[What is the role of the comprehensive geriatric assessment in Geriatric Oncology?].

The growing increase in world population and generalised aging have been accompanied by an increase in the prevalence of cancer in the elderly. Aging is associated with certain physiological changes, some of which are enhanced by the neoplasm itself. Along with this, the elderly oncology patient usually has more problems than the rest of the elderly, and has a multitude of deficits. These characteristics require a special handling of the older patient with cancer, by using the main tool used in Geriatrics, the comprehensive geriatric assessment. This article analyses the importance of the comprehensive geriatric assessment in this population group, paying special attention to its ability to predict the toxicity of chemotherapy and the survival of the elderly oncology, as well as its ability to classify these patients into groups that help in the decision making process.