Trial reportBMC anesthesiology2024
Effect of esketamine on postoperative analgesia and postoperative delirium in elderly patients undergoing gastrointestinal surgery.
Trial report in BMC anesthesiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 45 papers, 10 of them syntheses that pooled 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.
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.
Effect of Perioperative Low-dose EsketaMine on dElirium in High-risk Elderly Patients uNdergoing elecTive Major Non-cardiac Surgery: a Multi-center Randomized Trial (ELEMENT Trial)
Effect of Perioperative Use of Dexmedetomidine-esketamine Combination on Incidence of Moderate-to-severe Pain After Spinal Surgery: a Randomized Controlled Trial
Effect of Perioperative Use of Dexmedetomidine-esketamine Combination on Incidence of Chronic Postsurgical Pain After Spinal Surgery: a Randomized Controlled Trial
Effect of Opioid-free Anesthesia on Postoperative Delirium in Elderly Patients Undergoing Gastrointestinal Surgery
Who cites it
45 citing papers in PubMed, 10 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- Pooled it
- Effectiveness of ketamine/esketamine in alleviating postoperative fatigue: a systematic review.International journal of clinical pharmacy · 2026Pooled it
- Effect of perioperative esketamine administration on the incidence of postoperative delirium: a systematic review and meta-analysis.BMC anesthesiology · 2026Pooled it
- Effects of esketamine on postoperative delirium in adult patients: a systematic review and meta-analysis of randomized controlled trials.Frontiers in neurology · 2026Pooled it
- A comprehensive review and meta-analysis on the safety and efficacy of esketamine for emerging delirium in elderly patients.Frontiers in medicine · 2026Pooled it
- Efficacy and safety of ketamine and esketamine for preventing opioid-induced cough: a systematic review and meta-analysis of randomized controlled trials.Systematic reviews · 2025Pooled it
- Pooled it
- The effect of esketamine on postoperative delirium in patients undergoing general anesthesia: a systematic review and meta-analysis.Frontiers in pharmacology · 2025Pooled it
- Esketamine and neurocognitive disorders in adult surgical patients: a meta-analysis.BMC anesthesiology · 2024Pooled it
- Effect of esketamine on postoperative delirium in general anesthesia patients undergoing elective surgery: a meta-analysis of randomized controlled trials.BMC anesthesiology · 2024Pooled it
- Esketamine combined with hydromorphone versus hydromorphone for post-operative patient-controlled intravenous analgesia in children: a randomized controlled trial.European journal of medical research · 2026Trial
- Effect of Subanesthetic Doses of Esketamine on Early Postoperative Pain Sensitivity in Patients Undergoing Salpingectomy: A Randomized Clinical Trial.Drug design, development and therapy · 2026Trial
- ED95 of Ciprofol Combined with Esketamine or Sufentanil in Elderly Patients Undergoing Endoscopic Submucosal Dissection: A Dose-Finding and Randomized Controlled Trial.Drug design, development and therapy · 2026Trial
- Appropriate Combination of Nalbuphine Combined With Esketamine for Weakly Opioid Anesthesia in Postlaparoscopic Cholecystectomy Analgesia: A Randomized Controlled Trial.Pain research & management · 2026Trial
- Esketamine attenuates hemodynamic oscillations during anesthesia induction in elderly gastrointestinal surgical patients: a randomized trial.BMC anesthesiology · 2025Trial
- The effects of esketamine on postoperative delirium in older patients with fragile brain function during the non-acute phase following lung cancer surgery: a randomized controlled trial.BMC geriatrics · 2025Trial
- Effect of Subanesthetic Dose of Esketamine on Liver Function Following Microvascular Reconstruction for Head and Neck Cancer: A Randomized Controlled Trial.Drug design, development and therapy · 2025Trial
- The Comparison of the Efficacy of Esketamine Over Sufentanil to Reduce Postoperative Nausea and Vomiting in Gynecological Laparoscopic Surgery: A Prospective, Double-Blind, Randomized Controlled Trial.Drug design, development and therapy · 2025Trial
- Intraoperative Administration of Esketamine is Associated with Reduced Opioid Consumption After Laparoscopic Gynecological Surgery: A Randomized Controlled Trial.Drug design, development and therapy · 2025Trial
- Trial
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo investigate the analgesic effect of esketamine combined with low-dose sufentanil in elderly patients after gastrointestinal surgery, and whether the anti-inflammatory effect of esketamine is involved in the mechanism of postoperative delirium.
methodWe enrolled sixty elderly patients (age ≥ 65 years old, American Society of Anesthesiologists (ASA) grade I-III) who underwent gastrointestinal surgery. Patients were randomly assigned to Group C (control group) who received sufentanil 2 ug/kg, and Group E (experimental group) who received sufentanil 1.5 ug/kg + esketamine 1 mg/kg, with 30 patients in each group. All patients underwent total intravenous anesthesia during the surgery and were connected to a patient-controlled intravenous analgesia (PCIA) pump after surgery. The primary outcome was the evaluation of pain at 4, 24, 48 h after surgery which was evaluated by NRS scores. In secondary outcomes, inflammation was assessed by measuring IL-6 levels using ELISA. The postoperative delirium and the occurrence of adverse reactions were observed on the 1st and 3rd day after surgery.
resultsThe NRS scores at 4, 24, and 48 h after surgery in the experimental group [(4.53 ± 1.22), (3.46 ± 0.73), (1.37 ± 0.99)] were lower than that in the control group [(5.23 ± 1.16), (4.46 ± 0.77), (2.13 ± 0.78)] (P < 0.05). The concentration of serum IL-6 in the experimental group at 24 and 48 h after operation [(15.96 ± 4.65), (11.8 ± 3.24)] were lower than that in the control group [(23.07 ± 4.86), (15.41 ± 4.01)] (P < 0.05); the incidence of postoperative delirium in the experimental group was less than that in the control group (P < 0.05); there was no significant difference in the incidence of postoperative nausea and vomiting between the two groups (P > 0.05), and neither group had nightmares or delirium.
conclusionEsketamine may enhance postoperative pain management compare with sufentanil, and esketamine has anti-inflammatory effects that reduce the incidence of postoperative delirium.
trial registrationFull name of the registry: Chinese Clinical Trial Registry. TRIAL REGISTRATION NUMBER: ChiCTR2300072374. Date of registration:2023/06/12.
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Registered trials
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.