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  • Title: Cardiovascular effects of desipramine in children and adults during exercise testing.
    Author: Waslick BD, Walsh BT, Greenhill LL, Giardina EG, Sloan RP, Bigger JT, Bilich K.
    Journal: J Am Acad Child Adolesc Psychiatry; 1999 Feb; 38(2):179-86. PubMed ID: 9951217.
    Abstract:
    OBJECTIVE: In light of recent reports of sudden death in children being treated with desipramine (DMI), 3 of which were associated with physical exercise, the authors examined the effects of DMI on exercise in children and adults before and during DMI treatment. METHOD: Before treatment, 22 subjects (9 children, 13 adults) participated in a graded treadmill exercise test. Outcome measures included exercise tolerance, cardiovascular, and electrocardiographic parameters at progressive intensity levels and serum norepinephrine (NE) levels before and after exercise testing. Subjects were then treated with DMI, titrated to an average DMI dosage of 3 mg/kg, and underwent repeated exercise testing. RESULTS: DMI treatment was associated with a significant elevation of circulating NE levels in the pre-exercise assessment. Exercise tolerance was not affected by DMI, and blood pressure and heart rate effects were modest. The cardiovascular impact of DMI treatment was similar in children and adults. One 31-year-old subject exhibited a brief episode of ventricular tachycardia associated with exercise during DMI treatment. CONCLUSIONS: DMI has only minor effects on the cardiovascular response to exercise, and these effects do not appear age-related. However, DMI may increase the risk of exercise-associated arrhythmias in rare individuals.
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