肥胖与产妇分娩镇痛中局麻药用药量的相关性

目的 探讨产妇肥胖与硬膜外分娩镇痛中局麻药用药量的相关性,为肥胖产妇分娩镇痛提供参考.方法 回顾性分析2018年9月至2019年12月于本院接受硬膜外分娩镇痛产妇,年龄21～35岁,BMI 18.5～40.0 kg/m2,ASAⅠ或Ⅱ级,根据产妇BMI分为非肥胖(18.5～29.9 kg/m2)和肥胖(BMI≥30 k...

Correlation between maternal obesity and local anesthetic consumption in labor analgesia

Objective To explore the correlation between maternal obesity and local anesthetic consumption in epidural labor analgesia,and to provide guidance for epidural labor analgesia for obese parturients.Methods Parturients who aged 21-35 years,ASA physical statusⅠorⅡ,BMI 18.5-40.0 kg/m 2,and received epidural labor analgesia in Jinling Hospital from September 2018 to December 2019 were included in this retrospective analysis.Parturients were stratified into non-obese group(BMI 18.5-29.9 kg/m²)and obese group(BMI≥30 kg/m²)based on BMI.The primary outcome was the consumption of ropivacaine per hour during analgesia.According to the tertiles of the primary outcome,the parturients were divided into three groups:low-dose group(group L),middle-dose group(group M),and high-dose group(group H).The association between maternal obesity and hourly ropivacaine consumption during analgesia was analyzed with an ordinal logistic regression model.Results A total of 292 parturients were included in the final analysis,of which 50 were obese(17.1%).The proportion of obese women in groups L and M was significantly lower than that in group H(P<0.05).Multivariate ordinal logistic regression analysis showed that compared with non-obese parturients,obese parturients had a significantly lower risk of higher hourly ropivacaine consumption(OR=0.445,95%CI 0.220-0.901,P=0.024).Conclusion Maternal obesity was significantly associated with the decrease of hourly ropivacaine consumption during epidural labor analgesia.