PMID- 12161226 OWN - NLM STAT- MEDLINE DCOM- 20020923 LR - 20190623 IS - 0002-9149 (Print) IS - 0002-9149 (Linking) VI - 90 IP - 4 DP - 2002 Aug 15 TI - Effectiveness of resynchronization therapy in patients with end-stage heart failure. PG - 379-83 AB - Biventricular pacing has been introduced to treat patients with end-stage heart failure, and short-term results of this technique are promising. Because data on longer follow-up are limited to 3-month follow-up, the sustained effect of biventricular pacing is unclear and long-term survival is unknown. Forty patients with end-stage heart failure in New York Heart Association (NYHA) functional class III or IV with left ventricular (LV) ejection fraction (EF) <35%, QRS duration >120 ms, and left bundle branch block morphology received a biventricular pacemaker. At baseline, and at 3 and 6 months after implantation, the following parameters were evaluated: NYHA class, Minnesota quality-of-life score, QRS duration on surface electrocardiogram, 6-minute walking distance, and LVEF. Long-term follow-up was obtained for up to 2 years. All clinical parameters improved significantly at 3 months and remained unchanged at 6-month follow-up. LVEF increased from 24 +/- 9% to 34 +/- 11%. Before implantation, patients were hospitalized (for congestive heart failure) an average of 3.9 +/- 5.3 days/year compared with 0.5 +/- 1.5 days/year after implantation. Long-term follow-up showed a survival of 87.5% at 2 years. Thus, biventricular pacing resulted in improvement of symptoms and quality of life, accompanied by improvement in 6-minute walking distance and LVEF. These effects were observed at 3 months after implantation and were maintained at 6-month follow-up. Moreover, 2-year survival was excellent. FAU - Molhoek, Sander G AU - Molhoek SG AD - Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands. FAU - Bax, Jeroen J AU - Bax JJ FAU - van Erven, Lieselot AU - van Erven L FAU - Bootsma, Marianne AU - Bootsma M FAU - Boersma, Eric AU - Boersma E FAU - Steendijk, Paul AU - Steendijk P FAU - van der Wall, Ernst E AU - van der Wall EE FAU - Schalij, Martin J AU - Schalij MJ LA - eng PT - Journal Article PL - United States TA - Am J Cardiol JT - The American journal of cardiology JID - 0207277 SB - IM MH - Cardiac Pacing, Artificial/*methods MH - Exercise Tolerance MH - Female MH - Follow-Up Studies MH - Heart Failure/mortality/physiopathology/*therapy MH - Humans MH - Male MH - Middle Aged MH - Quality of Life MH - Stroke Volume MH - Surveys and Questionnaires MH - Treatment Outcome MH - Ventricular Function, Left EDAT- 2002/08/06 10:00 MHDA- 2002/09/24 06:00 CRDT- 2002/08/06 10:00 PHST- 2002/08/06 10:00 [pubmed] PHST- 2002/09/24 06:00 [medline] PHST- 2002/08/06 10:00 [entrez] AID - S0002914902024931 [pii] AID - 10.1016/s0002-9149(02)02493-1 [doi] PST - ppublish SO - Am J Cardiol. 2002 Aug 15;90(4):379-83. doi: 10.1016/s0002-9149(02)02493-1.