J Cancer 2012; 3:184-190. doi:10.7150/jca.4456 This volume

Research Paper

Liver Directed Therapy for Renal Cell Carcinoma

Russell C. Langan1✉, R. Taylor Ripley1, Jeremy L. Davis1, Peter A. Prieto1, Nicole Datrice1, Seth M. Steinberg2, Gennady Bratslavsky3, Udo Rudloff1, Udai S. Kammula1, Alexander Stojadinovic4, Itzhak Avital1, 5

1. Surgery Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA.
2. Biostatistics and Data Management Section, Office of the Clinical Director, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA.
3. Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA.
4. Department of Surgery, Division of Surgical Oncology, Walter Reed National Military Medical Center, Bethesda, MD, USA.
5. Bon Secours Cancer Institute, Richmond, VA, USA.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
Langan RC, Ripley RT, Davis JL, Prieto PA, Datrice N, Steinberg SM, Bratslavsky G, Rudloff U, Kammula US, Stojadinovic A, Avital I. Liver Directed Therapy for Renal Cell Carcinoma. J Cancer 2012; 3:184-190. doi:10.7150/jca.4456. Available from https://www.jcancer.org/v03p0184.htm

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Background: Metastatic renal cell carcinoma (RCC) to the liver portrays a poor prognosis and liver directed therapy remains controversial. We aimed to determine potential selection criteria for patients who might benefit from this strategy.

Materials and Methods: We evaluated 247 consecutive patients with RCC metastatic to the liver from a prospectively maintained database.

Results: Eighteen patients received liver directed therapy (18/247, 7%). Ten patients underwent liver resection (10/247, 4%) and eight patients underwent radiofrequency ablation (RFA, 8/247, 3%). All were rendered free of disease in the liver. Five had synchronous liver disease and underwent synchronous resections with their primary. Mortality was 0%. Fourteen had single (surgery 7, RFA 7) and four (surgery 3, RFA 1) had multiple liver lesions, respectively. Median size of lesions was 5cm (0.5 - 10cm) and 2.5cm (1 - 6cm) in the surgery and RFA groups, respectively. Median DFI was 10 months, and no difference was observed in those with a longer vs. shorter than median DFI (p = 0.95); liver specific progression free survival for the surgery and RFA groups were 4 and 6 months, respectively (p= 0.93). 1, 3 and 5-year actuarial survivals for the whole group were 89%, 40%, 27%. Median survival for the surgery group was 24 (3 to 254+) months, and for the RFA group 15.6 (7-56+) months (p = 0.56). Metachronous liver disease was associated with prolonged survival (p = 0.02).

Conclusions: Liver directed therapy for RCC is safe. For highly selected patients with metachronous liver RCC metastases, liver directed therapy should be considered in a multidisciplinary manner.

Keywords: liver resection, metastatic renal cell carcinoma, liver metastases, radiofrequency ablation.