ASI and AHI Scores in Acute Type a Aortic Dissection: A Reliable Predictor of Complications and Useful Criteria for Early Intervention

Thoracic aortic aneurysm is defined as an aortic size 50 % greater than the expected aortic diameter. In practice, 5 cm axial dimension is most often used since intervention is otherwise rarely considered in the asymptomatic patient. If this relationship is reversed, aortic monitoring for aneurysm development should be considered. CT angiography of heart and great vessels scan characterize thoracic ascending aortic aneurysms by their size, location and shape. Hence, Aim of the study was to properly delineate increasing diameter of ascending aorta, hence aortic surface index (ASI) and aortic height index (AHI) was calculated as reliable predictor of complication, and as useful criteria for intervention.