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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Urol 2014 ; 192 (1): 36-42 Nephropedia Template TP
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PARTIAL NEPHRECTOMY IN THE SETTING OF METASTATIC RENAL CELL CARCINOMA #MMPMID24518767
Babaian KN; Merrill MM; Matin S; Tamboli P; Tannir NM; Jonasch E; Wood CG; Karam JA
J Urol 2014[Jul]; 192 (1): 36-42 PMID24518767show ga
Purpose: Cytoreductive nephrectomy (CN) remains the standard of care for appropriately selected patients with metastatic renal cell carcinoma (mRCC). Although the role of partial nephrectomy (PN) is well accepted in patients with localized disease, limited data are available regarding PN in the metastatic setting. We sought to identify the indications and outcomes for PN in the setting of mRCC with particular attention to different PN subgroups. Materials and Methods: We analyzed data from a consecutive cohort of 33 patients with mRCC who underwent PN at a single institution between 1996 and 2011. Non-parametric statistics were used to compare PN subgroups. Overall survival (OS) was estimated using Kaplan-Meier method, and survival functions were compared using the log-rank test. Results: Eight patients presented with bilateral synchronous renal masses; 20 with a metachronous contralateral renal mass; and 5 with a unilateral renal mass. Overall, 22 patients (67%) died of disease at a median of 27 months after PN. Patients who underwent PN for a metachronous contralateral renal mass and for a renal mass ?4cm had the best OS (61 months and 42 months, respectively). Median OS for patients with and without metastatic disease at original diagnosis was 27 and 63 months, respectively (p=0.003). Conclusions: Our findings suggest that the presence of metastasis at original diagnosis and the timing of presentation of the PN index lesion play an important role in survival. These factors should be taken into consideration when determining which patients would benefit from partial nephrectomy in the setting of mRCC.