Nilesh Mathuria1, Geru Wu2, Francia Rojas-Delgado2, Mossaab Shuraih2, Mehdi Razavi2, Andrew Civitello2, Leo Simpson2, Guilherme Silva2, Suwei Wang3, MacArthur Elayda3, Bharat Kantharia4, Steve Singh5, O H Frazier5, Jie Cheng2. 1. Division of Cardiology, Baylor St. Luke's Medical Center/Texas Heart Institute, PO Box 20345, Houston, TX, 77225-0345, USA. nimathuria@texasheart.org. 2. Division of Cardiology, Baylor St. Luke's Medical Center/Texas Heart Institute, PO Box 20345, Houston, TX, 77225-0345, USA. 3. Division of Biostatistics, Baylor St. Luke's Medical Center/Texas Heart Institute, Houston, TX, USA. 4. University of Texas Health Science Center at Houston, Houston, TX, USA. 5. Division of Cardiovascular Surgery, Baylor College of Medicine/Texas Heart Institute, Houston, TX, USA.
Abstract
PURPOSE: Patient selection and timing of percutaneous left ventricular assist device (pLVAD) insertion for maximal benefit during ventricular tachycardia (VT) ablation is not well defined. We aimed to assess the outcomes of pre-emptive and rescue use of pLVAD during VT ablation in patients with ischemic and non-ischemic cardiomyopathy. METHODS: Between January 2009 and October 2011, 93 patients underwent VT ablation. Three groups were compared: (1) Rescue group (n = 12)-patients who required emergent pLVAD insertion due to hemodynamic collapse during VT ablation, (2) Pre-emptive group (n = 24)-patients who had pre-ablation pLVAD insertion, and (3) Non-pLVAD group (n = 57)-patients who did not undergo pLVAD insertion. Procedural outcomes including 30-day mortality were compared. RESULTS: Thirty-day mortality was higher in the Rescue group compared to the Pre-emptive group (58 vs. 4 %, p = 0.003) and non-pLVAD (58 vs. 3 %, p = 0.001) group. There was no significant difference in 30-day mortality or long-term freedom of VT between the pre-emptive and non-pLVAD groups. CONCLUSIONS: Despite rescue pLVAD insertion, hemodynamic collapse during VT ablation is associated with a persistently high 30-day mortality. Further studies are warranted to predict hemodynamic collapse and to refine the role of pLVAD in this setting.
PURPOSE:Patient selection and timing of percutaneous left ventricular assist device (pLVAD) insertion for maximal benefit during ventricular tachycardia (VT) ablation is not well defined. We aimed to assess the outcomes of pre-emptive and rescue use of pLVAD during VT ablation in patients with ischemic and non-ischemic cardiomyopathy. METHODS: Between January 2009 and October 2011, 93 patients underwent VT ablation. Three groups were compared: (1) Rescue group (n = 12)-patients who required emergent pLVAD insertion due to hemodynamic collapse during VT ablation, (2) Pre-emptive group (n = 24)-patients who had pre-ablation pLVAD insertion, and (3) Non-pLVAD group (n = 57)-patients who did not undergo pLVAD insertion. Procedural outcomes including 30-day mortality were compared. RESULTS: Thirty-day mortality was higher in the Rescue group compared to the Pre-emptive group (58 vs. 4 %, p = 0.003) and non-pLVAD (58 vs. 3 %, p = 0.001) group. There was no significant difference in 30-day mortality or long-term freedom of VT between the pre-emptive and non-pLVAD groups. CONCLUSIONS: Despite rescue pLVAD insertion, hemodynamic collapse during VT ablation is associated with a persistently high 30-day mortality. Further studies are warranted to predict hemodynamic collapse and to refine the role of pLVAD in this setting.
Entities:
Keywords:
Ablation; Cardiomyopathy; Percutaneous left ventricular assist device; Ventricular tachycardia
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