Pathological yawning as a presenting symptom of brain stem ischaemia in two patients.
case_report · Level V
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- Record sourced from PubMed, PMID 16174652.
- Also identified by PMC identifier 2117389.
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Abstract
Two cases of brain stem stroke involving the upper pons and the ponto-mesencephalic junction presented with transient excessive pathological yawning, associated with gait ataxia and in one subject with upper limb and facial hemiparesis. A causal relation is hypothesised between the brain stem lesion and pathological yawning, possibly related to denervation hypersensitivity of a putative brain stem yawn centre. Excessive yawning may herald brain stem ischaemia.
Medical subject headings
- Brain Ischemia
- Brain Stem
- Yawning