A Prospective Observational Study on Role of Intraoperative Renal & Muscle Oxygen Saturation on Post-Operative Serum Creatinine Level in Patients Undergoing Cardiac Surgery on Cardiopulmonary Bypass

March 5, 2026 No Comments

This prospective observational study evaluated whether intraoperative renal (SrO₂) and thenar muscle oxygen saturation (SmO₂), measured using near-infrared spectroscopy (NIRS), could predict post-operative increases in serum creatinine in patients undergoing cardiac surgery with cardiopulmonary bypass. Among 55 patients, a >20% decrease in renal oxygen saturation strongly predicted post-operative creatinine rise, while a 15% decrease in muscle oxygen saturation also showed strong predictive value. Both parameters were significantly correlated.

Goal-Directed Perfusion Monitoring During Cardiopulmonary Bypass

Mini-Compendium on Goal-Directed Perfusion (GDP): Integrating Hemodynamic and Metabolic Determinants of Oxygen Delivery During Cardiopulmonary Bypass

March 5, 2026 No Comments

This narrative review presents a mini-compendium on Goal-Directed Perfusion (GDP), a physiology-based strategy for optimizing cardiopulmonary bypass. GDP integrates oxygen delivery, metabolic indicators, and perfusion pressure to maintain tissue oxygenation and prevent organ injury. Key variables such as DO₂i, O₂ extraction, CO₂ production, and MAP are combined with time-dose models to detect oxygen debt early and personalize perfusion management.