Why is Geriatric Care so Hard? Atypical Syndromes You Need to Understand in Older Patients

Geriatric emergency care is hard because older adults often present with syndromes, not single complaints. Falls are usually multifactorial, delirium is common and frequently missed, and acute coronary syndrome in older patients often arrives without chest pain.

Falls, Mobility, and Safe Disposition

• Multifactorial fall syndrome: A so-called mechanical fall is usually a syndrome driven by sensory loss, neuropathy, polypharmacy, cognitive impairment, or infection, so the cause matters as much as the injury.
• Index fall evaluation: A first fall should trigger questions about prior falls, mobility, assistive devices, and home safety because recurrent falls often signal an occult medical or functional decline.
• ED therapy consultation: PT or OT involvement during the ED visit can change the trajectory; index-visit therapy assessment has been associated with a 30% to 60% drop in 30-day revisits.
• Discharge safety planning: Older adults often sit in the gap between admission and unsafe discharge, making walkers, home PT, transportation, and rapid follow-up central to the real disposition plan. We get into practical disposition options in the episode.

Delirium in Older ED Patients

• Acute brain dysfunction: Delirium is acute brain dysfunction marked by inattention, altered consciousness, and waxing-waning mental status rather than simple confusion or baseline dementia.
• High-stakes missed diagnosis: Delirium is present in about 7% to 10% of older ED patients, missed up to 75% of the time, and independently predicts higher 6-month mortality.
• Hypoactive delirium trap: The quiet patient who is sleepy, withdrawn, or not asking for anything may have hypoactive delirium, the most common subtype and the easiest one to miss.
• Structured screening tools: The Delirium Triage Screen and Brief Confusion Assessment Method give teams a shared bedside language for detection. We walk through where they fit in the episode.
• Collateral history importance: Family, caregivers, and facilities often provide the key distinction between chronic cognitive impairment and an acute change, which is essential before anchoring on the chief complaint.

Atypical Acute Coronary Syndrome

• Chest pain absence: Older adults with ACS often do not have chest pain; among patients 85 and older, 40% of STEMIs and 60% of NSTEMIs presented without it.
• Symptom reframing: Dyspnea, syncope, weakness, altered mental status, upper extremity pain, abdominal pain, or nausea may be the ischemic presentation, so typical-versus-atypical language can mislead.
• Broader triage ECG triggers: Expanding immediate ECG criteria by age and symptom pattern improves early STEMI capture, with one rule reaching 92% sensitivity. We cover the triage logic in the chapter.
• Bias toward definitive care: A chief complaint other than chest pain delays ECGs and reperfusion, yet older adults account for 65% of STEMIs and 80% of MI deaths, so treatment cannot wait for classic symptoms.

References:

1. Lesser A, Israni J, Kent T, Ko KJ. Association Between Physical Therapy in the Emergency Department and Emergency Department Revisits for Older Adult Fallers: A Nationally Representative Analysis. J Am Geriatr Soc. PMID: 30132800
2. Han JH, Wilson A, Vasilevskis EE, et al. Diagnosing delirium in older emergency department patients: validity and reliability of the delirium triage screen and the brief confusion assessment method. Ann Emerg Med. 2013;62(5):457-465. PMID: 23916018
3. McGarry M, Shenvi CL. Identification of Acute Coronary Syndrome in the Elderly. Emerg Med Clin North Am. 2021;39(2):339-346. PMID: 33863463
4. Glickman SW, Shofer FS, Wu MC, et al. Development and validation of a prioritization rule for obtaining an immediate 12-lead electrocardiogram in the emergency department to identify ST-elevation myocardial infarction. Am Heart J. 2012;163(3):372-382. PMID:2242007