Vol. 14. Núm. 62.
Páginas 3835-3845 (Septiembre 2026)

Actualización
Malnutrición, disfagia, anorexia, sarcopenia y obesidad sarcopénica

Malnutrition, dysphagia, anorexia, sarcopenia, and sarcopenic obesity

D.F. Febres PanezJ.J. Arechederra CalderónN. Bassy IzaV.E. Landaeta RiberaH.D. Villa AlvaradoP.M. Duluc Escobar
Doi : https://10.1016/j.med.2026.09.003
Opciones
Resumen

La malnutrición y sus determinantes (anorexia del envejecimiento, disfagia y sarcopenia, incluida la obesidad sarcopénica) son síndromes geriátricos altamente prevalentes y con un importante impacto clínico, funcional y pronóstico en el adulto mayor. En esta actualización se pone al día la evidencia sobre el cribado, el diagnóstico y el abordaje integral de la malnutrición en personas mayores, desde una perspectiva clínica y funcional. También se revisan las principales herramientas de cribado nutricional en geriatría y su integración con los criterios diagnósticos GLIM. Se analizan la anorexia del envejecimiento y la disfagia como factores clave del riesgo nutricional, así como la sarcopenia y la obesidad sarcopénica, incluyendo su evaluación mediante técnicas de composición corporal y su relación con el deterioro funcional, la dependencia y la mortalidad. Finalmente, se resumen los principios del manejo basados en intervenciones multimodales centradas en la nutrición personalizada, el ejercicio multicomponente y un uso selectivo de terapias farmacológicas emergentes. La evaluación nutricional sistemática, integrada en la valoración geriátrica integral, es esencial para identificar y tratar precozmente la malnutrición y sus determinantes. Un abordaje multidimensional e individualizado permite mejorar la funcionalidad y reducir la dependencia y la mortalidad en el adulto mayor.

Palabras clave
Malnutrición
Sarcopenia
Anorexia del envejecimiento
Obesidad sarcopénica
Evaluación nutricional
Abstract

Malnutrition and its determinants (anorexia of aging, dysphagia, and sarcopenia, including sarcopenic obesity) are highly prevalent geriatric syndromes with significant clinical, functional, and prognostic implications for older adults. This update reviews the current evidence on the screening, diagnosis, and comprehensive management of malnutrition in older adults from a clinical and functional perspective. It also reviews the main nutritional screening tools in geriatrics and their integration with the GLIM diagnostic criteria. It analyzes anorexia of aging and dysphagia as key nutritional risk factors as well as sarcopenia and sarcopenic obesity, including their assessment using body composition techniques and their relationship to functional decline, dependency, and mortality. Finally, it summarizes the principles of management, which are based on multimodal interventions focused on personalized nutrition, multicomponent exercise, and a selective use of emerging pharmacological therapies. Systematic nutritional assessment, integrated into comprehensive geriatric assessment, is essential for the early identification and treatment of malnutrition and its determinants. A multidimensional and individualized approach improves functional status and reduces dependence and mortality in older adults.

Keywords
Malnutrition
Sarcopenia
Anorexia of aging
Sarcopenic obesity
Nutritional assessment

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