Journal
EUROPEAN UROLOGY
Volume 47, Issue 4, Pages 474-479Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.eururo.2004.12.024
Keywords
renal tumor; nephron-sparing surgery; laparoscopy; retroperitoneoscopy; cryotherapy
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Objectives: Laparoscopic cryoablation has recently been proposed as a minimally invasive nephron-sparing treatment for selected patients. We report on our experience with a retroperitoneoscopic technique using multiple ultrathin cryoprobes. Methods: Seven patients underwent retroperitoneoscopic renal cryoablation for solid renal masses. Mean tumor size on the CT scan was 2.6 (1.5-3.5) cm. A double freeze-thaw cycle of renal cryoablation was performed under real-time ultrasound monitoring using a total of six 1.5-mm cryoprobes simultaneously. Results: Cryoablation was technically successful in all patients without any need for conversion. Mean duration of surgery was 161 (130-195) minutes and mean blood loss was 107 (50-250) ml. Perioperative biopsy of the tumor confirmed renal cell carcinoma in four patients and angiomyolipoma in two patients; it was inconclusive in one case. Mean follow-up for 13.6 (4-22) months showed no evidence of residual tumor or recurrence. Conclusions: Retroperitoneoscopy-assisted cryosurgical ablation using multiple ultrathin 1.5-mm cryoprobes is a minimally invasive treatment that is suitable to treat small renal tumors. (c) 2005 Elsevier B.V. All rights reserved.
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