Evaluation of Regional Left Ventricular Cardiocyte Viability and Diastolic Function by Strain Curves in Patients with Myocardial Infarction
- VernacularTitle:应变对心肌梗死患者左心室局域心肌细胞活力和舒张功能的评价
- Author:
Shihong WANG
;
Junyu CUI
;
Xian WANG
;
Dongmei ZHANG
;
Wei XU
- Publication Type:Journal Article
- Keywords:
strain, myocardial infarction, cardiocyte viability, diastolic abnormality, regional ventricle
- From:
Chinese Journal of Rehabilitation Theory and Practice
2008;14(6):553-554
- CountryChina
- Language:Chinese
-
Abstract:
Objective To detect the strain features of regional wall abnormalities in patients with coronary artery disease during each diastolic period, and its possibility to evaluate regional left ventricular cardiocyte viability and diastolic function.Methods 54 patients with anterior myocardial infarction (MI group) and 78 normal subjects (NOR group) underwent Doppler tissue imaging, which were performed in 2-chamber-view by strain curves synchronously.Results In the NOR group, strain value of 66 cases (84.62%) showed an gradually increasing negative value from the apex to base to middle of left ventricle, while in the MI group, there were 9 cases (16.67%) with such a trend. IR phase: in the NOR group, 564 segments (90.38%) were upward wave bands, but in the MI group, there were 123 segments (28.47%) having such waves ( P<0.05). RF phase: in the NOR group, 576 segments (92.31%) were upward and steep wave bands, but in the MI group, the number of upward waves were obviously less (102 segments,23.61%) ( P<0.01). SF period: compared with the NOR group, which was horizontal, the MI group had upward wave bands ( P<0.05).Conclusion Regional myocardial ischemia and infarction can cause significant regional diastolic wall abnormalities of strain value in active diastolic phase. Regional diastolic wall motion abnormalities can be evaluated quantitatively and synchronously with high sensitivity by strain curve which has the potential value in cardiocyte viability and diastolic function.
