Abstract:
UNLABELLED:Authors from Iowa City report on the incidence of RCC; they compared the rate of these tumours at autopsy and felt that the decrease found was a result of better antemortem detection, and an increase with time in the frequency of clinically detected renal cancer. A study from New York attempted to determine whether size, or transcapsular extension irrespective of size, was more likely to produce an adverse outcome. They analysed their database of 717 such tumours between 1988 and 2002, and found that absolute tumour size was the more significant of the two findings. OBJECTIVE:To determine which factor was more predictive of adverse outcome in our institutional experience with T2N0M0 and T3N0M0 renal cortical tumours (RCTs) treated surgically, as the current Tumour-Node-Metastasis (TNM) staging system for RCTs differentiates between tumours of >7.0 cm but confined to the renal capsule (T2) and tumours that extend through the renal capsule regardless of size (T3a). MATERIALS AND METHODS:We analysed our institutional database of surgical urological oncology for all patients with T2N0M0 and T3aN0M0 RCT treated with partial or radical nephrectomy from 1988 to 2002. All patients with preoperative metastasis, bilateral or multifocal tumours, nonsporadic disease or benign histology were excluded from analysis. A follow-up of > or = 6 months from the time of surgery was required for inclusion. Primary outcomes included local and distant recurrence, and death. RESULTS:In all, 717 patients had a partial or radical nephrectomy for RCT during the study period. After exclusion criteria were applied, 21 patients with T2N0M0 and 97 with T3aN0M0 tumours were eligible; the median (mean, range) age was 63 (16.6-88.3) years and follow-up 30.5 (40.8, 6-162) months. The estimated 5-year disease-free survival was 68% and 85% for T2N0M0 and T3aN0M0 RCT, respectively (P = 0.002). The 5-year disease-specific survival was 81% and 94% for the T2N0M0 and T3aN0M0 groups, respectively (P = 0.085). CONCLUSION:Patients with T3aN0M0 tumours appear to have better disease-free and disease-specific survival than those with T2N0M0 disease, which suggests that tumour invasion through the renal capsule is not as significant as the absolute tumour size.
journal_name
BJU Intjournal_title
BJU internationalauthors
Murphy AM,Gilbert SM,Katz AE,Goluboff ET,Sawczuk IS,Olsson CA,Benson MC,McKiernan JMdoi
10.1111/j.1464-410X.2005.05244.xkeywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
27-30issue
1eissn
1464-4096issn
1464-410Xpii
BJU5244journal_volume
95pub_type
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pub_type: 临床试验,杂志文章,随机对照试验
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