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Frailty is a multidimensional geriatric syndrome characterized by an increased vulnerability to various stressors. Frailty is strongly linked to adverse outcomes, including mortality, admission to nursing homes, falls, and delirium. The Clinical Frailty Scale is a well-validated scale used to quantify the degree of disability from frailty. This activity reviews the clinical frailty of geriatric patients and highlights the role of the Clinical Frailty Scale for use by clinicians in evaluating a patient for frailty. Objectives: Describe frailty as a geriatric syndrome. Outline the risk factors for developing frailty. Identify the various components of the Clinical Frailty Scale. Summarize the clinical significance of the Clinical Frailty Scale. Access free multiple choice questions on this topic.

Across the globe, the geriatric population is increasing, making frailty a concern of increasing importance for healthcare systems. Frailty is a multidimensional geriatric syndrome associated with poor health outcomes and will continue to place a substantial and increasing burden on healthcare systems.[1] Frailty represents a decreased physiologic reserve and function that is more prevalent with increasing age. It is characterized by increasing vulnerability to physiologic stressors.[2] Frailty is the result of cumulative cellular damage from diverse etiologies over the life of the individual—typical aging results in loss of homeostatic reserve in physiological systems. However, despite the loss of these reserves, many individuals still function well with aging. Any stress or insult to these physiologic reserves can result in an older adult decompensating and thus causing increased frailty. Patients can be categorized as robust, pre-frail, or frail, depending on the degree of physiological and functional decline.[3] Frailty can develop due to factors such as (i) socio-demographic influences (e.g. poverty, living alone, low education level); (ii) psychological factors (e.g. depression); (iii) nutritional issues (e.g. malnutrition); (iv) polypharmacy; (v) diseases and complications (inflammatory states, cancer, endocrine disorders, dementia); and (v) low physical activity.[4] Despite the importance of frailty, there is currently no internationally recognized standard definition due to its complex etiology and the inherent difficulty in distinguishing frailty from both aging and disability. Irrespective of definitions, it is clear that frailty is an important geriatric syndrome, which is dynamic, fluctuates over time, and reflects multisystem dysfunction. Given its importance, since the mid-1990s, frailty scores have been developed to help quantify the degree of disability from frailty.[5]

Integrating frailty measures in clinical practice is crucial for developing interventions and individual care plans accounting for age-related conditions (particularly disability) in older persons. Multiple instruments have been developed over the years to capture frailty. The clinical frailty scale is a 9-point scale that quantifies frailty based on function in individual patients. It is complemented by a visual chart to assist with the classification of frailty. Higher scores indicate increased frailty and associated risks. The scale is well validated and has been tested in various clinical settings.[Level 1] This scale can be used by an interprofessional healthcare team of clinicians, including physicians, physician assistants, nurse practitioners, nurses, pharmacists, and nutritionists, to classify frailty and identify patients at high risk for adverse outcomes.[17] This tool can help optimize quality of life outcomes for geriatric patients. *Kenneth Rockwood has given signed permission to use CFS for StatPearls use.