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Intraoperative Mannitol Not Essential During Partial Nephrectomy.

Caleb A Cooper1, Cheuk Fan Shum1, Clinton D Bahler1

  • 1Department of Urology, Indiana University School of Medicine , Indianapolis, Indiana.

Journal of Endourology
|December 9, 2017
PubMed
Summary
This summary is machine-generated.

Intraoperative mannitol did not show renoprotective effects in partial nephrectomy (PN) patients. Postoperative kidney function (eGFR) was similar with or without mannitol, suggesting it is not essential for renoprotection.

Keywords:
mannitolpartial nephrectomyrenal cancerrenal function

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Area of Science:

  • Nephrology
  • Urology
  • Surgical Oncology

Background:

  • Intraoperative mannitol is commonly used to protect kidney function during partial nephrectomy (PN).
  • Evidence supporting mannitol's renoprotective efficacy in PN is limited.
  • This study investigates the actual benefits of mannitol in PN procedures.

Purpose of the Study:

  • To evaluate the renoprotective effect of intraoperative mannitol administration in patients undergoing partial nephrectomy (PN).
  • To determine if mannitol use influences 6-month postoperative estimated glomerular filtration rate (eGFR).

Main Methods:

  • Retrospective analysis of 476 patients undergoing PN between 2006 and 2016.
  • Comparison of 6-month postoperative eGFR between patients who received mannitol and those who did not.
  • Multivariate linear regression to identify predictors of postoperative renal function, adjusting for relevant covariates.

Main Results:

  • No significant difference in 6-month eGFR was observed between patients who received mannitol and those who did not (70.6 vs. 68.0 mL/minute/1.73 m²).
  • Mannitol dose and intraoperative factors like renal cooling or surgical approach did not significantly impact 6-month eGFR.
  • Age and preoperative eGFR were significant predictors of postoperative renal function.

Conclusions:

  • Intraoperative mannitol does not appear to provide significant renoprotection in partial nephrectomy.
  • Surgical approach and renal cooling strategies did not demonstrate a significant impact on postoperative renal function in this cohort.
  • Further research may be needed to clarify the role of perioperative interventions in preserving renal function during PN.