PMID- 18227354 OWN - NLM STAT- MEDLINE DCOM- 20080611 LR - 20121115 IS - 1532-2092 (Electronic) IS - 1099-5129 (Linking) VI - 10 IP - 3 DP - 2008 Mar TI - Chronic cardiac resynchronization therapy reverses cardiac remodelling and improves invasive haemodynamics of patients with severe heart failure on optimal medical treatment. PG - 379-83 LID - 10.1093/europace/eum297 [doi] AB - AIMS: The aim of this study was to assess chronic invasive haemodynamic effects of cardiac resynchronization therapy (CRT) in patients with severe heart failure. METHODS AND RESULTS: Seventeen patients with New York Heart Association (NYHA) class III or IV and QRS duration >120 ms on optimal treatments underwent CRT. Haemodynamic data were obtained by cardiac catheterization before and 1 month after CRT. Clinical parameters and exercise tolerance were also evaluated. Chronic CRT improved haemodynamics significantly; mean pulmonary capillary wedge pressure decreased from 15.9 +/- 6.1 to 10.2 +/- 5.3 mmHg (P < 0.05), systolic pulmonary artery pressure decreased from 36.5 +/- 13.2 to 26.7 +/- 11.9 mmHg (P < 0.05), left ventricular end-diastolic pressure decreased from 15.6 +/- 7.2 to 10.5 +/- 7.3 mmHg (P < 0.05), end-diastolic volume decreased from 358.8 +/- 84.6 to 322.9 +/- 99.0 mL (P < 0.05), end-systolic volume decreased from 264.1 +/- 67.6 to 219.2 +/- 74.3 mL (P < 0.05), left ventricular ejection fraction increased from 25.4 +/- 6.2 to 33.1 +/- 4.9% (P < 0.05), and cardiac index increased from 1.9 +/- 0.4 to 2.2 +/- 0.5 L/min/m(2) (P < 0.05). Chronic CRT significantly improved functional capacity such as NYHA classification, 6 min walk distance, and peak oxygen uptake. CONCLUSION: Chronic CRT improved not only symptoms and exercise tolerance but also invasive haemodynamics associated with reversed cardiac remodelling. FAU - Inage, Tomohito AU - Inage T AD - Department of Internal Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan. FAU - Yoshida, Teruhisa AU - Yoshida T FAU - Hiraki, Tatsuro AU - Hiraki T FAU - Ohe, Masatsugu AU - Ohe M FAU - Takeuchi, Tomohiro AU - Takeuchi T FAU - Nagamoto, Yasutsugu AU - Nagamoto Y FAU - Fukuda, Yujiro AU - Fukuda Y FAU - Gondo, Takeki AU - Gondo T FAU - Imaizumi, Tsutomu AU - Imaizumi T LA - eng PT - Clinical Trial PT - Journal Article DEP - 20080128 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 - Aged, 80 and over MH - Blood Pressure/*physiology MH - Cardiac Catheterization/*methods MH - Cardiac Pacing, Artificial/*methods MH - Electrocardiography MH - Exercise Tolerance/physiology MH - Female MH - Heart Failure/*physiopathology/*therapy MH - Humans MH - Male MH - Middle Aged MH - Pacemaker, Artificial MH - Stroke Volume/*physiology MH - Treatment Outcome MH - Ventricular Remodeling/*physiology EDAT- 2008/01/30 09:00 MHDA- 2008/06/12 09:00 CRDT- 2008/01/30 09:00 PHST- 2008/01/30 09:00 [pubmed] PHST- 2008/06/12 09:00 [medline] PHST- 2008/01/30 09:00 [entrez] AID - eum297 [pii] AID - 10.1093/europace/eum297 [doi] PST - ppublish SO - Europace. 2008 Mar;10(3):379-83. doi: 10.1093/europace/eum297. Epub 2008 Jan 28.