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Congenital Swallowing‐induced Symptomatic Heart Block: A Case Report of a Probably Hereditary Disorder
Author(s) -
GOLF SVEIN,
FORFANG KOLBJØRN
Publication year - 1986
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1986.tb06619.x
Subject(s) - medicine , swallowing , heart block , cardiology , reflex , atrioventricular block , syncope (phonology) , cerebrovascular disorder , pediatrics , anesthesia , electrocardiography , surgery
A 15‐year‐old girl had had syncope induced by swallowing since infancy. An ECG recorded during food intake revealed SA block with very slow functional and ventricular escape rhythms. No symptoms or signs of other cardiac disorders or gastrointestinal diseases were present. Activation of a strong vagal reflex, able to inhibit impulse formation and propagation in an otherwise normal heart, is the most likely explanation of the disorder in this patient. Furthermore, EGGs of her close relatives which were recorded during food intake as compared with the findings in a reference group (n = 20), indicated that a genetic factor could be involved.