Trial reportDrug design, development and therapy2025
Dose-Dependent Effects of Remimazolam on Early Perioperative Neurocognitive Disorders in Elderly Colorectal Cancer Patients Undergoing Laparoscopic Surgery.
Trial report in Drug design, development and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The impact of remimazolam on postoperative neurocognitive disorder in elderly surgical patients: a systematic review and meta-analysis.Frontiers in pharmacology · 2026Pooled it
- The delirium dichotomy of remimazolam: a differential risk profile for emergence delirium versus postoperative delirium in surgical patients: a systematic review and meta-analysis.Frontiers in medicine · 2026Pooled it
- Perioperative neurocognitive disorder in colorectal cancer surgery: a systematic review of incidence, mechanisms, and interventions.Frontiers in surgery · 2025Pooled it
- Effects of remimazolam and sevoflurane on postoperative delirium and early cognitive impairment in elderly patients after laparoscopic-assisted gastrointestinal surgery: a randomized clinical trial.Frontiers in medicine · 2026Trial
- Effects of Remimazolam on Perioperative Inflammatory Response and Neurocognitive Disorders in Elderly Patients Undergoing Video-Assisted Thoracic Surgery: A Randomized Controlled Trial.Drug design, development and therapy · 2025Trial
- Methodology of analysis of cognitive impairment in longitudinal randomized clinical trials in oncology: a scoping review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026Article
- Remimazolam Versus Propofol for General Anesthesia in Older Adults Undergoing Colon Cancer Surgery: A Systematic Review and Meta-Analysis of Comparative Studies.Pharmaceutics · 2026Review
- Cognitive Impact of Colorectal Cancer Surgery in Elderly Patients: A Narrative Review.Cancers · 2026Review
- Effects of spontaneous breathing anesthesia on postoperative cognitive dysfunction in elderly patients: a narrative review.Frontiers in surgery · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To study the effect of different doses of remimazolam on the maintenance of anesthesia and its impact on postoperative cognitive function in elderly patients undergoing laparoscopic colorectal surgery. Methods: A total of 120 elderly patients scheduled for laparoscopic colorectal surgery under general anesthesia (both sexes included, ASA grade (II-III) were randomly assigned to experimental groups (R1-R3) and control group (P), with 30 cases per group. The experimental groups received different remimazolam maintenance doses: R1 (0.5 mg/kg/h), R2 (1.0 mg/kg/h), and R3 (1.5 mg/kg/h), while the control group received propofol for sedation. Perioperative cognitive function was evaluated using MMSE (Mini-Mental State Examination) and MoCA (Montreal Cognitive Assessment) preoperatively, and on postoperative days 3 and 7, to analyze differences in cognitive effects and safety profiles of remimazolam across the four groups. Results: A total of 117 patients were ultimately included, with 3 excluded due to intraoperative conversion to open surgery. Participants were randomly allocated into four groups according to remimazolam maintenance dosing regimens: 30 in the R1 group, 28 in the R2 group, 30 in the R3 group, and 29 in the P group.There was no statistically significant difference in postoperative cognitive function scores between the R2 and R3 groups, and both groups had scores that were significantly higher than those of the R1 and P groups, with statistically significant differences. Conclusion: Compared to propofol, remimazolam at medium and high doses can reduce the incidence of perioperative neurocognitive dysfunction in elderly patients. High-dose remimazolam anesthesia maintenance may prolong extubation time, increase the incidence of postoperative shivering, and potentially lead to re-sedation after awakening, so medium-dose remimazolam is more suitable for intraoperative anesthesia maintenance in elderly patients without increasing the incidence of adverse events.
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