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Study of Pharmacokinetics of Cefoperazone-Sulbactam in patients with ICU sepsis |
YI Lingao CHEN Xiaohai HE Guoxin CHEN Jie LIN Jie |
Department of Pharmacy, Ruian People′s Hospital, Zhejiang Province, Ruian 325200, China |
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Abstract Objective To investigate the pharmacokinetics of Cefoperazone/Sulbactam in intensive care unit patients with sepsis. Methods The patients with sepsis in intensive care unit of Ruian people′s Hospital of Zhejiang Province from January to September 2017 who was administered 2.0 g Cefoperazone/Sulbactam for the first time were inrolled. Serial serum samples were collected before the first antibiotic dose and at 0, 0.25, 0.5, 1, 2, 3, 4, 6, 8 h after Cefoperazone/Sulbactam was administered. Then the serum was separated and the concentration was determined by HPLC. Results Cefoperazone: half-life (t1/2): (1.575±0.325) h, clearance rate(CL): (0.095±0.023) L/(h·kg), apparent volume of distribution (Vd): (0.215±0.037) L/kg, peak concentration (Cmax): (83.633±19.324) mg/L, area under the curve AUC (0→∞): (190.213± 42.625) h·mg/L; Sulbactam: t1/2: (1.049±0.263) h, CL: (0.281±0.065) L/(h·kg), Vd: (0.424±0.103) L/kg, Cmax: (42.526±11.210) mg/L, AUC(0→∞): (64.394±15.435) h·mg/L. Conclusion The apparent volume of distribution of Cefoperazone in intensive care unit patients with sepsis is slightly larger than that reported in the literature, the peak concentration is slightly lower, and the half-life is shorter, while the change of Sulbactam is relatively small. Therefore, the dosage of Cefoperazone should be improved and the dosing interval should be shortened in those patients.
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