Transition of the ST segment from a J wave to a coved-type elevation before ventricular fibrillation induced by
Masaru Inoue1, Takao Matsubara, Toshihiko Yasuda
1Division of Cardiology, Ishikawa Prefectural Hospital, Kanazawa, Japan. cardioheart1143729b@yahoo.co.jp
Insights
This study details a patient experiencing ventricular fibrillation due to coronary artery vasospasm, presenting unique electrocardiogram ST segment changes. These findings suggest repolarization abnormalities, possibly linked to Brugada syndrome or early repolarization syndrome.
Area of Science:
- Cardiology
- Electrophysiology
- Internal Medicine
Background:
- Ventricular fibrillation (VF) is a life-threatening arrhythmia.
- ST-segment abnormalities on electrocardiograms (ECGs) can indicate underlying cardiac conditions.
- Brugada syndrome and early repolarization syndrome are known causes of repolarization abnormalities.
Abstract:
We describe the case of a 63-year-old man whose electrocardiogram showed transition of the ST segment from a J wave to a coved-type elevation in precordial leads before ventricular fibrillation induced by right coronary artery vasospasm. Simultaneously, the ST segment in inferior leads was gradually depressed with a J wave. Considering the sudden death of his son, induced ventricular fibrillation by programmed electrical stimulation, and modulations of the ST segment in the precordial and inferior leads by pilsicainide, some abnormalities in repolarization associated with Brugada syndrome or early repolarization syndrome might have caused these atypical ST-segment manifestations.
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