腎盂尿管腫瘍の手術成績と再発危険因子の分析

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腎盂尿管腫瘍58例の治療成績を臨床的に検討した.治療は腎盂尿管全摘術+リンパ節郭清術を中心に行い,術後補助化学療法を高stage, 高grade症例に対して行った. 1)手術症例56例の5生率は72.8%であった. 2)膀胱内再発は23.2%であった. 3)予後を改善する為には早期の徹底した手術治療と,再発危険度の高い症例に対する予防的化学療法が有用と考えられたFifty eight cases of primary tumors in the renal pelvis and ureter were treated at Toranomon Hospital between 1983 and 1992. They consisted of 32 renal pelvic tumors, 21 ureteral tumors and 5 tumors at both sites. The age of the patients ranged from 30 to 84 years (mean 63.1). Surgery was performed in 56 cases. Radical nephroureterectomy with concomitant ipsilateral retroperitoneal lymph node dissection was performed in 38 cases. The other surgeries were radical nephroureterectomy without lymph node dissection in 9, nephrectomy in 4, resection of ureter and reanastomosis in 3, radical nephroureterectomy and cystectomy in 1 and partial nephrectomy in 1. Pathologically, 53 were transitional cell carcinoma (TCC), 2 were TCC plus squamous cell carcinoma and 1 was TCC plus adenocarcinoma. Over-all survival rates (Kaplan-Meier) of 56 surgical cases at 1, 3, 5 years were 92.2, 83.7 and 72.8%, respectively. Combination chemotherapy (M-VAC or CAP) was performed in 9 cases of metastatic disease and 1 case of bilateral disease. Of these 10 cases, one achieved complete remission, 2 no change and 7 had progressive disease. Adjuvant chemotherapy was performed in 21 cases after surgery. These 21 patients were of high risk in recurrence either Grade 3 or pT3. However, the 5-year survival rate was 77.3% in these patients. Thus we conclude that the adjuvant chemotherapy in high risk patients was effective in our cases.

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横山正夫
昭和大学泌尿器科

腎盂尿管腫瘍の手術成績と再発危険因子の分析

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