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Influence of nutritional deficiency on prognosis of renal cell carcinoma (RCC).

PMID: 24028765 (view PubMed database entry)
DOI: 10.1111/bju.12275 (read at publisher's website )

Kyungtae Ko, Young H Park, Jeong W Lee, Ja H Ku, Cheol Kwak, Hyeon H Kim,

<h4>Objective</h4>To evaluate the prognosis of patients with renal cell carcinoma (RCC) by nutritional status defined by body mass index (BMI), serum albumin and cholesterol.<h4>Patients and methods</h4>This study retrospectively enrolled 1437 patients who underwent radical nephrectomy (932) or partial nephrectomy (505) for RCC. We assigned nutritional status according to the presence of none or one nutritional risk factor (control group) and two or all three of the following nutritional risk factors (nutritional deficiency group). The nutritional factors and thresholds were preoperative albumin level (<3.5 g/dL), preoperative cholesterol level (<220 mg/dL), and preoperative BMI (<23 kg/m(2) ) RESULTS: The patients' mean (sd) age was 55.23 (12.41) years and BMI was 24.36 (3.17) kg/m(2) . The mean (sd) serum cholesterol level was 180.07 (38.24) mg/dL, and the albumin level was 4.2 (0.45) g/dL. In all, 141 (9.8%) patients had none of the nutritional deficiency criteria, 802 (55.8%) had one, 429 (29.9%) had two, and 65 (4.5%) had all three. Clinicopathological variables, i.e. female gender, high tumour stage, positive lymph node metastasis, positive distant metastasis, high nuclear grade and non-clear cell type histopathology were associated with the nutritional deficiency group. In multivariate Cox analysis, nutritional deficiency was an independent predictor for RCC recurrence (hazard ratio [HR] 1.39, 95% confidence interval [CI] 1.05-1.83, P = 0.020) and RCC-related mortality (HR 2.06, 95% CI 1.39-3.03, P < 0.001).<h4>Conclusion</h4>Nutritional deficiency defined by BMI, serum albumin and cholesterol is an important factor that predicts postoperative prognosis of patients with RCC who have undergone radical or partial nephrectomy.

BJU Int (BJU international)
[2013, 112(6):775-780]

Cited: 24 times

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