腎腫瘍に対する後腹膜腔鏡下無阻血腎部分切除術―開放性手術との比較―

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Between 1996 and 2003, ten patients with small renal tumors underwent retroperitoneoscopic partial nephrectomy without renal ischemia, nine patients with small renal tumors underwent open partial nephrectomy via a retroperitoneal approach. Both groups were operated on using a microwave tissue coagulator. We compared the results of retroperitoneoscopic group with those of a retroperitoneal open surgery group. Retroperitoneoscopic partial nephrectomy without renal ischemia was performed without any major or minor complications in any patient. The mean operation time for retroperitoneoscopic surgery significantly longer than that for open partial nephrectomy. However, the mean estimated blood loss for retroperitoneoscopic surgery was less than that for open partial nephrectomy. In addition, the retroperitoneoscopic group seemed to recover more rapidly than the open surgery group. This endoscopic surgery is feasible as minimally invasive procedure. It results in saving renal function, minimal blood loss and rapid recovery.