PMID- 22510423 OWN - NLM STAT- MEDLINE DCOM- 20121005 LR - 20181201 IS - 1879-0844 (Electronic) IS - 1388-9842 (Linking) VI - 14 IP - 6 DP - 2012 Jun TI - Meta-analysis of randomized controlled trials evaluating left ventricular vs. biventricular pacing in heart failure: effect on all-cause mortality and hospitalizations. PG - 652-60 LID - 10.1093/eurjhf/hfs040 [doi] AB - AIM: Randomized controlled trials (RCTs) showed that biventricular (BiV) pacing reduces heart failure (HF) hospitalizations and mortality in patients with New York Heart Association (NYHA) class III-IV HF, left ventricular (LV) dysfunction, and wide QRS. We performed a systematic review and meta-analysis of the RCTs comparing LV-only vs. biventricular (BiV) pacing in candidates for cardiac resynchronization therapy (CRT). METHODS AND RESULTS: The systematic review selected five RCTs (out of 1888 analysed reports) with a cumulative number of 372 patients randomized to BiV pacing and 258 to LV-only pacing. The meta-analysis shows that BiV pacing is not superior to LV-only pacing and that these two pacing modalities do not differ with regard to death or heart transplantation [LV-only vs. BiV pacing odds ratio (OR) 1.24, 95% confidence interval (CI) 0.57-2.70 with the fixed effect model, OR 1.25, 95% CI 0.48-3.24 with the random effect model]. Specific data on hospitalizations were available only in two RCTs with a cumulative number of 127 patients randomized to BiV and 123 to LV-only pacing. The meta-analysis shows that BiV pacing is not superior to LV-only pacing and that these two pacing modalities do not differ with regard to this outcome (LV-only vs. BiV pacing OR 0.86, 95% CI 0.49-1.50 with the fixed effect model, OR 0.86, 95% CI 0.49-1.50 with the random effect model). CONCLUSIONS: Biventricular pacing is not superior to LV-only pacing, and these two pacing modalities appear to achieve similar efficacy in candidates for CRT for moderate to severe HF, in terms of all-cause mortality and hospitalizations during follow-up. FAU - Boriani, Giuseppe AU - Boriani G AD - Institute of Cardiology, University of Bologna, Bologna, Italy. giuseppe.boriani@unibo.it FAU - Gardini, Beatrice AU - Gardini B FAU - Diemberger, Igor AU - Diemberger I FAU - Bacchi Reggiani, Maria Letizia AU - Bacchi Reggiani ML FAU - Biffi, Mauro AU - Biffi M FAU - Martignani, Cristian AU - Martignani C FAU - Ziacchi, Matteo AU - Ziacchi M FAU - Valzania, Cinzia AU - Valzania C FAU - Gasparini, Maurizio AU - Gasparini M FAU - Padeletti, Luigi AU - Padeletti L FAU - Branzi, Angelo AU - Branzi A LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PT - Systematic Review DEP - 20120417 PL - England TA - Eur J Heart Fail JT - European journal of heart failure JID - 100887595 SB - IM MH - *Cardiac Resynchronization Therapy MH - Chi-Square Distribution MH - Confidence Intervals MH - Heart Failure/mortality/*therapy MH - *Hospitalization MH - Humans MH - Odds Ratio MH - Prognosis MH - Randomized Controlled Trials as Topic/*methods MH - *Stroke Volume MH - Treatment Outcome MH - *Ventricular Function, Left EDAT- 2012/04/19 06:00 MHDA- 2012/10/06 06:00 CRDT- 2012/04/19 06:00 PHST- 2012/04/19 06:00 [entrez] PHST- 2012/04/19 06:00 [pubmed] PHST- 2012/10/06 06:00 [medline] AID - hfs040 [pii] AID - 10.1093/eurjhf/hfs040 [doi] PST - ppublish SO - Eur J Heart Fail. 2012 Jun;14(6):652-60. doi: 10.1093/eurjhf/hfs040. Epub 2012 Apr 17.