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Updated: Jun 28, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Remimazolam versus midazolam for moderate sedation in gastrointestinal endoscopy: a systematic review and
Umar Akram1, Eeman Ahmad2, Shahzaib Ahmed2
1Department of Medicine, Allama Iqbal Medical College, Lahore, Pakistan.
Background And Aims:
Sedation is commonly used during GI endoscopy to improve patient comfort and procedural tolerance. Midazolam is a widely used agent but may be associated with adverse effects and delayed recovery. Remimazolam, an ultrashort-acting benzodiazepine, has emerged as a potential alternative with rapid onset and recovery. The aim of this review is to compare remimazolam with midazolam for sedation in patients undergoing GI endoscopy.
Methods:
A systematic search was conducted across PubMed, Cochrane CENTRAL Library, Google Scholar, and ClinicalTrials.gov from inception till March 2026. Only randomized controlled trials (RCTs) comparing remimazolam with midazolam for sedation in GI endoscopy and reporting any outcome of interest were considered eligible. Statistical analysis was performed using RStudio (R Foundation for Statistical Computing).
Results:
A total of 9 RCTs involving 1251 patients were included. Meta-analysis showed no significant difference in sedation success (risk ratio, 1.49; P = .08) between remimazolam and midazolam in patients undergoing GI endoscopy. However, compared with midazolam, remimazolam significantly reduced induction time (mean difference [MD], -4.39 minutes; P = .04), time to full alertness (MD, -4.65 minutes; P = .012), recovery time (MD, -15.66 minutes; P ≤ .001), and discharge time (MD, -7.62 minutes; P = .04), and was associated with significantly higher patient satisfaction (standardized MD, 0.34; P < .01). In addition, remimazolam significantly reduced the risk of hypotension (odds ratio [OR], 0.47; P < .001) and bradycardia (OR, 0.59; P = .037), while other adverse events were comparable between groups.
Conclusions:
Remimazolam demonstrated sedation success comparable to midazolam in patients undergoing GI endoscopy. However, it was associated with faster induction and recovery times, higher patient satisfaction, and a lower risk of hypotension and bradycardia. These findings suggest that remimazolam may represent a safer and more efficient alternative to midazolam for procedural sedation during GI endoscopy. Nevertheless, substantial heterogeneity observed across several outcomes warrants cautious interpretation of these findings.
Insights
Remimazolam offers comparable sedation success to midazolam for GI endoscopy but with faster recovery and higher patient satisfaction. This ultra-short-acting benzodiazepine may be a safer alternative, reducing hypotension and bradycardia risks.
Area of Science:
- Pharmacology and Gastroenterology
- Clinical Trial Analysis
- Procedural Sedation
Background:
- Midazolam is a common agent for gastrointestinal (GI) endoscopy sedation, but can cause delayed recovery and adverse effects.
- Remimazolam, an ultra-short-acting benzodiazepine, offers potential for rapid onset and recovery.
- Comparing remimazolam and midazolam is crucial for optimizing procedural sedation in GI endoscopy.
Purpose of the Study:
- To systematically review and compare the efficacy and safety of remimazolam versus midazolam for sedation during GI endoscopy.
- To evaluate key outcomes including sedation success, induction and recovery times, patient satisfaction, and adverse events.
Main Methods:
- A systematic literature search was performed across major databases (PubMed, Cochrane CENTRAL, Google Scholar, clinicaltrials.gov) up to March 2026.
- Included studies were randomized controlled trials (RCTs) directly comparing remimazolam and midazolam for GI endoscopy sedation.
- Meta-analysis was conducted using R studio to synthesize data from 9 RCTs involving 1,251 patients.
Main Results:
- No significant difference in sedation success rates was found between remimazolam and midazolam (p=0.08).
- Remimazolam significantly reduced induction time (p=0.04), time to full alertness (p=0.012), recovery time (p<0.001), and discharge time (p=0.04).
- Remimazolam was associated with higher patient satisfaction (p<0.01) and significantly lower risks of hypotension (p<0.001) and bradycardia (p=0.037).
Conclusions:
- Remimazolam provides comparable sedation success to midazolam for GI endoscopy but offers faster recovery and improved patient experience.
- Remimazolam demonstrates a favorable safety profile, with reduced risks of hypotension and bradycardia compared to midazolam.
- Remimazolam represents a potentially safer and more efficient alternative for procedural sedation in GI endoscopy, though heterogeneity requires cautious interpretation.
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