Read by QxMD icon Read

Incidence and predictors of vancomycin-associated nephrotoxicity

Hamzah Moh'd, Fayez Kheir, Lan Kong, Ping Du, Hosam Farag, Ahmad Mohamad, John J Zurlo
Southern Medical Journal 2014, 107 (6): 383-8

OBJECTIVES: Earlier studies reported a low incidence of vancomycin-associated nephrotoxicity (VAN); however, recent studies have reported higher incidences exceeding 30%. Predictors of nephrotoxicity are not well defined. In this study we aimed to better estimate the incidence and evaluate predictors of VAN in a cohort of patients predominated by long treatment courses.

METHODS: We conducted a retrospective study on patients treated with vancomycin while in the hospital and who were observed closely through the Outpatient Parenteral Antibiotic Therapy program. Nephrotoxicity was defined as an increase in the serum creatinine level of 0.5 mg/dL or 50% from baseline on at least two consecutive readings while taking vancomycin. We compared the patients who developed nephrotoxicity with those who did not with regard to vancomycin dosing, trough levels, baseline serum creatinine, underlying infection, residence in the critical care unit, comorbid conditions, concurrent nephrotoxic treatments, and baseline characteristics.

RESULTS: Of 579 patients, 154 (26.6%) developed nephrotoxicity. Ninety patients developed VAN within the first 14 days of treatment, whereas 64 patients developed nephrotoxicity after 14 days of treatment. The median time to development of nephrotoxicity was 9 days. Admission to the intensive care unit, concurrent use of loop diuretics, and comorbidity with cirrhosis were independently associated with nephrotoxicity. A higher baseline creatinine value was unexpectedly associated with a lower incidence of nephrotoxicity (P = 0.0016).

CONCLUSIONS: VAN is not an uncommon outcome in both short- and long-term treatment courses. Admission to the intensive care unit while receiving treatment, concurrent treatment with a loop diuretic, an underlying diagnosis of cirrhosis, and the initial trough level appear to be the main risk factors for nephrotoxicity. Unexpectedly, elevated baseline creatinine levels appeared to be protective and this could be the result of careful use of vancomycin among individuals with relatively higher baseline creatinine values.


You need to log in or sign up for an account to be able to comment.

No comments yet, be the first to post one!

Related Papers

Available on the App Store

Available on the Play Store
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"