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Decreased Body Temperature

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...

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Related Experiment Video

Updated: Jun 20, 2025

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Published on: November 21, 2017

Temperature Control Parameters Are Important: Earlier Preinduction Is Associated With Improved Outcomes Following

Rachel Beekman¹, Noah Kim², Christine Nguyen¹

¹Department of Neurology, Yale School of Medicine, New Haven, CT.

Annals of Emergency Medicine

|July 21, 2024

Summary

Rapid temperature control initiation after cardiac arrest improves patient outcomes. Starting temperature management within 3 hours of hospital arrival is linked to better neurological recovery and survival rates in out-of-hospital cardiac arrest (OHCA) patients.

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Area of Science:

Emergency Medicine
Critical Care Medicine
Neuroscience

Background:

Temperature control trials in cardiac arrest patients have yielded inconsistent neuroprotective benefits due to variable treatment parameters.
The impact of pre-initiation time on temperature control effectiveness remains unclear.

Purpose of the Study:

To assess the association between pre-induction time and clinical outcomes in out-of-hospital cardiac arrest (OHCA) patients.
To determine if earlier initiation of temperature control improves neurological function and survival.

Main Methods:

Retrospective study of 347 OHCA patients treated with temperature control between 2014-2022.
Defined pre-induction time as door to temperature control initiation; early initiation was <3 hours.
Logistic regression and inverse probability treatment weighting were used to analyze outcomes (neurologic function, survival).

Main Results:

Early initiation (<3 hours) was observed in 21.6% of patients (median time 2.5 hours).
Late initiation (>3 hours) was seen in 78.4% of patients (median time 5.18 hours).
Early temperature control initiation was significantly associated with improved neurologic outcome and survival, even after adjusting for confounding factors.

Conclusions:

Shorter pre-induction time for temperature control in OHCA patients correlates with better neurologic outcomes and survival.
Early initiation of temperature control in the emergency department may confer significant clinical benefits.
Further prospective trials are needed to validate these hypothesis-generating findings.