Basal metabolic temperature vs. laboratory assessment in "posttraumatic hypothyroidism"

Area of Science:

• Endocrinology
• Trauma Medicine
• Diagnostic Testing

Background:

• Hypothyroidism can arise following trauma, particularly whiplash injuries.
• Standard laboratory tests may not always detect all cases of post-traumatic hypothyroidism.
• Basal metabolic temperature (BMT) measurement offers a potential alternative or complementary diagnostic approach.

Purpose of the Study:

• To compare basal metabolic temperature (BMT) measurement with standard laboratory methods for diagnosing hypothyroidism in post-traumatic patients.
• To investigate the utility of BMT in identifying hypothyroidism specifically after whiplash trauma.

Main Methods:

• One hundred and one patients with post-whiplash trauma were evaluated.
• Standard thyroid function tests (T3RU, T4, FT4I, TSH) were performed.
• Basal metabolic temperature (BMT) was measured in all subjects; fluorescence-activated microsphere assay (FAMA) was used in 94 subjects.

Main Results:

• A significant majority (86.4%) of patients exhibited below-normal BMT.
• Only 30% of those with low BMT had abnormal standard laboratory values.
• A portion of patients identified as 'lab-normal' by standard tests showed abnormal BMT or FAMA results, suggesting undiagnosed hypothyroidism.

Conclusions:

• Basal metabolic temperature (BMT) measurement appears to be a sensitive screening tool for hypothyroidism following whiplash trauma.
• Combined with laboratory analysis, BMT can improve the detection of post-traumatic hypothyroidism.
• The findings suggest whiplash trauma may induce a unique form of hypothyroidism, potentially due to direct central tissue injury.