Relationship between plane QRS-T angle and postoperative arrhythmia in patients with acute myocardial infarction
YANG Jianye1 YU Xiongli2 FAN Jianping1 DENG Peng1
1.Department of Cardiac Macrovascular Surgery, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Hubei Province, Wuhan 430030, China;
2.Department of Biliary and Pancreatic Surgery, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Hubei Province, Wuhan 430030, China
Abstract：Objective To study the relationship between plane QRS-T angle and postoperative arrhythmia in patients with acute myocardial infarction (AMI). Methods A total of 160 patients diagnosed with AMI treated with percutaneous coronary intervention (PCI) from March 2014 to December 2017 in Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology were selected. All the patients were divided into group A (42 cases) and group B (118 cases) according to the postoperative plane QRS-T angle. Postoperative plane QRS-T angle in group A was ＞90°, which in group B was ≤90°. The general data, postoperative data and postoperative medication status were compared between the two groups, and Logistic regression analysis was performed. Results The proportion of aged and hypertension in group A were significantly higher than group B, the differences were statistically significant (P ＜ 0.05). The incidence of postoperative arrhythmia, the proportion of left ventricular ejection fraction ＜45% and QTc interphase in group A were significantly higher than group B, the differences were statistically significant (P ＜ 0.05). The β blockers using proportion in group A was significantly lower than that in group B, and the difference was statistically significant (P ＜ 0.05). Single factor Logistic regression analysis promoted: age, hypertension and left ventricular ejection fraction＜45%, QTc interphase, application of β blockers, plane QRS-t angle＞90° were the factors affected postoperative arrhythmia in patients with AMI (P ＜ 0.05). The multi-factor Logistic regression analysis promoted: the use of β blockers was a protective factor for postoperative arrhythmia in AMI patients, and the plane QRS-T angle＞90° was the independent risk factor for postoperative arrhythmia in AMI patients (P ＜ 0.05). Conclusion Plane QRS-T angle＞90° is the independent risk factor for postoperative arrhythmia in AMI patients, and doctors should focus on QRS-T angle＞90° and patients without the application of β blockers in clinical work, to prevent the occurrence of arrhythmia.
杨建业1 余雄丽2 凡建平1 邓鹏1. 平面QRS-T夹角与急性心肌梗死患者术后并发心律失常的关系[J]. 中国医药导报, 2018, 15(26): 30-33.
YANG Jianye1 YU Xiongli2 FAN Jianping1 DENG Peng1. Relationship between plane QRS-T angle and postoperative arrhythmia in patients with acute myocardial infarction. 中国医药导报, 2018, 15(26): 30-33.
2018, Vol. 15 
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