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AVNRTParoxysmalAblationJunctionalAVRTFlutterMultifocalAtrial tachycardiasRapid heartbeats caused by reentryNarrow complex tachycardiaArrhythmogenic Right VentricuSupraventricular tachycardiasNode2021AutomaticityReentrant tachycardiasPolymorphic ventricularArrhythmiaBradycardiaWolff-ParkiMyocardialCardiacAbnormallyOriginatesHeart rhythmRhythmCharacterized by sudden onsetMorphologiesAccessory pathwayMonomorphicComplexSudden

AVNRT7

• Automatic or triggered atrial tachycardia generally looks distinctly different, but it may have similar features to typical atrioventricular nodal reentry tachycardia (AVNRT) if it originates in the low atrial septal area and if 1:1 conduction occurs. (medscape.com)
• In orthodromic tachycardias (ie, due to a bypass tract), the P wave typically falls distinctly after the QRS complex, in contrast to the superimposition most commonly seen with AVNRT. (medscape.com)
• Orthodromic AV-reciprocating tachycardia (AVRT) tends to occur at an earlier age and more frequently in males than AVNRT. (medscape.com)
• A 45-yearold woman is presented with daily episodes of typical atrio-ventricular nodal re-entry tachycardias (AVNRT) and known Ehlers-Danlos syndrome type IV. (peeters-leuven.be)
• Cardiac ablation is commonly used for "simple" arrhythmias, like Wolff-Parkison-White Syndrome and atrioventricular nodal re-entry tachycardia (AVNRT), and is increasingly being used for more complex arrhythmias like ventricular tachycardia and atrial fibrillation. (jnj.com)
• Its causes include atrioventricular nodal reentrant tachycardia (AVNRT), orthodromic atrioventricular reentrant tachycardia (AVRT) utilizing an accessory pathway, and atrial tachycardia (AT). (acc.org)
• Background: Catheter ablation is an effective treatment for atrioventricular nodal reentrant tachycardia (AVNRT). (tmu.edu.tw)

Paroxysmal6

• AV node re-entry tachycardia is a rapid heart rhythm and the most common form of paroxysmal supraventricular tachycardia or PSVT, also referred to as SVT. (emoryhealthcare.org)
• Diltiazem converts paroxysmal supraventricular tachycardia (PSVT) to normal sinus rhythm by interrupting the reentry circuit in AV nodal reentrant tachycardias and reciprocating tachycardias, e.g. (nih.gov)
• This type of rhythm includes paroxysmal atrial tachycardia (PAT). (cvphysiology.com)
• Paroxysmal SVT is a regular, and typically narrow complex tachycardia that is characterized by sudden onset and termination. (acc.org)
• Can an Intranasal Calcium-Channel Blocker Convert Paroxysmal Supraventricular Tachycardia and Keep the Doctor Away? (psu.edu)
• As these entities have their own specific articles and treatment, only paroxysmal supraventricular tachycardia links here. (wikem.org)

Ablation9

• Single centre experience in a large cohort of patients undergoing epicardial ventricular tachycardia ablation. (ksw.ch)
• For example, persistent AV junctional rhythm, after a slow pathway ablation for AV node reentry is often highly symptomatic. (medscape.com)
• Background A new functional mapping strategy based on targeting deceleration zones (DZs) has become one of the most commonly used strategies within the armamentarium of substrate-based ablation methods for ventricular tachycardia (VT) in patients with structural heart disease. (researchgate.net)
• Background Cardiac magnetic resonance has demonstrated to accurately identify voltage conduction channels and it is nowadays an important tool to analyze the arrhythmic substrate, to predict ventricular tachycardia (VT) events and to aid VT ablation. (researchgate.net)
• Approaches to ventricular tachycardia ablation depend on several factors, including ventricular tachycardia inducibility, persistence, and clinical tolerability. (alliedacademies.org)
• This paper also reviews other treatment options for patients with ventricular tachycardia associated with coronary artery disease, including antiarrhythmic drug therapy, surgical ablation, and current indications for implantable cardioverter-defibrillators [ 4 ]. (alliedacademies.org)
• Cardiac surgery for structural heart disease (often involving the left atrium) and radiofrequency catheter ablation of atrial fibrillation have led to an increased incidence of regular atrial tachycardias, often presenting as atypical flutters. (repuestosautoluz.com)
• Targeted Ablation of Ventricular Tachycardia Guided by Wavefront Discontinuities During Sinus Rhythm: A New Functional Substrate Mapping Strategy. (uchicago.edu)
• Empiric ablation of polymorphic ventricular tachycardia/fibrillation in the absence of a mappable trigger: Prospective feasibility and efficacy of pacemap matching to defibrillator electrograms. (uchicago.edu)

Junctional4

• Atrial tachycardia (214/min) with atrioventricular (AV) block and complete AV dissociation from junctional tachycardia (140/min), together with repolarization changes of digitalis, suggest digitalis toxicity. (medscape.com)
• In junctional tachycardia an ectopic focus in the AV junction acts as the primary pacemaker. (vin.com)
• It is frequently impossible to differentiate atrial tachycardia from a junctional tachycardia. (vin.com)
• Specific diagnoses falling into this category include Wolff-Parkinson-White Syndrome (WPW) and permanent junctional reciprocating tachycardia (PJRT). (kidshealth.org.nz)

AVRT2

• In young males, AVRT tends to be a more rapid supraventricular tachycardia (SVT) than are most AVNRTs. (medscape.com)
• The most common tachycardia in patients with the Wolff-Parkinson-White (WPW) syndrome is orthodromic AVRT. (acc.org)

Flutter6

• Patients with adult congenital heart disease and atrial tachycardia/flutter should be treated with oral anticoagulation using the same risk stratification schemes as for AF. (acc.org)
• SVT terminology can be confusing, as some references consider SVT to be any rhythm originating above the ventricles (e.g. sinus tachycardia, MAT, atrial flutter, atrial fibrillation, PSVT, etc). (wikem.org)
• Atrial flutter (AFL) is a regular, macro reentrant arrhythmia traditionally defined as a supraventricular tachycardia with an atrial rate of 240-320 beats per minute (bpm). (repuestosautoluz.com)
• Atrial flutter is a macro-reentrant tachycardia and depending on the site of origin can be typical or atypical atrial flutter. (repuestosautoluz.com)
• Atrial flutter, atrial tachycardias, and atrial fibrillation are the main sustained atrial tachycardias. (unimore.it)
• Atrial flutter is the clinical and theoretical model of reentry. (unimore.it)

Multifocal2

• Multifocal atrial tachycardia is often associated with pulmonary disease or medications such as digoxin. (medscape.com)
• The rhythm is regular unless a multifocal tachycardia is present. (vin.com)

Atrial tachycardias2

• Electrocardiography (ECG) identifies the site of origin of focal atrial tachycardias and the mechanism of these arrhythmias. (unimore.it)
• Atrial Tachycardias are A/V node independent. (crashingpatient.com)

Rapid heartbeats caused by reentry2

• Abnormally rapid heartbeats caused by reentry circuit in or around the sinoatrial node . (lookfordiagnosis.com)
• Abnormally rapid heartbeats caused by reentry of atrial impulse into the dual (fast and slow) pathways of ATRIOVENTRICULAR NODE . (nih.gov)

Narrow complex tachycardia1

• A narrow complex tachycardia with intermittent atrioventricular dissociation: what is the mechanism? (medscape.com)

Arrhythmogenic Right Ventricu1

• Spatial and transmural properties of the reentrant ventricular tachycardia circuit in arrhythmogenic right ventricular cardiomyopathy: Simultaneous epicardial and endocardial recordings. (uchicago.edu)

Supraventricular tachycardias3

• The therapeutic benefits of diltiazem in supraventricular tachycardias are related to its ability to slow AV nodal conduction time and prolong AV nodal refractoriness. (nih.gov)
• Tachycardias that involve the upper chambers are called supraventricular tachycardias (SVT). (kidshealth.org.nz)
• Supraventricular tachycardias are usually not dangerous. (kidshealth.org.nz)

Node4

• This tachycardia originates from the AV node as an automatic rhythm. (medscape.com)
• Atrioventricular node reentry tachycardia is an incompletely understood substrate for supraventricular tachycardia. (wustl.edu)
• Van Hare, GF 2008, ' Developmental aspects of atrioventricular node reentry tachycardia ', Journal of Electrocardiology , vol. 41, no. 6, pp. 480-482. (wustl.edu)
• Diltiazem exhibits frequency (use) dependent effects on AV nodal conduction such that it may selectively reduce the heart rate during tachycardias involving the AV node with little or no effect on normal AV nodal conduction at normal heart rates. (nih.gov)

20211

• While the 22mm Harmony valve Early Feasibility Study demonstrated ventricular tachycardia (VT) in only 5% of patients, little is known about ventricular arrhythmias after TPVR with the larger 25mm valve (TPV25).METHODS: A single center review was performed of patients with TPV25 implant from 2020 to 2021. (stanfordchildrens.org)

Automaticity2

• The mechanism for BiVT is not as well known as other forms of ventricular tachycardia but appears to include typical mechanisms including triggered activity from afterdepolarizations, abnormal automaticity, or reentry. (nih.gov)
• Reentry, increased automaticity, and triggered activity are atrial arrhythmia's main mechanisms. (unimore.it)

Reentrant tachycardias1

• Ablative procedures for atrial fibrillation have created several new reentrant tachycardias. (unimore.it)

Polymorphic ventricular1

• It was first reported in the 1920s as a complication of digoxin, and since then, it has been reported in other conditions including fulminant myocarditis, sarcoidosis, catecholaminergic polymorphic ventricular tachycardia, and Andersen-Tawil syndrome. (nih.gov)

Arrhythmia2

• Ventricular tachycardia may be a life threatening arrhythmia. (vin.com)
• For the purposes of this document, the term "supraventricular tachycardia" (SVT) includes any arrhythmia originating above and including the bundle of His, and specifically excludes atrial fibrillation (AF). (acc.org)

Bradycardia2

• The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly. (medlineplus.gov)
• Sick sinus syndrome - a disturbance of SA nodal function that results in a markedly variable rhythm (cycles of bradycardia and tachycardia). (cvphysiology.com)

Wolff-Parki1

• 10. Wolff-Parkinson-White syndrome and atrioventricular nodal re-entry tachycardia in a Swedish population: consequences on health-related quality of life. (nih.gov)

Myocardial2

• Risk factors for ventricular tachycardia include hypertension, previous myocardial infarction, Chronic Obstructive Pulmonary Disease (COPD), and ST-segment changes at presentation. (alliedacademies.org)
• Despite significant progress in population education and management of myocardial infarction, the risk of ventricular tachycardia in the general population with coronary artery disease remains a major concern in clinical practice. (alliedacademies.org)

Cardiac5

• Sinus tachycardia is probably the most common rhythm detected in small animal cardiac patients due to the excited state of most patients. (vin.com)
• Ventricular tachycardia is most commonly associated with ischemic heart disease or other forms of structural heart disease that are associated with the risk of sudden cardiac death. (alliedacademies.org)
• Ventricular tachycardia and ventricular fibrillation cause most cases of sudden cardiac death and are estimated to kill people annually in the United States. (alliedacademies.org)
• Ventricular tachycardia is a significant cause of Sudden Cardiac Death (SCD) and a leading cause of mortality and morbidity in patients with structural heart disease. (alliedacademies.org)
• Ventricular tachycardia is among the major causes of cardiac failure, thereby increasing the hospitalization rate. (graphicalresearch.com)

Abnormally2

• An abnormally fast heart rhythm (tachycardia) can arise from the upper or lower chambers of the heart. (kidshealth.org.nz)
• An abnormally fast heart rhythm (tachycardia) can arise from the upper or lower chambers of the heart, or be a 'circuit' made up of the upper and lower chambers. (kidshealth.org.nz)

Originates1

• Atrioventricular Nodal Reentrant Tachycardia is a type of supraventricular tachycardia (ie it originates above the level of the Bundle of His) and is the commonest cause of palpitations in patients with hearts exhibiting no structurally abnormality. (crashingpatient.com)

Heart rhythm1

• 2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. (acc.org)

Rhythm2

• Wide complex tachycardia with atrioventricular dissociation and QRS morphology identical to that of sinus rhythm: a manifestation of bundle branch reentry. (medscape.com)
• High-Density Grid Catheter for Detailed Mapping of Sinus Rhythm and Scar-Related Ventricular Tachycardia: Comparison With a Linear Duodecapolar Catheter. (uchicago.edu)

Characterized by sudden onset1

• It is characterized by sudden onset and offset episodes of tachycardia with a heart rate of 100-150 beats per minute. (lookfordiagnosis.com)

Morphologies1

• Bidirectional ventricular tachycardia (BiVT) is a rare form of ventricular tachycardia that manifests on surface electrocardiogram by dual QRS morphologies alternating on a beat-to-beat basis. (nih.gov)

Accessory pathway1

• Sudden death is more likely to occur in patients with a history of tachycardia (i.e., with prior symptoms), but may be the first manifestation of the accessory pathway. (acc.org)

Monomorphic1

• Ventricular fibrillation is the major cause of death during the acute phase of ischemia, and sustained monomorphic ventricular tachycardia due to scar tissue-generated re-entry is particularly associated with poor left ventricular ejection. (alliedacademies.org)

Complex2

• What is a wide complex tachycardia? (ekgrhythm.com)
• What are the probabilities of a Wide Complex Tachycardia (WCT)? (ekgrhythm.com)

Sudden1

• Ventricular tachycardia is an important cause of sudden death. (alliedacademies.org)