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Pediatrics. 2000 May;105(5):1100-5.

Electrocardiographic findings in adolescents with eating disorders.

Author information

1
Divisions of Adolescent Medicine and Cardiology, Department of Pediatrics, Hospital for Sick Children, and the Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

Abstract

OBJECTIVES:

We sought to determine the prevalence and clinical correlates of electrocardiographic findings in adolescents with eating disorders.

STUDY DESIGN:

We undertook matched case-control study of electrocardiographic findings at initial assessment in 62 adolescents with anorexia nervosa, 9 with bulimia nervosa, and 26 with eating disorder not otherwise specified presenting from March 1995 to September 1996.

RESULTS:

Mean (+/- 1 standard deviation) age was 15.0 +/- 1.4 years (95% were female). Patients with anorexia nervosa had significantly lower heart rates (mean case-control difference: -20 +/- 17 beats per minute), lower R in V(6) (-2.6 +/- 5.5 mm), longer QRS interval (+.004 +/-.010 seconds), shorter mean QTc (-.0136 +/-.033 seconds) and lesser QTc dispersion (-.010 +/-. 031 seconds). The bulimia nervosa group had slightly longer mean QTc (.019 +/-.020 seconds), with no significant case-control differences in the eating disorder not otherwise specified group.

CONCLUSION:

Electrocardiographic findings are abnormal in adolescents with anorexia nervosa but not in adolescents with bulimia nervosa or eating disorder not otherwise specified.

PMID:
10790469
DOI:
10.1542/peds.105.5.1100
[Indexed for MEDLINE]

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