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Updated: Jun 11, 2026
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Single Port Donor Nephrectomy
Published on: March 12, 2011
En-Bloc Kidney Procurement Significantly Reduces Organ Extraction Time
Felix Boll1, Elke Stoschek1, Anna L Herzog2
1Department of General, Visceral, Transplantation, Vascular, and Pediatric Surgery, University Hospital Würzburg, Würzburg, Germany.
Transplantation Proceedings
|June 9, 2026
Summary
En-bloc kidney procurement significantly reduces organ extraction time in donations after brain death (DBD). This surgical technique minimizes ischemic damage by shortening the period kidneys are without adequate cooling during retrieval.
Area of Science:
- Transplantation Surgery
- Organ Procurement
- Nephrology
Background:
- Kidney procurement involves complex surgical techniques, including en-bloc and sequential nephrectomy.
- During organ extraction, kidneys are detached from blood supply, risking ischemic damage despite cold perfusion.
- Minimizing warm and cold ischemic times is crucial for successful kidney transplantation.
Purpose of the Study:
- To evaluate the impact of en-bloc versus sequential nephrectomy on kidney extraction time.
- To determine if en-bloc procurement reduces the risk of ischemic injury in donations after brain death (DBD).
Main Methods:
- Retrospective analysis of 242 kidney procurements in Germany (Jan 2017 - Dec 2023).
- Comparison of extraction times between en-bloc and sequential nephrectomy techniques in DBD donors.
- Multivariate linear regression analysis to confirm findings.
Main Results:
- En-bloc kidney procurement resulted in significantly shorter extraction times (median 44 min) compared to sequential nephrectomy (median 60 min).
- The en-bloc technique was associated with an approximate 14-minute reduction in extraction time.
- Statistical analysis confirmed the significance of this time reduction (p < .001).
Conclusions:
- En-bloc kidney procurement is a more efficient surgical technique for DBD organ retrieval.
- Shortened extraction times with en-bloc procurement may mitigate ischemic damage, potentially improving organ quality.
- This technique offers a valuable optimization for kidney procurement protocols.
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