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Digoxin Toxicity at Standard Doses in a Child with Subclinical Elevation of Thyrotrophin: A Case Report
Mohammadrafie Khorgami1, Mohammad Dalili1, Bahareh Karimian2
1Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Institute, Tehran, Iran.
Abstract:
Digoxin toxicity poses a challenge for patients using the drug. Electrolyte disturbances, renal failure, and drug interactions are common predisposing factors. Hypothyroidism can increase the risk of digoxin toxicity primarily. This research reports a 7-year-old boy receiving digoxin 6 μg/kg/day presented with nausea and second-degree atrioventricular block secondary to ongoing digoxin toxicity. Initiation of levothyroxine for subclinical elevation of thyrotrophin resulted in rapid resolution of symptoms and normalization of digoxin levels.
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