Correlation Analysis of Myocardial Bridge and Atherosclerotic Stenosis at Proximal to a Segment With Myocardial Bridge in Patients Elderly Than 60 Years of Age
10.3969/j.issn.1000-3614.2016.08.007
- VernacularTitle:60岁以上患者心肌桥与其近端桥前血管动脉粥样硬化狭窄的相关性分析
- Author:
Kai LIU
;
Ying CHEN
;
Haowen WANG
;
Xiaoli ZHOU
;
Fan JIANG
;
Shan TONG
- Publication Type:Journal Article
- Keywords:
Atherosclerosis;
Myocardial bridge;
Elderly
- From:
Chinese Circulation Journal
2016;31(8):755-758
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the correlation of left descending anterior (LDA) myocardial bridge (MB) and atherosclerosis at proximal to a segment with MB in patients elderly than 60 years and to identify if LDAMB could become the independent risk factor of atherosclerotic stenosis at proximal to a segment with MB. Methods: A total of 986 patients with multi-slice spiral CT diagnosed coronary artery disease (CAD) were studied and 389 patients with 486 MB in left heart were found. General information as the age, gender, diabetes, hypertension, dyslipidemia and smoking conditions were collected, relationship between LDAMB and atherosclerotic stenosis at proximal to a segment with MB was studied by Logistic regression analysis. Results: There were 48/389 (12.3%) cases with MB at proximal segment of LDA, 254 (65.3%) cases with MB at middle segment of LDA, 51 (13.1%) cases with MB at distal segment of LDA, 19 (4.9%) cases with MB at the ifrst diagonal branch and 17 (4.4%) cases with MB at obtuse marginal branch respectively. Logistic regression analysis presented that age (OR=1.07, 95% CI 0.02-0.09,P<0.01), diabetes (OR=4.48, 95% CI 0.75-2.24,P<0.01) and MB at middle segment of LDA (OR=4.98, 95% CI 0.81-2.41, P<0.01) were related to atherosclerotic stenosis at proximal to a segment with MB; age (OR=1.08, 95% CI 0.04-0.12,P<0.01) and diabetes (OR=3.49, 95% CI 0.30-2.19,P=0.01) were related to the atherosclerosis at LAD middle segment; the MB at LAD middle segment was not related to atherosclerosis of middle and distal LAD segments,P>0.05. Conclusion: MB at middle segment of LDA was with the higher occurrence rate of atherosclerotic stenosis at proximal to a segment with MB in elderly patients, which could be used as an independence risk factor for clinical diagnosis.
