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Arterial oxygen desaturation during gastrointestinal endoscopy.
D S Dark1, D R Campbell, L J Wesselius
1Division of Pulmonary Disease and Critical Care Medicine, University of Kansas School of Medicine, Kansas City.
The American Journal of Gastroenterology
|October 1, 1990
Summary
Gastrointestinal endoscopy frequently causes arterial oxygen desaturation. Severe oxygen desaturation, indicating hypoxemia, occurred in 32% of patients, highlighting the need for continuous monitoring during these procedures.
Area of Science:
- Medical Research
- Gastroenterology
- Pulmonology
Background:
- Arterial oxygen desaturation is a potential risk during endoscopic procedures.
- Understanding the incidence and severity is crucial for patient safety.
Purpose of the Study:
- To evaluate the incidence and severity of arterial oxygen desaturation during gastrointestinal endoscopy.
- To assess the frequency of severe desaturation and hypoxemia.
Main Methods:
- Prospective study involving 115 male patients undergoing esophagogastroduodenoscopy (EGD) or colonoscopy.
- Continuous monitoring of arterial oxygen saturation (SaO2) and pulmonary function testing.
- Categorization of desaturation severity based on SaO2 levels and hypoxemia (PaO2).
Main Results:
- 70% of patients (80/115) experienced arterial oxygen desaturation.
- Severe desaturation (SaO2 ≤ 85%) occurred in 32% (37/115) of patients.
- Incidence of severe desaturation varied by procedure: EGD (15%), colonoscopy (50%), and combined (57%).
Conclusions:
- Arterial oxygen desaturation is common and often severe during gastrointestinal endoscopy.
- The findings support continuous SaO2 monitoring as a standard for all endoscopic procedures.
- This monitoring is essential for managing potential hypoxemia risks.