Evidence map›Paper›PMID 41546692›Full record

SynthesisEuropean journal of clinical pharmacology2026

Efficacy and safety of esketamine for sedation during colonoscopy: A systematic review and Meta-analysis of randomized controlled trials.

Zainab Hussein, Amira Mohamed Taha, Alaa Abdrabou Abouelmagd, Mohamed Nasser Elshabrawi, Abdul Karim Durvesh, Eman Ayman Nada, Mohamed Abuelazm, Mohamed Elnaggar, Ismail Elkhattib

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in European journal of clinical pharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Zainab HusseinFaculty of Medicine, Minia University, Minia, Egypt.
Amira Mohamed TahaFaculty of Medicine, Fayoum University, Fayoum, Egypt.
Alaa Abdrabou AbouelmagdFaculty of Medicine, South Valley University, Qena, Egypt.
Mohamed Nasser ElshabrawiClinical Research Department, Aswan Heart Center, Magdi Yaqoup Foundation, Aswan, Egypt.
Abdul Karim DurveshSindh Institute of Advanced Endoscopy and Gastroenterology (SIAG), Karachi, Pakistan.
Eman Ayman NadaFaculty of Pharmacy, Tanta University, Gharbia, Egypt.
Mohamed AbuelazmFaculty of Medicine, Tanta University, Tanta, Egypt.
Mohamed ElnaggarHartford Healthcare, Hartford, CT, USA.
Ismail ElkhattibUniversity of Nebraska Medical Centre, Omaha, NE, USA. ielkhattib@unmc.edu.ORCID http://orcid.org/0000-0003-0759-1010

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHemodynamic instability during colonoscopy sedation remains a significant clinical concern. Esketamine's sympathomimetic properties may protect against these risks while reducing sedative requirements. Hence, we aim to evaluate the efficacy and safety of esketamine in improving intraprocedural sedation during colonoscopy.

methodsWe systematically searched PubMed, Scopus, CENTRAL, and Web of Science until June 2025 for randomized controlled trials. The primary outcome was the incidence of intraprocedural hypotension; secondary outcomes included bradycardia, hypoxemia, and recovery parameters. Dichotomous outcomes were pooled using risk ratios (RR) and continuous outcomes using standardized mean differences (SMD), with heterogeneity assessed via I² statistics. PROSPERO ID: CRD420251105691.

resultsFive randomized controlled trials comprising 858 patients were included in our analysis. Esketamine significantly reduced the risk of intraprocedural hypotension (RR: 0.34, 95% CI 0.22-0.53; I²=58%) and the incidence of hypoxemia (RR: 0.38, 95% CI 0.19-0.73; I²=0%). A reduction in injection pain was also observed (RR: 0.42, 95% CI 0.19-0.97; I²=80.5%), though this finding showed sensitivity in leave-one-out analysis. No significant differences were found between groups in bradycardia risk (RR: 0.51, 95% CI 0.23-1.14), total propofol requirement (SMD: -0.23, 95% CI -0.50 to 0.04), induction time, or procedure duration. The reduction in hypotension remained robust in sensitivity analyses.

conclusionEsketamine significantly enhanced hemodynamic stability and reduced sedative demand during colonoscopy without delaying recovery, supporting its use in high-risk patients.

Indexed as

ColonoscopyHypnotics and SedativesKetamineProcedural SedationBradycardiaHumansHypotensionHypoxiaRandomized Controlled Trials as TopicEsketamineHypnotics and SedativesKetamineAnaesthesiaColonoscopy sedationEndoscopeEndoscopyEsketaminePropofol

Identifiers

PMID41546692
PMCPMC12812101

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.