This ECG was taken from a patient who was complaining of palpitations and tachycardia, but who was hemodynamically stable, with no history of heart disease. It is an example of RIGHT VENTRICULAR OUTFLOW TRACT TACHYCARDIA, a type of idiopathic ventricular tachycardia. The ECG signs of RVOT are: wide QRS complex, left bundle branch block pattern (QRS negative in V1 and positive in Leads I and V6), heart rate over 100 bpm, rightward or inferior axis (LBBB usually has a normal to leftward axis), AV dissociation.
Right ventricular outflow tract tachycardia
Wide-QRS rhythms can be difficult to diagnose from the ECG alone. This difficulty is compounded when the rate is fast, as it can be hard to determine if P waves are present before the QRSs, or dissociated, or absent.
This ECG and rhythm strip were donated to the ECG Guru by Ryan Cihowiak. We don't have clinical information on the patient, unfortunately. It is a great example, however, of how difficult WCT can be to diagnose.
All our content is FREE & COPYRIGHT FREE for non-commercial use
Please be courteous and leave any watermark or author attribution on content you reproduce.