Diagnostic value and clinical significance of nocturnal ST-T changes in dynamic electrocardiogram
10.3969/j.issn.1008-0074.2015.01.23
- VernacularTitle:动态心电图夜间 ST-T 改变的临床意义
- Author:
Xiaorong YU
;
Biao XU
;
Bugao SUN
;
Rong GU
;
Aijuan FANG
- Publication Type:Journal Article
- Keywords:
Coronary disease;
Electrocardiography,ambulatory;
Coronary angiography
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2015;24(1):76-78
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore diagnostic value of nocturnal ST-T changes in 24h dynamic electrocardiogram (DCG)for coronary heart disease (CHD)and its clinical significance.Methods:A total of 103 cases,who showed ST-T changes in 24h DCG,received selective coronary angiography (CAG).Among them,the 56 patients with in-termittent nighttime significant ST-T changes were regarded as research group,while the other 47 patients with per-sistent ST-T changes were treated as control group.CAG results were compared and analyzed between two groups. Results:Compared with control group,there were significant rise in CAG positive rate (31.9% vs.67.9%),inci-dence rates of dyspnea and chest pain (27.7% vs.66.1%),hypertension (48.9% vs.71.4%),hyperlipidemia (31.9% vs.42.9%)and diabetes mellitus (17.0% vs.46.4%),percentages of lesions in left anterior descending artery (LAD,21.3% vs.57.1%),left circumflex coronary artery (LCX,14.8% vs.37.5%)and right coronary artery (RCA,12.8% vs.35.7%)in research group,P <0.05 or <0.01. Conclusion:Nocturnal ST-T signifieantly changes in 24h DCG,it possesses more diagnostic value for CHD,which can be regarded as a more sensitive index diagnosing myocardial ischemia.
