Evaluation of Nutritional Status in Cancer Patients Underwent Radiotherapy: The Results of Biochemical, Body Composition with Bioelectrical Impedance Analysis, Anthropometric Measurements, and Patient-Generated Subjective Global Assessment
Abstract
Aim: This study aims to evaluate the nutritional status and the effect of radiotherapy (RT) on nutrition in all ambulatory cancer patients.
Material and Method: In this prospective observational study 105 cancer patients with various diagnoses treated between 2013 and 2014 were evaluated. All patients were ≥18 years old and had Karnofsky Performance Status ≥70. Anthropometric measurements, body composition with bioelectric impedance, and patient-generated Subjective Global Assessment (PG-SGA) tools were used. The height, weight, body mass index (BMI), triceps skin fold thickness, mid-upper arm circumference, hemoglobin, and serum albumin levels were determined twice before and after RT. Additionally, nutrition-related symptoms and short-term weight loss results were determined by PG-SGA questionnaires.
Results: The patients’ median age was 53 years (range, 18-82 years). At initial evaluation 74 patients were well nourished using the PG-SGA global rating. Malnutrition developed in totally 33 of these 74 patients after RT. The PG-SGA results after RT were significantly worse than before treatment. PG-SGA revealed no significant relationship between nutritional status prior to RT and the parameters including gender, age, mean weight, BMI, disease duration, pre-RT hemoglobin and albumin levels. Post-RT evaluation showed a significant relationship between deterioration (PG-SGA B-C) and mean weight, BMI, serum albumin, hemoglobin levels, and concomitant chemotherapy. Gastrointestinal and head and neck cancer patients had the most deterioration after RT. The patients' weight, BMI, fat-free mass, total body water, and the percentage weight loss at the end of RT were significantly lower than the initial assessment.
Conclusion: It is considerable to use multiple tools for nutritional monitoring. Patients who received RT to the head and neck and upper abdomen region had a high risk of deterioration after treatment. These patients should be monitored carefully during all treatment periods.
Keywords
Nutrition assessment, Cancer, Radiotherapy, Bioelectrical impedance, Anthropometry
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