Abrupt aggravation of atrioventricular block and syncope in hypertrophic cardiomyopathy.
A 10 year old girl with hypertrophic cardiomyopathy (HCM) developed high grade atrioventricular (A-V) block unexpectedly, which instantly led to syncope; she required a permanent pacemaker. High grade A-V block, a rare complication of HCM, relates closely to syncope or sudden death in this disease and if progressive the use of cardiac pacing should be considered without delay.
Tamura
M
M
Department of Paediatrics, Akita University School of Medicine, Japan.
Harada
K
K
Ito
T
T
Enoki
M
M
Takada
G
G
D002304:Cardiac Pacing, Artificial; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications* / Q000000981:diagnostic imaging; D002648:Child; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology* / Q000628:therapy; D006801:Humans; D013575:Syncope / Q000209:etiology*; D014463:Ultrasonography