Year: 2026 | Month: June | Volume: 16 | Issue: 6 | Pages: 238-249
DOI: https://doi.org/10.52403/ijhsr.20260627
Cardiopulmonary Bypass-Related Determinants of Adverse Postoperative Outcomes in Adult Cardiac Surgery: A Comprehensive Narrative Review
Nihal P Jagtap1, Sunil S Sankannavar2, Abhijeet B Shitole3, Anushri P Patil4
1M. Sc Perfusion Technology Trainee, Department of Perfusion Technology, School of Allied Health Sciences, KLE Academy of Higher education and Research, KAHER (Deemed to be University) Belagavi, Karnataka, India 590010.
2Tutor, Department of Perfusion Technology, School of Allied Health Sciences, KLE Academy of Higher education and Research, KAHER (Deemed to be University) Belagavi, Karnataka, India 590010.
3Associate Professor, Department of Cardiac Anaesthesia, Jawaharlal Nehru Medical College, KLE Academy of Higher education and Research, KAHER (Deemed to be University) Belagavi, Karnataka, India 590010.
4Assistant Professor, Department of Epidemiology and Biostatistics, School of Allied Health Sciences, KLE Academy of Higher education and Research, KAHER (Deemed to be University) Belagavi, Karnataka, India 590010.
Corresponding Author: Abhijeet B Shitole
ABSTRACT
Background: Cardiopulmonary bypass (CPB) remains the cornerstone of modern adult cardiac surgery. However, obligate exposure to the extracorporeal circuit precipitates a systemic inflammatory response syndrome (SIRS), hemodilution, and coagulopathy. These non-physiologic states drive significant multi-organ morbidity and perioperative mortality.
Objective: To present qualitative evidence on CPB-related determinants of adverse outcomes focusing on extent of extracorporeal exposure, inflammatory activation and systemic inflammatory response syndrome and coagulopathy. The review further aims to discuss postoperative multiorgan dysfunction and its actionable mitigation strategies in perioperative period.
Methods: A comprehensive literature search was conducted across PubMed, Cochrane Library, and Google Scholar up to 2026. Keywords included cardiopulmonary bypass, systemic inflammatory response, coagulopathy, acute kidney injury, transesophageal echocardiography, and perioperative outcomes.
Results: Prolonged CPB time more than 120 minutes independently increases postoperative mortality by 1.6-fold. The incidence of adverse outcomes including acute kidney injury (AKI), postoperative atrial fibrillation (POAF) and reoperation for bleeding (re-exploration) was 10–30%, 20–40% and 2–7% respectively. Evidence-based mitigation strategies demonstrate substantial efficacy and reduction in post operative adverse outcomes. Lung-protective ventilation reduces pulmonary complications by 25%, routine antifibrinolytic therapy decreases transfusion requirements by up to 30%, and goal-directed viscoelastic monitoring reduces bleeding and transfusion associated adverse outcomes. Furthermore, real-time advanced hemodynamic monitoring facilitates like transesophageal echocardiography aid in early detection and management of hemodynamic compromise and cardiac dysfunction paving way for early action and mitigation.
Conclusion: The pathophysiological insults of CPB are predictable and highly modifiable. Standardized implementation of evidence-based perioperative bundles, driven by precise pharmacological, mechanical, and intraoperative monitoring strategies, drastically improves clinical outcomes and optimizes resource utilization in adult cardiac surgery.
Key words: cardiopulmonary bypass, systemic inflammatory response, extracorporeal circulation, coagulopathy, transesophageal echocardiography, postoperative outcomes, adult cardiac surgery.