Morphologic Analysis of the Aortic Root Structures

Roman Komarov, Saniia Odinokova, Andrey Katkov, Ivan Vinokurov

Sechenov First Moscow State Medical University, Moscow, Russia

Date, time and location: 2018.05.25 15:30, Exhibition area, 1st Floor. Zone – D

Abstract

OBJECTIVE: To perform morphologic analysis and to obtain the correlation between different structures of the normal aortic root.

MATERIALS AND METHODS: Morphologic analysis of the normal aortic valve was carried out on 14 cadaveric hearts: 11 (78.5%) men’s and 3 (21.5%) women’s. The age: 69 +15 years; the height: 171 + 7.5 cm; the weight: 76,6 + 16,8 kg; the BSA: 1.88 + 0.2 m². Parameters measured for each aortic valve leaflet, right coronary (RCL), non-coronary (NCL) and left coronary (LCL) were as follows: the inter-commissural distance; the commissural height, the length of free margin of the leaflet, the cusp attachment length at the annulus, the leaflet height.

RESULTS: There is a strong correlation between the inter-commissural distance LCL and the inter-commissural distance RCL (r = 0.83), the commissural height RCL (r = 0.76), the cusp attachment length RCL (r = 0.69). The commissural height LCL correlates with the commissural height RCL (r = 0.84), the cusp attachment length RCL (r = 0.69), and the leaflet height NCL (r = 0.63). The length of free margin LCL correlates with the length of free margin RCL (r = 0.73) and the NCL (r = 0.97). The length of free margin RCL correlates with the length of free margin NCL (r = 0.64). The commissural height RCL correlates with the cusp attachment length (r = 0.72) and the leaflet height LCL (r = 0.63).

CONCLUSION: The obtained results show almost similar sizes RCL and LCL. NCL is compensative. Its dimensions depend on the relative position of the other two. It adapts to the residual defect in the left ventricle output tract and has a final closing function. The data can be applied in the development of objective criteria for aortic valvuloplasty.