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Contralateral hyperhidrosis in anterior thalamic infarction.

Jeong-Min Kim¹, Seong-Don Seo, Yong-Won Kim

¹Department of Neurology, Kyungpook National University Hospital, 130, Dongduk-ro, Jung-gu, Daegu, 700-721, Republic of Korea.

Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society

|October 1, 2014

Summary

This summary is machine-generated.

An anterior thalamic infarction in a 62-year-old male led to contralateral hyperhidrosis. This suggests the thalamus may play a role in the crossed inhibitory sweating pathway.

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Area of Science:

Neuroscience
Autonomic Nervous System Research
Clinical Neurology

Background:

The autonomic nervous system regulates involuntary functions like sweating.
The precise pathways controlling contralateral sweating are not fully elucidated.
Thalamic and hypothalamic roles in thermoregulation and sweating are areas of ongoing investigation.

Observation:

A 62-year-old male patient presented with excessive sweating on the opposite side of his body (contralateral hyperhidrosis).
This sweating occurred after a stroke affecting the anterior part of his thalamus.
Crucially, the patient had no observable lesion in the hypothalamus, a region typically associated with sweat control.

Findings:

The occurrence of contralateral hyperhidrosis following an anterior thalamic infarction, in the absence of hypothalamic damage, is a novel clinical observation.
This finding supports the hypothesis that the thalamus may be involved in sudomotor (sweating) pathways.
Specifically, it suggests the thalamus could be part of a crossed contralateral inhibitory sweating pathway.

Implications:

This study expands our understanding of the central nervous system's control over sweating.
It highlights a potential, previously unrecognized role for the thalamus in regulating sweat responses.
Further research into thalamic sudomotor pathways could inform treatments for hyperhidrosis and other autonomic dysfunctions.