Comprehensive geriatric assessment is a process used by healthcare practitioners to assess the status of people who are frail and older in order to optimize their subsequent management. These people often have complex, multiple and interdependent problems which make their care more challenging than in younger people, or those with just one medical problem. CGA is the core work of specialists in the care of older people, although many other health care practitioners either have not heard of it, or are not aware of what it actually is. It is also called "multidimensional geriatric assessment." The use of CGA improves the outcomes for people who are older and frail. For example, people who undergo CGA whilst in hospital are more likely to remain in their own home up to a year after discharge from hospital when compared with people who received standard medical treatment.
History
have focused on holistic assessments of their patients since the early days of the specialty. Dr. Marjorie Warren was the first doctor in the UK to systematically assess older people, categorizing them into those who could be got better with appropriate treatment and then discharged, and those who needed continuing care. Over the past 30 years, CGA has evolved greatly, becoming much more explicit and better defined, and it has been implemented in a number of ways. One of the first formal models was the orthogeriatrics service set up in Hastings in the 1960s. The collaboration between Devas, an orthopaedic surgeon, and Irvine, a geriatrician, laid the foundation for a template for managing orthopaedic problems in older patients with concurrent medical problems. Subsequent collaborative models between geriatricians and other specialists have been described, for example managing cancer in people who are older and frail. In acute medicine the involvement of early CGA has been shown to reduce length of stay and improve management of people over the age of 70.
Rationale
Two thirds of older people have two or more long-term medical problems. This makes determining the cause of any deterioration more difficult, and thus deciding the best treatment plan is also challenging, since it depends on accurately diagnosing the underlying medical problem. CGA is a systematic approach to identifying the problems that are limiting a person's ability to thrive and make the most of their life, in order to try to remedy as many of the problems as possible. The aim is to maximize quality of life.
Each of these domains is assessed assess different domains. The physician assesses physical and mental health; the pharmacist may undertake a medication review ; the physiotherapist, balance and mobility; the occupational therapist, activities of daily living; and the social worker, social aspects of the case. Other paramedical health care professionals may be involved as needed, on a case by case basis - for example a speech and language therapist if there are concerns about language or swallowing, a dietician if there are concerns about nutrition, and so on. Usually, the MDT meet regularly to integrate the information from the various assessments in order to formulate a list of problems and potential solutions. Then, recommendations about how to proceed can be explained to the older person to see what their preferences are. Since the person's condition may change over time, the process is iterative, working towards a final management plan. In the case of hospital in-patients the aim is to devise a robust discharge plan.
Evidence for its benefit
A Cochranesystematic review of studies looking at CGA found 29 relevant randomized controlled trials done in nine countries. They included a total of 13,766 people over 65 who were admitted to hospital, and compared CGA with routine care. This provides a fairly powerful body of evidence on which to base clinical practice, and is the basis for National Institute for Health and Care Excellence recommending its use in older people with complex needs admitted to hospital. It is widely accepted that CGA provides the benefits cited in the introduction above, except for people who are too well, or too frail. There is also evidence of its benefit with respect to functional status, social activity, satisfaction with life and health, and mood when used in primary care. However, the evidence for its use in the community was low quality, and the NICE recommended further research in specific groups of people, before making strong recommendations for its use.
Areas in which it is used
CGA has been shown to be useful for treating people who are hospitalized, in care homes, in case management, in cancer treatment for older people, and in primary care. There is a relative lack of geriatricians with the training and expertise to contribute to a CGA, therefore, a significant proportion of people who are older and frail and who may benefit from CGA do not have access to it.
