Does urinalysis predict acute renal failure after heart surgery?
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Updated: Aug 21, 2026

A Mouse Model to Evaluate the Long-Term Structural and Functional Outcomes after the Reversal of Prolonged Unilateral Ureteric Obstruction
Published on: July 18, 2025
Marcia Cristina da Silva Magro1, Maria de Fatima Fernandes Vattimo
1School of Nursing, University of Sao Paulo, Sao Paulo, Brazil. ppmmagro@uol.com.br
Abstract:
Acute renal failure (ARF) usually develops in 5% to 30% of patients undergoing heart surgery and is associated with a more complicated clinical evolution course and with an excessive mortality of up to 80%. The objective of this study was to verify the frequency of ARF in postoperative coronary artery bypass surgery with and without cardiopulmonary bypass, by the evaluation of renal function markers' performance [plasma creatinine, plasma urea, urinalysis, fractional excretion of sodium, creatinine clearance and Alpha-glutathione S-transferase (alpha-GST)], besides to verify possible relations between clinical variables involved in postoperative heart surgery and the occurrence of renal insufficiency.
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