Patient tilt improves efficacy of CO₂ field-flooding in minimally invasive cardiac surgery.

ABSTRACT:

Objective

Space limitations during minimally invasive cardiac surgery impede consistent use of CO₂ field-flooding. We compared different gas delivery methods, flow rates and the effect of patient inclination.

Methods

A gastight model of MICS surgery with internal organs and right thoracotomy wound was created from a mannequin and equipped with a CO₂ concentration sensor in the left ventricle. Maximum achievable CO₂ concentration was compared for gas delivery via three commercial CO₂ diffusors (CarbonMini, Temed, Andocor) and also via a trocar with side port. Gas flow rates of 1, 3, 5 and 8 L per minute were tested. The model was placed either in supine position or with 20° oblique tilt. A simplified transparent model was also creat

SUBMITTER: Vandenberghe S 

PROVIDER: S-EPMC9219288 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature