机构：[1]Mayo Clin, Div Cardiovasc Dis, Rochester, MN 55905 USA;[2]Mayo Clin, Div Biomed Stat & Informat, Rochester, MN 55905 USA;[3]Mackay Mem Hosp, Taipei, Taiwan;[4]Beijing Anzhen Hosp, Capital Med Univ, Dept Cardiol, Beijing, Peoples R China;临床科室心脏内科中心首都医科大学附属安贞医院[5]Mayo Clin, Div Cardiovasc Dis, 200 First St SW, Rochester, MN 55905 USA
Background and purpose: First-degree atrioventricular (AV) block in relation to the outcome of cardiac resynchronization therapy (CRT) has not been well examined. Methods: Patients who received a CRT defibrillator or pacemaker between January 2002 and September 2010 at Mayo Clinic were classified into 2 groups: normal PR interval and prolonged PR interval. Standard sensed (100 milliseconds) and paced (130 milliseconds) AV delay was programmed after CRT. Clinical presentations and echocardiography were assessed before CRT and at a median of 6 months after CRT. Results: The normal PR interval group (n = 199) had greater improvements in heart failure functional class (mean [SD], 0.7 [0.8] vs 0.5 [0.9]; P = .03) and left ventricular ejection fraction (9.4% [12.4%] vs 5.9% [9.5%]; P = .007) than the prolonged PR group (n = 204). Conclusion: Compared with prolonged PR interval, the presence of normal PR interval was associated with a greater improvement in heart failure. Published by Elsevier Inc.
第一作者机构：[1]Mayo Clin, Div Cardiovasc Dis, Rochester, MN 55905 USA;[3]Mackay Mem Hosp, Taipei, Taiwan;
通讯作者：
通讯机构：[1]Mayo Clin, Div Cardiovasc Dis, Rochester, MN 55905 USA;[5]Mayo Clin, Div Cardiovasc Dis, 200 First St SW, Rochester, MN 55905 USA
推荐引用方式(GB/T 7714)：
Lee Ying-Hsiang,Wu Jia-Hui,Asirvatham Samuel J.,et al.Effects of atrioventricular conduction delay on the outcome of cardiac resynchronization therapy[J].JOURNAL OF ELECTROCARDIOLOGY.2014,47(6):930-935.doi:10.1016/j.jelectrocard.2014.07.024.
APA：
Lee, Ying-Hsiang,Wu, Jia-Hui,Asirvatham, Samuel J.,Munoz, Freddy Del Carpio,Webster, Tracy...&Cha, Yong-Mei.(2014).Effects of atrioventricular conduction delay on the outcome of cardiac resynchronization therapy.JOURNAL OF ELECTROCARDIOLOGY,47,(6)
MLA：
Lee, Ying-Hsiang,et al."Effects of atrioventricular conduction delay on the outcome of cardiac resynchronization therapy".JOURNAL OF ELECTROCARDIOLOGY 47..6(2014):930-935
