Related Experiment Video
Updated: Apr 28, 2026
Murine Kidney Transplant Technique
Published on: October 20, 2015
Comparison of the loss of renal function after cold ischemia open partial nephrectomy, warm ischemia laparoscopic
Takashi Kawahara1, Ryoko Sakata1, Kimiko Kawahara2
1Department of Urology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Purpose:
Nephron sparing surgery is an effective surgical option in patients with renal cell carcinoma. Laparoscopic partial nephrectomy involves clamping and unclamping techniques of the renal vasculature. This study compared the postoperative renal function of partial nephrectomy using an estimation of the glomerular filtration rate (eGFR) for a Japanese population in 3 procedures; open partial nephrectomy in cold ischemia (OPN), laparoscopic partial nephrectomy in warm ischemia (LPN), and microwave coagulation using laparoscopic partial nephrectomy without ischemia (MLPN).
Materials And Methods:
A total of 57 patients underwent partial nephrectomy in Yokohama City University Hospital from July 2002 to July 2008. 18 of these patients underwent OPN, 17 patients received MLPN, and 22 patients had LPN. The renal function evaluation included eGFR, as recommended by The Japanese Society of Nephrology.
Results:
There was no significant difference between the 3 groups in the reduction of eGFR. eGFR loss in the OPN group was significantly higher in patients that experienced over 20 minutes of ischemia time. eGFR loss in LPN group was significantly higher in patients that experienced over 30 minutes of ischemia time.
Conclusion:
This study showed that all 3 procedures for small renal tumor resection were safe and effective for preserving postoperative renal function.
