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Published on: August 9, 2022
Acute myocardial infarction with a left main trunk lesion and documented lambda-like J waves
Masaru Yamaki1, Nobuyuki Sato, Ahmed Karim Talib
1Department of Emergency Medicine, Asahikawa Medical University, Japan.
Insights
Lambda-like J waves, a specific ECG finding, were observed in a patient experiencing myocardial infarction and ventricular fibrillation. These ischemic J waves may serve as a critical marker for life-threatening arrhythmias in acute myocardial infarction cases.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Diagnostics
Background:
- Myocardial infarction (MI) is a leading cause of sudden cardiac death.
- Ventricular fibrillation (VF) is a critical complication of acute MI.
- J waves on electrocardiogram (ECG) are associated with various cardiac conditions.
Abstract:
We herein describe a case of a myocardial infarction, in which Lambda-like J waves were documented. The patient was referred to our hospital due to ventricular fibrillation. The twelve-lead electrocardiogram (ECG) on admission showed prominent J waves in the lateral and precordial leads. Coronary angiography revealed 99% stenosis with a delay in the left anterior descending artery, 75% stenosis in the left main trunk, and possible ischemia in the conus branch. Our report addresses the possibility that ischemic J waves can be used as an important marker for lethal arrhythmias in patients with acute myocardial infarction.
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