Falls in the elderly

Falls in the Elderly
White House Medical Clinic, Washington, D.C. Falls are the leading cause of injury-related visits to emergency departments in the United States and the primary etiology of accidental deaths in persons over the age of 65 years. The mortality rate for falls increases dramatically with age in both sexes and in all racial and ethnic groups, with falls accounting for 70 percent of accidental deaths in persons 75 years of age and older. Falls can be markers of poor health and declining function, and they are often associated with significant morbidity. More than 90 percent of hip fractures occur as a result of falls, with most of these fractures occurring in persons over 70 years of age. One third of community-dwelling elderly persons and 60 percent of nursing home residents fall each year. Risk factors for falls in the elderly include increasing age, medication use, cognitive impairment and sensory deficits. Outpatient evaluation of a patient who has fallen includes a focused history with an emphasis on medications, a directed physical examination and simple tests of postural control and overall physical function. Treatment is directed at the underlying cause of the fall and can return the patient to baseline function. (Am Fam Physician 2000; 61:2159-68,2173-4.) Elderly patients who have fallen should undergo a thorough evaluation. Determining and treating the underlying cause of a fall can return patients to baseline function and reduce the risk of recurrent falls. These measures can have a substantial impact on the morbidity and mortality of falls. The resultant gains in quality of life for patients and their caregivers are significant. Epidemiology of Falls in the Elderly
From 1992 through 1995, 147 million injury-related visits were made to emergency departments in the United CATASTROPHE: A Mnemonic for States.1 Falls were the leading cause of external injury, accounting for 24 percent of these visits.1 Emergency department visits related to falls are more common in children less than five years of age and adults 65 years of The rightsholder did not grant rights to reproduce this item in electronic media. For age and older. Compared with children, elderly persons the missing item, see the original print version who fall are 10 times more likely to be hospitalized and eight times more likely to die as the result of a fall.2 Trauma is the fifth leading cause of death in persons more than 65 years of age,3 and falls are responsible for 70 percent of accidental deaths in persons 75 years of age and older. The elderly, who represent 12 percent of the population, account for 75 percent of deaths from falls.4 The number of falls increases progressively with age in both sexes and all racial and ethnic groups.5 The injury rate for falls is highest among persons 85 years of age and older (e.g., 171 deaths per 100,000 white men in this age group).6 Annually, 1,800 falls directly result in death.7 Approximately 9,500 deaths in older Americans are Elderly persons who survive a fall experience significant morbidity. Hospital stays are almost twice as long in elderly patients who are hospitalized after a fall than in elderly patients who are admitted for another reason.9 Compared with elderly persons who do not fall, those who fall experience greater functional decline in activities of daily living (ADLs) and in physical and social activities,10 and they are at greater risk for subsequent institutionalization.11 Falls and concomitant instability can be markers of poor health and declining function.12 In older patients, a fall may be a nonspecific presenting sign of many acute illnesses, such as pneumonia, urinary tract infection or myocardial infarction, or it may be the sign of acute exacerbation of a chronic disease.13 About one third (range: 15 to 44.9 percent) of community-dwelling elderly persons and up to 60 percent of nursing home residents fall each year; one half of these "fallers" have multiple episodes.14 Major injuries, including head trauma, soft tissue injuries, fractures and dislocations, occur in 5 to 15 percent of falls in any given year.15 Fractures account for 75 percent of serious injuries, with hip fractures occurring in 1 to 2 In 1996, more than 250,000 older Americans suffered fractured hips, at a cost in excess of $10 billion. More than 90 percent of hip fractures are associated with falls, and most of these fractures occur in persons more than 70 years of age.8 Hip fracture is the leading fall-related injury that results in hospitalization, with these hospital stays being significantly prolonged and costly.16 It is projected that more than 340,000 hip fractures will occur in the year 2000, and this incidence is expected to double by TABLE 2
Risk Factors for Falls
Demographic factors
Historical factors
Chronic conditions, especially neuromuscular disorders Medications, especially the use of four or more prescription drugs (see Table 4) Physical deficits
Reduced vision, including age-related changes (i.e., decline in visual acuity, decline in accommodative capacity, glare intolerance, altered depth perception, presbyopia [near vision], decreased night vision, Neurologic changes, including age-related changes (i.e., postural instability; slowed reaction time; diminished sensory awareness for light touch, vibration and temperature; decline of central integration of visual, vestibular and proprioceptive senses) Decreased hearing, including age-related changes (i.e., presbycusis [increase in pure tone threshold, predominantly high frequency], impaired speech discrimination, excessive cerumen accumulation) Information from Studenski S, Wolter L. Instability and falls. In: Duthie EH Jr, Katz PR, eds. Practice of geriatrics. 3d ed. Philadelphia: Saunders, 1998:199-206, and Tinetti ME, Doucette J, Claus E, Marottoli R. Risk factors for serious injury during falls by older persons in the community. J Am Geriatr Soc 1995;43:1214-21. One fourth of elderly persons who sustain a hip fracture die within six months of the injury. More than 50 percent of older patients who survive hip fractures are discharged to a nursing home, and nearly one half of these patients are still in a nursing home one year later.18 Hip fracture survivors experience a 10 to 15 percent decrease in life expectancy and a meaningful decline in overall quality of life. Most falls do not end in death or result in significant physical injury. However, the psychologic impact of a fall or near fall often results in a fear of falling and increasing self-restriction of activities. The fear of future falls and subsequent institutionalization often leads to dependence and increasing immobility, followed by functional deficits and a greater risk of falling. Accident, environmental hazard, fall from bed Sedative-hypnotic and anxiolytic drugs (especially Gait disturbance, balance disorders or weakness, Central nervous system disorder, syncope, drop Hypoglycemic agents Any medication that is likely to affect balance *--Listed in approximate order of occurrence. Adapted with permission from Rubenstein LZ. Falls. In: Yoshikawa TT, Cobbs EL, Brummel-Smith K, eds. Ambulatory geriatric care. St. Louis: Mosby, 1993: 296-304. Evaluation of the Elderly Patient Who Falls
Screening
Elderly patients with known risk factors for falling should be questioned about falls on a periodic basis. Specific inquiry is necessary because of the fears many elderly persons harbor about being institutionalized. Thus, these patients are unlikely to give If an elderly patient falls more than twice A single fall is not always a sign of a major problem and an in a six-month period, an evaluation for treatable causes should be undertaken. increased risk for subsequent falls. The fall may simply be an isolated event. However, recurrent falls, defined as more than two falls in a six-month period, should be evaluated for treatable causes. An immediate evaluation is required for falls that produce injuries or are associated with a new acute illness, loss of consciousness, A thorough history is essential to determine the mechanism of falling, specific risk factors for falls, impairments that contribute to falls and the appropriate diagnostic work-up. Many patients attribute a fall to "just tripping," but the family physician must determine if the fall occurred because of an environmental obstacle or another precipitating factor. The physician should ask about the activity the patient was engaged in just before and at the time of the fall, especially if the activity involved a positional change. The location of the fall should be ascertained. It is also important to know whether anyone witnessed the fall and whether the patient sustained any injuries. The patient and, if applicable, witnesses or caregivers should be asked in detail about previous falls and whether the falls were the same or different in character. The physician also needs to determine The mnemonic CATASTROPHE is helpful for recalling the principal items in a functional inquiry (Table Risk Factor Assessment
The frequency of falling is related to the The risk of sustaining an injury from a fall depends on the accumulated effect of multiple disorders superimposed on age-related changes. individual patient's susceptibility and environmental hazards. The frequency of falling is related to the accumulated effect of multiple disorders superimposed on age-related changes. The literature recognizes a myriad of risk factors for falls (Table 2).20,21 The likelihood of falling increases with the number of risk factors.22 The risk factors responsible for a fall can be intrinsic (i.e., age-related physiologic changes, diseases and medications) or extrinsic (i.e., environmental hazards). It is essential to remember that a single fall may have multiple causes, and repeated falls may each have a different etiology. Thus, it is critical to evaluate The Changing Approach to Falls in the Elderly
A = Patient with an accidental fall and no intrinsic or extrinsic risk factors C = Patient with moderate illness, loss of mobility and some prescription medications who falls because of an extrinsic factor D = Severely ill patient with many medications who falls even without extrinsic E = Elderly patient with numerous age-related changes who falls because of an FIGURE 1. Factors that contribute to the risk of falls in the elderly population.
Adapted with permission from Steinweg KK. The changing approach to falls in
t e elderly. Am Fam Physician 1997;56:1815-22,1823. Intrinsic Factors. Normal physical and mental changes related to aging (but not associated with disease) decrease functional reserve. As a result, elderly patients become more susceptible to falls when they are Some age-related changes are not necessarily "normal," but they are modifiable. When possible, these Virtually any acute or chronic disease can cause or contribute to falls. The most common etiologies of Polypharmacy (four or more prescription medications), the initiation of a new drug treatment in the previous two weeks and A critical element of the targeted history is a review of medications, including prescription, over-the-counter, herbal and illicit drugs. Red flags are polypharmacy (four or more prescription medications),24 the initiation of a new drug therapy in the previous two weeks25 and the use of any drug listed in Table 4. Tricyclic antidepressants and other heterocyclic antidepressants have long been associated with an increased risk for falls. The selective serotonin reuptake inhibitor (SSRI) antidepressants are largely free of the side effects of tricyclic antidepressants and have been presumed to be safer for use in persons at high risk for falling. However, a recent large study of almost 2,500 nursing home residents found little difference in the rate of falls between patients receiving tricyclic antidepressants and those receiving SSRIs.26 Thus, the physician needs to maintain a high index of suspicion when reviewing the medications Extrinsic Factors. In a fall, more active persons are likely TABLE 5
to be exposed to high-intensity forces at impact, whereas I HATE FALLING: A Mnemonic for the risk of injury in less active persons depends more on their susceptibility (i.e., the presence of fragile bones or ineffective protective responses).27 Frail elderly persons tend to fall and injure themselves in the home during the course of routine activities. Vigorous older persons are I Inflammation of joints (or joint deformity)
more likely to participate in dynamic activities and to fall H Hypotension (orthostatic blood pressure
and be injured while challenged by environmental A Auditory and visual abnormalities
hazards such as stairs or unfamiliar areas away from T Tremor (Parkinson's disease or other
E Equilibrium (balance) problem
A variety of extrinsic factors, such as poor lighting, F Foot problems
unsafe stairways and irregular floor surfaces, are A Arrhythmia, heart block or valvular disease
involved in falls among the elderly. Many of these L Leg-length discrepancy
L Lack of conditioning (generalized
I Illness
Figure 1 shows how intrinsic and extrinsic factors can N Nutrition (poor; weight loss)
combine to change the likelihood of falling in the elderly G Gait disturbance
Physical Examination
Adapted with permission from Sloan JP. Mobility failure. In: Protocols in primary care A mnemonic (I HATE FALLING) can be used to remind geriatrics. New York: Springer, 1997:33-8. the physician of key physical findings in patients who fall or nearly fall (Table 5).19 This mnemonic focuses the physician's attention on common problems that are likely to respond to treatment. Most falls have multiple causes. Only rarely are all of the causes fully reversible. Nonetheless, a partial positive impact on one or a few causes often makes a major difference in quality of life for the patients and caregivers. A home visit is invaluable for assessing modifiable risk factors and determining appropriate interventions. A home safety checklist can guide the visit and ensure a thorough evaluation (Figure 2).23 It is particularly important to assess caregiver and housing arrangements, environmental hazards, alcohol use and An algorithm for the evaluation of falls is presented in Figure 3. Home Safety Checklist
All living spaces
Bathrooms
_____ Install grab bars in the bathtub or shower _____ Remove low furniture and objects on the _____ Use rubber mats in the bathtub or shower. _____ Take up floor mats when the bathtub or _____ Remove cords and wires on the floor. _____ Check lighting for adequate illumination at night (especially in the pathway to the bathroom). Outdoors
_____ Secure carpet or treads on stairs. _____ Install handrails on stairs and steps. _____ Eliminate chairs that are too low to sit in and _____ Trim shrubbery along the pathway to the get out of easily. _____ Avoid floor wax (or use nonskid wax). _____ Install adequate lighting by doorways and _____ Ensure that the telephone can be reached FIGURE 2. Checklist for evaluating safety during the home visit.
Adapted with permission from Rubenstein LZ. Falls. In: Yoshikawa TT, Cobbs EL, Brummel-Smith K,
e s. Ambulatory geriatric care. St. Louis: Mosby, 1993:296-304. Balance and Gait Testing. Postural control is a complex task that involves balance, ambulation capability, endurance, range of motion, sensation and strength. Several simple tests have exhibited a strong correlation with a history of falling. These functional balance measures are quantifiable and correlate well with the ability of older adults to ambulate safely in their environment. The tests can also be used to measure changes in mobility after interventions have been applied. One-leg balance is tested by having the patient stand unassisted on one leg for five seconds. The patient chooses which leg to stand on (based on personal comfort), flexes the opposite knee to allow the foot to clear the floor and then balances on one leg for as long as possible. The physician uses a watch to time the patient's one-leg balance.30 This test predicts injurious falls but not all falls. Evaluation of Falls
IGURE 3.Suggested algorithm for the evaluation of falls in the elderly.
The timed "Up & Go" test evaluates gait and balance (Table 6).31 The patient gets up out of a standard armchair (seat height of approximately 46 cm [18.4 in.]), walks a distance of 3 m (10 ft.), turns, walks back to the chair and sits down again. The patient wears regular footwear and, if applicable, uses any customary walking aid (e.g., cane or walker). No physical assistance is given. The physician uses a stopwatch or a wristwatch with a second hand to time this activity. A score of 30 seconds or greater indicates that the patient has impaired mobility and requires assistance (i.e., has a high risk of falling). This test has been shown to be as valid as sophisticated gait testing. TABLE 6
Timed "Up & Go" Test
Get up out of a standard armchair (seat height of approximately 46 cm [18.4 in.]), walk a distance of 3 m (10 ft.), turn, walk back to the chair and sit down again. Ambulate with or without assistive device and follow a three-step command. One practice trial and then three actual trials. The times from the three actual trials are averaged. Armchair, stopwatch (or wristwatch with a second hand) and a measured path Adapted with permission from Podsiadlo D, Richardson S. The timed "Up & Go": a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc 1991;39:142-8. A simpler alternative is the "Get-Up and Go" test.32 In this test, the patient is seated in an armless chair placed 3 m (10 ft.) from a wall. The patient stands, walks toward the wall (using a walking aid if one is typically employed), turns without touching the wall, returns to the chair, turns and sits down. This activity does not need to be timed. Instead, the physician observes the patient and makes note of any TABLE 7
Interventions to Reduce the Risk of Falls in the Elderly
Risk factors
Interventions
Behavioral recommendations, such as ankle pumps or hand systolic blood pressure of >=20 mm clenching and elevation of the head of the bed Hg or to <90 mm Hg on standing Decrease in the dosage of a medication that may contribute to hypotension; if necessary, discontinuation of the drug or substitution of another medication Pressure stockings If indicated, fludrocortisone (Florinef), in a dosage of 0.1 mg two or three times daily, to increase blood pressure If indicated, midodrine (ProAmatine), in a dosage of 2.5 to 5 mg three times daily, to increase vascular tone and blood pressure Education about appropriate use of sedative-hypnotic drugs Nonpharmacologic treatment of sleep problems, such as sleep restriction Tapering and discontinuation of medications Environmental hazards for falling or Home safety assessment with appropriate changes, such as tripping removal of hazards, selection of safer furniture (correct height, more stability) and installation of structures such as grab bars in bathrooms or handrails on stairs Gait training Use of an appropriate assistive device Balance or strengthening exercises if indicated Balance exercises and training in transfer skills if indicated Environmental alterations, such as installation of grab bars or raised toilet seats Exercises with resistive bands and putty resistance training two or three times a week, with resistance increased when the patient is able to complete 10 repetitions through the full range of motion Adapted with permission from Tinetti ME, Baker DI, McAvay G, Claus EB, Garrett P, Gottschalk M, et al. A multifactorial intervention to reduce the risk of falling among elderly people living in the community. N Engl J Med 1994;331:821-7. In watching patients perform the "Up & Go" test or the "Get-Up and Go" test, the physician should consider the following questions: How safe does this activity appear for this patient? Are there any tip- offs to remediable causes of impaired mobility? TABLE 8
Critical Steps in Reducing the
Risk of Falls in the Elderly
Eliminate environmental hazards. Improve home supports. Provide opportunities for socialization and encouragement. Modify medication. Provide balance training. Modify restraints. Overall physical function should also be assessed. This is accomplished by evaluating the patient's ADLs and instrumental activities of daily living (IADLs). An Adapted with permission from Speechley M, alternative is the Physical Performance Test (PPT).33 This Tinetti M. Falls and injuries in frail and vigorous community elderly persons. J Am performance-based test includes seven usual daily activities. The patient is asked to write a sentence, lift a book, put on and take off a jacket, pick up a penny, turn 360 degrees and walk about 15 m (50 ft.). The physician evaluates the performance of these activities to determine whether the patient is at increased risk for recurrent falls. If a problem is detected, the physician should institute measures to prevent falls, such as reducing medications (when possible), improving environmental safety and encouraging exercise that improves balance. Prevention of Falls
When the cause of a fall is not determined or a patient remains at high risk for falls, referral to a falls prevention program may be warranted. Recent studies have shown that such programs can reduce the rate of falls in the elderly. In one study,34 the interactive group had a relative risk of falling of 0.39 compared with the control group. Interventions included the modification of environmental hazards and the evaluation and treatment of blood pressure, vision problems and mental status changes, including depression. Interventions that may be successful in reducing falls are listed in Table 7.22 An outpatient assessment using the tools outlined in this article can allow the primary care physician to identify risk factors quickly and accurately, and to assess the patient who has fallen or nearly fallen. Critical steps in reducing the risk of falls in the elderly are listed in Table 8.28 Members of various family practice departments develop articles for "Problem-Oriented Diagnosis." This article is one in a series coordinated by the Department of Family Medicine at the Uniformed Services University of the Health Sciences, Bethesda, Md. Guest editors of the series are Francis G. O'Connor, LTC, MC, USA, and Jeannette E. South-Paul, COL, MC, USA. The opinions and assertions contained herein are the private views of the author and are not to be construed as official or as reflecting the views of the Army Medical Department or the Army Service at The Author
is currently White House physician and deputy director for clinical operations. He is also assistant professor of family medicine at the Uniformed Services University of the Health Sciences F. Edward Hébert School of Medicine, Bethesda, Md., where he earned his medical degree. Dr. Fuller completed a residency in family practice at Hays Army Hospital, Fort Ord, Calif., and a fellowship in geriatric medicine at American Lake Veterans Affairs Medical Center, Tacoma, Wash. Address correspondence to George F. Fuller, COL, MC, USA, Old Executive Office Building, Room 105, 17th and Pennsylvania Ave. NW, Washington, DC 20502-0041. Reprints are not available from the Burt CW, Fingerhut LA. Injury visits to hospital emergency departments: United States, 1992-95. Vital Runge JW. The cost of injury. Emerg Med Clin North Am 1993;11:241-53. Weigelt JA. Trauma. In: Advanced trauma life support for doctors: ATLS. 6th ed. Chicago: American Greenhouse AH. Falls among the elderly. 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Mobility failure. In: Protocols in primary care geriatrics. 2d ed. New York: Springer, 1997:33-8. Studenski S, Wolter L. Instability and falls. In: Duthie EH Jr, Katz PR, eds. Practice of geriatrics. 3d ed. Tinetti ME, Doucette J, Claus E, Marottoli R. Risk factors for serious injury during falls by older persons in the community. J Am Geriatr Soc 1995; 43:1214-21. Tinetti ME, Baker DI, McAvay G, Claus EB, Garrett P, Gottschalk PT, et al. A multifactorial intervention to reduce the risk of falling among elderly people living in the community. N Engl J Med 1994; 331:821-7. Rubenstein LZ. Falls. In: Yoshikawa TT, Cobbs EL, Brummel-Smith K, eds. Ambulatory geriatric care. St. Svensson ML, Rundgren A, Larsson M, Oden A, Sund V, Landahl S. Accidents in the institutionalized elderly: a risk analysis. Aging [Milano] 1991; 3:181-92. Wells BG, Middleton B, Lawrence G, Lillard D, Safarik J. Factors associated with the elderly falling in intermediate care facilities. Drug Intell Clin Pharm 1985;19:142-5. Thapa PB, Gideon P, Cost TW, Milam AB, Ray WA. Antidepressants and the risk of falls among nursing home residents. N Engl J Med 1998;339:875-82. Kiel DP. The evaluation of falls in the emergency department. Clin Geriatr Med 1993;9:591-9. Speechley M, Tinetti M. Falls and injuries in frail and vigorous community elderly persons. J Am Geriatr Steinweg KK. The changing approach to falls in the elderly. Am Fam Physician 1997;58:1815-23. Vellas BJ, Wayne SJ, Romero L, Baumgartner RN, Rubenstein LZ, Garry PJ. One-leg balance is an important predictor of injurious falls in older persons. J Am Geriatr Soc 1997;45:735-8. Podsiadlo D, Richardson S. The timed "Up & Go": a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc 1991;39:142-8. Mathias S, Nayak US, Isaacs B. Balance in elderly patients: the "get-up and go" test. Arch Phys Med VanSwearingen JM, Paschal KA, Bonino P, Chen TW. Assessing recurrent fall risk of community- dwelling, frail older veterans using specific tests of mobility and the physical performance test of function. J Gerontol A Biol Sci Med Sci 1998;53: M457-64. Close J, Ellis M, Hooper R, Glucksman E, Jackson S, Swift C. Prevention of falls in the elderly trial (PROFET): a randomised controlled trial. Lancet 1999;353:93-7. Copyright 2000 by the American Academy of Family Physicians. This content is owned by the AAFP. A person viewing it online may make one printout of the material and may use that printout only for his or her personal, non-commercial reference. This material may not otherwise be downloaded, copied, printed, stored, transmitted or reproduced in any medium, whether now known or later invented, except as authorized in writing by the AAFP. Cont for copyright questions and/or

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