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Clinical characteristics and acute results of catheter ablation for outflow tract ventricular tachycardia or premature beats

Author
Organization
Abstract
Contemporary outcome data of catheter ablation for outflow tract tachycardia (OTT) and ventricular premature beats (VPBs) are rare. The aim of this study was to describe the clinical characteristics, the acute procedure success rate, and the long-term survival of patients who underwent an ablation procedure for OTT or VPBs. The study was a single-center retrospective cohort study. All 82 consecutive OTT and VPB first ablation procedures between 1999 and 2009 were included. Patients with structural heart disease were excluded. Mean age was 46 +/- 13 years. Forty-three percent of the patients were male. All patients were alive after a median follow-up duration of 31 months (interquartile range, 14-65 months). Eighty-nine percent suffered from palpitations and 12 % had a history of syncope. Ventricular tachycardia was documented in 73 % and monomorphic VPBs in 99 %. Seventy-three percent of the patients were ablated in the right ventricular outflow tract, 15 % in the left ventricular outflow tract, and 12 % in the coronary cusps. Radiofrequency energy was used in 95 % of the patients, cryo energy in 9 %. Acute success was achieved in 78 %. Six patients (7 %) experienced a complication (five pericardial effusions, one pseudo-aneurysm of the femoral artery). Three patients needed pericardiocentesis (4 %). Ablation for OTT and VPB is successful in the vast majority of cases, with a low but still existing complication rate. Long-term survival was excellent, underscoring the benign nature of this arrhythmia.
Keywords
Acute success, Complications, Catheter ablation, Ventricular premature beats, Outflow tract tachycardia, Long-term survival, STRUCTURAL HEART-DISEASE, TERM FOLLOW-UP, ELECTROPHYSIOLOGIC CHARACTERISTICS, RADIOFREQUENCY ABLATION, SUDDEN-DEATH, ARRHYTHMIAS, CUSP, CARDIOMYOPATHY, EXTRASYSTOLES, PREDICTORS

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MLA
Valk, Suzanne DA et al. “Clinical Characteristics and Acute Results of Catheter Ablation for Outflow Tract Ventricular Tachycardia or Premature Beats.” JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY 35.3 (2012): 301–309. Print.
APA
Valk, S. D., de Groot, N. M., Szili-Torok, T., Van Belle, Y. L., Res, J. C., & Jordaens, L. (2012). Clinical characteristics and acute results of catheter ablation for outflow tract ventricular tachycardia or premature beats. JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY, 35(3), 301–309.
Chicago author-date
Valk, Suzanne DA, Natasja MS de Groot, Tamas Szili-Torok, Yves LE Van Belle, Jan CJ Res, and Luc Jordaens. 2012. “Clinical Characteristics and Acute Results of Catheter Ablation for Outflow Tract Ventricular Tachycardia or Premature Beats.” Journal of Interventional Cardiac Electrophysiology 35 (3): 301–309.
Chicago author-date (all authors)
Valk, Suzanne DA, Natasja MS de Groot, Tamas Szili-Torok, Yves LE Van Belle, Jan CJ Res, and Luc Jordaens. 2012. “Clinical Characteristics and Acute Results of Catheter Ablation for Outflow Tract Ventricular Tachycardia or Premature Beats.” Journal of Interventional Cardiac Electrophysiology 35 (3): 301–309.
Vancouver
1.
Valk SD, de Groot NM, Szili-Torok T, Van Belle YL, Res JC, Jordaens L. Clinical characteristics and acute results of catheter ablation for outflow tract ventricular tachycardia or premature beats. JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY. 2012;35(3):301–9.
IEEE
[1]
S. D. Valk, N. M. de Groot, T. Szili-Torok, Y. L. Van Belle, J. C. Res, and L. Jordaens, “Clinical characteristics and acute results of catheter ablation for outflow tract ventricular tachycardia or premature beats,” JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY, vol. 35, no. 3, pp. 301–309, 2012.
@article{8101186,
  abstract     = {Contemporary outcome data of catheter ablation for outflow tract tachycardia (OTT) and ventricular premature beats (VPBs) are rare. The aim of this study was to describe the clinical characteristics, the acute procedure success rate, and the long-term survival of patients who underwent an ablation procedure for OTT or VPBs. 
The study was a single-center retrospective cohort study. All 82 consecutive OTT and VPB first ablation procedures between 1999 and 2009 were included. Patients with structural heart disease were excluded. 
Mean age was 46 +/- 13 years. Forty-three percent of the patients were male. All patients were alive after a median follow-up duration of 31 months (interquartile range, 14-65 months). Eighty-nine percent suffered from palpitations and 12 % had a history of syncope. Ventricular tachycardia was documented in 73 % and monomorphic VPBs in 99 %. Seventy-three percent of the patients were ablated in the right ventricular outflow tract, 15 % in the left ventricular outflow tract, and 12 % in the coronary cusps. Radiofrequency energy was used in 95 % of the patients, cryo energy in 9 %. Acute success was achieved in 78 %. Six patients (7 %) experienced a complication (five pericardial effusions, one pseudo-aneurysm of the femoral artery). Three patients needed pericardiocentesis (4 %). 
Ablation for OTT and VPB is successful in the vast majority of cases, with a low but still existing complication rate. Long-term survival was excellent, underscoring the benign nature of this arrhythmia.},
  author       = {Valk, Suzanne DA and de Groot, Natasja MS and Szili-Torok, Tamas and Van Belle, Yves LE and Res, Jan CJ and Jordaens, Luc},
  issn         = {1383-875X},
  journal      = {JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY},
  keywords     = {Acute success,Complications,Catheter ablation,Ventricular premature beats,Outflow tract tachycardia,Long-term survival,STRUCTURAL HEART-DISEASE,TERM FOLLOW-UP,ELECTROPHYSIOLOGIC CHARACTERISTICS,RADIOFREQUENCY ABLATION,SUDDEN-DEATH,ARRHYTHMIAS,CUSP,CARDIOMYOPATHY,EXTRASYSTOLES,PREDICTORS},
  language     = {eng},
  number       = {3},
  pages        = {301--309},
  title        = {Clinical characteristics and acute results of catheter ablation for outflow tract ventricular tachycardia or premature beats},
  url          = {http://dx.doi.org/10.1007/s10840-012-9706-1},
  volume       = {35},
  year         = {2012},
}

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