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Tachycardia, SupraventricularTachycardiaTachycardia, VentricularTachycardia, ParoxysmalTachycardia, Atrioventricular Nodal ReentryTachycardia, SinusTachycardia, Ectopic AtrialElectrocardiographyCatheter AblationTachycardia, Ectopic JunctionalAnti-Arrhythmia AgentsAtrioventricular NodeHeart Conduction SystemWolff-Parkinson-White SyndromeElectrophysiologic Techniques, CardiacArrhythmias, CardiacCardiac Pacing, ArtificialTachycardia, Sinoatrial Nodal ReentryBundle of HisPostural Orthostatic Tachycardia SyndromeTachycardia, ReciprocatingFlecainideAtrial Premature ComplexesAtrial FlutterHydrops FetalisElectrocardiography, AmbulatoryAmiodaroneHeart RateBody Surface Potential MappingCardiac Complexes, PrematurePre-Excitation SyndromesVentricular FibrillationAccessory Atrioventricular BundleDigoxinDefibrillators, ImplantableAtrial FibrillationHeart AtriaVentricular Premature ComplexesHeart BlockFetal DiseasesElectric CountershockProcainamideSotalolTreatment OutcomeFollow-Up StudiesSyncopeHeart VentriclesElectrocoagulationElectrophysiologyBundle-Branch BlockAtrioventricular BlockCryosurgeryPropafenoneDeath, Sudden, CardiacVerapamilRecurrenceEndocardiumBradycardiaPacemaker, ArtificialSinoatrial NodeTime FactorsHeart Rate, FetalCardiomyopathiesRetrospective StudiesDogsEchocardiographyAdrenergic beta-AntagonistsEpicardial MappingHeartDisopyramideCardiomyopathy, DilatedHeart Defects, CongenitalHemodynamicsProspective StudiesCardiac CatheterizationAdenosineRefractory Period, ElectrophysiologicalBlood PressureArrhythmogenic Right Ventricular DysplasiaAtrial FunctionHydroxyzineAntazolineCardiac Surgical ProceduresInfant, NewbornFinancial AuditPostoperative ComplicationsPulmonary VeinsArrhythmia, SinusMyocardial InfarctionIsoproterenolPropanolaminesFetal DistressFluoroscopyPericardiumSick Sinus SyndromeCardiac ElectrophysiologyInjections, IntravenousEbstein AnomalyTricuspid AtresiaEquipment Failure
ArrhythmiaJunctional reciprocatiAVRTReentrantFibrillationArrhythmiasAVNRTDifferent types of supraventricular tachycardiaDevelop due to suprComplex tachycardiaTachyarrhythmiasParoxysmalReentryPatientsConductionCatheter AblationPVCsAtriaTreatment of supraventricularRhythmsDiastolic dysfunctionMultifocalCardiomyopathyDiagnosisBeats per miAblationInfantsAccessorySinus arrestNodeManeuversHeartbeatsEpisodesWavesAorticChaoticVentriclesChambersRapid
Arrhythmia13
  • Paroxysmal supraventricular tachycardia (PSVT) is a type of abnormal heart rhythm, or arrhythmia . (hopkinsmedicine.org)
  • The presence of this extra path can encourage a "short circuit" arrhythmia known as an atrioventricular reciprocating tachycardia (AVRT). (hopkinsmedicine.org)
  • Supraventricular tachycardia is the most common type of arrhythmia in infants and children, but it occurs in people of all ages. (naplesheartrhythm.com)
  • The type of arrhythmia depends on the irregularity it causes and in what part of your heart - the upper (atria) or lower (ventricular) chambers. (prweb.com)
  • We aimed to evaluate retina and optic disc microvascularity with optical coherence tomography angiography before and after the catheter ablation process in patients with ventricular arrhythmia. (bvsalud.org)
  • METHODS: A total of 40 eyes of 21 ventricular arrhythmia patients were included in this cross-sectional study. (bvsalud.org)
  • RESULTS: The mean age of ventricular arrhythmia patients was 53.48±13.02 years. (bvsalud.org)
  • Ventricular arrhythmia (VA) may be an isolated and completely benign finding in children, a marker of serious systemic disease or myopathy, or a mechanism for syncope and sudden cardiac death (SCD). (medscape.com)
  • Figure 18.2 shows the morphology of atrial activation waves in the different supraventricular tachycardias with regular and monomorphic waves (see also Table 15.5 ) and Figures 18.3 and 18.4 show the different algorithms that, depending on whether atrial activity is present or not, allow us to determine the type of active supraventricular arrhythmia with narrow QRS and regular ( Figure 18.3 ) or irregular RR ( Figure 18.4 ). (thoracickey.com)
  • Cardiac arrhythmia is an irregular heartbeat in which the heart beats are too fast (tachycardia), too slow (bradycardia), or in an abnormal rhythm. (holisticly.com)
  • Carbon monoxide also increases susceptibility to ventricular fibrillation and ventricular arrhythmia. (holisticly.com)
  • While class I antiarrhythmic drugs are effective in treating this form of tachycardia, there is a reluctance to use these agents, especially in patients with structural heart disease, because of potential proarrhythmia or undesirable side effects-as seen in the cardiac arrhythmia suppression trial (CAST). (bmj.com)
  • These maneuvers might be effective at terminating the arrhythmia but in this type of tachycardia the arrhythmia is very likely to recur. (pacesep.org)
Junctional reciprocati2
AVRT8
  • The typical supraventricular tachycardia associated with WPW syndrome is atrioventricular reentrant or reciprocating tachycardia (AVRT). (ccasociety.org)
  • A stable narrow complex tachycardia typically results from orthodromic AVRT with antegrade conduction via the AVN followed by retrograde conduction along the AP. (ccasociety.org)
  • Orthodromic AVRT occurs in 90 to 95 percent of reentrant tachycardias linked with WPW syndrome. (ccasociety.org)
  • A stable wide-complex tachycardia results from antidromic AVRT with antegrade conduction over the accessory pathway and onto the ventricles followed by retrograde conduction back to the atria via the AVN. (ccasociety.org)
  • Wide complex tachycardia may also result from orthodromic AVRT with aberrant QRS conduction resulting in a wide QRS complex. (ccasociety.org)
  • AVRT (AtrioVentricular Reciprocating Tachycardia): This is the type of SVT that patients with Wolf-Parkinson-White (WPW) develop-they are usually diagnosed in childhood, but occasionally the diagnosis is made as an adult. (prweb.com)
  • Methods: We performed RFCA at the AC in 19 patients (male 64.7%, 46.9 ± 21.9 years old) with mid- to anteroseptal SVTs (12 atrial tachycardias [AT], 7 atrioventricular reciprocating tachycardia [AVRT]), and analyzed the prevalence, electrophysiologic findings, clinical outcome, and compilation risk. (ewha.ac.kr)
  • Atrio-ventricular re-entrant tachycardia (AVRT). (cincinnatichildrens.org)
Reentrant11
  • Atrioventricular node reentrant tachycardia (AVNRT) is a form of reentrant rhythm within the region of the atrioventricular (AV) node. (medscape.com)
  • Reentrant rhythms account for most episodes of supraventricular tachycardia (SVT) in children. (medscape.com)
  • it is not synonymous with AV node reentrant tachycardia (AVNRT) because the incidental finding of dual AV nodal physiology does not predict AVNRT in children and adolescents after successful accessory pathway ablation. (medscape.com)
  • AVNRT (AtrioVentricular Nodal Reentrant Tachycardia): An electrical short circuit exists inside a part of the heart called the AV node. (prweb.com)
  • Reentrant supraventricular tachycardias (SVT) involve reentrant pathways with a component above the bifurcation of the His bundle. (msdmanuals.com)
  • If these maneuvers are ineffective, treatment is with IV adenosine or nondihydropyridine calcium channel blockers for narrow QRS rhythms or for wide QRS rhythms known to be a reentrant SVT with aberrant conduction that requires atrioventricular nodal conduction. (msdmanuals.com)
  • AV nodal reentrant tachycardia occurs most often in otherwise healthy patients. (msdmanuals.com)
  • Accessory pathway reentrant tachycardia involves tracts of conducting tissue that partially or totally bypass normal AV connections (bypass tracts). (msdmanuals.com)
  • Reentrant, automatic, or triggered mechanisms may cause VA, just as these mechanisms cause supraventricular tachycardia (SVT) and other arrhythmias. (medscape.com)
  • In clinical practice, reentrant rhythms are triggered by premature beats, and the tachycardia is often terminated with direct-current (DC) cardioversion. (medscape.com)
  • [ 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)
Fibrillation11
Arrhythmias8
  • Supraventricular tachycardia refers to several types of arrhythmias that share two key qualities. (naplesheartrhythm.com)
  • Fast arrhythmias that originate from the lower chambers (i.e., the ventricles) are called ventricular tachycardias. (cincinnatichildrens.org)
  • In particular, when the atrial rate is around 200 bpm, it is challenging to distinguish between atypical flutter and tachycardia due to an atrial macro‐reentry (MAT‐MR). In fact, these two arrhythmias could be considered the same (see Chapter 15 , Atrial flutter: ECG findings) from a morphological point of view, but different in terms of definitive treatment with ablation. (thoracickey.com)
  • The majority of sudden cardiac death events in athletes are due to ventricular arrhythmias as a result of underlying molecular and/or structural level pathologic substrate. (scienceopen.com)
  • Unfortunately, the precise cause of death is frequently not determined definitively, but it is well accepted that the root cause frequently stems from ventricular arrhythmias as a result of an underlying molecular and/or structural level pathologic substrate. (scienceopen.com)
  • Benign fetal arrhythmias, including premature contractions and sinus tachycardia, do not need any treatment before and after birth. (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)
  • 11 beats per minute (bpm) and sinusal tachycardias, did not need any treatment before or after birth, whereas those with postnatal arrhythmias associated with hemodynamic fluctuations require interventions, as they may lead to preterm delivery in some occasions [ 9 ]. (biomedcentral.com)
AVNRT3
Different types of supraventricular tachycardia1
Develop due to supr1
Complex tachycardia3
Tachyarrhythmias3
  • The aims of this study were to (1) examine development of sinus node dysfunction (SND), atrial and ventricular tachyarrhythmias, and (2) study progression of atrioventricular conduction abnormalities in young adult patients with repaired cAVSD. (1library.net)
  • Patients' medical files were evaluated for occurrence of SND, atrioventricular conduction block (AVB), atrial and ventricular tachyarrhythmias. (1library.net)
  • Patients with suspected supraventricular or ventricular tachyarrhythmias, or both, were referred for a routine electrophysiological evaluation. (bmj.com)
Paroxysmal1
  • 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)
Reentry1
  • Ventricular Premature Beats (VPB) Ventricular premature beats (VPB) are single ventricular impulses caused by reentry within the ventricle or abnormal automaticity of ventricular cells. (msdmanuals.com)
Patients11
  • In many patients, the tachycardia episode can be stopped by bearing down or rubbing the carotid artery. (hopkinsmedicine.org)
  • 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)
  • Pediatric patients with surgical ventricular scars, such as those with postoperative ventricular tachycardia (VT) after repair of tetralogy of Fallot, are commonly cited examples of this mechanism. (medscape.com)
  • This tachycardia may be seen in patients who have had recent surgery involving this area, for example repair of a ventricular septal defect (VSD) , atrioventricular septal defect or tetralogy of Fallot . (cincinnatichildrens.org)
  • Fifty one patients with electrically inducible atrioventricular re-entrant tachycardia were allocated to one of five doses of dofetilide (1.5, 3, 6, 9, and 15 μg/kg), two thirds of the dofetilide dose being given over a 15 minute loading period and the remainder over a 45 minute maintenance period. (bmj.com)
  • MAIN OUTCOME MEASURE Responders were defined as patients in whom dofetilide prevented reinduction of atrioventricular re-entrant tachycardia at the end of the infusion. (bmj.com)
  • Treatment related side effects were reported in four patients, one with a new sustained incessant supraventricular tachycardia. (bmj.com)
  • CONCLUSIONS Dofetilide shows promise as an agent for the prevention of atrioventricular re-entrant tachycardia in patients without structural heart disease. (bmj.com)
  • Our goal in this study was to assess the efficacy of intravenous dofetilide, in five different dosing regimens, for treating patients with inducible atrioventricular re-entrant tachycardia, by determining its ability to prevent reinduction of the tachycardia. (bmj.com)
  • 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)
  • 2019 ESC Guidelines for the management of patients with supraventricular tachycardiaThe Task Force for the management of patients with supraventricular tachycardia of the European Society of Cardiology (ESC). (nih.gov)
Conduction3
  • For example, the administration of neostigmine which causes slowing of the heart rate due to decreased atrioventricular nodal conduction can divert conduction to the accessory pathway. (ccasociety.org)
  • the ventricular rate may be less when AV conduction is incomplete. (rjmatthewsmd.com)
  • Because of its selective class III antiarrhythmic effect, dofetilide has no effect on atrioventricular conduction or sinus node function. (bmj.com)
Catheter Ablation1
  • However, radiofrequency catheter ablation (RFCA) at the AC for the treatment of supraventricular tachyarrhythmia (SVT) has limited experience. (ewha.ac.kr)
PVCs1
  • Isolated premature ventricular contractions (PVCs) are reasonably common. (medscape.com)
Atria3
  • You develop a supraventricular tachycardia when the signal begins somewhere in the atria other than the SA node. (naplesheartrhythm.com)
  • Atrial premature beats Various rhythms result from supraventricular foci (usually in the atria). (msdmanuals.com)
  • The signal then moves down to a second node between the atria and ventricles called the atrioventricular (AV) node. (holisticly.com)
Treatment of supraventricular1
  • Pharmacological treatment of supraventricular tachycardia remains a common approach despite the increased use of radiofrequency ablation. (bmj.com)
Rhythms1
  • If you develop an irregular rapid heart rate, you can receive prompt and comprehensive care at Naples Heart Rhythm Specialists, P.A., where the doctors are experts in the diagnosis and treatment of abnormal heart rhythms like supraventricular tachycardia. (naplesheartrhythm.com)
Diastolic dysfunction1
  • Hypertrophic Cardiomyopathy Hypertrophic cardiomyopathy is a congenital or acquired disorder characterized by marked ventricular hypertrophy with diastolic dysfunction (eg, due to valvular aortic stenosis, coarctation. (msdmanuals.com)
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)
Cardiomyopathy2
  • 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)
  • Due to this, the heart muscle can become tired and function more poorly, which is called tachycardia-induced cardiomyopathy. (pacesep.org)
Diagnosis2
  • If the exact mechanism of wide complex is not certain, the presumptive diagnosis should be ventricular tachycardia and treated accordingly. (ccasociety.org)
  • Supraventricular tachycardia: An overview of diagnosis and management. (nih.gov)
Beats per mi1
  • Supraventricular tachycardia (SVT) is an abnormally increased heart rate (over 100 beats per minute at rest) with origin above the level of the ventricles. (nih.gov)
Ablation1
  • If more tachycardia is seen, your doctor may decide to do more ablation - and then repeat the waiting period afterwards. (pacesep.org)
Infants1
Accessory1
  • Dofetilide increased the atrial and ventricular effective refractory periods, as well as the antegrade and retrograde effective refractory period of the accessory pathway. (bmj.com)
Sinus arrest1
  • Sinus node disease encompasses a wide range of clinical presentations from sinus bradycardia to sinus arrest or bradycardia-tachycardia syndrome ( 4 ). (escardio.org)
Node3
  • The AP conducts electrical impulses faster resulting in a shorter PR interval in the surface ECG and has a shorter refractory period than the atrioventricular node (AVN). (ccasociety.org)
  • The atrio-ventricular node (A-V node) is located between the upper and lower chambers of the heart. (cincinnatichildrens.org)
  • There are several classification systems for supraventricular tachycardia , based on site of origin, QRS width, pulse regularity, and AV node dependence. (wikidoc.org)
Maneuvers1
Heartbeats1
  • Although present from birth, the tachycardias (rapid heartbeats) that result from the abnormal electrical connection often take years or decades before they become a problem. (hopkinsmedicine.org)
Episodes1
  • The clinical manifestations of WPW syndrome reflect the associated tachyarrhythmia episodes-rather than the anomalous ventricular excitation per se. (medscape.com)
Waves2
  • The R' waves are lost when the tachycardia ends, demonstrating that the R' wave is not associated with ventricular depolarization. (medscape.com)
  • By using Doppler ultrasound, simultaneous recording of the atrial and ventricular waves can be obtained. (biomedcentral.com)
Aortic1
  • Background: Some outflow tract ventricular tachycardias (VTs) are known to be successfully ablated from the aortic cusp (AC). (ewha.ac.kr)
Chaotic1
Ventricles2
  • And second, they're caused by abnormal electrical activity that begins above the ventricles (supraventricular), which are the two lower chambers of your heart. (naplesheartrhythm.com)
  • When the source of the fast heart rhythm is the lower chambers (ventricles), ventricular tachycardia (VT) is present. (cincinnatichildrens.org)
Chambers1
Rapid1
  • The short refractory period leads to more rapid transmission of atrial impulses, which can result in supraventricular tachycardia. (ccasociety.org)