Falls in the elderly
From IDWiki
Definition
- Event which results in a person coming to rest inadvertently on the ground or floor or other lower level
Etiology
- Falls are caused by a combination of intrinsic and extrinsic risk factors combined with a precipitating factor
Intrinsic risk factors
- Gait & balance impairment
- Peripheral neuropathy
- Vestibular dysfunction
- Muscle weakness
- Vision impairment
- Advanced age
- Impaired ADLs
- Orthostasis
- Dementia
- Drugs
Extrinsic risk factors
- Environmental hazards
- Poor footwear
- Restraints
Precipitating causes
- Trips and slips
- Drop attack
- Syncope
- Dizziness
- Acute medical illness
Assessment
- Assess circumstances, causes, consequences, and comorbidities
- History
- What happened before? Were there any preceding symptoms or prodrome?
- What happened? How long were they down? How did they get up?
- Loss of consciousness due to syncope or seizures
- What happened after? Was there any traume, fracture, anxiety?
- Risk of falls
- History of prior falls or gait instability
- Age-related changes: sensory input, central processing, motor output
- Comorbidities
- Dementia
- AFib, heart failure, COPD, DM
- Cataracts, glaucoma
- BPPV, Parkinson disease, stroke
- Situational
- Drugs: SSRIs, benzodiazepines, BP meds
- Highest risk are benzodiazepines, alcohol, and antidepressants
- Having 4+ prescribed medications
- Environment: carpet, slippery floors
- Drugs: SSRIs, benzodiazepines, BP meds
- Orthostatic vitals: supine BP/HR, then BP/HR at 1 and 3 minutes
- Neurological exam, including proprioception
- Functional history
Physical Examination
- Vitals, including orthostatics
- Cognitive testing, with MMSE
- Vision and hearing screen
- Cardiovascular: rule our aortic stenosis, arrhythmia, carotid bruits
- Gait assessment: time up and go, 30-second chair stand, or 4-stage balance test
- Neuro: power and tone, lower extremity sensation and proprioception, finger-nose and heel-shin, and Parkinsonism (glabellar tap, diminution, toe tap)
- MSK: examine feet, rule out osteoarthritis, rheumatoid arthritis, and osteoporosis
Investigations
Management
Individuals Interventions
- Refer to [1] below
- Otago exercise program (incidence rate ratio 0.68, 0.56-0.79)
- Home assessment and modification (RR 0.79, 0.65-0.97)
- Hazard assessment and modification for fallers (2 trials, RR 0.56, 0.42-0.76)
- Withdrawal of psychotropic medication (RR 0.34, 0.16-0.74)
- Academic detailing and feedback to clinicians on medication modification (1 trial, RR 0.61, 0.41-0.91)
- Cardiac pacing in fallers with cardioinhibitory carotid sinus hypersensitivity (1 trial, RR 0.42, 0.23-0.75)
- Antislip shoe device for icy conditions (RR 0.42, 0.22-0.78)
- Expedited first cataract surgery, in women (1 trial, RR 0.60, 0.36-0.98)
- Tai Chi (RR 0.65, 0.51-0.82)
- Vitamin D (RR 0.72, 0.55-0.95) in long-term care
Multifactorial Intervention to Reduce Falls
- Refer to [2] below
- NNT of 8 to prevent 1 fall
Risk Factor | Assessor | Intervention |
---|---|---|
postural hypotension (SBP ≥20, or to <90 standing) | RN | ankle pumps, hand clenching, elevation of head of bed, change/adjust culprit medications if possible |
use of benzos or other sedative/hypnotic drugs | RN | education about medcation use, nonpharmacologic treatment of sleep disorder, discontinuation of medications |
≥4 prescription medications | RN | review of medications with primary physician |
inability to transfer safely to bathtub or toilet | RN | training in transfer skills, environmental alterations (grab bars, raised toilet seats) |
environmental hazards for falls | RN | removal of hazards, safer furniture, grab bars, handrails |
any gait impairment | PT | gait training, assistive device |
any transfer or balance impairment | PT | balance exercises, environmental alterations |
impairment in limb strength or range of motion | PT | resistance and range of motion exercises |
Prognosis
- After hip fracture, 2 year mortality is 30%
Further Reading
- Gillespie LD, et al. Interventions for preventing falls in older people living in the community. Cochrane Database Syst Rev. 2012;9:CD007146.
- Tinetti ME, et al. A multifactorial intervention to reduce the risk of falling among elderly people living in the community. N Engl J Med. 1994;331(13):821-7.