A Case of J Wave Syndrome Due to Severe Hypercalcemia with Ventricular Fibrillation Storm and Successful Treatment of Isoproterenol Infusion

Masayuki Shiozaki; Masataka Sumiyoshi; Haruna Tabuchi; Hidemori Hayashi; Hiroshi Tamura; Kenji Inoue; Tohru Minamino

doi:10.1536/ihj.20-798

Case Reports

A Case of J Wave Syndrome Due to Severe Hypercalcemia with Ventricular Fibrillation Storm and Successful Treatment of Isoproterenol Infusion

Masayuki Shiozaki, Masataka Sumiyoshi, Haruna Tabuchi, Hidemori Hayashi, Hiroshi Tamura, Kenji Inoue, Tohru Minamino

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Keywords: Prominent J waves, Brugada syndrome, Hyperparathyroidism

JOURNAL FREE ACCESS

2021 Volume 62 Issue 4 Pages 924-926

DOI https://doi.org/10.1536/ihj.20-798

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Abstract

A case of J wave syndrome with ventricular fibrillation (VF) storm and severe hypercalcemia due to primary hyperparathyroidism is presented. VF storm subsided with an isoproterenol infusion. Prominent J waves and a Brugada-like electrocardiogram pattern disappeared after parathyroidectomy. Ventricular tachyarrhythmia was not induced during an electrophysiological study. The patient remained asymptomatic up to the 12-month follow-up.

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