Intraoperative burst suppression is associated with postoperative delirium following cardiac surgery: a prospective, observational study.

ABSTRACT:

Background

Postoperative delirium (POD) occurs frequently after cardiac surgery and is associated with increased morbidity and mortality. We analysed whether perioperative bilateral BIS monitoring may detect abnormalities before the onset of POD in cardiac surgery patients.

Methods

In a prospective observational study, 81 patients undergoing cardiac surgery were included. Bilateral Bispectral Index (BIS)-monitoring was applied during the pre-, intra- and postoperative period, and BIS, EEG Asymmetry (ASYM), and Burst Suppression Ratio (BSR) were recorded. POD was diagnosed according to the Confusion Assessment Method for the Intensive Care Unit, and patients were divided into a delirium and non-delirium group.

Results

POD was detected in 26 patients (32%). A trend towa

SUBMITTER: Soehle M 

PROVIDER: S-EPMC4419445 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature