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Laparoscopic renal cryosurgery: the Northwestern experience.
Robert B Nadler1, Samuel C Kim, Jonathan N Rubenstein
1Department of Urology, Northwestern University Medical School, Chicago, Illinois 60611, USA.
The Journal of Urology
|September 23, 2003
Summary
Laparoscopic renal cryosurgery offers a safe, minimally invasive option for small kidney tumors. Careful patient selection and iceball monitoring are key to successful treatment outcomes.
Area of Science:
- Minimally Invasive Surgery
- Urologic Oncology
- Nephrology
Background:
- Small renal masses often present diagnostic challenges.
- Minimally invasive techniques are preferred for treating renal lesions.
- Laparoscopic renal cryosurgery is an emerging alternative.
Purpose of the Study:
- To evaluate the safety and efficacy of laparoscopic renal cryosurgery.
- To report outcomes in patients with small renal lesions of undefined malignant potential.
Main Methods:
- Fifteen patients underwent laparoscopic cryoablation for renal lesions.
- Transperitoneal or retroperitoneal approaches were utilized.
- A double freeze-thaw cycle with ultrasound guidance was performed.
Main Results:
- Successful cryosurgery in all 15 patients; 10 had renal cell carcinoma.
- Mean tumor size 2.15 cm, mean blood loss 67 cc.
- One treatment failure in a 3.2 cm tumor; one positive biopsy outside the treated area.
Conclusions:
- Laparoscopic renal cryosurgery is a safe and effective minimally invasive treatment for small renal masses.
- Patient selection (lesions < 3.0 cm) and precise iceball monitoring are crucial for success.