Association of low mixed venous oxygen saturations during early ICU stay with increased 30-day and 1-year mortality after cardiac surgery: a single-center retrospective study.

ABSTRACT:

Background

Low postoperative mixed venous oxygen saturation (SvO₂) values have been linked to poor outcomes after cardiac surgery. The present study was designed to assess whether SvO₂ values of < 60% at intensive care unit (ICU) admission and 4 h after admission are associated with increased mortality after cardiac surgery.

Methods

During the years 2007-2020, 7046 patients (74.4% male; median age, 68 years [interquartile range, 60-74]) underwent cardiac surgery at an academic medical center in Finland. All patients were monitored with a pulmonary artery catheter. SvO₂ values were obtained at ICU admission and 4 h later. Patients were divided into four groups for analyses: SvO₂ ≥ 60% at ICU admission and 4 h later; SvO₂ 

SUBMITTER: Kaakinen TI 

PROVIDER: S-EPMC9580133 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature