Correlation between myocardial infarction and carotid atherosclerosis in older adult patients
10.3760/cma.j.cn341190-20211108-01252
- VernacularTitle:老年人心肌梗死与颈动脉粥样硬化的相关性分析
- Author:
Jing ZHANG
1
;
Haifei XU
;
Gang LI
Author Information
1. 丽水市人民医院超声科，丽水323000
- Keywords:
Myocardial infarction;
Atherosclerosis;
Carotid artery;
Ultrasonography, doppler, color;
Aged
- From:
Chinese Journal of Primary Medicine and Pharmacy
2022;29(11):1606-1610
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the correlation between myocardial infarction and carotid atherosclerosis in older adult patients.Methods:A total of 98 older adult patients with myocardial infarction who received treatment in Lishui People's Hospital from June 2020 to June 2021 were included in this study. They were divided into three subgroups: mild ( n = 25), moderate ( n = 43) and severe ( n = 30) groups according to the severity of myocardial infarction. An additional 50 healthy subjects who concurrently received physical examination in the same hospital were included as controls. All participants underwent color Doppler ultrasound to evaluate the degree of carotid stenosis and its correlation with the severity of myocardial infarction. Results:In the myocardial infarction group, 327 carotid plaques were detected in 88 out of 98 patients, with the detection rate of 89.8%. In the control group, 85 carotid plaques were detected in 17 out of 50 healthy subjects, with the detection rate of 34.0%. In the myocardial infarction group, most plaques were mixed and soft, accounting for 34.8% (114/327) and 51.4% (168/327), respectively. In the control group, most plaques were calcified, accounting for 62.3% (53/85). There was significant difference in plaque property between the two groups ( χ2 = 102.23, P < 0.05). There was significant difference in the degree of carotid lumen stenosis between control and myocardial infarction groups ( χ2 = 60.07, P < 0.05). The degree of carotid lumen stenosis increased with the aggravation of myocardial infarction ( χ2 = 15.17, P < 0.05). Carotid intima-media thickness in the severe group was (1.49 ± 0.26) mm, which was significantly greater than (1.28 ± 0.24) mm in the moderate group, (1.15 ± 0.21) mm in the mild group and (0.82 ± 0.16) mm in the control group ( t = 5.21, 7.42, 14.29, all P < 0.05). Plaque score in the severe group was (2.56 ± 0.51) points, which was significantly higher than (2.33 ± 0.45) points in the moderate group, (1.58 ± 0.39) points in the mild group, and (1.12 ± 0.36) points in the control group ( t = 3.00, 11.23, 14.77, all P < 0.05). Correlation analysis showed that the severity of myocardial infarction was positively correlated with the degree of carotid artery lumen stenosis, intima-media thickness and plaque score ( r = 0.41, 0.33, 0.28, all P < 0.01). Conclusion:The severity of myocardial infarction in the older adults is correlated with carotid atherosclerosis, and carotid lumen stenosis can be used as a predictor of myocardial infarction.
