Twenty-nine patients with 52 courses of AGs were included the CP group, and 22 patients with 42 courses were included the UC group. Ninety-eight percent of patients in the CP group reached AG PK/PD targets compared with 71% in the UC group, Pâ<â0.001. Patients in the CP group reached the AG PK/PD target in a mean of 1.9â±â0.8 days compared with 4.8â±â3.4 days in the UC group, Pâ<â0.0001. The average LOS in the CP group was 9â±â5 days compared with 12â±â7.5 days in the UC group, Pâ=â0.033. The mean number of levels per patient was 2.7 in the CP group compared with 5.2 (range of 2-20) in the UC group, Pâ<â0.001. Resource utilization associated with drug levels, dosing adjustments and LOS were $26,549, $14,069, and $1,680,000 in the CP group as compared with $40,683, $27,812, and $1,940,000, respectively, in the UC group.