RESUMO
Objective To evaluate the methods and efficacy of retroperitoneal laparoscopic nephron-sparing surgery for the treatment of renal tumor. Methods A total of 6 patients with renal tumors underwent retroperitoueal laparoscopie nephron-sparing surgery during warm ischacmia. Among the 6 eases, 2 had malignant tumor with the diameter of 2.5 cm and 2.2 cm,and 4 had renal angiomyolipoma with the diameter from 2.5 cm to 3.5 cm.The renal yes,Is were secured by a self-made equipment. Tumors were excised with a cold Endo-shear. Parenehymal edges were approximated using a absorbable hemostatic gauze. Results All procedures were successfully completed without open conversion. Mean surgical time was 150 minutes (range 120-210 minutes). Mean ischaemia time was 22 minutes (range 18-33 minutes) and the mean blood loss was 170 ml (range 150-200 ml). Surgical margins were negative in all patients.During a follow-up for 6-12 months, no patient had local or port site recurrence. Conclusions Betroperitoneal laparoscopic nephron-sparing surgery for renal tumor by using serf-made equipment is safe and effective. This procedure has the advantages of minimal invasion, less blood loss, good vision, and rapid convalescence and so on.