Quantitative assessment of left ventricular myocardial function in patients with left anterior descending branch stenosis by longitudinal stratified strain technique

Objective To evaluate the global and local systolic function of left ventricular myocardium in patients with left anterior descending coronary artery (LAD) stenosis and to explore its clinical value in early diagnosis of coronary heart disease (CHD). Methods From November 2016 to June 2017, 123 patients with diagnosed with suspected CHD and confirmed with simple LAD stenosis by coronary angiography (case group) and 32 patients without obvious stenosis (control group) at Shanxi Cardiovascular Hospital were included. According to the results of LAD coronary angiography, the 123 patients were divided into four groups: A (stenosis degree≤30%), B (30%0.05). Compared with the control group, group A, and group B, GLSendo, GLSepi, TLSendo, TLSmid, and TLSepi in group C and GLSendo, GLSmid, GLSepi, TLSendo, TLSmid, and TLSepi in group D decreased (P<0.05), and the longitudinal strain parameters between groups C and D were significantly different (all P<0.05). The area under the ROC curve was 0.81 when TLSendo was used to diagnose LAD stenosis (50%

Keywords:

• myocardial function
• Cardiology
• Stenosis
• Anterior Descending Coronary Artery
• Receiver operating characteristic
• Strain (chemistry)
• Internal medicine
• in patient
• Ultrasound
• quantitative assessment
• Medicine

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