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Background  The value of liver-directed therapy (LDT) in patients with metastasic renal cell carcinoma (MRCC) is still an active field of research, particularly in the era of tyrosinkinase inhibitor (TKI) therapy.    Methods  The records of 35 patients with MRCC undergoing LDT of metastasic liver lesions between 1992 and 2015 were retrospectively analyzed. Immediate postoperative TKI was given in a subgroup of patients after LDT for metastasic lesions. Uni- and multivariate models were applied to assess overall survival (OS), progression-free survival (PFS) and disease-free survival (DFS).    Results  Following primary tumor (renal cell cancer) resection and LDT, respectively, median OS was better for a total of 16 patients (41 %) receiving immediate postoperative TKI with 151 and 98 months, when compared to patients without TKI therapy with 61 ( p = 0.003 ) and 40 months ( p = 0.032 ). Immediate postoperative TKI was associated with better median PFS (47 months versus 19 months;  p = 0.023 ), whereas in DFS only a trend was observed (51 months versus 19 months;  p = 0.110 ).    Conclusions  LDT should be considered as a suitable additive tool in the era of TKI therapy of MRCC to the liver. In this context, postoperative TKI therapy seems to be associated with better OS and PFS, but not DFS.

The value of hepatic resection in metastasic renal cancer in the Era of Tyrosinkinase Inhibitor Therapy