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Inappropriate implantable cardioverter-defibrillator (ICD) therapy of atrial tachycardia (AT) with 1:1 atrioventricular (AV) conduction is common because it is difficult to discriminate from ventricular tachycardia (VT) with 1:1 retrograde conduction. Tachycardia cycle length (CL) variability and the relationship between atrial and ventricular CLs may be useful in discriminating AT from VT with 1:1...
Differential diagnosis of wide QRS complex tachycardias using the 12-lead ECG may be difficult in many clinical settings.The purpose of this study was to determine the value of ECG lead II, specifically, the duration at its beginning, defined as R-wave peak time (RWPT), in differentiating ventricular tachycardia (VT) from supraventricular tachycardia (SVT) in patients with wide QRS complex tachycardia...
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