前立腺癌に対する前立腺全摘除術の臨床的検討 : 東海腫瘍登録症例の解析
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1)27例の非neoadjuvant治療群で,臨床病期の正診率は48.2%, understagingが44.4%, overstagingが7.4%.42例のneoadjuvant治療群では,臨床病期の正診率は54.8%, understagingが35.7%, downstaging或いはoverstagingが9.5%であった. 2)治療前PA値は,病理病期をよく反映しており,pT0とpT3症例,pT0とpN(+)症例及びpT2とpN(+)症例の間には統計学的な差が認められた.又,再発症例の治療前PA値は,非再発症例より高かったBetween 1989 and 1991, 815 cases of prostatic carcinoma were registered in the Tokai Urological Cancer Registry. We investigated the clinical features and prognosis of 69 patients who underwent radical prostatectomy. The median age and clinical stage, were 65.9 +/- 4.7 years and A in 7 patients, 66.3 +/- 5.8 years and B in 31, 68.2 +/- 2.7 years and C in 26, 63.4 +/- 13.5 years and N(+) in 5. Neoadjuvant therapy consisting of endocrine therapy and chemoendocrine therapy was administered to 28 and 14 patients, respectively. In comparison to the clinical stage, pathologically, 4 cases (9.5%) showed downstaging or overstaging, 15 (35.7%) understaging and 23 (54.8%) accurate staging in the neoadjuvant therapy group, and, respectively, 2 (7.4%), 12 (44.4%) and 13 (48.2%) in the non-neoadjuvant therapy group. There was a significant difference in the pretreatment prostatic antigen (PA) value between pT0 and pT3 (p < 0.05), between pT0 and pN(+) (p < 0.01) and between pT2 and pN(+) (p < 0.05). In addition, the pretreatment PA value in the recurrence group was higher than that in the non-recurrence group in both neoadjuvant and non-neoadjuvant groups, with a significant difference (p < 0.01) in the neoadjuvant group. Cancer recurrence was noticed in 2 patients given non-neoadjuvant therapy and 3 given neoadjuvant therapy. There was no significant difference in the non-recurrence rate with the pathological stage either with or without neoadjuvant therapy. However, the non-recurrence rate in the neoadjuvant therapy group was higher than that in the non-neoadjuvant therapy group.
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