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CO₂ rebreathing
The physiological phenomenon where absorbed carbon dioxide from pneumoperitoneum increases systemic CO₂ levels.
Full Definition
CO₂ rebreathing occurs during laparoscopic surgery when carbon dioxide used for insufflation is absorbed through the peritoneal surface and increases the body's total CO₂ load. This phenomenon requires compensatory increases in minute ventilation to maintain normal end-tidal CO₂ levels and can be particularly challenging in patients with compromised respiratory function. Anesthesiologists must monitor and adjust ventilatory parameters throughout the procedure to prevent hypercapnia and respiratory acidosis.
Usage
Usage note: Use subscript for CO₂ in formal medical writing.
In Context
- "Prolonged procedures may require increased minute ventilation due to CO₂ rebreathing." — Anesthesia management protocol
- "CO₂ rebreathing effects are more pronounced in pediatric laparoscopic surgery." — Pediatric anesthesia review
Also known as
CO₂ absorption
hypercapnia risk
Contrasted with
CO₂ elimination
Don't confuse with
CO₂ embolism
pneumoperitoneum pressure