Tianjin Medical Journal ›› 2022, Vol. 50 ›› Issue (11): 1213-1216.doi: 10.11958/20212847

• Drug Clinical Evaluations • Previous Articles     Next Articles

Dose-response study of sugammadex sodium on reversing neuromuscular block of rocuronium in patients with abnormal liver function

FAN Fangfei(), DENG Li()   

  1. Department of Anesthesiology, the Affiliated Hospital of Qinghai University, Xining 810001, China
  • Received:2021-12-26 Revised:2022-06-10 Published:2022-11-15 Online:2022-11-11
  • Contact: DENG Li E-mail:fanfeifei198501@163.com;541251777@qq.com

Abstract:

Objective To investigate the dose-effect relationship of sugammadex sodium on reversing neuromuscular block of rocuronium in patients with liver dysfunction. Methods Eighty patients who underwent elective partial hepatectomy were selected. According to the Child-Pugh classification, patients were divided into the experimental group (Child-Pugh class A) and the control group (normal liver function), with 40 cases in each group. Sugammadex sodium was intravenously injected immediately after the operation at the time of 1-2 times of single-stimulated muscle twitch count (PTC) after tonic stimulation. Dixon sequential method was used to adjust the dosage of sugammadex sodium in both groups, and the first patient was intravenously injected with the initial dose of sugammadex sodium 4 mg/kg, with a dose gradient of 0.5 mg/kg. The ED95 of sugammadex sodium was calculated. Results The intraoperative dose of rocuronium bromide was significantly lower in the experimental group than that in the control group (P<0.05). The maximum dosage of sugammadex sodium was 5.5 mg/kg in the experimental group, and the maximum dosage of sugammadex was 4.5 mg/kg in the control group. The Probit model formula of the control group was Probit(P)=-10.891+3.009×dose, and the Probit model formula of the experimental group was Probit(P)=-8.095+1.864×dose. The ED95 of sugammadex sodium for reversing rocuronium bromide neuromuscular block was 4.167 mg/kg in patients of the control group (95%CI: 3.824-4.509 mg/kg). The ED95 of sugammadex sodium for reversing neuromuscular blockade in patients of the experimental group was 5.224 mg/kg (95%CI: 4.577-5.872 mg/kg). Conclusion Compared with patients with normal liver function, patients with abnormal liver function require a larger dose of sugammadex to reverse the neuromuscular blockade of rocuronium bromide, with an ED95 of 5.224 mg/kg.

Key words: hepatic insufficiency, sugammadex sodium, rocuronium, 95% effective dose

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