IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-7-7-15851 Original Research Paper THE ASCENDING AORTIC DISTENSIBILITY INDEX IN 2D TRANSTHORACIC ECHOCARDIOGRAPHY - A CROSS SECTIONAL SINGLE CENTRE STUDY AMONG SOUTH INDIAN POPULATION Jino V Dr. Pratap kumar G Dr. Venkatesan S Dr. July 2018 7 7 01 02 ABSTRACT

 Aortic distensibilty is related to the elastic property of the aorta. Quantification of aortic distensibility using 2D trans–thoracic echocardiography is

a simple non–invasive method to identify persons at risk for cardiovascular events. Our study was done to identify the variations of ascending aortic
distensibility index with age, sex and patients with Atherosclerotic cardiovascular disease (ASCVD) in Indian population. Totally 264 patients
were included in our study. Aortic distensibility index was calculated by Stefanadis formula using 2D echocardiography. Normal population,
Persons with ASCVD risk factors (DM, HT or both) and persons with clinical ASCVD (CAD & CVA) were classified as group 1, group 2 and group
3 respectively. Mean age group of the population was 41.97 (SD±16.01) years. There was a decreasing trend of aortic distensibility index as the age
advanced (Spearman correlation (p)<0.001). Males had significantly lower aortic distensibility index than females (P<0.0001). Aortic
distensibility index was significantly lower in group 2 and group 3 comparing normal population (P=0.0001).