title: Second-degree atrioventricular block (Mobitz Type I) in an adolescent with anorexia nervosa: intrinsic or acquired conduction abnormality.
abstract: Anorexia nervosa (AN) can cause both functional and structural cardiac complications, including a variety of different conduction abnormalities. This is the first case report of symptomatic diurnal second-degree atrioventricular (AV) block (Mobitz Type I) in an adolescent with AN. We present a 12-year-old girl with AN, restrictor sub-type who reported cardiac symptoms during weight gain, at the time of the initial diagnosis of AV block. Second-degree AV block (Mobitz Type I) is discussed as a possible complication of the AN, as well as being an intrinsic conduction system disease.
authors.affiliation: Division of Adolescent Medicine, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario M5G 1X8, Canada.
authors.forename: Nuray O
authors.initials: NO
authors.lastname: Kanbur
authors.forename: Eudice
authors.initials: E
authors.lastname: Goldberg
authors.forename: Leora
authors.initials: L
authors.lastname: Pinhas
authors.forename: Robert M
authors.initials: RM
authors.lastname: Hamilton
authors.forename: Robin
authors.initials: R
authors.lastname: Clegg
authors.forename: Debra K
authors.initials: DK
authors.lastname: Katzman
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000150:complications* / Q000175:diagnosis / Q000523:psychology / Q000628:therapy; D054537:Atrioventricular Block / Q000151:congenital / Q000175:diagnosis / Q000209:etiology*; D001794:Blood Pressure; D001827:Body Height; D001828:Body Image; D001835:Body Weight; D002648:Child; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D015716:Electrocardiography, Ambulatory; D015444:Exercise / Q000523:psychology; D005260:Female; D006339:Heart Rate; D006801:Humans; D010343:Patient Admission; D010348:Patient Care Team; D012307:Risk Factors