Abstract
Background
The prognostic implications of preoperative serum total cholesterol (TC) level in patients with renal cell carcinoma (RCC) remain poorly understood. We investigated the prognostic role of preoperative serum TC in patients with surgically treated RCC from a large, multi-institutional Korean collaboration.
Patients and methods
A database of 3064 patients with RCC who underwent radical or partial nephrectomy between 1999 and 2011 at eight academic centers was analyzed. Preoperative serum TC levels were measured in fasting blood samples.
Results
Low preoperative serum TC level was associated with aggressive tumor characteristics, including large tumor size, advanced stage, high nuclear grade, lymph node involvement, and sarcomatous differentiation (all P < 0.001). Low TC level was associated with poor recurrence-free or cancer-specific survival (CSS) in the entire cohort, whereas the significance of the association changed after stratification by disease stage and histologic subtype. Multivariate Cox regression analysis showed that preoperative TC, as a continuous or categorical variable, was an independent predictor of CSS.
Conclusions
Preoperative low serum TC level was associated with aggressive tumor characteristics and poor CSS in patients with surgically treated RCC. Preoperative TC may provide additional guidance regarding the choice of therapeutic strategies to improve prognosis.
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Acknowledgments
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2015R1D1A1A01057786).
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Kang, H.W., Seo, S.P., Kim, W.T. et al. Low preoperative serum cholesterol level is associated with aggressive pathologic features and poor cancer-specific survival in patients with surgically treated renal cell carcinoma. Int J Clin Oncol 23, 142–150 (2018). https://doi.org/10.1007/s10147-017-1172-4
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DOI: https://doi.org/10.1007/s10147-017-1172-4