Ischemia-induced prominent J waves in a patient with Brugada syndrome

Nobue Yagihara1, Akinori Sato, Hiroshi Furushima

  • 1Division of Cardiology, Niigata University Graduate School of Medical and Dental Science, Niigata.

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Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.