In vitro modeling of crimped Dacron vascular grafts for aortic root replacement.

ABSTRACT:

Objective

To objectively quantify the effect of flattening the crimps in Dacron tube grafts on the radial compliance under pulsatile pressure. We aimed to minimize the dimensional changes in woven Dacron graft tubes by applying axial stretch to the graft. We hypothesize this might reduce the risk of coronary button misalignment in aortic root replacement.

Methods

In an in vitro pulsatile model that delivered systemic circulatory pressures to Dacron tube grafts, we measured oscillatory movements in 26-30 mm Dacron vascular tube grafts before and after flattening the graft crimps. We also describe our surgical methods and clinical experiences in replacing the aortic root.

Results

Flattening the crimps in Dacron tubes with axial stretching significantly reduced the mean

SUBMITTER: Nazer RI 

PROVIDER: S-EPMC10193250 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature