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Oxygen saturation post-gastroscopy and post-colonoscopy
Summary
Pulse oximetry monitoring after endoscopy is crucial. Oxygen desaturation occurs in 24% of patients post-procedure, influenced by baseline saturation, smoking history, and age.
Area of Science:
- Medical monitoring
- Gastroenterology
- Anesthesiology
Background:
- No established standard of care for pulse oximetry monitoring during and after endoscopic procedures.
- Need to understand post-procedure oxygen desaturation and its predictors.
Purpose of the Study:
- To determine the occurrence of oxygen desaturation after gastroscopy and colonoscopy.
- To identify characteristics predictive of post-procedure desaturation.
Main Methods:
- Convenience sample of 475 adult patients undergoing endoscopy.
- Received meperidine and/or midazolam for conscious sedation.
- Oxygen saturation monitored every 10 minutes for 1 hour post-procedure; 90% or less triggered oxygen therapy resumption.
Main Results:
- Oxygen desaturation occurred in 24% of patients during the recovery phase.
- Most desaturation events happened within the first 10 minutes post-procedure.
- Predictive factors for desaturation included pre-procedure baseline oxygen saturation, smoking history, and age.
Conclusions:
- Oxygen desaturation is a significant concern following endoscopy.
- Baseline oxygen saturation, smoking history, and age are key predictors of post-endoscopy desaturation.
- Further research is needed to establish a standard of care for monitoring.