Garreau et al. 2021

Population Pharmacokinetics and Dosing Simulation of Vancomycin Administered by Continuous Injection in Critically Ill Patient

Antibiotics · 10.3390/antibiotics10101228

Structure

A two-compartment model, driven by ideal body weight and creatinine clearance.

Study population

Critically ill patients — France and Europe. Fitted to 78 patients and 335 concentration observations.

Covariate As reported
Age 68.9 ± 12.3 yr
Weight 77.9 ± 20.4 kg
BMI 27.6 ± 7.7 kg/m²
CrCl 50.4 ± 29 mL/min
SCr 1.58 ± 0.86 mg/dL

Reported as the source publication gives them — mean ± SD, or median with range or interquartile range.

Equations

The model's structural parameters as Chorus implements them.

CL=0.79e(CrCl41.4)0.5CL = 0.79 \cdot e^{\left(\frac{CrCl}{41.4}\right)^{0.5}}V1=27.3e(IBW64.1)1.88V_1 = 27.3 \cdot e^{\left(\frac{IBW}{64.1}\right)^{1.88}}V2=61.3V_2 = 61.3Q=6.08Q = 6.08
LaTeX source
CL = 0.79 \cdot e^{\left(\frac{CrCl}{41.4}\right)^{0.5}}
V_1 = 27.3 \cdot e^{\left(\frac{IBW}{64.1}\right)^{1.88}}
V_2 = 61.3
Q = 6.08

Implementation notes

Continuous infusion model for ICU patients. CRRT patients and specific dosage recommendations excluded from this implementation.

Simulation settings

Models

selected

Dose candidates (mg)

Interval candidates (h)

Demographics

Physical characteristics.

kg
cm
yr