Percutaneous left ventricular assist devices in ventricular tachycardia ablation multicenter experience

Yeruva Madhu Reddy, Larry Chinitz, Moussa Mansour, T. Jared Bunch, Srijoy Mahapatra, Vijay Swarup, Luigi Di Biase, Sudharani Bommana, Donita Atkins, Roderick Tung, Kalyanam Shivkumar, J. David Burkhardt, Jeremy Ruskin, Andrea Natale, Dhanunjaya Lakkireddy

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


Background-Data on relative safety, efficacy, and role of different percutaneous left ventricular assist devices for hemodynamic support during the ventricular tachycardia (VT) ablation procedure are limited. Methods and Results-We performed a multicenter, observational study from a prospective registry including all consecutive patients (N=66) undergoing VT ablation with a percutaneous left ventricular assist devices in 6 centers in the United States. Patients with intra-aortic balloon pump (IABP group; N=22) were compared with patients with either an Impella or a TandemHeart device (non-IABP group; N=44). There were no significant differences in the baseline characteristics between both the groups. In non-IABP group (1) more patients could undergo entrainment/activation mapping (82% versus 59%; P=0.046), (2) more number of unstable VTs could be mapped and ablated per patient (1.05±0.78 versus 0.32±0.48; P<0.001), (3) more number of VTs could be terminated by ablation (1.59±1.0 versus 0.91±0.81; P=0.007), and (4) fewer VTs were terminated with rescue shocks (1.9±2.2 versus 3.0±1.5; P=0.049) when compared with IABP group. Complications of the procedure trended to be more in the non-IABP group when compared with those in the IABP group (32% versus 14%; P=0.143). Intermediate term outcomes (mortality and VT recurrence) during 12±5-month follow-up were not different between both groups. Left ventricular ejection fraction =15% was a strong and independent predictor of in-hospital mortality (53% versus 4%; P<0.001). Conclusions-Impella and TandemHeart use in VT ablation facilitates extensive activation mapping of several unstable VTs and requires fewer rescue shocks during the procedure when compared with using IABP.

Original languageEnglish (US)
Pages (from-to)244-250
Number of pages7
JournalCirculation: Arrhythmia and Electrophysiology
Issue number2
StatePublished - Apr 2014
Externally publishedYes


  • Catheter ablation
  • Intra-aortic balloon pumping
  • Tachycardia
  • Ventricular

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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