Nephrol Dial Transplant. 2008; published online ahead of print

A decrease in systolic BP independently predicts development of nosocomial acute kidney injury (AKI), investigators found. The risk for AKI increases approximately 1% with each 1 mm Hg decrease in systolic BP.

The findings are based on a study comparing two groups of hospitalized patients: one with AKI and the other without.

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Researchers looked at BP values over a three-day period before development of AKI and during a similar three-day period for controls.