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Actas Urológicas Españolas

versão impressa ISSN 0210-4806

Resumo

RODRIGUEZ FABA, Óscar et al. Laparoscopic renal cryotherapy: preliminary experience. Actas Urol Esp [online]. 2009, vol.33, n.9, pp.982-987. ISSN 0210-4806.

Objective: Renal cryotherapy has been described as a minimally invasive procedure that represents an alternative for selected patients with small renal tumors. Our preliminary experience with this procedure is reported. Material y methods: Eighteen patients with 21 tumors with a mean tumor size of 2.2 cm (1-4) in the preoperative CT scan underwent renal cryotherapy using a double freeze-thaw cycle. The group consisted of 14 males (64%) and 4 females (18% with a mean age of 68 years (32-84). All patients had undergone prior surgery for renal tumor in the treated or the opposite kidney. A transperitoneal laparoscopic approach was used in all patients. Results: Mean operating time was 196 minutes (120-140), and no patient received transfusions during or after surgery. No complications occurred in 14 patients (64%). Perirenal abscess, splenic laceration, ureteral lesion, and polar artery lesion occurred in one patient each. Peroperative biopsy was performed in 5 patients (22.7%) and was positive for renal cancer in two cases, while material was insufficient in three patients. Mean hospital stay was 6 days (2-16). Creatinine levels were 106 mg% (48-230) before surgery and 123 mg/% (52-270) 6 months after surgery. A CT scan was performed in all patients one and six months after surgery, showing a residual enhancement area in two of them. Sixteen patients (88.8%) are disease-free after a mean follow-up time of 46 months (6-116). Metastatic disease occurred in two patients (11%) in the setting of a prior renal tumor in the same or the opposite kidney and required treatmet with antiangiogenic agents. Conclusions: This is the largest series reporting renal cryosurgery in Spain, in complex cases and with adequate follow-up. Results are encouraging and allow for considering renal cryotherapy among the minimally invasive procedures for nephron-sparing surgery.

Palavras-chave : Laparoscopy; Cryotherapy; Renal tumor.

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