Multimodal Analgesic Therapy With Gabapentin and Its Association With Postoperative Respiratory Depression.

BACKGROUND: Gabapentinoids are widely used in perioperative multimodal analgesic regimens. The primary aim of this study was to determine whether gabapentin was associated with respiratory depression during phase-I postanesthesia recovery after major laparoscopic procedures. METHODS: We retrospectively reviewed the electronic health records of 8567 patients who underwent major laparoscopic procedures (lasting >=90 minutes) from January 1, 2010, to July 31, 2014. We assessed potential associations among patient and perioperative variables and episodes of respiratory depression during phase-I recovery. Multivariable and propensity score-matched analyses were performed to assess potential associations between preoperative gabapentin use and postoperative respiratory depression. RESULTS: The incidence of respiratory depression was 153 (95% confidence interval [CI], 146-161) episodes per 1000 cases. Multivariable analysis showed that gabapentin was associated with respiratory depression (odds ratio [OR], 1.47 [95% CI, 1.22-1.76]; P

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