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Laparoscopic partial nephrectomy for renal tumor: duplicating open surgical techniques.
Inderbir S Gill1, Mihir M Desai, Jihad H Kaouk
1Section of Laparoscopic and Minimally Invasive Surgery, Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
The Journal of Urology
|January 17, 2002
Summary
Laparoscopic partial nephrectomy successfully duplicates open oncologic nephron sparing surgery techniques for renal tumors. This minimally invasive approach offers a viable alternative for select patients, achieving oncologic control with good outcomes.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Oncologic Surgery
Background:
- Renal tumors necessitate nephron sparing surgery to preserve renal function.
- Open partial nephrectomy is the established oncologic standard.
- Laparoscopic techniques aim to replicate open surgical outcomes with reduced morbidity.
Purpose of the Study:
- To describe the technique and single institutional experience with purely laparoscopic partial nephrectomy (LPN) for renal tumors.
- To evaluate the feasibility of duplicating established open oncologic nephron sparing surgery techniques laparoscopically.
Main Methods:
- A cohort of 50 patients underwent LPN for renal tumors between August 1999 and the study period.
- The laparoscopic technique involved preoperative ureteral catheterization, renal ultrasonography, transient vascular clamping, tumor excision with a margin, and intracorporeal suturing.
- Special considerations included managing tumors near the pelvicaliceal system and utilizing hypothermia in one case.
Main Results:
- All 50 procedures were completed laparoscopically without open conversion, with a mean operative time of 3.0 hours and mean blood loss of 270.4 cc.
- Mean warm ischemia time was 23 minutes; 36% of cases with caliceal entry had watertight repair without postoperative urine leak.
- Major complications occurred in 6% of patients; 68% had renal cell carcinoma with negative surgical margins, and no recurrence was observed during a mean 7.2-month follow-up.
Conclusions:
- Laparoscopic partial nephrectomy is a viable and effective alternative for select patients with renal tumors.
- This study represents a significant single institutional experience demonstrating successful laparoscopic replication of open nephron sparing surgery principles.
- The technique allows for oncologic control and renal preservation with acceptable complication rates.