Affiliation:
1. William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine University of California Davis California USA
2. Department of Medicine & Epidemiology, School of Veterinary Medicine University of California Davis California USA
Abstract
AbstractBackgroundAmphotericin‐B (AmB) is an essential medication for the treatment of life‐threatening systemic mycoses but the incidence and risk factors for acute kidney injury (AKI) after its administration are not known in dogs.ObjectiveDetermine the incidence of and risk factors for AKI in dogs receiving AmB.AnimalsFifty‐one client owned dogs receiving AmB for the treatment of systemic mycoses.MethodsRetrospective study. Signalment, potential risk factors, AKI development (creatinine ≥0.3 mg/dL from baseline), drug formulation (deoxycholate [AmB‐D] or lipid complex [ABLC]), dose, and treatment duration were recorded. The probability of an AKI diagnosis was evaluated using a log‐rank test. The incidence of AKI and odds ratios were calculated for potential risk factors.ResultsIncidence of AKI was 5/12 (42%) for dogs receiving AmB‐D and 14/39 (36%) for dogs receiving ABLC. Of the 19 dogs that developed AKI, 16 (84%) continued treatment after a pause in the planned dosing protocol. Fifty percent of dogs received a cumulative dose of 6.9 mg/kg for AmB‐D and 22.5 mg/kg for ABLC (P < .01) at time of AKI diagnosis. ICU hospitalization (odds ratio [OR] 0.21, 95% confidence interval [CI]: 0.58‐0.87) and inpatient status (OR 0.25, 95% CI: 0.07‐0.86) were associated with decreased odds of AKI.Conclusions and Clinical ImportanceIncidence of AKI with AmB is common but does not always preclude continued treatment. The incidence of AKI is similar between AmB‐D and ABLC, but dogs receiving ABLC tolerated a higher cumulative total dose before AKI diagnosis.
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