PMID- 17631515 OWN - NLM STAT- MEDLINE DCOM- 20080114 LR - 20070830 IS - 1099-5129 (Print) IS - 1099-5129 (Linking) VI - 9 IP - 9 DP - 2007 Sep TI - Triple-site biventricular pacing in patients undergoing cardiac resynchronization therapy: a feasibility study. PG - 762-7 AB - AIMS: To evaluate implantation safety and efficiency of triple-site (double left-single right) cardiac resynchronization therapy (CRT) and to assess the outcome of this procedure. METHODS AND RESULTS: Twenty-six patients with New York Heart Association (NYHA) class III-IV, left ventricular ejection fraction (EF) < or = 35%, and QRS > or = 120 ms underwent triple-site CRT. Procedural course and complications were analysed. NYHA class, QRS duration, echocardiographic parameters, peak oxygen consumption (VO(2)max), and 6 min walking distance (6MWD) were assessed at baseline and after 3 months. Responders were defined by survival, by no re-hospitalization for heart failure, and by >10% EF, VO(2)max, and 6MWD increase. Implantation was successful in 22 patients (84.6%). Procedure duration (199.1 min) and fluoroscopy time (38.7 min) were higher than in standard procedures. Two clinically silent coronary sinus dissections occurred intra-operatively; one phrenic nerve stimulation and one pocket infection were observed during follow-up. After 3 months of CRT, a significant reduction (P < 0.05) of NYHA class, increment of VO(2)max, 6MWD, EF, and improvement of indices of dyssynchrony were observed. Response rate in the studied group was 95.4%. CONCLUSION: Triple-site resynchronization appears to be a safe and efficient treatment method, with high response rate. Further studies are needed to evaluate the role of this pacing mode in CRT. FAU - Lenarczyk, Radoslaw AU - Lenarczyk R AD - First Department of Cardiology, Silesian Center for Heart Disease, Silesian Medical School, ul Szpitalna 2, 41-800, Zabrze, Poland. elfizab@poczta.onet.pl FAU - Kowalski, Oskar AU - Kowalski O FAU - Kukulski, Tomasz AU - Kukulski T FAU - Szulik, Mariola AU - Szulik M FAU - Pruszkowska-Skrzep, Patrycja AU - Pruszkowska-Skrzep P FAU - Zielinska, Teresa AU - Zielinska T FAU - Kowalczyk, Jacek AU - Kowalczyk J FAU - Pluta, Slawomir AU - Pluta S FAU - Duszanska, Agata AU - Duszanska A FAU - Sredniawa, Beata AU - Sredniawa B FAU - Musialik-Lydka, Agata AU - Musialik-Lydka A FAU - Kalarus, Zbigniew AU - Kalarus Z LA - eng PT - Journal Article DEP - 20070713 PL - England TA - Europace JT - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology JID - 100883649 SB - IM MH - Aged MH - Binding Sites MH - Cardiac Pacing, Artificial/*methods MH - Echocardiography/methods MH - Electrocardiography/methods MH - Female MH - Heart Failure/pathology/*therapy MH - *Heart Ventricles MH - Humans MH - Male MH - Middle Aged MH - Models, Statistical MH - Pacemaker, Artificial MH - Retrospective Studies MH - Treatment Outcome EDAT- 2007/07/17 09:00 MHDA- 2008/01/15 09:00 CRDT- 2007/07/17 09:00 PHST- 2007/07/17 09:00 [pubmed] PHST- 2008/01/15 09:00 [medline] PHST- 2007/07/17 09:00 [entrez] AID - eum140 [pii] AID - 10.1093/europace/eum140 [doi] PST - ppublish SO - Europace. 2007 Sep;9(9):762-7. doi: 10.1093/europace/eum140. Epub 2007 Jul 13.