首页 | 本学科首页   官方微博 | 高级检索  
检索        


Advanced early and late atrioventricular block in acute inferior wall myocardial infarction
Authors:Samuel Sclarovsky  Boris Strasberg  Abraham Hirshberg  Alex Arditi  Ruben F Lewin  Jacob Agmon
Institution:1. Israel and Ione Massada Center for Heart Diseases, Intensive Coronary Care Unit Petah-Tiqva, Israel.;2. Institute for Cardiac Rehabilitation, Beilinson Medical Center Petah-Tiqva, Israel.;3. the Sackler School of Medicine, Tel-Aviv University Petah-Tiqva, Israel.
Abstract:Seventy-six patients with acute inferior acute myocardial infarction (AMI) and advanced atrioventricular (AV) block are described. According to pre-established ECG criteria and time of appearance of the advanced AV block, patients were divided into two groups. The early block group consisted of 31 patients who developed advanced AV block during the hyperacute ECG stage of AMI. Advanced AV block in these patients was characterized by early appearance, short duration, third-degree type block, poor response to atropine, and increased need for pacemaker therapy. The late block group consisted of 45 patients who developed advanced AV block during subsequent ECG stages of AMI. Advanced AV block in these patients was characterized by late appearance, longer duration, second-degree type block, positive response to atropine, and diminished need for pacemaker therapy. Morbidity and mortality also differed between both groups. Patients with early block had more syncope (32% vs 2%, p < 0.0001), more left heart failure (36 vs 7%, p < 0.005), and more cardiogenic shock (39% vs 2%, p < 0.001) than patients with late block. The mortality rate in the early block group was high (23%) and similar to that reported in the literature, whereas the mortality rate in the late block group was low (7%, p < 0.05) and similar to the mortality rate reported for acute inferior AMI without advanced AV block. These data identify a subgroup of patients with acute inferior AMI and advanced AV block, which accounts for the high mortality rate reported in this group of patients.
Keywords:Reprint requests: Jacob Agmon  M  D    The massada Center for Heart Diseases  Beilinson Medical Center  Petah-Tiqva 49 100  Israel  
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号