Study on the correlation between QRS complex and coronary artery lesions in resting electrocardiogram
ZHAO Na1 YU Qian2 LI Jing1 YUAN Chen3
1.Department of Electrocardiography, Cangzhou Central Hospital, Hebei Province, Cangzhou 061000, China;
2.Second Department of Ultrasound, Cangzhou Central Hospital, Hebei Province, Cangzhou 061000, China;
3.Fifth Departments of Cardiology, Cangzhou Central Hospital, Hebei Province, Cangzhou 061000, China
Abstract:Objective To investigate the correlation between QRS (fQRS) wave group and coronary angiography in resting electrocardiogram fragmentation. Methods A total of 584 patients with coronary artery disease who underwent coronary angiography and electrocardiography in Cangzhou Central Hospital (“our hospital” for short) from October 2016 to September 2018 were divided into fQRS group (n = 350) and non-fQRS group (n = 234) according to the results of electrocardiogram examination. Cardiac function indicators [the left ventricular ejection fraction (LVEF), left ventricular end-diastolic volume index (LVEDVI), 6-minute walking test (6MWT)] and the results of coronary angiography (lesion range, lesion vessel, degree of stenosis) were compared between the two groups. The correlations between QRS wave group and cardiac function, lesion range and stenosis degree were analyzed. Results The LVEF and 6MWT in the fQRS group were smaller than those in the non-fQRS group, and the LVEDVI was larger than that in the non-fQRS group (P < 0.05). The lesion range in the fQRS group was larger than that in the non-fQRS group (P < 0.05). There was no significant difference in the lesions vessel distribution between the two groups (P > 0.05). The degree of stenosis in the fQRS group was lighter than that in the non-fQRS group (P < 0.05). Spearman analysis showed that fQRS wave detection rate was positively correlated with coronary artery disease count, and negatively correlated with coronary artery stenosis degree and LVEF (P < 0.05). Conclusion The resting electrocardiogram fQRS wave is closely related to coronary artery disease. The fQRS wave can be used as a reference index for predicting cardiac function, coronary artery lesion range and stenosis, and can provide important data support for clinical diagnosis and treatment.
赵娜1 于倩2 李婧1 袁琛3. 静息心电图碎裂QRS波群与冠状动脉病变的相关性研究[J]. 中国医药导报, 2019, 16(17): 42-45.
ZHAO Na1 YU Qian2 LI Jing1 YUAN Chen3. Study on the correlation between QRS complex and coronary artery lesions in resting electrocardiogram. 中国医药导报, 2019, 16(17): 42-45.