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Anorexia nervosa and sudden death.

J M Isner, W C Roberts, S B Heymsfield

    Annals of Internal Medicine
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    Sudden cardiac death in anorexia nervosa may stem from prolonged Q-T intervals, leading to dangerous ventricular arrhythmias. Routine electrocardiogram monitoring is recommended for these patients.

    Area of Science:

    • Cardiology
    • Internal Medicine
    • Psychiatry

    Background:

    • Anorexia nervosa is a severe eating disorder associated with significant morbidity and mortality.
    • Sudden cardiac death is a recognized, albeit infrequent, complication in patients with anorexia nervosa.

    Observation:

    • Review of necropsy findings and electrocardiograms from three deceased women with anorexia nervosa.
    • Necropsy failed to identify an anatomic cause of death in any of the cases.
    • Electrocardiograms revealed varying degrees of Q-T interval prolongation (corrected Q-T intervals: 0.61s, 0.47s, 0.46s).

    Findings:

    • Two patients experienced documented terminal ventricular tachyarrhythmias, including torsade de pointes in one.
    • The findings suggest a link between Q-T interval prolongation and sudden death in anorexia nervosa.

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  • This mechanism is similar to that observed in sudden death associated with liquid-protein diets.

    • Implications:

    • Electrocardiographic monitoring should be a routine practice for patients with anorexia nervosa.
    • Early detection of Q-T interval prolongation may allow for intervention to prevent fatal arrhythmias.
    • Further research is warranted to elucidate the precise mechanisms and optimal management strategies.