ArticleAntimicrobial agents and chemotherapy2023
Model-Informed Clinical Practice - Determining an Appropriate Ampicillin-Sulbactam Redosing Regimen in Surgical Patients by Utilizing Population Pharmacokinetics and Target Attainment Analysis.
Article in Antimicrobial agents and chemotherapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 8 citations in OpenAlex.
- A Physiologically Based Pharmacokinetic Model for the Prediction of Plasma and Bone Tissue Exposure after Prophylactic Administration of Ampicillin/Sulbactam in Patients with Osteonecrosis of the Jaw.Clinical pharmacokinetics · 2025Article
- The effect of intraoperative excessive bleeding on the pharmacokinetics of ampicillin and sulbactam in recipients of living donor liver transplantation in Japan.JAC-antimicrobial resistance · 2025Article
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7 authors at 3 institutions in 1 country.
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Abstract
In the current study, population pharmacokinetic (PK) of ampicillin-sulbactam was performed based on the clinical pharmacokinetics data collected from a prospective study conducted in 40 surgical patients undergoing prolonged surgery where antibiotic redosing was implemented. A population PK model was successfully developed to characterize the disposition of ampicillin and sulbactam. The final models were two-compartment models for both drugs, with creatinine clearance and heart failure affecting clearance and body surface area having an impact on the central volume of distribution of both ampicillin and sulbactam. Comprehensive Monte Carlo simulations were performed to evaluate the probability of target attainment (PTA) of 24 different redosing scenarios. Simulation results indicated that the ampicillin-sulbactam 2-h redosing scheme recommended by ASHP guidelines is likely too conservative given that 3-g dose (2-g ampicillin/1-g sulbactam) with 4-h redosing interval can reach the breakpoint of 2 mg/L for ampicillin in all populations even with the aggressive pharmacokinetic/pharmacodynamic (PK/PD) target of 100%
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