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J Urol. 2006 Nov;176(5):1990-5; discussion 1995.

The role of nephron sparing surgery for metastatic (pM1) renal cell carcinoma.

Author information

  • 1Department of Urology, Mayo Medical School and Mayo Clinic, Rochester, Minnesota 55905, USA. krambeck.amy@mayo.edu

Abstract

PURPOSE:

Studies have demonstrated increased time to progression when cytoreductive nephrectomy is performed for metastatic renal cell carcinoma. We evaluated the role of nephron sparing surgery in these patients.

MATERIALS AND METHODS:

We selected all patients with pM1 renal cell carcinoma treated with nephron sparing surgery or radical nephrectomy, and all patients with pM0 renal cell carcinoma undergoing nephron sparing surgery for solitary kidney from 1970 to 2002 from the Mayo Clinic Nephrectomy Registry.

RESULTS:

We identified 16 patients who underwent nephron sparing surgery for pM1 renal cell carcinoma. Solitary kidney was present in 12, 3 had bilateral synchronous disease and 1 had elective nephron sparing surgery. Cancer specific survival rates at 1, 3 and 5 years were 81%, 49% and 49%, respectively. We identified 404 patients who underwent radical nephrectomy for pM1 renal cell carcinoma. Cancer specific survival rates at 1, 3 and 5 years were 51%, 21% and 13%, respectively. The pM1 nephron sparing surgery for solitary kidney cases were more likely to have early (33% vs 10%, p = 0.009) or late (50% vs 19%, p = 0.018) complications compared with pM1 radical nephrectomy cases. There were no significant differences in early (p = 0.475) or late (p = 0.350) complications between pM1 nephron sparing surgery cases and 139 pM0 nephron sparing surgery cases.

CONCLUSIONS:

Cancer specific survival rates in pM1 nephron sparing surgery cases were comparable to pM1 radical nephrectomy cases. Although there were differences in early and late complications between the pM1 nephron sparing surgery and pM1 radical nephrectomy groups, there were no differences when compared with imperative pM0 nephron sparing surgery cases. This study demonstrates that nephron sparing surgery can achieve adequate cytoreductive therapy while preserving renal function, with postoperative complication rates similar to those of pM0 nephron sparing surgery cases.

PMID:
17070231
DOI:
10.1016/j.juro.2006.07.015
[PubMed - indexed for MEDLINE]
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