Abstract：Objective: To analyse the clinical characteristics of patients with coronary artery tortuosity and the relationship between tortuous vascular distribution and impaired left ventricular diastolic function. Methods: Forty-seven cases of coronary artery angiography patients with undefined stenosis and coronary artery tortuosity were detected by 640 multi-detector spiral CT and echocardiography. Results: Forty-seven cases of coronary artery tortuosity patients, including 22 cases of males and 25 cases of females, accompanied with hypertension of 35 cases, 141 cases of tortuous vascular segments were found, including 25 mild, 19 moderate and 3 severe, and often occurred in distal segment of left interior descending, distal segment of circumflex artery, left ventricular posterior branch. The left ventricular diastolic function were impaired in 38 patients, including 38 cases of E/A<1, 7 cases of E/A=1, and 2 cases of E/A>1. Conclusion: There is a certain relationship between coronary artery circuity and hypertension. Circuitous blood vessels are mainly occurred in feeding arteries of the left ventricular myocardial, and many patients with coronary artery circuity combined with decreased left ventricular diastolic function. The two reasons result in a poor capacity of coronary blood flow reserve, which is an important reason for the patients with similar symptoms of coronary heart disease.
2015, Vol. 26 
