Josephson and Wellens ECG Lessons: A Monthly Visit to the 12 Lead ECG| Volume 15, ISSUE 2, P306-307, February 01, 2018

Unusual termination of a wide QRS tachycardia

      The electrocardiogram (Figure 1) was recorded in a 72-year-old man who came to the first heart aid clinic because of palpitations accompanied by moderate chest pain. Two years earlier he suffered from an anteroseptal myocardial infarction with a left ventricular ejection fraction of 30% and did receive an implantable cardioverter-defibrillator. He was in functional class 2 of the New York Heart Association and was treated with a β-blocker, an angiotensin-converting enzyme inhibitor, a diuretic, and a statin. He never noted these palpitations before.
      Figure thumbnail gr1
      Figure 1A wide QRS tachycardia at a rate of 125 beats/min. Three small QRS complexes are present. See text.
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