JOURNAL ARTICLE

Clinical and oncological outcomes in Chinese patients with renal cell carcinoma and venous tumor thrombus extension: single-center experience

Xiaonan Chen, Shijie Li, Zhenqun Xu, Kefeng Wang, Donghui Fu, Qiang Liu, Xia Wang, Bin Wu
World Journal of Surgical Oncology 2015 February 4, 13: 14
25650039

BACKGROUND: To evaluate the clinical and oncological outcomes and to identify prognostic factors for survival in Chinese patients with renal cell carcinoma (RCC) and venous tumor thrombus (VTT).

METHODS: A total of 86 patients who underwent nephrectomy and tumor thrombectomy for RCC and venous tumor thrombus extension from 2003 to 2013 were included in this retrospective study. The records of these patients were reviewed. Kaplan-Meier analysis was used to determine cancer-specific survival (CSS). Prognostic factors for CSS were identified by univariate and multivariate analyses using the Cox proportional hazards regression mode.

RESULTS: All patients in this cohort received radical nephrectomy and tumor thrombectomy. Median follow-up period was 27.0 months (range 3-111). No patients died intraoperatively, and the complication rate was 36.0%. The 1-, 3-, and 5-year CSS rates for all patients were 93.0%, 70.9%, and 58.1%, respectively, and those for patients without distant metastasis at presentation were 95.3%, 82.6%, and 68.6%, respectively. Multivariate Cox regression analysis showed that lymph node invasion, distant metastasis at presentation, and invasion of the inferior vena cava (IVC) wall were the independent prognostic factors for CSS in all patients. For patients without distant metastasis, tumor grade, lymph node invasion, and perinephric fat invasion were significantly associated with CSS on multivariate analysis.

CONCLUSIONS: Survival rates for patients with RCC and VTT were still poor. Our results indicated that lymph node invasion, distant metastasis at presentation, and invasion of the IVC wall were independent negative prognostic factors.

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