Ventricular fibrillation associated with early repolarization in a patient with thyroid storm
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We present a case of a 69-year-old male who was hospitalized for the treatment of thyroid storm due to Grave’s disease, who presented with unexpected ventricular fibrillation (VF). The possible etiology was early repolarization (ER), characterized by J-point elevation in inferior and posterolateral leads, unmasked by the attenuation of beta-adrenergic effect with normalization of thyroid hormones and following the administration of a beta-blocker. Our case focuses attention on the occurrence of VF in a patient with ER during the treatment of hyperthyroidism, which to our knowledge is the first such report.
KeywordsVentricular fibrillation Thyroid storm Early repolarization J-point elevation Beta-blocker