Geriatric Syndromes

What geriatric syndromes are

In younger adults, one disease usually causes one set of symptoms. In older people, the opposite is common: many small problems in different body systems combine to produce one visible problem. A fall, for example, may result from weak thigh muscles, cataracts, a blood pressure tablet that causes dizziness on standing, numb feet from diabetes and a loose rug together.

That is what defines a geriatric syndrome. It is common in older people, has several contributing causes, and leads to a loss of function. Doctors originally called the core group the "geriatric giants": immobility, instability (falls), incontinence and intellectual impairment (confusion), later expanded to include iatrogenic illness (harm from medical care).

The syndromes are linked. Someone with frailty is more likely to fall, a fall leads to time in bed, immobility causes pressure ulcers and incontinence, and a hospital stay triggers delirium.

The main geriatric syndromes

Sarcopenia, age-related loss of muscle mass and strength, underlies many of these and is now recognized as a condition in its own right.

Shared risk factors

Research on geriatric syndromes has found the same handful of risk factors again and again:

• older age, especially over 80
• cognitive impairment or dementia
• reduced ability to perform daily tasks
• impaired mobility and weak muscles
• taking many medicines, particularly sedatives, sleeping pills, anticholinergics and blood pressure drugs
• hearing and vision loss
• depression and social isolation

This overlap is useful. Improving one shared risk factor, such as strength or medicine burden, can reduce several syndromes at once.

Signs that an older adult may be developing a geriatric syndrome

• walking more slowly, shuffling, or reaching for furniture to steady themselves
• one or more falls, even without injury
• sudden changes in alertness or behavior, especially during an illness or hospital stay
• unplanned weight loss or not finishing meals
• new bladder leaks or rushing to the toilet
• giving up activities, going out less, or needing help with tasks they managed before
• red marks on the heels or tailbone that do not fade within 30 minutes

A sudden change in function is often the first or only sign of an acute illness in older adults. Pneumonia or a urinary infection may present as confusion or a fall without fever or cough.

How doctors assess geriatric syndromes

The standard approach is a comprehensive geriatric assessment (CGA), carried out by a geriatrician or a team that may include nurses, pharmacists, physical and occupational therapists and social workers. It covers:

• Medical: all conditions and a full medicine review, often using the Beers Criteria to find drugs best avoided in older adults.
• Function: daily activities, mobility, gait speed and a "timed up and go" test.
• Cognition and mood: brief memory tests and depression screening.
• Senses and nutrition: vision, hearing, teeth, swallowing and weight.
• Continence and skin.
• Social and environmental: home safety, support, finances and care preferences.

Tests are guided by the findings, for example blood counts, kidney function, vitamin B12, thyroid tests, a bladder scan, or a lying and standing blood pressure.

Treatment and prevention

Because each syndrome has many causes, treatment targets several at once:

• Exercise: strength and balance programs such as tai chi reduce falls and frailty. Physical therapy helps after illness.
• Medicine review (deprescribing): stopping or reducing sedatives, duplicate drugs and medicines whose risks now outweigh benefits. See polypharmacy.
• Nutrition: enough protein and calories, help with shopping and cooking, dental care, and vitamin D where low.
• Vision and hearing: cataract surgery, updated glasses and hearing aids.
• Home safety: good lighting, grab bars, removing trip hazards, a personal alarm.
• Bladder care: timed toileting, pelvic floor exercises and treatment of constipation.
• Delirium prevention in hospital: keeping glasses and hearing aids in use, early walking, good sleep, fluids, avoiding unnecessary catheters and sedatives, and family presence.
• Advance care planning: discussing goals and preferences while the person can take part.

Outlook

Geriatric syndromes predict poorer outcomes, but they are not inevitable parts of aging. Many contributing factors are reversible or improvable. Older adults who receive comprehensive geriatric assessment after a hospital admission are more likely to be alive and living at home months later than those who receive usual care.

Frequently asked questions

What are the most common geriatric syndromes?

The most commonly listed are falls, delirium, frailty, urinary incontinence, pressure ulcers, dizziness, functional decline, sleep problems, malnutrition and problems from multiple medicines. Some lists also include dementia, depression and sensory loss.

What are the geriatric giants?

The "geriatric giants" is an older term for the core problems of old age: immobility, instability (falls), incontinence and intellectual impairment (confusion or dementia). Iatrogenic problems, meaning harm caused by medical treatment, were later added. Today they are grouped as geriatric syndromes.

Why are they called syndromes instead of diseases?

A disease usually has one main cause. A geriatric syndrome is a single problem, like falling or confusion, produced by many causes in different body systems acting together. Treating only one cause rarely solves it, so a broad, whole-person assessment is needed.

At what age do geriatric syndromes start?

There is no fixed age. They become more common after 65 and especially after 80, but what matters more is a person's reserve: their strength, health conditions, medicines and memory. A fit 85-year-old may have none, while a 70-year-old with several illnesses may have many.

Can geriatric syndromes be prevented?

Many can be reduced. Regular strength and balance exercise, a yearly medicine review, good nutrition, corrected vision and hearing, a safe home and staying socially active lower the risk of falls, frailty, delirium and functional decline.