False lumen/true lumen wall pressure ratio is increased in acute non-A non-B aortic dissection.

ABSTRACT:

Objectives

We aimed to determine whether non-A non-B aortic dissection (AD) differs in morphologic and haemodynamic properties from type B AD.

Methods

We simulated and compared haemodynamics of patients with acute type B or acute non-A non-B AD by means of computational fluid dynamics. Wall pressure and wall shear stress (WSS) in both the true lumen (TL) and false lumen (FL) at early, mid- and late systole were evaluated. Morphology, WSS and the FL/TL wall pressure ratio were compared between groups.

Results

Nineteen patients (type B, n = 7; non-A non-B, n = 12) were included. The median age (51 [46, 67] vs 53 [50, 63] years; P = 0.71) and a complicated course (14% vs 33%; P = 0.6) did not differ between the type B group and the non-A non-B group. However, the median

SUBMITTER: Kimura N 

PROVIDER: S-EPMC9486891 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature