Right ventricular tachycardia: clinical and electrophysiologic characteristics.

Buxton, Alfred E.; Waxman, Harvey L.; Marchlinski, F E; Simson, Michael B.; Cassidy, Dennis M.; Josephson, M E

doi:10.1161/01.cir.68.5.917

Cited by 336 publications

(146 citation statements)

References 34 publications

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“…We observed no differences in the ECG parameters studied between RVOT and normal controls, in agreement with previous findings. 11,12 However, some studies have demonstrated the presence of T-wave inversion in V 1 through V 3 in 6% to 20% of patients with RVOT. 10,13 Further studies are needed to ascertain the diagnostic value of T-wave inversion in right precordial leads in distinguishing ARVD/C from RVOT.…”

Section: Nasir Et Al Ecg In Arvd/cmentioning

confidence: 99%

Electrocardiographic Features of Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy According to Disease Severity

et al. 2004

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Background-The purpose of this study was to systematically study diagnostic and prognostic electrocardiographic (ECG) characteristics of arrhythmogenic right ventricle dysplasia/cardiomyopathy (ARVD/C). Methods and Results-The patient population included 50 patients with ARVD/C (27 males, 23 females; mean age 38Ϯ15 years). We also analyzed the ECG of 50 age-and gender-matched normal control subject and 28 consecutive patients who presented with right ventricular outflow tract (RVOT) tachycardia. Right bundle-branch block (RBBB) was present in 11 patients (22%). T-wave inversions in V 1 through V 3 were observed in 85% of ARVD/C patients in the absence of RBBB compared with none in RVOT and normal controls, respectively (PϽ0.0001); epsilon waves were seen in 33%, and a QRS duration Ն110 ms in V 1 through V 3 was present in 64% of patients. Among those without RBBB, our newly proposed criterion of "prolonged S-wave upstroke in V 1 through V 3" Ն55 ms was the most prevalent ECG feature (95%) and correlated with disease severity and induction of VT on electrophysiological study. This feature also best distinguished ARVD/C (diffuse and localized) from RVOT. Conclusions-A prolonged S-wave upstroke in V 1 through V 3 is the most frequent ECG finding in ARVD/C and should be considered as a diagnostic ECG marker.

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Section: Nasir Et Al Ecg In Arvd/cmentioning

confidence: 99%

Electrocardiographic Features of Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy According to Disease Severity

et al. 2004

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“…Among patients in whom VT originated in the right ventricle, the majority have had arrhythmogenic right ventricular dysplasia.1,2,5 Therefore, very little information has been available on the results of catheter ablation of idiopathic VT originating in the right ventricle. 8 The purpose of this study was to describe the long-term results of catheter ablation of idiopathic right VT in 10 patients who were followed for 15 months to 5.5 years after ablation.…”

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confidence: 99%

Long-term results of catheter ablation of idiopathic right ventricular tachycardia.

et al. 1990

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Ten consecutive patients with recurrent episodes of symptomatic, idiopathic, sustained monomorphic ventricular tachycardia (VT) originating in the right ventricle underwent an attempt at catheter ablation of the ventricular tachycardia. There were seven women and three men, with a mean age of 39±14 years (±SD). None of the patients had any evidence of structural heart disease. The VT had a left bundle branch block configuration and an inferior axis in each patient, and the mean cycle length was 313±75 msec. Based on the methods of induction of the VT and the response of the VT to verapamil, the VT mechanism was presumed to be reentry in six patients, triggered activity in three patients, and catecholamine-sensitive automaticity in one patient. Sites for ablation were guided by pace mapping, and an appropriate target site was identified in the right ventricular outflow tract in each patient. From one to three shocks of 100-360 J (mean total, 336±+195 J) were delivered from a defibrillator between the tip of the ablation catheter (cathode) and a patch electrode on the anterior chest (anode). An electrophysiology test 7-9 days after ablation demonstrated that VT was still inducible in only one patient, who was treated with amiodarone. One other patient had a recurrence of VT 3 weeks after ablation and was treated with verapamil. Eight of 10 patients were not treated with antiarrhythmic medications and have had no episodes of symptomatic VT during 15-68 months of follow-up (mean follow-up, 33-+-18 months). There were no acute or long-term complications. In conclusion, long-term success in preventing VT is achievable safely and in a high percentage of patients who have idiopathic right VT originating in the right ventricle. (Circulation 1990;82:2093-2099 Several studies have demonstrated that catheter ablation of ventricular tachycardia (VT) with electric shocks may be effective in preventing recurrences of VT.1-7 The majority of patients who have been the subjects of these studies have had structural heart disease; in most cases, the VT originated in the left ventricle. Among patients in whom VT originated in the right ventricle, the majority have had arrhythmogenic right ventricular dysplasia.1,2,5 Therefore, very little information has been available on the results of catheter ablation of idiopathic VT originating in the right ventricle.8The purpose of this study was to describe the long-term results of catheter ablation of idiopathic right VT in 10 patients who were followed for 15 months to 5.5 years after ablation.

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“…This arrhythmia appears at a relatively early age (30 -50 years), with equal distribution between sexes in LVOT, whereas RVOT is more common in females. Common symptoms are palpitations, dizziness and syncope (rare) [13]. Acute management can be achieved by vagal maneuver or adenosine, verapamil or cardioversion; and chronic management include medical therapy (mild to moderate symptoms: beta blockers, verapamil, diltiazem, anthiarrhytmic class IA, IC and III agents).…”

Section: Discussionmentioning

confidence: 99%

Risk Stratification in Frequent Ventricular Extrasystoles: The Importance of Cardiac Magnetic Resonance

2017

JCCR

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Ventricular tachycardia (VT) has a direct relationship with sudden cardiac death (SCD) and risk stratification is essential for further treatment. In a context of a structural normal heart, idiopathic VT is the principal suspicion. Cardiac magnetic resonance (CMR) is a powerfull tool to evaluate the anatomic substrate of ventricular arrhytmias. Myocarditis is a frequent cause of a arrhytmias, and is properly diagnosis by CMR. The presence of late gadolinium enhacement is relate with the diagnosis and pronostic of myocarditis.

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Right ventricular tachycardia: clinical and electrophysiologic characteristics.

Cited by 336 publications

References 34 publications

Electrocardiographic Features of Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy According to Disease Severity

Electrocardiographic Features of Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy According to Disease Severity

Long-term results of catheter ablation of idiopathic right ventricular tachycardia.

Risk Stratification in Frequent Ventricular Extrasystoles: The Importance of Cardiac Magnetic Resonance

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