PMID- 27112612 OWN - NLM STAT- MEDLINE DCOM- 20170126 LR - 20181202 IS - 0253-3758 (Print) IS - 0253-3758 (Linking) VI - 44 IP - 4 DP - 2016 Apr 24 TI - [Efficacy of biventricular pacing on preventing heart failure in patients with high degree atrioventricular block (BIVPACE-AVB Trial)]. PG - 331-7 LID - 10.3760/cma.j.issn.0253-3758.2016.04.011 [doi] AB - OBJECTIVE: To investigate the long-term effect of biventricular (BIV) and right ventricular apical (RVA) pacing on cardiac function in patients with high-degree atrioventricular block (AVB) and left ventricular ejection fraction(LVEF)over 35%. METHODS: A total of 118 consecutive patients with high-degree AVB in six hospitals from East China between May 2009 and December 2012 were enrolled in this randomized, double-blind and parallel controlled study. Patients were randomly assigned to BIV and RVA pacing with or without LV lead on after one-week cardiac resynchronization therapy (CRT). Cardiac function including New York Heart Association(NYHA), 6 minute walking distance (6MWD), Minnesota living with heart failure (MLHF) score, LVEF, left ventricular end-diastolic volumes/diameters (LVEDV/LVEDD) and other echocardiography parameters, as well as N-terminal pro-B-type natriuretic peptide (NT-proBNP)were assessed at 6 months and 12 months. RESULTS: A total of 114 patients were successfully implanted with CRT. Cardiac function was significantly improved after one-week BIV pacing (n=57) compared with pre-CRT: rate of patients with NYHA Ⅲ (25.44%(29/114) vs. 9.65%(11/114)), MLHF score (17.1+/-13.6 vs. 26.9+/-21.6), 6MWD ((315.4+/-121.8)m vs. (291.8+/-102.9)m) and NT-proBNP (157.0(70.0, 639.0) ng/L vs. 444.7(144.0, 1 546.0)ng/L, all P<0.05). In BIV group, 6MWD extended from (314.8+/-142.7)m to (332.7+/-117.5)m at 6 months (P<0.05), LVEF increased from (60.7+/-7.9)% at 1 week to (56.6+/-10.7)% at 6 months(P<0.05), both LVEDV and LVEDD decreased at 12 months compared with at 1 week ((116.2+/-39.5)ml vs. (131.4+/-49.6)ml and (50.2+/-5.6)mm vs. (52.5+/-6.8)mm, P<0.05). In RVA group (n=57), 6MWD increased at 6 months compared that at 1week ((342.4+/-109.9)m vs. (310.2+/-105.1)m, P<0.05), NT-proBNP was higher at 12 months than that at 1 week (349.5(191.8, 884.3)ng/L vs. 127.0(70.3, 336.7)ng/L, P<0.05). Compared with RVA group, BIV group had a bigger shrink in LVEDV decrease at 12 months was more significant in BIV group ((-16.68+/-24.30)ml vs. (9.09+/-29.30)ml, P<0.05). CONCLUSIONS: Cardiac pacing could acutely improve the cardiac function in patients with high-degree AVB and LVEF over 35%. Improvements on cardiac function and remodeling are more significant after 12-month BIV pacing than that of RVA pacing. Clinical Trail Registry: Chinese Clinical Trial Registry, ChiCTR-TRC-10000832. FAU - Zhang, X Y AU - Zhang XY AD - Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China. FAU - Shan, Q J AU - Shan QJ FAU - Su, Y G AU - Su YG FAU - Yan, J AU - Yan J FAU - Bao, Z H AU - Bao ZH FAU - Gu, X AU - Gu X FAU - Qiu, J P AU - Qiu JP FAU - Qin, S M AU - Qin SM FAU - Xu, J AU - Xu J FAU - Su, H AU - Su H FAU - Zhu, H AU - Zhu H FAU - Guo, J F AU - Guo JF FAU - Lu, J P AU - Lu JP FAU - Zou, J G AU - Zou JG FAU - Chen, M L AU - Chen ML FAU - Xu, D AU - Xu D FAU - Cao, K J AU - Cao KJ LA - chi PT - Journal Article PT - Randomized Controlled Trial PL - China TA - Zhonghua Xin Xue Guan Bing Za Zhi JT - Zhonghua xin xue guan bing za zhi JID - 7910682 RN - 0 (Peptide Fragments) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Atrioventricular Block/*physiopathology MH - Cardiac Resynchronization Therapy/*methods MH - China MH - Double-Blind Method MH - Echocardiography MH - Heart Failure/*prevention & control MH - Heart Ventricles MH - Humans MH - Natriuretic Peptide, Brain/metabolism MH - Peptide Fragments/metabolism MH - Stroke Volume MH - Treatment Outcome MH - Ventricular Function, Left EDAT- 2016/04/27 06:00 MHDA- 2017/01/27 06:00 CRDT- 2016/04/27 06:00 PHST- 2016/04/27 06:00 [entrez] PHST- 2016/04/27 06:00 [pubmed] PHST- 2017/01/27 06:00 [medline] AID - 10.3760/cma.j.issn.0253-3758.2016.04.011 [doi] PST - ppublish SO - Zhonghua Xin Xue Guan Bing Za Zhi. 2016 Apr 24;44(4):331-7. doi: 10.3760/cma.j.issn.0253-3758.2016.04.011.