A woman in her 70s with history of hypertension presented to the emergency department experiencing chest pain and dyspnea. Her heart rate was 135 beats/min, and her blood pressure was 160/100 mm Hg. A 12-lead electrocardiogram documented wide complex tachycardia (WCT, Figure 1). Bedside transthoracic echocardiogram was notable for left ventricular ejection fraction 45% and moderate mitral regurgitation.
Enriquez A, Frankel DS. Wide Complex Tachycardia in an Elderly Woman. JAMA Cardiol. Published online June 21, 2017. doi:10.1001/jamacardio.2017.1912