European journal of clinical pharmacology · 2024
Preventive effects of first-generation antihistamine on emergence agitation or delirium: a systematic review.
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Kotake Kazumasa, Matsunuma Satoru, Kitamura Naoya, Noritake Yumi, Kawakami Yasuhiro
Аннотация
PURPOSE: The effects of first-generation antihistamines in preventing postoperative emergence agitation or delirium are unclear. Determining the postoperative effects of first-generation antihistamines may provide important insights into the management of patient safety. Therefore, we performed a systematic review of randomized controlled trials (RCTs) evaluating the efficacy and safety of postoperative first-generation antihistamines.
METHODS: Patients who used first-generation antihistamines in the intensive care unit or operating room were included. Primary outcomes were assessed postoperative emergence agitation or delirium with binary and continuous variables. The secondary outcome was any adverse event.
RESULTS: Nine studies were included. The frequency of postoperative emergence agitation, measured using binary variables, tended to be lower in patients receiving chlorpheniramine or diphenhydramine than those receiving saline. However, evaluation using the Richmond Agitation-Sedation Scale as a continuous variable revealed that only chlorpheniramine was effective at lowering postoperative emergence agitation. Only one study assessed delirium but found no benefit of first-generation antihistamines. Adverse events for first-generation antihistamines did not differ from that of other drugs.
CONCLUSION: Our results provide limited evidence that some first-generation antihistamines may prevent postoperative emergence agitation and are safe. To further verify this possibility, new RCTs with clear and universal assessment criteria for postoperative emergence agitation or delirium should be conducted.
METHODS: Patients who used first-generation antihistamines in the intensive care unit or operating room were included. Primary outcomes were assessed postoperative emergence agitation or delirium with binary and continuous variables. The secondary outcome was any adverse event.
RESULTS: Nine studies were included. The frequency of postoperative emergence agitation, measured using binary variables, tended to be lower in patients receiving chlorpheniramine or diphenhydramine than those receiving saline. However, evaluation using the Richmond Agitation-Sedation Scale as a continuous variable revealed that only chlorpheniramine was effective at lowering postoperative emergence agitation. Only one study assessed delirium but found no benefit of first-generation antihistamines. Adverse events for first-generation antihistamines did not differ from that of other drugs.
CONCLUSION: Our results provide limited evidence that some first-generation antihistamines may prevent postoperative emergence agitation and are safe. To further verify this possibility, new RCTs with clear and universal assessment criteria for postoperative emergence agitation or delirium should be conducted.