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Updated: Jun 8, 2026

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Published on: December 6, 2016
The effect of sedation during upper gastrointestinal endoscopy
Atul Sachdeva1, Ashish Bhalla, Ashwani Sood
1Department of Internal Medicine, Post-Graduate Institute of Medical Education and Research, Chandigarh, India.
Sedation with midazolam or diazepam did not significantly reduce patient discomfort during endoscopy. However, physicians found performing endoscopy easier with sedated patients, with no significant difference between the two sedatives.
Area of Science:
- Gastroenterology
- Anesthesiology
- Clinical Pharmacology
Background:
- Sedation is often used to reduce patient discomfort during endoscopic procedures.
- Diazepam and midazolam are commonly used sedatives with different pharmacokinetic profiles.
Purpose of the Study:
- To evaluate the efficacy of sedation in reducing patient discomfort during upper gastrointestinal endoscopy.
- To compare the effectiveness of longer-acting diazepam versus shorter-acting midazolam for sedation.
Main Methods:
- A prospective, randomized, single-blinded study involving 252 patients undergoing endoscopy.
- Patients were randomized to receive placebo, diazepam, or midazolam before the procedure.
- Patient discomfort and physician comfort were assessed using a visual analogue scale.
Main Results:
- No statistically significant difference in patient discomfort was observed between sedated and unsedated groups (P=0.0754).
- Physician comfort during endoscopy was significantly higher in sedated patients compared to unsedated patients (P=0.0461).
- Both diazepam and midazolam were equally effective in improving physician comfort (P=0.617).
Conclusions:
- Sedation with midazolam or diazepam does not significantly reduce patient discomfort during endoscopy.
- Endoscopists experienced greater ease performing procedures on sedated patients.
- There was no significant difference in patient discomfort or physician comfort between diazepam and midazolam.
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