiaBeatsFocalAblationMultifocalSeptalInappropriate sinus tachyNarrow complex tachycardiaCongenital heart dParoxysms of tachycardiaTachyarrhythmiaLeft atrialIntra-atrialRhythmsContractionJunctionalSinus rhythmOccursPacemakerSVTsEpisodesCardiomyopathyIdiopathicRefractoryElectrocardiogramPediatricDiagnosisNoncardiacPulmonaryFociRecurrentRhythmMyocardiumStrokePersistentMechanismMedicationFibrousVentricleRight atrium
Fibrillation27
- The most common type of arrhythmia is atrial fibrillation , which causes an irregular and fast heart beat. (medlineplus.gov)
- 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)
- Mentor to Prasanthan Ganesan, PhD, 1st Place Young Investigator Awards Competition, Western Atrial Fibrillation Symposium. (stanford.edu)
- Atrial Fibrillation, Atrial Tachycardia: What's the Difference? (acc.org)
- Prior Holter monitoring demonstrated episodes of atrial fibrillation as well as an atrial tachycardia. (acc.org)
- This study noted "disorganized atrial activity with earliest activation in the left atrium consistent with atrial fibrillation/flutter. (acc.org)
- We then started isoproternol up to 10mcg/min with no induction of atrial tachycardia or atrial fibrillation. (acc.org)
- (1) The posterior wall of the left atrium is hypothesized to be a territory rich in triggers for the formation of atrial fibrillation. (acc.org)
- (3) In this series, focal ablation of either the earliest activation site at the os of the vein, or circumferential ablation of the culprit vein resulted in favorable long term freedom from recurrent atrial tachycardia, and atrial fibrillation. (acc.org)
- Pulmonary vein arrhythmias have been associated with the development of atrial fibrillation. (acc.org)
- (4) In three large series of patients undergoing ablation for focal pulmonary vein tachycardia, the reported development of atrial fibrillation post ablation is low. (acc.org)
- (5,6) While our patient has had improvement of his LVEF, and is free from arrhythmias, his future risk of the development of atrial fibrillation is unknown. (acc.org)
- ECM is emerging as an important tool not only for diagnostic mapping, but also as a guide for trans-catheter ablation of complex arrhythmias such as atrial fibrillation. (minervamedica.it)
- A model is capable of simulating sinus rhythm, atrial fibrillation and ectopic beats in ECGs and PPGs as well as extreme bradycardia and ventricular tachycardia in PPGs. (physionet.org)
- Tachycardia or atrial ectopic tachycardia or fibrillation is not practical. (elastizell.com)
- F 1 scores for 11 rhythms exceeded 80, 7 exceeded 90, and 5 including atrial fibrillation/flutter, ventricular tachycardia, ventricular bigeminy, ventricular trigeminy, and third-degree heart block exceeded 95. (nih.gov)
- 2. Paroxysmal atrial flutter or fibrillation. (rjmatthewsmd.com)
- E. The chronic or long standing PSVT'S like atrial flutter or fibrillation do not revert without treatment,often fail to revert even with attempted treatment and if reverted will often recur despite therapy. (rjmatthewsmd.com)
- Radiofrequency catheter ablation techniques are safe and effective as well, especially for patients with poor tolerance to drugs (see figure figure 3b radiofrequency ablation in WPW, as well as in the treatment of atrial flutter and fibrillation by identifying tract carrying the excitation impulse). (rjmatthewsmd.com)
- In a sensitivity analysis we excluded patients diagnosed with atrial fibrillation after discharge. (blogspot.com)
- Facilitation of atrioventricular conduction has been observed in human electrophysiologic studies and in patients with atrial fibrillation. (drugs.com)
- 11. Risk factors for development of atrial fibrillation. (prime-cardiology.com)
- 12. Atrial fibrillation after noncardiac surgery. (prime-cardiology.com)
- Identify the key ECG findings for atrial fibrillation (Afib) and use two key features to distinguish it from other SVTs. (teachim.org)
- Pulmonary veins (PVs) are the most important sources of ectopic beats with the initiation of paroxysmal atrial fibrillation, or the foci of ectopic atrial tachycardia and focal atrial fibrillation. (biomedcentral.com)
- Atrial fibrillation (AF) is the most common sustained arrhythmia in clinical medicine. (biomedcentral.com)
- BrS is associated with an increased risk of syncope, palpitations, chest pain, convulsions, difficulty in breathing (nocturnal agonal breathing) and/or Sudden Cardiac Death (SCD) secondary to PVT/VF, unexplained cardiac arrest or documented PVT/VF or Paroxysmal atrial fibrillation (AF) in the absence of apparent macroscopic or structural heart disease, electrolyte disturbance, use of certain medications or coronary heart disease and fever. (bvsalud.org)
Flutter2
- Forms of atrial tachycardia (ATach) include multifocal atrial tachycardia (MAT), focal atrial tachycardia and atrial flutter. (wikipedia.org)
- Disopyramide is used for preventing and restoring atrial and ventricular extrasystole and tachycardia in order to prevent atrial flutter and arrhythmia. (chemicalbook.com)
Supraventricular tachycardia6
- however, it is the most common form of incessant supraventricular tachycardia (SVT) in children. (medscape.com)
- Other possible etiologies are listed below: Hypoxia Pulmonary disease Ischemic heart disease Stimulants: cocaine, caffeine, chocolate, ephedra Alcohol Metabolic disturbances Digoxin toxicity Heightened sympathetic tone A study noted 10 to 15% of patients presenting for supraventricular tachycardia (SVT) ablation had atrial tachycardia. (wikipedia.org)
- Focal atrial tachycardia as the sole mechanism for supraventricular tachycardia is relatively rare accounting for 10-15% of cases referred for catheter ablation. (acc.org)
- [ 1 ] Currently, Wolff-Parkinson-White (WPW) syndrome is defined as a congenital condition involving abnormal conductive cardiac tissue between the atria and the ventricles that provides a pathway for a reentrant tachycardia circuit, in association with supraventricular tachycardia (SVT). (medscape.com)
- F. The most common form of paroxysmal supraventricular tachycardia (PSVT) is AV nodal reentry due to dual pathways of excitation in the region of the AV node (see Figure 1). (rjmatthewsmd.com)
- Maintenance of sinus rhythm in patients with supraventricular arrhythmias, including paroxysmal supraventricular tachycardia (PSVT), Wolff-Parkinson-White (WPW) syndrome, junctional ectopic tachycardia, paroxysmal atrial tachycardia, and atrioventricular node re-entrant tachycardia. (pediatriconcall.com)
Paroxysmal1
- Paroxysmal atrial tachycardia (PAT) is an episode of arrhythmia that begins and ends abruptly. (wikipedia.org)
Arrhythmias3
- 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)
- 5. Bolognesi M, Bolognesi D. A prominent crista terminalis associated with atrial septal aneurysm that mimics right atrial mass leading to atrial arrhythmias: a case report. (radiopaedia.org)
- Treatment of ventricular arrhythmias, such as sustained ventricular tachycardia. (pediatriconcall.com)
Arrhythmia4
- This arrhythmia, which is also known as ectopic atrial tachycardia or automatic atrial tachycardia, has a high association with tachycardia-induced cardiomyopathy. (medscape.com)
- Three options are available for long-term treatment of patients with atrial ectopic tachycardia: medication to suppress the arrhythmia or control the ventricular response, catheter ablation, or, uncommonly, surgery (see Treatment ). (medscape.com)
- Occasionally, mycoplasmal or viral infections, such as respiratory syncytial virus , may trigger this arrhythmia, although more complex atrial tachycardias, such as chaotic atrial tachycardia, are more frequently found in this scenario. (medscape.com)
- Because PVs was known to induce atrial arrhythmia through the enhancement of triggered activity, it is possible that NO may play a critical role in the PV arrhythmogenic activity. (biomedcentral.com)
Beats2
- When the heart beats faster than normal, it is called tachycardia. (medlineplus.gov)
- The pauses are real and there is a non-conducted atrial tachyarrhythmia, which terminates abruptly after a few beats. (cardioscan.co)
Focal7
- However, focal atrial tachycardia often occurs in healthy individuals without structural heart disease. (wikipedia.org)
- Catheter ablation of focal atrial tachycardia may be appropriate in patients failing medical therapy. (wikipedia.org)
- Despite an irregularly irregular rhythm, the patient in our case suffers from a focal atrial tachycardia. (acc.org)
- (2) Although relatively rare, sustained episodes of focal atrial tachycardia may lead to a rate related cardiomyopathy. (acc.org)
- Those, who report lots of Holters, see this about once a month and this is a focal atrial tachycardia with block, although the third beat probably conducts. (cardiacmonitoringservice.com)
- The focal atrial tachycardia is irregular and the last atrial complex occurs earlier and then blocks. (cardiacmonitoringservice.com)
- Focal atrial tachycardia with Wenckebach block at the ectopic-myocardial junction. (cardioscan.co)
Ablation3
- Within several seconds of ablation, there was complete cessation of tachycardia. (acc.org)
- He remains free from tachycardia three months post ablation. (acc.org)
- Permanent form of junctional reciprocating tachycardia and tachycardia-induced cardiomyopathy treated bycatheter ablation: a case report. (thebluntdissection.org)
Multifocal1
- Go to Atrial Tachycardia and Multifocal Atrial Tachycardia for information on these topics. (medscape.com)
Septal5
- 2 dimensional transthoracic apical 4-chamber view showing the atrial septal defect, the fibrous band and the dilated right atrium and ventricle. (ispub.com)
- It is an AV re-entry tachycardia (described as a long R-P tachycardia) with a postero-septal accessory pathway. (thebluntdissection.org)
- Congenital heart disease: primum atrial septal defect, atrioventricular canal. (my-ekg.com)
- Ostium primum atrial septal defect an atrioventricular canal may causes left-axis deviation 5 . (my-ekg.com)
- BACKGROUND AND AIM: The GOREĀ® CARDIOFORM (GCO) septal occluder is an atrial septal defect/patent foramen ovale closure device with theoretical advantages over other commercialized devices thanks to its softness and anatomical compliance. (bvsalud.org)
Inappropriate sinus tachy1
- In this review, we focus on two challenging problems that span the spectrum of abnormally fast sinus HR. The first section reviews inappropriate sinus tachycardia, a complex disorder characterized by rapid sinus HR without a clear underlying cause, with particular emphasis on current management options. (medscape.com)
Narrow complex tachycardia2
- The diagnosis of atrial ectopic tachycardia is based on the presence of a narrow complex tachycardia (in the absence of aberrancy or preexisting bundle branch block) with visible P waves at an inappropriately rapid rate. (medscape.com)
- It is characterised by incessant (& sometimes permanent) narrow complex tachycardia, which may be the patient's predominant rhythm. (thebluntdissection.org)
Congenital heart d1
- Ectopic Atrial Tachycardia in Infants Following Congenital Heart Disease Surgery. (sc-ctsi.org)
Paroxysms of tachycardia2
- In 1930, Wolff, Parkinson, and White described a series of young patients who experienced paroxysms of tachycardia and had characteristic abnormalities on electrocardiography (ECG). (medscape.com)
- In 1930, Wolff, Parkinson, and White described a series of young patients who had a bundle branch block pattern on electrocardiography (ECG), a short PR interval, and paroxysms of tachycardia. (rjmatthewsmd.com)
Tachyarrhythmia2
- If atrial tachyarrhythmia persists and the patient is symptomatic, the patient may benefit from class IA, IC, or class III antiarrhythmics. (wikipedia.org)
- The techs this week showed me an atrial tachyarrhythmia which did not conduct to the ventricle. (cardiacmonitoringservice.com)
Left atrial2
- The p wave in lead V1 is entirely positive, suggesting a left atrial focus. (acc.org)
- representing both right & left atrial depolarisation. (thebluntdissection.org)
Intra-atrial2
- CONCLUSIONS: Percutaneous ASD closure with the GCO device results in significant, sudden improvement of intra-atrial, atrio-ventricular and intraventricular electrical homogeneity. (bvsalud.org)
- Anatomic evidence suggests the presence of 3 intra-atrial pathways: (1) anterior internodal pathway, (2) middle internodal tract, and (3) posterior internodal tract. (medscape.com)
Rhythms1
- Ventricular ectopic rhythms (e.g., ventricular tachycardia ). (my-ekg.com)
Contraction1
- Both atria contract together, as do the ventricles, but atrial contraction occurs first. (medscape.com)
Junctional2
- Permanent junctional reciprocating tachycardia in children: a multicentre study on clinical profile and outcome. (thebluntdissection.org)
- Tachycardia-Mediated Cardiomyopathy and the Permanent Form of Junctional Reciprocating Tachycardia. (thebluntdissection.org)
Sinus rhythm2
- Figures 1 and 2 demonstrate a 12-lead electrocardiogram with bursts of atrial tachycardia and sinus rhythm. (acc.org)
- In contrast to the atrial switch procedures (Mustard and Senning operation), the ASO has the advantage of the maintenance of sinus rhythm, utilization of the left ventricle as the systemic ventricle and the mitral valve as the systemic atrioventricular valve 3) . (e-cep.org)
Occurs1
- Although estimates of the incidence of pediatric SVTs widely vary, atrial ectopic tachycardia likely occurs with an incidence of approximately 1 case per 10,000 children. (medscape.com)
Pacemaker1
- Atrial tachycardia is a type of heart rhythm problem in which the heart's electrical impulse comes from an ectopic pacemaker (that is, an abnormally located cardiac pacemaker) in the upper chambers (atria) of the heart, rather than from the sinoatrial node, the normal origin of the heart's electrical activity. (wikipedia.org)
SVTs1
- Although the exact incidence is unknown and few large series have been reported, atrial ectopic tachycardia reportedly comprises 5-10% of pediatric SVTs. (medscape.com)
Episodes1
- three episodes), ventricular ectopics (three episodes), atrial ectopics (one) and P wave abnormalities (one). (nih.gov)
Cardiomyopathy4
- Patients with atrial ectopic tachycardia may present with circulatory collapse similar to patients with cardiomyopathy. (medscape.com)
- Because atrial ectopic tachycardia is often incessant, tachycardia-induced cardiomyopathy is commonly observed. (medscape.com)
- Tachycardia-induced cardiomyopathy is the most significant sequela of atrial ectopic tachycardia and may be insidious. (medscape.com)
- It is a rare, but documented cause of tachycardia-induced cardiomyopathy in children & is frustratingly refractory to drug therapy. (thebluntdissection.org)
Idiopathic1
- Atrial ectopic tachycardia is usually idiopathic. (medscape.com)
Refractory1
- Atrial ectopic tachycardia is often refractory to medical therapy and is not usually responsive to direct current (DC) cardioversion. (medscape.com)
Electrocardiogram1
- Fig. 1) Her electrocardiogram showed sinus tachycardia, right axis deviation, right atrial enlargement, right bundle branch block and right ventricular hypertrophy. (ispub.com)
Pediatric1
- The adult form of atrial ectopic tachycardia may have a different etiology and natural history than the pediatric form. (medscape.com)
Diagnosis1
- IST is a diagnosis of exclusion and extensive evaluation to identify secondary causes of sinus tachycardia should be performed. (medscape.com)
Noncardiac1
- Routine blood studies may be needed to help rule out noncardiac conditions triggering tachycardia. (medscape.com)
Pulmonary2
- Pulmonary vein associated tachycardia is a rare entity. (acc.org)
- In a retrospective series, only 3% of all atrial tachycardia from a large tertiary referral center was classified as pulmonary vein tachycardia. (acc.org)
Foci1
- Atrial ectopic tachycardia is believed to be secondary to increased automaticity of a nonsinus atrial focus or foci. (medscape.com)
Recurrent1
- The chronic and recurrent ones are related to underlying structural causes like atrial disease or mitral disease. (rjmatthewsmd.com)
Rhythm3
- As with any other form of tachycardia (rapid heart beat), the underlying mechanism can be either the rapid discharge of an abnormal focus, the presence of a ring of cardiac tissue that gives rise to a circle movement (reentry), or a triggered rapid rhythm due to other pathological circumstances (as would be the case with some drug toxicities, such as digoxin toxicity). (wikipedia.org)
- Electrical signals in the ventricles and V-tach cause this abnormal heart rhythm called ventricular tachycardia. (kauveryhospitalsbangalore.com)
- Left-axis deviation may also be seen in high degrees of pre-excitation , during a ventricular tachycardia , in a paced rhythm 2 , in expiration, pregnancy , ascites, etc. (my-ekg.com)
Myocardium1
- These groups of internodal tissue are best referred to as internodal atrial myocardium, not tracts, as they do not appear to be histologically discrete specialized tracts. (medscape.com)
Stroke1
- In the case of dobutamine, this increase is usually not accompanied by marked increases in heart rate (although tachycardia is occasionally observed), and the cardiac stroke volume is usually increased. (drugs.com)
Persistent1
- Sinus tachycardia is commonly encountered in clinical practice and when persistent, can result in significant symptoms and impaired quality of life, warranting further evaluation. (medscape.com)
Mechanism1
- this accounts for a peak of 11-16% of tachycardias for which a mechanism is determined in young childhood. (medscape.com)
Medication1
- Group I underwent the most intensive preoperative management (balloon atrial septostomy and prostaglandin E1 medication). (e-cep.org)
Fibrous1
- It is at the apex of a triangle formed by the tricuspid annulus and the tendon of Todaro, which originates in the central fibrous body and passes posteriorly through the atrial septum to continue with the eustachian valve (see the images below). (medscape.com)
Ventricle1
- Fig. 2) An echocardiogram done showed a markedly dilated right atrium and a ventricle with a huge atrial secondum defect measuring about 6.55 cm. (ispub.com)
Right atrium4
- Cor triatriatum (or triatrial heart) is a congenital heart defect where the left (cor triatriatum sinistrum) or right atrium (cor triatriatum dextrum) is subdivided by a thin membrane, resulting in three atrial chambers. (ispub.com)
- It represents the junction between the sinus venarum , the "smooth" portion of the right atrium derived from the embryologic sinus venosus, and the heavily trabeculated right atrial appendage . (radiopaedia.org)
- Coursing between the caval orifices, it divides the pectinate muscle origin and the right atrial appendages in the right atrium. (radiopaedia.org)
- The SA node is located less than 1 mm from the epicardial surface, laterally in the right atrial sulcus terminalis at the junction of the anteromedial aspect of the superior vena cava (SVC) and the right atrium (RA). (medscape.com)