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  • Title: An unusual cause of atrial tachycardia in a young patient with lymphoma.
    Author: Luesink M, Smeets JL, Brons PP, Kapusta L.
    Journal: Clin Pediatr (Phila); 2009 May; 48(4):449-50. PubMed ID: 18772357.
    Abstract:
    An 8-year-old girl who was recently diagnosed as having anaplastic large-cell lymphoma presented with atrial tachycardia and dilated cardiomyopathy, which is a contraindication for further treatment with cardio-toxic chemotherapy. After starting digoxin therapy, the dilated cardiomyopathy resolved. Repeated episodes of atrial tachycardia in this case were not caused by any common disorder but were due to mechanical stimulation by a central venous catheter. Central venous catheters are known to cause mainly ventricular arrhythmias. However, atrial tachycardia is a rare manifestation of arrhythmia due to mechanical stimulation of the heart by a central venous catheter, with potentially important cardiovascular consequences.
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