An ex vivo evaluation of two different suture techniques for the Ozaki aortic neocuspidization procedure.

ABSTRACT:

Objectives

We investigated the Ozaki procedure using a single interrupted suture technique (SST) and compared this with the standard continuous suture technique (CST) with regard to hydrodynamic valve performance. In addition, both techniques were compared with the native aortic valve (NAV).

Methods

Effective orifice area, mean pressure gradient and leakage volume were evaluated in the NAV as well as after an Ozaki procedure using SST or CST in fresh swine aortic roots using a mock circulation loop. The NAV, SST and CST were evaluated under 4 defined hydrodynamic conditions.

Results

Both suture techniques resulted in a similar effective orifice area under all conditions [for stroke volume of 70 ml: SST: 1.50 (1.35-1.87) vs CST: 1.57 (1.41-1.72) cm2, P = 0.8] and there

SUBMITTER: Saisho H 

PROVIDER: S-EPMC8923410 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature