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Percutaneous endoscopic gastrostomy: confirming the clinical benefits far beyond anthropometry. OBJECTIVES: The real benefit of gastrostomy is still a matter of debate. We aimed to prospectively evaluate the global impact of percutaneous endoscopic gastrostomy (PEG) in patients followed at a specialized multidisciplinary clinic, namely, the impact on the need for healthcare resources, anthropometric measures, pressure ulcers prevention and healing, and nutritional and hydration status. PATIENTS AND METHODS: From the 201 patients who underwent PEG between May 2011 and September 2014, 60 were included in a prospective study. Anthropometric, clinical, and laboratorial variables were collected and compared before and after PEG. Follow-up duration, mortality, and number of emergency department visits or hospital admissions were also assessed. RESULTS: Thirty-three (55.0%) patients were women and the median age was 79 years. The main indications for PEG were dementia (43.3%) and poststroke dysphagia (30.0%). Four months following PEG, significant decreases in the tricipital skinfold (P=0.002) and brachial perimeter (P=0.003) were found. A decrease in the mean number of hospitalizations (1.4 vs. 0.3; P<0.001) and visits to emergency department (2.2 vs. 1.1; P=0.003) was noted in the next 6 months after PEG compared with the previous semester. In 53.8% of patients with pressure ulcers, complete healing was observed after PEG. PEG was associated with increases in hemoglobin (P=0.024), lymphocytes (P=0.041), cholesterol (P=0.008), transferrin (P<0.001), albumin (P<0.001), and total proteins (P<0.001), and a decrease in serum sodium (P=0.001). CONCLUSION: Anthropometric values may not translate the early benefits of a gastrostomy. PEG decreases the need for hospital health care, facilitates healing of pressure ulcers, and induces biochemical changes that may reflect better nutrition and hydration.