Objectives: Renal cell carcinoma (RCC) is most often treated using radical nephrectomy. However, in patients with only one kidney or with bilateral RCC, nephron-sparing surgery (NSS) is mandatory. NSS may also be undertaken in patients with a normal contralateral kidney, providing that the tumour is fairly small and not unfavourably located. The aim of the present study was to determine the long-term results in patients treated with NSS for RCC.
Material And Methods: We reviewed the records of 87 patients with RCC subjected to NSS between 1980 and 1999. The survival rate was determined, as well as the tumour grade (Skinner classification) and stage (1992 World Health Organisation classification).
Results: Cancer-specific survival, in patients with no demonstrable distant metastases and regardless of stage and grade, was 80% and 75% at 5 and 10 years, respectively. Long-term survival was significantly dependent on tumour stage and grade.
Conclusion: In this patient series, long-term survival did not differ from the results obtained using radical nephrectomy, judging from the available literature. An exception was found in patients with high-stage RCC, where NSS appeared to be a less favourable procedure. We therefore recommend that NSS should be performed in cases with bilateral tumour disease or an absent/malfunctioning contralateral kidney. NSS may also be considered in cases of low-stage RCC with a normal contralateral kidney, especially in patients with local or systemic conditions that may adversely affect renal function in the future.
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