deglutition syncope


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deglutition syncope

faintness or unconsciousness upon swallowing. This is nearly always due to excessive vagal effect on a heart that may already have bradycardia or atrioventricular block.
Synonym(s): swallow syncope

de·glu·ti·tion syn·co·pe

(dē-glū-tish'ŭn sing'kŏ-pē)
Faintness or unconsciousness on swallowing. This is nearly always due to excessive vagal effect on a heart that may already have bradycardia or atrioventricular block.

deglutition syncope

Syncope triggered by swallowing. It is an abnormal reflex in which stimulation of the esophagus elicits vagal motor impulses that cause bradycardia, peripheral vasodilation, and hypotension.
See also: syncope

deglutition syncope

A condition of sympathetic inhibition from vagus nerve activation due to stimulation of the oesophagus in swallowing, especially when cold beverages are taken. In a severe case there may be marked slowing of the heart, widening of peripheral blood vessels and a drop in blood pressure. This may result in dangerous dizziness, confusion and syncope.
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