BMC anesthesiology · 2026
Circulating leptin level associates with emergence time from general anesthesia in obese patients: a prospective study.
СтатьяНазвание и аннотация: Перевод в очереди
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Liu Xin, Pei Tongtong, Wang Ranxi, Shi Jierui, Tian Yanjing, Wei Haidong, Zhang Pengbo
Аннотация
BACKGROUND: General anesthesia administration in obese patients presents significant challenges. In addition to the complexity of dosage and parameter management, delayed recovery from anesthesia substantially increases the risk of postoperative complications. Thus, promoting rapid recovery in this population is crucial. However, factors associated with delayed recovery in obese patients remain poorly understood. Given the influence of metabolism on brain activity and connectivity, this exploratory study aimed to identify metabolic factors associated with delayed recovery in obese individuals.
METHODS: This study included 102 obese patients undergoing minor or moderate surgery under total intravenous anesthesia, with depth of anesthesia guided by the bispectral index. Peripheral circulating levels of leptin, orexin A, adiponectin, and lipid profiles were measured. Emergence time was defined as the duration from discontinuation of anesthetics to eye opening on command.
RESULTS: The median emergence time was 8 min (IQR 6-12). Univariate analysis indicated that patient height, sex, and leptin concentration were correlated with emergence time. Multivariate analysis revealed that circulating leptin was an independent factor associated with emergence time (β = -0.91, 95% CI: -1.42 to - 0.39, adjusted R² of 0.18).
CONCLUSIONS: Circulating leptin level is associated with emergence time from general anesthesia in obese patients. However, it explains only a limited portion of the variability in emergence time given the low R2. The findings support an association rather than a ready‑to‑use predictive marker, and external validation is required before any clinical translation.
METHODS: This study included 102 obese patients undergoing minor or moderate surgery under total intravenous anesthesia, with depth of anesthesia guided by the bispectral index. Peripheral circulating levels of leptin, orexin A, adiponectin, and lipid profiles were measured. Emergence time was defined as the duration from discontinuation of anesthetics to eye opening on command.
RESULTS: The median emergence time was 8 min (IQR 6-12). Univariate analysis indicated that patient height, sex, and leptin concentration were correlated with emergence time. Multivariate analysis revealed that circulating leptin was an independent factor associated with emergence time (β = -0.91, 95% CI: -1.42 to - 0.39, adjusted R² of 0.18).
CONCLUSIONS: Circulating leptin level is associated with emergence time from general anesthesia in obese patients. However, it explains only a limited portion of the variability in emergence time given the low R2. The findings support an association rather than a ready‑to‑use predictive marker, and external validation is required before any clinical translation.