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Assessing the impact of ischaemia time during partial nephrectomy
Frank Becker1, Hein Van Poppel, Oliver W Hakenberg
1Department of Urology, University of Saarland, Kirrbergerstrasse, Homburg/Saar, Germany. frank.becker@uks.eu
European Urology
|August 7, 2009
Summary
To minimize kidney damage during nephron-sparing surgery, limit warm ischemia to 20 minutes and cold ischemia to 2 hours. Careful planning is crucial for preserving renal function post-surgery.
Area of Science:
- Nephrology
- Urologic Surgery
- Renal Physiology
Background:
- Renal ischemia is a critical factor in nephron-sparing surgery, impacting kidney function.
- Understanding ischemia limits is vital for minimizing renal damage during partial nephrectomy.
Purpose of the Study:
- To define safe limits for warm and cold renal ischemia times in nephron-sparing surgery.
- To review current research on renal ischemia and its effects on kidney function after partial nephrectomy.
Main Methods:
- Comprehensive Medline literature search using keywords: nephron-sparing surgery, partial nephrectomy, and ischemia.
- Inclusion of relevant articles, reviews, textbook information, and expert peer review.
- Systematic review of clinical studies and research findings on renal ischemia.
Main Results:
- Renal damage increases proportionally with ischemia duration.
- Safe ischemia times: up to 20 minutes for warm ischemia, up to 2 hours for cold ischemia.
- Higher risk of comorbidities from renal damage in kidney tumor patients.
Conclusions:
- Limit warm ischemia to 20 minutes during tumor removal in nephron-sparing surgery.
- Utilize cold ischemia promptly if warm ischemia limits are challenged; up to 2 hours is generally tolerated.
- Prioritize preoperative planning to optimize renal function outcomes and avoid renal function loss.
