Correlation between the duration of cardiopulmonary bypass (on-pump), mechanical support, and length of stay in the intensive care unit: A cross sectional study
Abstract
Background: Length of stay in the Intensive Care Unit (ICU) is a significant indicator in the management of cardiac surgery patients. Cardiopulmonary bypass (CPB) is used in a large number of cardiac procedures, while the duration of mechanical ventilation may affect both the length of ICU stay and the prognosis of these patients.
Method and Material: This was a cross-sectional study with convenience sampling, where data were collected from June 2024 to September 2024. The study involved 100 patients who underwent cardiac surgery with cardiopulmonary bypass at the General Hospital of Athens “HIPPOKRATEIO.” Information was obtained from patients’ medical and nursing records, without any direct interventions. A specially designed form, developed by the researcher based on a thorough review of the literature and the most frequently reported perioperative variables associated with postoperative ICU outcomes. The form included sections on personal history, comorbid conditions, surgical details, intraoperative complications, ICU length of stay, and postoperative outcomes. Statistical tests included the Chi-square (x²) test, t-test, and Pearson correlation, with a significance level set at 5%. Statistical analysis was conducted using SPSS version 25.0.
Results: A total of 100 patients who underwent on-pump cardiac surgery were included. The majority were aged between 66 and 79 years, and 51% were male. A significant positive correlation was observed between the duration of cardiopulmonary bypass and both ICU length of stay (p=0.015) and the duration of mechanical ventilation (p=0.018). Similarly, longer surgery and aortic cross-clamp times were also associated with prolonged ICU hospitalization and extended respiratory support (p<0.001). These findings suggest that intraoperative time parameters significantly influence postoperative ICU outcomes.
Conclusions: The present study suggests that prolonged ICU stay is mainly influenced by comorbidities as well as intraoperative and postoperative factors, highlighting the need for optimization of perioperative management in cardiac surgery patients.
Article Details
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Narliotis , G. P. (2026). Correlation between the duration of cardiopulmonary bypass (on-pump), mechanical support, and length of stay in the intensive care unit: A cross sectional study. Health & Research Journal, 12(2), 73–81. https://doi.org/10.12681/healthresj.41624
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