Geriatric trauma | |
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Medical personnel attend to geriatric trauma patient. | |
Specialty | Emergency medicine |
Geriatric trauma refers to a traumatic injury that occurs to an elderly person. People around the world are living longer than ever. In developed and underdeveloped countries, the pace of population aging is increasing. By 2050, the world's population aged 60 years and older is expected to total 2 billion, up from 900 million in 2015. [1] While this trend presents opportunities for productivity and additional experiences, it also comes with its own set of challenges for health systems. More so than ever, elderly populations are presenting to the Emergency Department following traumatic injury. [2] In addition, given advances in the management of chronic illnesses, more elderly adults are living active lifestyles and are at risk of traumatic injury. In the United States, this population accounts for 14% of all traumatic injuries, of which a majority are just mainly from falls. [3]
Trauma is a leading cause of morbidity and mortality across all age groups, however, geriatric populations are unique compared to younger counterparts in the amount of existing health issues and inherent risk of disability and death. [4] As a whole, older populations are more vulnerable to trauma from minor mechanisms of injury and less able to recover following injury. [5] At the same time, medications to manage existing chronic conditions and co-morbidities may negatively affect older adults’ physiological responses to traumatic injuries and increase the risk for complications later on. [6]
A progressive decline in central nervous system function leads to a loss of proprioception, balance and overall motor coordination, as well as a reduction in eye–hand coordination, reaction time and an unsteady gait. [7] These degenerative changes are often accompanied by osteoarthritis (degenerative joint disease), which leads to a reduction in the range of motion of the head, neck and extremities. Furthermore, elderly people frequently take multiple medications for control of various diseases and conditions. The side effects of some of these medications may either predispose to injury, or may cause a minor trauma to result in a much more severe condition. For example, a person taking warfarin (Coumadin) and/or clopidogrel (Plavix) may experience a life-threatening intracranial hemorrhage after sustaining a relatively minor closed head injury, as a result of the defect in the hemostatic mechanism caused by such medications. The combined effects of these changes greatly predisposes elderly people to traumatic injury. Both the incidence of falls and the severity of associated complications increase with advancing age. [7]
Virtually all organ systems experience a progressive decline in function as a result of the aging process. [8] [9] One example is a decline in circulatory system function caused in part by thickening of the cardiac muscle. This can lead to congestive heart failure or pulmonary edema. [10] [11] Another example is the decline in muscle mass, which although highly variable among individuals, rapidly speeds up in older age and can decreases up to 50% when compared to the weight of the individual. [12] This loss of muscle mass can compromise the elderly adult's ability to maintain a straight posture. [13]
Atrophy of the brain begins to accelerate at around seventy years of age, [11] which leads to a significant reduction in brain mass. Since the skull does not decrease in size with the brain, there is significant space between the two when this occurs which puts the elderly at a higher risk of a subdural hematoma after sustaining a closed head injury. [9] The reduction of brain size can lead to issues with eyesight, cognition and hearing. [11]
Because falls are the most common mechanism of injury in severely injured geriatric patients, [14] the risk factors for geriatric trauma overlap significantly with those that predispose older adults to falls. Falls may often be described as “mechanical” or “non-mechanical.” A “mechanical fall” implies that an object or force in the patient's external environment caused the fall to occur. However, the use of this term may result in a failure to conduct a thorough evaluation of intrinsic factors related to the fall. Even in cases of community-dwelling older adults experiencing falls related to slipping, tripping, or stumbling, the patients’ co-morbidities and health status are often involved. In addition, a proportion of patients with reported “non-mechanical falls” have been shown to have environmental factors. [15] For this reason, it is crucial to consider the interactions between environmental hazards and increased individual susceptibility from the accumulated effects of intrinsic risk factors when evaluating why a fall occurred in an older adult.
From a meta-analysis examining risk factors for falls in both community-dwelling and institutionalized populations, the most common intrinsic determinants of falls risks include: [16]
Other important intrinsic risk factors for falls indicated by other studies include peripheral nerve dysfunction with postural instability, [17] use of sedatives, hypnotics, antidepressants, benzodiazepines, [18] and vasodilators, [19] and history of problem drinking. [20]
Lastly, in one study, home modifications like adding handrails for outside and inside stairs, grab rails for bathrooms, outdoor lighting, and slip-resistant floors was shown to cause a 26% reduction in the rate of injuries caused by falls at home per year compared to a control group without these interventions. This demonstrates the value in creating a more accommodating and safe home environment for a community-dwelling elder, especially if they have several intrinsic risk factors for falls. [21] Another study found a lower risk of falls associated with wearing athletic shoes and canvas shoes compared to other types of footwear including slippers, sandals, and high heels. [22]
Motor vehicle crashes are the second most frequent mechanism of injury to explain trauma in older adults. [23] Risk factors that affect driving performance in older adults include:
Although the survivability of burn injuries continues to improve across all age groups, this improvement may be less for older burn victims. This observation may be attributable to a greater degree of co-morbidities and slow wound healing that result in an increased length of stay and higher mortality in the elderly compared to patients less than 60 years. [31] Therefore, it is important to recognize and address risk factors that predispose older adults to burns.
Factors that increase the risk of incurring burn injury in older adults include:
Geriatric trauma may be caused by elder physical, emotional, or sexual abuse, resulting in an increased risk of death at the end of a 13-year follow-up period in one study. [35] According to a published uniform definition from the National Center for Injury Prevention and Control, Division of Violence Prevention, elder abuse is “an intentional act or failure to act by a caregiver or another person in a relationship involving an expectation of trust that causes or creates a risk of harm to an older adult.” [36]
To prevent or identify patients who may experience elder abuse, it is crucial to identify which older adults are at an increased risk. Some findings correlated with risk of elder mistreatment are presented below:
Falls and motor vehicle crashes are the most common types of injuries among geriatric adults. As a whole, older populations are more vulnerable to mortality from all causes of trauma given that they are less able to compensate following injury. [5]
Falls account for three-quarters of all trauma in this population. [14] In one review, the estimated probability of falling at least once in any given year for individuals 65 years and older was 27%. [41] One out of five falls causes a serious injury such as broken bones or a head injury. [42] In the United States, over 800,000 patients a year are hospitalized because of a fall injury, most often because of a head injury or hip fracture. [43]
Motor vehicle crashes are the second most common mechanism of injury among geriatric adults, and the most common cause of traumatic mortality. [44] Of the possible injuries, older adults are especially at risk of chest injuries (such as rib fractures) which may negatively interact with existing cardiopulmonary comorbidities—increasing the risk of complications like pneumonia and respiratory failure. [45] In addition, the highest mortality rate in geriatric trauma is among older pedestrians struck by a vehicle.
Burns are also especially dangerous in geriatric populations. Relating back to physiology, comorbidities and slow wound healing can result in an increase length of stay, and higher mortality in the elderly compared to patients less than 60 yr of age. [46]
Falls are the most common cause of injury in older adults. According to the Behavior Risk Factor Surveillance System in 2018, approximately 28 percent of individuals aver 65 years old reported a fall within the last year. This would account for approximately 36 million falls, of which approximately 8.4 million resulted in injuries. [47] These falls are often underreported and can significantly threaten the individual's independence.
Every year, about 5 percent of falls result in hospitalizations in the geriatric population. These injuries lead to an increase in morbidity and a greater likelihood that they will be admitted to a nursing home. [48] Approximately 95 percent of all hip fractures reported are due to an unforeseen fall and 25-75 percent of those do not recover fully to the mobility they had prior to the fall. [49] Of those older adults who fall, only about half are able to stand back up on their own, the other half experience a “long lie” which makes them more likely to experience a steeper decline on their activities of daily living than those who are able to stand back up on their own. [50] Furthermore, the medical complications arising from these falls make it so that they become the leading cause of death from injury in populations over 65 years old and fifth overall cause of death.
As a result of a fall, older adults can also experience post-fall anxiety syndrome. This fear of falling was present in 60 percent of community dwelling geriatric populations, and was demonstrated by their reduction in levels of activity; 15 percent of which severely restricted their mobility out of fear of having another fall. [51] This further contributes to morbidity because it can contribute to cognitive impairment, depression, isolation, increase in rates of obesity, and further mobility impairment.
The geriatric population is at increased risk for burn injury. While geriatric burns account for less than 5% of burns in developing countries, nearly 20% of burns in developed countries are experienced by the geriatric population. These burn injuries tend to occur at home—particularly in the kitchen or the bathroom—and most commonly consist of flame and scald burns.
Importantly, geriatric patients are at increased risk for downstream complications. This is in part due to limited mobility, decreased ability to react rapidly to threats, and pre-existing medical problems such as vision impairment and medication side effects. Additionally, due to the natural processes of aging, the skin of geriatric patients has impaired mechanisms to protect against burns, including impaired neurosensory sensitivity, skin permeability, and regeneration capacity. These impairments lead to deeper wounds, prolonged wound healing, and lower potential for complete recovery.
Fluid resuscitation and pain control are key components of burn treatment. In the geriatric population, extra care must be paid to provide appropriate fluids, as age is significantly associated with increased volume requirement in the first 48 hours post-injury. Additionally, geriatric patients are often not provided with adequate pain control management, in part due to a misconception that pain decreases with age (there is no evidence to support this claim). Appropriate pain management is critical for recovery, and must consider patients' co-morbidities, organ functions, and current medications.
Skin-grafting is another important form of treatment for burns. However, age is a risk factor for unsuccessful grafting due to the natural thinning of the skin that occurs with age. Other risk factors for failed skin relevant to the geriatric population for unsuccessful skin grafting include being over age 55, peripheral vascular disease, diabetes mellitus, and related problems of limb ischemia.
Studies suggest that few geriatric patients return to their previous state of health following burn injury. Long-term consequences in this population include exacerbation of pre-existing conditions, decreased mobility, loss of independence, worsened nutrition, pain, and psychological sequelae including depression.
One significant problem in the acute assessment of geriatric trauma patients is under-triage. Trauma team activation (TTA) must be done liberally due to limited costs and resources. Therefore, the criteria for TTA is established by the American College of Surgeons and individual trauma centers. The criteria used to identify patients with a greater need for high level care include vital signs (systolic blood pressure below 90 mmHg or heart rate above 120 bpm), level of consciousness, and mechanism of injury. However, elderly patients with severe trauma often do not meet the standard TTA criteria due to normal age-related changes and reduced physiologic capacities. For example, older adults have a less profound tachycardic response to hemorrhage, pain, or anxiety following trauma. This explains why mortality increases in the elderly above a heart rate of 90 bpm, an association not observed until heart rate of 130 bpm in younger patients. Similarly, in older adults, systemic vascular resistance is increased, which may result in baseline hypertension. In the setting of shock, expected declines in blood pressure may not occur, leading to misinterpretation of the geriatric patient's condition. This supports why mortality significantly increases with systolic blood pressure below 110 mmHg in older adults but not until 95 mmHg in younger patients. [53] [54] This is why several centers and studies support using older age as a TTA criterion as a means to reduce mortality in this population, regardless of the mechanism of injury. [55]
Delirium is a specific state of acute confusion attributable to the direct physiological consequence of a medical condition, effects of a psychoactive substance, or multiple causes, which usually develops over the course of hours to days. As a syndrome, delirium presents with disturbances in attention, awareness, and higher-order cognition. People with delirium may experience other neuropsychiatric disturbances, including changes in psychomotor activity, disrupted sleep-wake cycle, emotional disturbances, and perceptual disturbances, although these features are not required for diagnosis.
Geriatrics, or geriatric medicine, is a medical specialty focused on providing care for the unique health needs of older adults. The term geriatrics originates from the Greek γέρων geron meaning "old man", and ιατρός iatros meaning "healer". It aims to promote health by preventing, diagnosing and treating disease in older adults. There is no defined age at which patients may be under the care of a geriatrician, or geriatric physician, a physician who specializes in the care of older people. Rather, this decision is guided by individual patient need and the caregiving structures available to them. This care may benefit those who are managing multiple chronic conditions or experiencing significant age-related complications that threaten quality of daily life. Geriatric care may be indicated if caregiving responsibilities become increasingly stressful or medically complex for family and caregivers to manage independently.
Major trauma is any injury that has the potential to cause prolonged disability or death. There are many causes of major trauma, blunt and penetrating, including falls, motor vehicle collisions, stabbing wounds, and gunshot wounds. Depending on the severity of injury, quickness of management, and transportation to an appropriate medical facility may be necessary to prevent loss of life or limb. The initial assessment is critical, and involves a physical evaluation and also may include the use of imaging tools to determine the types of injuries accurately and to formulate a course of treatment.
Polypharmacy (polypragmasia) is an umbrella term to describe the simultaneous use of multiple medicines by a patient for their conditions. Most commonly it is defined as regularly taking five or more medicines but definitions vary in where they draw the line for the minimum number of drugs. Polypharmacy is often the consequence of having multiple long-term conditions, also known as multimorbidity. An excessive number of medications is worrisome, especially for older patients with many chronic health conditions, because this increases the risk of an adverse event in those patients.
The mini–mental state examination (MMSE) or Folstein test is a 30-point questionnaire that is used extensively in clinical and research settings to measure cognitive impairment. It is commonly used in medicine and allied health to screen for dementia. It is also used to estimate the severity and progression of cognitive impairment and to follow the course of cognitive changes in an individual over time; thus making it an effective way to document an individual's response to treatment. The MMSE's purpose has been not, on its own, to provide a diagnosis for any particular nosological entity.
Aspiration pneumonia is a type of lung infection that is due to a relatively large amount of material from the stomach or mouth entering the lungs. Signs and symptoms often include fever and cough of relatively rapid onset. Complications may include lung abscess, acute respiratory distress syndrome, empyema, and parapneumonic effusion. Some include chemical induced inflammation of the lungs as a subtype, which occurs from acidic but non-infectious stomach contents entering the lungs.
A hip fracture is a break that occurs in the upper part of the femur, at the femoral neck or (rarely) the femoral head. Symptoms may include pain around the hip, particularly with movement, and shortening of the leg. Usually the person cannot walk.
Sarcopenia is a type of muscle loss that occurs with aging and/or immobility. It is characterized by the degenerative loss of skeletal muscle mass, quality, and strength. The rate of muscle loss is dependent on exercise level, co-morbidities, nutrition and other factors. The muscle loss is related to changes in muscle synthesis signalling pathways. It is distinct from cachexia, in which muscle is degraded through cytokine-mediated degradation, although both conditions may co-exist. Sarcopenia is considered a component of frailty syndrome. Sarcopenia can lead to reduced quality of life, falls, fracture, and disability.
Fall prevention includes any action taken to help reduce the number of accidental falls suffered by susceptible individuals, such as the elderly (idiopathic) and people with neurological or orthopedic indications.
Gerontological nursing is the specialty of nursing pertaining to older adults. Gerontological nurses work in collaboration with older adults, their families, and communities to support healthy aging, maximum functioning, and quality of life. The term gerontological nursing, which replaced the term geriatric nursing in the 1970s, is seen as being more consistent with the specialty's broader focus on health and wellness, in addition to illness.
Frailty is a common geriatric syndrome that embodies an elevated risk of catastrophic declines in health and function among older adults. Frailty is a condition associated with ageing, and it has been recognized for centuries. It is a marker of a more widespread syndrome of frailty, with associated weakness, slowing, decreased energy, lower activity, and, when severe, unintended weight loss. As a frequent clinical syndrome in the elderly, various health risks are linked to health deterioration and frailty in older age, such as falls, disability, hospitalization, and mortality. Generally, frailty refers to older adults who lose independence. It also links to the experiences of losing dignity due to social and emotional isolation risk. Frailty has been identified as a risk factor for the development of dementia.
Falls in older adults are a significant cause of morbidity and mortality and are a major class of preventable injuries. Falling is one of the most common accidents that cause a loss in the quality of life for older adults, and is usually precipitated by a loss of balance and weakness in the legs. The cause of falling in old age is often multifactorial and may require a multidisciplinary approach both to treat any injuries sustained and to prevent future falls. Falls include dropping from a standing position or from exposed positions such as those on ladders or stepladders. The severity of injury is generally related to the height of the fall. The state of the ground surface onto which the victim falls is also important, harder surfaces causing more severe injury. Falls can be prevented by ensuring that carpets are tacked down, that objects like electric cords are not in one's path, that hearing and vision are optimized, dizziness is minimized, alcohol intake is moderated and that shoes have low heels or rubber soles.
Falling is the action of a person or animal losing stability and ending up in a lower position, often on the ground. It is the second-leading cause of accidental death worldwide and a major cause of personal injury, especially for the elderly. Falls in older adults are a major class of preventable injuries. Construction workers, electricians, miners, and painters are occupations with high rates of fall injuries.
Late-life depression refers to depression occurring in older adults and has diverse presentations, including as a recurrence of early-onset depression, a new diagnosis of late-onset depression, and a mood disorder resulting from a separate medical condition, substance use, or medication regimen. Research regarding late-life depression often focuses on late-onset depression, which is defined as a major depressive episode occurring for the first time in an older person.
The correlation between old age and driving has been a notable topic for many years. In 2018, there were over 45 million licensed drivers in the United States over the age of 65—a 60% increase from 2000. Driving is said to help older adults stay mobile and independent, but as their age increases the risk of potentially injuring themselves or others significantly increases as well. In 2019, drivers 65 years and older accounted for 8,760 motor vehicle traffic deaths, and 205,691 non-fatal accidents. Due to their physical frailty, older drivers are more likely to be injured in an accident and more likely to die of that injury. When frailty is accounted for and older drivers are compared to younger persons driving the same amount the over-representation disappears. According to the Insurance Institute for Highway Safety, a senior citizen is more likely than a younger driver to be at fault in an accident in which they are involved. The most common violations include: failure to obey traffic signals, unsafe turns and passing, and failure to yield.
Trauma in children, also known as pediatric trauma, refers to a traumatic injury that happens to an infant, child or adolescent. Because of anatomical and physiological differences between children and adults the care and management of this population differs.
Renal angina is a clinical methodology to risk stratify patients for the development of persistent and severe acute kidney injury (AKI). The composite of risk factors and early signs of injury for AKI, renal angina is used as a clinical adjunct to help optimize the use of novel AKI biomarker testing. The term angina from Latin and from the Greek ankhone ("strangling") are utilized in the context of AKI to denote the development of injury and the choking off of kidney function. Unlike angina pectoris, commonly caused due to ischemia of the heart muscle secondary to coronary artery occlusion or vasospasm, renal angina carries no obvious physical symptomatology. Renal angina was derived as a conceptual framework to identify evolving AKI. Like acute coronary syndrome which precedes or is a sign of a heart attack, renal angina is used as a herald sign for a kidney attack. Detection of renal angina is performed by calculating the renal angina index.
Geriatric psychology is a subfield of psychology that specializes in the mental and physical health of individuals in the later stages of life. These specialized psychologists study a variety of psychological abilities that deplete as aging occurs such as memory, learning capabilities, and coordination. Geriatric psychologists work with elderly clients to conduct the diagnosis, study, and treatment of certain mental illnesses in a variety of workplace settings. Common areas of practice include loneliness in old age, depression, dementia, Alzheimer's disease, vascular dementia, and Parkinson's disease.
Psychological trauma in adultswho are older, is the overall prevalence and occurrence of trauma symptoms within the older adult population.. This should not to be confused with geriatric trauma. Although there is a 90% likelihood of an older adult experiencing a traumatic event, there is a lack of research on trauma in older adult populations. This makes research trends on the complex interaction between traumatic symptom presentation and considerations specifically related to the older adult population difficult to pinpoint. This article reviews the existing literature and briefly introduces various ways, apart from the occurrence of elder abuse, that psychological trauma impacts the older adult population.
In medicine, the Comorbidity–polypharmacy score (CPS) is a measure of overall severity of comorbidities. It is defined as the simple sum of the number of known comorbidities and pre-admission medications taken by the patient (polypharmacy), as a surrogate for the “intensity” of the comorbidities.
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