A new ECG sign for sudden death: Transient prolonged QT interval following premature contraction.
10.11817/j.issn.1672-7347.2021.190736
- Author:
Xiexiong ZHAO
1
;
Xiaogang LI
2
;
Chunhua LIU
2
;
Yuyan WU
2
;
Jiaying LI
2
;
Nana YOU
2
;
Ruixuan LI
2
;
Huiling CHEN
2
;
Huiting TANG
2
;
Shunsong CHEN
2
;
Wenjuan WANG
3
;
Weihong JIANG
4
Author Information
1. Department of Cardiology, Third Xiangya Hospital, Central South University, Changsha 410013, China. 1009314192@qq.com.
2. Department of Cardiology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
3. Department of Cardiology, Third Xiangya Hospital, Central South University, Changsha 410013, China. 2354789062@qq.com.
4. Department of Cardiology, Third Xiangya Hospital, Central South University, Changsha 410013, China. jiangweihongdoc@163.com.
- Publication Type:Journal Article
- Keywords:
premature contraction;
prolonged QT interval;
sudden death;
warning electrocardiogram
- MeSH:
Arrhythmias, Cardiac/diagnosis*;
Death, Sudden;
Death, Sudden, Cardiac;
Electrocardiography;
Humans;
Long QT Syndrome/diagnosis*
- From:
Journal of Central South University(Medical Sciences)
2021;46(4):444-448
- CountryChina
- Language:English
-
Abstract:
Early recognition and treatment for early warning electrocardiogram (ECG) of sudden death are very important to prevent and treat malignant arrhythmia and sudden death. Previous studies have found that R-on-T and T wave alternation, and QT interval prolongation are closely related to malignant arrhythmia or sudden death, which are included in the critical value of ECG.By analyzing the ECG characteristics of 4 patients with sudden death, we found that although the causes of the patients were different, there were transient prolongation of QT interval after premature contraction in 12 lead ECG, followed by malignant arrhythmia or sudden death. Thus, we thought that the transient prolongation of QT interval after premature contraction had a high value for warning malignant arrhythmia or sudden death. This phenomenon should be paid enough attention to reduce the risk of sudden death.
