Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis

BackgroundRemimazolam is a novel sedative drug approved for procedural sedation and general anesthesia. Clinical trials have already explored its use in elderly patients for general anesthesia. For elderly patients with declining physical and physiological function, anesthesia safety is crucial. Mos...

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Main Authors: Xianchun Liu, Longyi Zhang, Li Zhao, Xuelei Zhou, Wei Mao, Linlin Chen, Hongyu Zhu, Ying Xie, Linji Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2025.1409495/full
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author Xianchun Liu
Longyi Zhang
Li Zhao
Xuelei Zhou
Wei Mao
Linlin Chen
Hongyu Zhu
Ying Xie
Linji Li
author_facet Xianchun Liu
Longyi Zhang
Li Zhao
Xuelei Zhou
Wei Mao
Linlin Chen
Hongyu Zhu
Ying Xie
Linji Li
author_sort Xianchun Liu
collection DOAJ
description BackgroundRemimazolam is a novel sedative drug approved for procedural sedation and general anesthesia. Clinical trials have already explored its use in elderly patients for general anesthesia. For elderly patients with declining physical and physiological function, anesthesia safety is crucial. Most current clinical studies compare the safety of remimazolam and propofol, though the results are inconsistent. Therefore, we conducted a meta-analysis to compare the safety of remimazolam and propofol in general anesthesia for elderly patients.MethodsWe systematically searched the PubMed, Cochrane Library, Embase, and Web of Science databases for all published randomized controlled trials comparing remimazolam and propofol for general anesthesia in elderly patients. We synthesized data from eligible studies using relative risk or mean difference, and analyzed differences in hemodynamic stability and adverse effects between the two drugs. Data extraction and quality assessment were performed independently by two researchers.ResultsEight randomized controlled trials involving 571 participants were included. Compared to propofol, remimazolam was associated with a lower incidence of hypotension (RR = 0.51, 95% CI: [0.33, 0.81], I2 = 18%, p = 0.3 > 0.1) and bradycardia (RR = 0.56, 95% CI: [0.31, 1.02], Z = 1.88, p = 0.06 < 0.05). The mean arterial pressure after induction was higher in the remimazolam group (WMD = 3.95, 95% CI: [3.197, 9.498], Z = 3.95, p < 0.00001). The remimazolam group had a higher heart rate (HR) after induction compared to the propofol group (WMD = 7.89, 95% CI: [−2.39, 18.17], Z = 1.5, p = 0.13 > 0.05), but this result was not statistically significant. Among other secondary outcomes, the remimazolam group had lower incidences of injection site pain, nausea and vomiting, and hypoxemia compared to the propofol group, and also had a shorter extubation time.ConclusionIn this meta-analysis, compared to propofol, remimazolam reduced the incidence of hypotension, bradycardia, and injection site pain during general anesthesia in elderly patients. The mean arterial pressure (MAP) and heart rate (HR) were more stable after induction. Remimazolam may be a safer sedative for elderly patients.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42024516950, CRD42024516950.
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spelling doaj-art-d0b12ab823434c5f8c698f9c15a6f9cf2025-02-07T05:10:32ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-02-011210.3389/fmed.2025.14094951409495Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysisXianchun LiuLongyi ZhangLi ZhaoXuelei ZhouWei MaoLinlin ChenHongyu ZhuYing XieLinji LiBackgroundRemimazolam is a novel sedative drug approved for procedural sedation and general anesthesia. Clinical trials have already explored its use in elderly patients for general anesthesia. For elderly patients with declining physical and physiological function, anesthesia safety is crucial. Most current clinical studies compare the safety of remimazolam and propofol, though the results are inconsistent. Therefore, we conducted a meta-analysis to compare the safety of remimazolam and propofol in general anesthesia for elderly patients.MethodsWe systematically searched the PubMed, Cochrane Library, Embase, and Web of Science databases for all published randomized controlled trials comparing remimazolam and propofol for general anesthesia in elderly patients. We synthesized data from eligible studies using relative risk or mean difference, and analyzed differences in hemodynamic stability and adverse effects between the two drugs. Data extraction and quality assessment were performed independently by two researchers.ResultsEight randomized controlled trials involving 571 participants were included. Compared to propofol, remimazolam was associated with a lower incidence of hypotension (RR = 0.51, 95% CI: [0.33, 0.81], I2 = 18%, p = 0.3 > 0.1) and bradycardia (RR = 0.56, 95% CI: [0.31, 1.02], Z = 1.88, p = 0.06 < 0.05). The mean arterial pressure after induction was higher in the remimazolam group (WMD = 3.95, 95% CI: [3.197, 9.498], Z = 3.95, p < 0.00001). The remimazolam group had a higher heart rate (HR) after induction compared to the propofol group (WMD = 7.89, 95% CI: [−2.39, 18.17], Z = 1.5, p = 0.13 > 0.05), but this result was not statistically significant. Among other secondary outcomes, the remimazolam group had lower incidences of injection site pain, nausea and vomiting, and hypoxemia compared to the propofol group, and also had a shorter extubation time.ConclusionIn this meta-analysis, compared to propofol, remimazolam reduced the incidence of hypotension, bradycardia, and injection site pain during general anesthesia in elderly patients. The mean arterial pressure (MAP) and heart rate (HR) were more stable after induction. Remimazolam may be a safer sedative for elderly patients.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42024516950, CRD42024516950.https://www.frontiersin.org/articles/10.3389/fmed.2025.1409495/fullremimazolamelderly patientsgeneral anesthesiameta-analysispropofol
spellingShingle Xianchun Liu
Longyi Zhang
Li Zhao
Xuelei Zhou
Wei Mao
Linlin Chen
Hongyu Zhu
Ying Xie
Linji Li
Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
Frontiers in Medicine
remimazolam
elderly patients
general anesthesia
meta-analysis
propofol
title Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
title_full Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
title_fullStr Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
title_full_unstemmed Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
title_short Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis
title_sort comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients systematic review and meta analysis
topic remimazolam
elderly patients
general anesthesia
meta-analysis
propofol
url https://www.frontiersin.org/articles/10.3389/fmed.2025.1409495/full
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