Vtach Vs Svt Ecg. Increased automaticity uncommon if an irritable focus of the terminal purkinje cells discharges at a rapid rate 150 bpm this will produce a qrs complex as discussed previously wide 0 12 sec bizarre shaped. The term svt with aberrancy tends to throw many providers off so let s start by defining svt using the 2015 acc aha hrs guidelines as reference.
It is clearly true that v tach is a more life threatening rhythm and that the treatment mode is very different from svt. With sinus tach the p waves and t. The most important distinction is whether the rhythm is ventricular vt or supraventricular svt with aberrancy as this will significantly influence how you manage the patient.
Ventricular tachycardia is a highly nuanced arrhythmia which originates in the ventricles.
However on closer inspection there are signs of av dissociation with superimposed p waves visible in v1. Increased automaticity uncommon if an irritable focus of the terminal purkinje cells discharges at a rapid rate 150 bpm this will produce a qrs complex as discussed previously wide 0 12 sec bizarre shaped. Sinus tachycardia has a rate of 100 to 150 beats per minute and svt has a rate of 151 to 250 beats per minute. A wide range of conditions may cause ventricular tachycardia and the ecg is as nuanced as are those conditions.
