Hemodynamic Fragility
Increased vulnerability to circulatory instability with minor physiologic perturbations, common in elderly cardiac patients.
Full Definition
Hemodynamic fragility describes the reduced physiologic reserve and increased susceptibility to circulatory compromise in elderly patients with cardiovascular disease when exposed to relatively minor stressors such as dehydration, medication changes, or mild infections. This condition results from age-related changes in cardiac output reserve, vascular reactivity, and autonomic function. Patients with hemodynamic fragility may experience significant drops in blood pressure, reduced organ perfusion, or cardiac decompensation with stressors that would be well-tolerated by younger individuals. Recognition of this fragility is crucial for appropriate monitoring intensity and intervention timing.
Usage
Usage note: Distinguish from 'frailty' which encompasses broader physical and cognitive domains.
In Context
- "The patient's hemodynamic fragility necessitated careful fluid management during the perioperative period." — Anesthesia consultation
- "Given the patient's hemodynamic fragility, we recommend avoiding medications that may cause hypotension." — Geriatric medicine consultation