PMID- 34950326 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220429 IS - 1941-6911 (Print) IS - 1941-6911 (Electronic) IS - 1941-6911 (Linking) VI - 13 IP - 4 DP - 2020 Dec TI - Cardiac Resynchronization Therapy in continuous flow Left Ventricular Assist Device Recipients: A Systematic Review and Meta-analysis from ELECTRAM Investigators. PG - 2441 LID - 10.4022/jafib.2441 [doi] LID - 2441 AB - INTRODUCTION: Whether cardiac resynchronization therapy (CRT) continues to augment left ventricular remodeling in patients with the continuous-flow left ventricular assist device (cf-LVAD) remains unclear. METHODS: We performed a systematic review and meta-analysis of all clinical studies examining the role of continued CRT in end-stage heart failure patients with cf-LVAD reporting all-cause mortality, ventricular arrhythmias, and ICD shocks. Mantel-Haenszel risk ratio (RR) random-effects model was used to summarize data. RESULTS: Eight studies (7 retrospective and 1 randomized) with a total of 1,208 unique patients met inclusion criteria. There was no difference in all-cause mortality (RR 1.08, 95% CI 0.86 - 1.35, p = 0.51, I2=0%), all-cause hospitalization (RR 1.01, 95% CI 0.76-1.34, p = 0.95, I(2)=11%), ventricular arrhythmias (RR 1.08, 95% CI 0.83 - 1.39, p = 0.58, I(2) =50%) and ICD shocks (RR 0.87, 95% CI 0.57 - 1.33, p = 0.52, I(2) =65%) comparing CRT versus non-CRT. Subgroup analysis demonstrated significant reduction in ventricular arrhythmias (RR 0.76, 95% CI 0.64 - 0.90, p = 0.001) and ICD shocks (RR 0.65, 95% CI 0.44 - 0.97, p = 0.04) in "CRT on" group versus "CRT off" group. CONCLUSIONS: CRT was not associated with a reduction in all-cause mortality or increased risk of ventricular arrhythmias and ICD shocks compared to non-CRT in cf-LVAD patients. It remains to be determined which subgroup of cf-LVAD patients benefit from CRT. The findings of our study are intriguing, and therefore, larger studies in a randomized prospective manner should be undertaken to address this specifically. FAU - Shah, Kuldeep AU - Shah K AD - Department of Cardiovascular Medicine, Section of Cardiac Electrophysiology, Beaumont Hospital, Oakland University William Beaumont School of Medicine, Royal Oak, Michigan. FAU - Karpe, Vallabh AU - Karpe V AD - Department of Medicine, Allegheny General Hospital, Pittsburgh, PA. FAU - K Turagam, Mohit AU - K Turagam M AD - Helmsley Electrophysiology Center, Icahn School of Medicine at Mount Sinai, New York, NY. FAU - Shah, Mahek AU - Shah M AD - Division of Cardiology, Section of Heart Failure and Transplantation Cardiology, Thomas Jefferson University Hospital, Philadelphia, PA. FAU - Natale, Andrea AU - Natale A AD - Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, TX. FAU - Gopinathannair, Rakesh AU - Gopinathannair R AD - Kansas City Heart Rhythm Institute and Research Foundation, Kansas City, KS. FAU - Lakkireddy, Dhanunjaya AU - Lakkireddy D AD - Kansas City Heart Rhythm Institute and Research Foundation, Kansas City, KS. FAU - Garg, Jalaj AU - Garg J AD - Cardiac Arrhythmia Service, Medical College of Wisconsin, Milwaukee, WI. LA - eng PT - Journal Article DEP - 20201231 PL - United States TA - J Atr Fibrillation JT - Journal of atrial fibrillation JID - 101514767 PMC - PMC8691299 OTO - NOTNLM OT - Arrhythmias OT - Cardiac resynchronization therapy OT - LVAD EDAT- 2021/12/25 06:00 MHDA- 2021/12/25 06:01 PMCR- 2020/12/31 CRDT- 2021/12/24 05:49 PHST- 2020/07/29 00:00 [received] PHST- 2020/08/05 00:00 [revised] PHST- 2020/08/15 00:00 [accepted] PHST- 2021/12/24 05:49 [entrez] PHST- 2021/12/25 06:00 [pubmed] PHST- 2021/12/25 06:01 [medline] PHST- 2020/12/31 00:00 [pmc-release] AID - 10.4022/jafib.2441 [doi] PST - epublish SO - J Atr Fibrillation. 2020 Dec 31;13(4):2441. doi: 10.4022/jafib.2441. eCollection 2020 Dec.