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Updated: Aug 4, 2026

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
Published on: November 21, 2017
Insights
Elderly patients with hypothermia face a starkly different prognosis based on its cause. Primary hypothermia in seniors leads to 100% 3-year mortality, while secondary hypothermia has a 24% rate.
Area of Science:
- Gerontology
- Internal Medicine
- Public Health
Background:
- Hypothermia is a serious condition, particularly in elderly populations.
- Understanding the long-term outcomes of different hypothermia types is crucial for geriatric care.
Purpose of the Study:
- To compare the long-term outcomes of primary versus secondary hypothermia in patients over 65.
- To identify prognostic factors influencing survival after hypothermia in the elderly.
Main Methods:
- Retrospective analysis of patients aged over 65 with hypothermia admitted to Victoria Infirmary, Glasgow (1977-1981).
- Categorization into primary and secondary hypothermia groups.
- Follow-up data collection for mortality rates, focusing on 3-year survival post-discharge.
Main Results:
- No significant differences in initial mortality, mean age, or admission temperature between primary and secondary hypothermia groups.
- A highly significant difference (P < 0.001) in long-term outcome was observed.
- 3-year mortality for survivors of primary hypothermia was 100%, compared to 24% for secondary hypothermia.
Conclusions:
- The cause of hypothermia in elderly patients is a critical determinant of long-term survival.
- Primary hypothermia in seniors carries an extremely poor long-term prognosis.
- Secondary hypothermia in the elderly, while serious, offers a significantly better long-term outlook than primary hypothermia.
Abstract:
A retrospective study was made of all patients aged over 65 years with hypothermia discharged from or dying in the Victoria Infirmary, Glasgow in the years 1977-81. Full follow-up data were obtained on 81 of the 91 patients identified. Patients were divided into cases of primary and secondary hypothermia. There were no significant differences between the two groups in initial mortality mean age on admission or mean temperature on admission, but there was a highly significant (P less than 0.001) difference in long-term outcome: the 3-year mortality in patients who survived the index admission was 100% in the primary group and 24% in the secondary group.
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