Preliminary Prospective Study to Assess the Effect of Early Blood Urea Nitrogen/Creatinine Ratio-Based Hydration Therapy on Poststroke Infection Rate and Length of Stay in Acute Ischemic Stroke.
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BACKGROUND
This study aimed to determine whether blood urea nitrogen (BUN)/creatinine (Cr)-based hydration therapy can decrease the rate of poststroke infection and length of stay (LOS) in the neurology ward.
METHODS
This was a nonblinded, phase II single-arm prospective study with a historical control group of patients with acute ischemic stroke and a BUN/Cr ratio of 15 or higher. The study group (n = 134) received an intravenous saline bolus (300-500 mL) followed by maintenance saline (40-80 mL/hour) for the first 72 hours. The control group (n = 103) received maintenance saline infusions (40-60 mL/hour for the first 24 hours and 0-60 mL/hour for the next 24-72 hours).
RESULTS
The hydration group had a significantly lower poststroke infection rate than did the control group (7.5% versus 17.5%, P = .018) and significantly shorter LOS in the neurology ward (13.5 ± 11.6 versus 19.6 ± 14.6 days, P < .01). With regard to adverse events, two patients in each group had cerebral edema.
CONCLUSIONS
The findings suggest that the BUN/Cr ratio needs to be corrected in a timely manner in patients with acute ischemic stroke. Providing prompt saline hydration therapy based on the daily BUN/Cr ratio might decrease the poststroke infection rate and shorten LOS.
