Base deficit in immediate postoperative period of coronary surgery with cardiopulmonary bypass and length of stay in intensive care unit

Abstract

Objective: To assess the relationship between the base deficit value in the immediate postoperative period of coronary surgery for cardiopulmonary bypass and the length of stay in the ICU.

Design and setting: Prospective descriptive study in the department of anesthesia and cardiovascular surgery of a university hospital.

Patients: 185 consecutive patients.

Interventions: Coronary artery bypass graft with cardiopulmonary by pass.

Measurements and results: Thirty variables were determined during the pre-, intra-, and postoperative periods; a statistical univariate analysis was performed differentiating patients whose length of stay in the ICU was 2 days or less and those whose stay was more than 2 days. Secondly, a logistic regression model was performed on the variables shown to have a statistically significant difference in univariate analysis, with determination of the odd ratio. Fourteen variables had a statistically significant difference in univariate analysis and three of them highlighted by the logistic regression model: administration of catecholamines, base deficit value in the 1st h postoperatively, and age with odd ratios, respectively, of 3.15, 1.51, and 1.07).

Conclusions: The value of base deficit measured during the 1st h after coronary surgery for cardiopulmonary bypass is correlated with the length of stay in ICU.