Figure 1 Narrow QRS-complex tachycardia at a rate of 176 b.p.m. Retrograde p waves are observable as negative inscriptions 80ms after beginning of QRS.
Figure 1 Narrow QRS-complex tachycardia at a rate of 176 b.p.m. Retrograde p waves are observable as negative inscriptions 80ms after beginning of QRS.
Figure 2 Non-sustained polymorphic ventricular tachycardia following modified Valsalva maneuver.