Prehospital Academy Lesson 41.4
Trauma and Abuse in the Elderly
The geriatric trauma patient represents one of the most significant challenges in emergency medicine. Due to a narrowing of Homeostatic Reserve and the prevalence of Polypharmacy, the elderly can sustain life-threatening injuries from mechanisms that would be trivial in younger patients. Mastery of this topic requires the EMT to integrate kinematic analysis with forensic awareness of elder abuse and neglect.
The "Silver Tsunami" and Trauma Systems
As the population ages, "Geriatric Trauma" is becoming a distinct sub-specialty. The Silver Tsunami refers to the rapid increase in the number of elderly patients requiring emergency services. Unlike pediatric trauma, which often involves healthy bodies, geriatric trauma involves bodies with pre-existing multi-organ dysfunction, making the "Trauma Triad of Death" (Coagulopathy, Acidosis, and Hypothermia) much harder to reverse.
Hemodynamic Masking and the "Normal" Vital Sign Trap
In the elderly, vital signs are often "liars."
The Beta-Blocker Blunting: Metoprolol and other beta-blockers "cap" the heart rate. A patient in class III shock (1500mL blood loss) may have a heart rate of 75 bpm because their medication prevents the compensatory tachycardia.
Hypertension as a Baseline: If a patients chronic BP is 180/100, a "textbook" BP of 120/80 is actually a sign of Relative Hypotension and impending hypoperfusion.
Pulse Pressure: A narrowing pulse pressure (e.g., 100/85) is an earlier indicator of shock than the systolic blood pressure alone.
Neurological Vulnerability: The Chronic Subdural
Age-related Brain Atrophy creates significant "dead space" within the cranial vault. This puts the Bridging Veins under constant tension.
The 14-Day Time Bomb: A minor fall can shear these veins, causing a slow venous leak. Because there is room for the blood to pool, symptoms such as confusion, gait disturbances, or personality changes may not manifest for two weeks. In any elderly patient with new-onset "dementia," the EMT must ask: "Have they fallen in the last month?"
Forensic Perspectives: Recognizing Elder Abuse
Elder abuse is often silent. EMTs are mandatory reporters and must look for patterns of injury that do not match the reported mechanism.
The EASI (Elder Abuse Screening Instrument) Concepts:
Suspicious Bruising: Bruises on the neck, ears, genitals, or inner thighs are almost never accidental. Bruises in various stages of healing suggest a chronic pattern of violence.
Neglect: Indicators include untreated pressure ulcers (bedsores), dehydration, and unmanaged medical conditions (e.g., a "brittle" diabetic whose insulin hasn't been filled in months).
Social Isolation: If a caregiver refuses to let you speak to the patient alone or "over-explains" the injuries, your index of suspicion should escalate.
Osteoporosis and Rib Fractures: The Pneumonia Pathway
A simple rib fracture in the elderly is a high-mortality event. Because of Osteoporosis, ribs break easily. The resulting pain causes "splinting" (shallow breathing), which leads to Atelectasis (collapsed alveoli) and subsequent Pneumonia.
Assessment: Critical Thinking Questions
Explain how **Brain Atrophy** alters the clinical presentation of a Subdural Hematoma compared to an Epidural Hematoma.
A 75-year-old patient falls and has a BP of 110/70. Their baseline is 160/90. Calculate the percentage drop in Mean Arterial Pressure (MAP) and justify why this patient is in shock.
Define the **Trauma Triad of Death**. Why are elderly patients more susceptible to hypothermia even in a room-temperature environment?
You find finger-shaped bruises on the upper arms of an elderly woman. The son says she "bumps into things." How do you document this discrepancy without being accusatory on scene?
Describe the "Pneumonia Pathway" following a geriatric rib fracture. What field intervention (specifically regarding pain and positioning) can help mitigate this risk?