Nursing Home Elopement & Hypothermia Death Case

Case Overview

An elderly patient with documented cognitive impairment eloped from a supervised care facility in the early morning hours during near-freezing temperatures.

The patient was found in cardiac arrest after prolonged outdoor exposure, inadequately dressed for the conditions. Emergency Medicine expert witness, Dr. Terrell J. Swanson, MD, FAWM, was retained by the plaintiff to provide expert analysis of the medical causation of death.

The Medical Question

Retaining counsel required an opinion, to a reasonable degree of medical certainty, on whether hypothermia was a contributing cause of the patient’s cardiac arrest and death, and on the physiological progression of hypothermia under the documented environmental and patient-specific conditions.

Evidence Reviewed

Dr. Swanson reviewed Emergency Department records, EMS documentation, treating and attending physician depositions, fire department and police reports, official weather data for the date and location, and surveillance video footage.

The patient’s prior medical records and documented comorbidities were also considered.

Findings

Environmental conditions at the time of the event included temperatures near freezing with significant wind chill. The patient had no appropriate outerwear.

These conditions produced heat loss through conduction from ground contact, convection from wind exposure, and radiation (heat radiating off the body), all operating simultaneously and without protection.

The patient’s age placed him at elevated physiological risk. Thermoregulatory capacity diminishes with age, including reduced ability to generate heat through shivering, decreased lean body mass, and impaired autonomic response to cold stress. These are well-established factors in hypothermia susceptibility among elderly patients.

The first recorded core body temperature in the Emergency Department was 90.5 degrees Fahrenheit, measured after rewarming efforts had already begun.

This finding indicated that the patient’s core temperature at the time of cardiac arrest was substantially lower. A temperature of 90.5 following active rewarming is consistent with moderate to severe hypothermia preceding the arrest.

The mechanism of cardiac arrest was consistent with cold-induced cardiovascular instability. Progressive hypothermia causes peripheral vasoconstriction and pooling of cold, acidotic blood in the extremities.

When the patient was assisted to his feet, this cold blood was mobilized toward the core, producing what is clinically recognized as an after-drop in core temperature. Simultaneously, the patient’s cardiovascular system, already compromised by hypothermia, was unable to compensate for the positional change.

Ventricular fibrillation preceding asystole is a well-documented endpoint of severe hypothermia, and the temporal sequence here was consistent with that progression.

Alternative causes of death were addressed and found unsupported by the available evidence. Pulmonary embolism was unlikely given the patient’s anticoagulation status and inferior vena cava filter. Tension pneumothorax identified on imaging was consistent with CPR-related trauma rather than a precipitating cause.

Scope of Opinion

Dr. Swanson’s analysis addressed medical causation based on documented evidence. Opinions were grounded in the recorded clinical data, environmental conditions, established hypothermia pathophysiology, and his fellowship training (FAWM) and clinical experience with cold-related illness.

Factual questions outside the available record, including the precise duration of outdoor exposure, were acknowledged as indeterminate.

About Dr. Swanson

Dr. Terrell J. Swanson is a board-certified emergency medicine physician in full-time active clinical practice across Level 1 and Level 2 trauma centers, community hospitals, and rural emergency departments.

He holds a Fellowship with the Academy of Wilderness Medicine (FAWM), with specialized training in hypothermia, environmental injuries, and cold-related illness. Dr. Swanson provides objective expert witness services in Emergency Medicine and wilderness medicine cases for both plaintiff and defense counsel nationwide.