Adenosine-sensitive ventricular tachycardia. Clinical characteristics and response to catheter ablation.

Wilber, David J.; Baerman, Jeffrey M.; Olshansky, Brian; Kall, John G.; Kopp, Douglas E.

doi:10.1161/01.cir.87.1.126

Cited by 183 publications

(73 citation statements)

References 32 publications

(15 reference statements)

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“…Even though RFA has become the treatment of choice for idiopathic ventricular tachycardias resistant to clinical treatment 7,8,10,11 , its role in treating monomorphic symptomatic PVC is not yet well established. However, patients who satisfied the inclusion criteria in our study had been symptomatic for a long period and were not responsive to usual antiarrhythmic drugs.…”

Section: Discussionmentioning

confidence: 99%

Ablação com radiofreqüência de extra-sístoles da via de saída do ventrículo direito

Darrieux¹,

Scanavacca²,

Hachul³

et al. 2007

Arq. Bras. Cardiol.

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SummaryObjectives: To evaluate if radiofrequency catheter ablation is an effective procedure for the treatment of right ventricular outflow tract premature ventricular contraction (RVOT-PVC) and ascertain if it results in an improvement of symptoms.Methods: A prospective study with 30 consecutive patients (mean age 40 ± 13 years, 25 females), with no apparent structural cardiopathy, with very frequent (mean density of 1,263 ± 593/h) RVOT-PVC, symptomatic for more than one year (mean = 74 months) and resistant to antiarrhythmic drugs (3 ± 1.7, including beta-blockers), who underwent radiofrequency catheter ablation.Results: After the first procedure, there were 23 initial successful cases (76.6%) and 7 initial failures (23.4%). Four patients experienced relapses, two of whom did not undergo the second procedure. The second procedure was carried out in 9 patients (7 initial failures and 2 relapses), and there was success in 5 additional patients, one of them by epicardial access. The final success rate was 80% (24/30), and there were no major complications. After a mean follow-up of 14 ± 6 months, in the successful group there was a reduction greater than 90% in density of premature ventricular contractions (PVC) (24/24; p<0.0001) and a resulting absence of symptoms in the majority of patients (23/24; p<0.001).Conclusion: Radiofrequency catheter ablation is a safe and effective treatment for patients with persistent and symptomatic PVC with RVOT morphology.

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Section: Discussionmentioning

confidence: 99%

Ablação com radiofreqüência de extra-sístoles da via de saída do ventrículo direito

Darrieux¹,

Scanavacca²,

Hachul³

et al. 2007

Arq. Bras. Cardiol.

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“…(Jpn Heart J 2004; 45: 749-760) Key words: Radiofrequency catheter ablation, Idiopathic non-reentrant ventricular tachycardia, Right ventricular outflow tachycardia, Left ventricular outflow tachycardia, Ventricular unipolar potential RADIOFREQUENCY catheter ablation for the treatment of idiopathic nonreentrant ventricular tachycardia (VT) has already become an established method. [1][2][3][4][5] However, the precise landmarks with which we choose the optimal target site still remain controversial. The usefulness of unipolar potential for targeting the exit site of an arrhythmia circuit has been pointed out.…”

Section: Discussionmentioning

confidence: 99%

Ventricular Unipolar Potential in Radiofrequency Catheter Ablation of Idiopathic Non-Reentrant Ventricular Outflow Tachycardia

et al. 2004

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SUMMARYWe conducted this study to verify the efficacy of ventricular unipolar potential (Vuni) for ablation of idiopathic non-reentrant ventricular tachycardia (idio-VT). The morphology of V-uni at the successful and unsuccessful sites was analyzed in 27 patients with idio-VT [20 with right ventricular outflow tachycardia (RVOVT) and 7 with left ventricular outflow tachycardia (LVOVT)]. The usefulness of V-uni was compared with a pacemapping method and the V-QRS interval. The incidence of QS-pattern V-uni at the successful and best unsuccessful sites were 100 versus 25% (P = 0.000005) in RVOVT and 86 versus 29% (P = 0.10) in LVOVT. The pacemapping scores at the successful and best unsuccessful sites were 11.5/12 versus 11.2/12; NS in RVOVT, and 11.2/12 versus 11.1/12; NS in LVOVT. The mean V-QRS interval at the successful and the best unsuccessful sites were 22.5 ± 3.8 versus 21.6 ± 3.4 msec; NS in RVOVT, 15.1 ± 3.2 versus 12.5 ± 3.3 msec; NS in LVOVT. The sensitivity (sen) and specificity (spe) of QS-pattern V-uni to determine the optimum target sites were 1.0 and 0.89 in RVOVT and 0.86 and 0.83 in LVOVT, respectively. In the ablation of idio-VT, QS-pattern V-uni is simply and visually identifiable, is very useful, and should be given a high priority when determining the optimum target site. (Jpn Heart J 2004; 45: 749-760) Key words: Radiofrequency catheter ablation, Idiopathic non-reentrant ventricular tachycardia, Right ventricular outflow tachycardia, Left ventricular outflow tachycardia, Ventricular unipolar potential RADIOFREQUENCY catheter ablation for the treatment of idiopathic nonreentrant ventricular tachycardia (VT) has already become an established method. [1][2][3][4][5] However, the precise landmarks with which we choose the optimal target site still remain controversial. The usefulness of unipolar potential for targeting the exit site of an arrhythmia circuit has been pointed out.6) We hypothesized that, in idiopathic non-reentrant right or left ventricular outflow From the

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“…The basis of existing algorithms for RVOT arrhythmogenic foci localization is provided by studies on the comparative analysis of paced QRS complexes electrogram morphologies recorded during electrophysiology study (EPS) in certain RVOT regions [6][7][8]. During EPS additional ECG filters are often used.…”

Section: Introductionmentioning

confidence: 99%

Novel algorithm for arrhythmogenic focus localization in patients with right ventricular outflow tract arrhythmias

Pytkowski

Maciąg²,

Sterliński³

et al. 2014

Cardiol J

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Adenosine-sensitive ventricular tachycardia. Clinical characteristics and response to catheter ablation.

Abstract: Adenosine-sensitive ventricular tachycardia appears to arise from relatively discrete sites predominantly located in the free wall of the pulmonary infundibulum. The localized nature of this tachycardia renders it amenable to long-term cure by catheter ablation techniques.

Cited by 183 publications

References 32 publications

Ablação com radiofreqüência de extra-sístoles da via de saída do ventrículo direito

Ablação com radiofreqüência de extra-sístoles da via de saída do ventrículo direito

Ventricular Unipolar Potential in Radiofrequency Catheter Ablation of Idiopathic Non-Reentrant Ventricular Outflow Tachycardia

Novel algorithm for arrhythmogenic focus localization in patients with right ventricular outflow tract arrhythmias

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