Evidence map›Paper›PMID 41857716›Full record

ArticleBMC anesthesiology2026

Predictors and nomogram of midazolam-induced somnolence: a retrospective cohort study.

Yueling Huang, Nijie Wu, Daihua Liu

Abstract readValidation Study
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Article in BMC anesthesiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Yueling HuangLiuzhou People's Hospital affiliated to Guangxi Medical University, Liuzhou, Guangxi, 545006, China.
Nijie WuLiuzhou People's Hospital affiliated to Guangxi Medical University, Liuzhou, Guangxi, 545006, China.
Daihua LiuLiuzhou People's Hospital affiliated to Guangxi Medical University, Liuzhou, Guangxi, 545006, China. 38353828@qq.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to develop and validate a nomogram for predicting the risk of prolonged somnolence in hospitalized patients receiving intravenous midazolam.

methodsWe retrospectively collected clinical data from hospitalized patients at Liuzhou People’s Hospital who were treated with intravenous midazolam and and required flumazenil for sedation reversal between July 2020 and December 2021. These patients were randomly divided in a specific ratio (7:3) into a training cohort (n = 710) and an internal validation cohort (n = 303). Univariate analysis was performed in the training cohort to screen for relevant factors associated with prolonged somnolence. Subsequently, least absolute shrinkage and selection operator (LASSO) regression and multivariable logistic regression were employed to identify independent risk factors for prolonged somnolence, based on which a predictive nomogram model was constructed. The receiver operating characteristic (ROC) curve, calibration curve, and Hosmer-Lemeshow (H-L) test were employed to assess the discrimination and calibration of the model. Decision curve analysis (DCA) was performed to evaluate the clinical utility of the model.

resultsA total of 1,013 patients were included. Multivariate logistic regression analysis revealed that serum albumin (ALB) < 35 g/L (OR = 1.73, 95%CI 1.20–2.50, P < 0.01), male sex (OR = 1.41, 95%CI 1.04–1.91, P = 0.026), and alanine aminotransferase (ALT) > 160 U/L (OR = 3.16, 95%CI 1.11–11.37, P = 0.046) were independent risk factors for midazolam-induced somnolence in patients receiving intravenous midazolam. A nomogram was developed and validated using the three independent risk factors identified above. The model demonstrated an acceptable discrimination, with an area under the ROC curve of 0.603 in the training cohort and 0.615 in the internal validation cohort. The calibration curve and H-L test both demonstrated good consistency of the model, with the training cohort showing χ²=0.0028 and P = 1.00 and the validation cohort showing χ²=0.0054 and P = 0.997. DCA indicated that the model provided net clinical benefit when the threshold probabilities ranged from 3% to 67% for the training cohort and 3% to 85% for the validation cohort.

conclusionTo facilitate the rational administration of midazolam, we developed a nomogram that can help assess the likelihood of prolonged somnolence in patients receiving intravenous midazolam.

Indexed as

Hypnotics and SedativesMidazolamNomogramsSleepinessAgedCohort StudiesFemaleHumansMaleMiddle AgedRetrospective StudiesRisk FactorsROC CurveHypnotics and SedativesMidazolamMidazolamNomogram prediction modelRisk factorsSomnolence

Identifiers

PMID41857716
PMCPMC13127006

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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.