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The Effect of Sex on the Remimazolam Dosage Required for Successful i-gel Supraglottic Airway Insertion with Remifentanil in Non-Paralyzed Patients: An Up-and-Down Sequential Allocation Trial

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dc.contributor.authorOh, JY-
dc.contributor.authorPark, SY-
dc.contributor.authorMoon, JY-
dc.contributor.authorPark, JH-
dc.contributor.authorJoe, HB-
dc.date.accessioned2024-03-14T04:52:39Z-
dc.date.available2024-03-14T04:52:39Z-
dc.date.issued2024-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/32352-
dc.description.abstract(1) Background: The physiological and pharmacological variations between men and women are known to influence drug efficacy. The objective of this study was to determine the 50% and 95% effective doses (ED50 and ED95) of remimazolam required for i-gel supraglottic airway (ISA) insertion under remifentanil infusion without neuromuscular blocking agents (NMBAs) in both males and females. (2) Methods: Patients aged 19–65 years, scheduled for general anesthesia using ISA, were enrolled in this study. Patients were divided into two groups based on their sex. The anesthesia process began with a remifentanil infusion targeting an effect-site concentration of 3.0 ng/mL, accompanied by a remimazolam injection. The initial remimazolam dose was 0.25 mg/kg, and it was adjusted with a step size of 0.05 mg/kg based on the outcome of ISA insertion in the preceding patient. (3) Results: The ED50 of remimazolam (mean ± standard error) was 0.28 ± 0.02 mg/kg in the male group and 0.18 ± 0.02 mg/kg in the female group (p < 0.001). Additionally, ED95, which was calculated using the isotonic regression method, was significantly comparable between the male and female groups (male: 0.35 mg/kg, 95% confidence interval [CI] = 0.34–0.35; female: 0.29 mg/kg, 95% CI = 0.25–0.30). (4) Conclusions: This study showed that both the ED50 and the ED95 of remimazolam for successful ISA insertion was higher for men than that for women. Therefore, while using remimazolam alongside remifentanil infusion without NMBAs for ISA insertion, one should consider the patient’s sex for appropriate dosing.-
dc.language.isoen-
dc.titleThe Effect of Sex on the Remimazolam Dosage Required for Successful i-gel Supraglottic Airway Insertion with Remifentanil in Non-Paralyzed Patients: An Up-and-Down Sequential Allocation Trial-
dc.typeArticle-
dc.identifier.pmid38337364-
dc.identifier.urlhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10856389-
dc.subject.keywordairway management-
dc.subject.keywordgeneral anesthesia-
dc.subject.keywordremifentanil-
dc.subject.keywordremimazolam-
dc.subject.keywordsex-
dc.subject.keywordsupraglottic airway-
dc.contributor.affiliatedAuthorOh, JY-
dc.contributor.affiliatedAuthorPark, SY-
dc.contributor.affiliatedAuthorJoe, HB-
dc.type.localJournal Papers-
dc.identifier.doi10.3390/jcm13030670-
dc.citation.titleJournal of clinical medicine-
dc.citation.volume13-
dc.citation.number3-
dc.citation.date2024-
dc.citation.startPage670-
dc.citation.endPage670-
dc.identifier.bibliographicCitationJournal of clinical medicine, 13(3). : 670-670, 2024-
dc.identifier.eissn2077-0383-
dc.relation.journalidJ020770383-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Anesthesiology & Pain Medicine
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