Which approach best minimizes CPB-related inflammation and edema?

• A. Prolong CPB time
• B. Increase crystalloid load
• C. Use nonbiocompatible circuits
• D. Use biocompatible circuits, ultrafiltration, minimize CPB time, anti-inflammatory strategies

Answer: (D)

Inflammation and edema during cardiopulmonary bypass arise when blood interacts with artificial surfaces and experiences overall inflammatory mediator release, volume shifts, and tissue injury. The best approach combines several proven strategies that tackle different parts of this process: using biocompatible circuits reduces surface-induced activation of the inflammatory cascade; ultrafiltration helps remove excess fluid and inflammatory mediators; minimizing CPB time lowers the duration of exposure to triggers; and applying anti-inflammatory strategies further blunts the systemic response. Together, these elements address the root drivers of CPB-related inflammation and edema more effectively than any single measure. Prolonging bypass, increasing crystalloid load, or using nonbiocompatible circuits would all tend to worsen inflammation or edema.