Equal Ratio Ventilation Reduces Blood Loss During Posterior Lumbar Interbody Fusion Surgery.

ABSTRACT:

Study design

A prospective randomized double-blinded study.

Objective

The aim of this study was to compare the effect of two different ventilator modes (inspiratory to expiratory ratio [I:E ratio] of 1:1 and 1:2) on intraoperative surgical bleeding in patients undergoing posterior lumbar interbody fusion (PLIF) surgery.

Summary of background data

During PLIF surgery, a considerable amount of blood loss is anticipated. In the prone position, engorgement of the vertebral vein increases surgical bleeding. We hypothesized that equal ratio ventilation (ERV) with I:E ratio of 1:1 would lower peak inspiratory pressure (PIP) in the prone position and consequentially decrease surgical bleeding.

Methods

Twenty-eight patients were randomly assigned to receive either ERV (

SUBMITTER: Kim HB 

PROVIDER: S-EPMC8327934 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature