ICU sedation, delirium & recovery
Effect of end-expiratory carbon dioxide monitoring on painless colonoscopy procedures in obstructive sleep apnea patients
Authors' conclusion
Employing disposable end-expiratory CO2 monitoring during painless enteroscopic procedures in patients with OSAS reduces the incidence of hypoxemia, enhances postoperative satisfaction, and decreases the incidence of postoperative complications.
Study context
- Population
- Patients with OSA syndrome undergoing painless colonoscopy
- Participants
- 158 patients
- Comparison
- End-expiratory CO2 monitoring vs routine monitoring
- Outcome
- Hypoxemia incidence, use of upper airway ventilation devices and postoperative satisfaction
Methodological detailsAll colonoscopic procedures were performed by surgeons
- All colonoscopic procedures were performed by surgeons
Main finding
As reported in the abstract
- Lower incidence of hypoxemia in the study group vs control
- P = 0.019
- Higher utilization of upper airway ventilation devices in the study group vs control
- P = 0.002
- Greater postoperative satisfaction in the study group vs control
- P < 0.001
Observational data: associations, not effects.
Safety
Postoperative complications
- Higher incidence of PONV in the control group
- P = 0.006
- Higher incidence of abdominal pain in the control group
- P = 0.038
- Higher incidence of abdominal distension in the control group
- P < 0.012
Original publication
Effect of end-expiratory carbon dioxide monitoring on painless colonoscopy procedures in obstructive sleep apnea patients. Perioper Med (Lond). Published 17 March 2025. doi:10.
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