小结
定义
本主题涵盖的是成人心搏骤停。心搏骤停是由心脏收缩功能丧失造成的一种循环衰竭突发状态。由 4 种特定心律失常导致：心室纤颤、无脉性室性心动过速（ventricular tachycardia, VT）、无脉性电活动和心脏停搏。在有潜在 QT 间期延长的患者中，尖端扭转是多形性 VT 的一个亚组，有时与低镁血症有关。
[Figure caption and citation for the preceding image starts]: 单形性室性心动过速由A. Askari医生和A. Krishnaswamy医生提供；经允许使用 [Citation ends].
[Figure caption and citation for the preceding image starts]: 尖端扭转型室性心动过速由A. Askari医生提供；经允许使用 [Citation ends].
病史和体格检查
诊断性检查
治疗流程
撰稿人
作者
Resident Physician
Department of Family Medicine
University of Calgary
Calgary
Canada
利益声明
JW declares that he has no competing interests.
Professor and Department Head of Emergency Medicine
Cumming School of Medicine
University of Calgary
Alberta Health Services
Calgary
Canada
利益声明
EL declares that he has no competing interests.
Dr John Wink and Professor Eddy Lang would like to gratefully acknowledge Dr Amar Krishnaswamy and Dr Arman T. Askari, previous contributors to this topic.
利益声明
AK and ATA declare that they have no competing interests.
同行评议者
Professor of Medicine
Division of Cardiology
University of California
San Francisco
CA
利益声明
VM declares that he has no competing interests.
Instructor
NYU Department of Medicine (Cardiology)
Leon H Charney Heart Rhythm Center and New York University
New York
NY
利益声明
AA declares that he has no competing interests.
Honorary Clinical Senior Lecturer/Consultant
Department of Cardiology
Imperial College London
London
UK
利益声明
MFP declares that he has no competing interests.
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