In addition to 'Ventricular flutter', there may be other similar symptoms or signs that better match your side effect. These have also been listed below for your convenience.

If so, the QRS complexes and the flutter waves would maintain a fixed relationship. That is not happening here. It is also not ventricular tachycardia because the narrow QRS complexes march through.

Ventricular tachycardia, ventricular fibrillation or ventricular flutter occurred in 9 patients receiving carvedilol (0.9%) and 38 patients receiving placebo (3.9%), respectively (P <0.0001).

(B) Electrocardiogram of the patient at 16:00 h showing the onset of ventricular flutter. The results revealed ST-segment depression in lead V5 during the initial episode of sinus tachycardia.

Ventricular tachycardia, unless very transient, is an alarming complication that, fortunately, has been rare. Ventricular fibrillation has also occurred rarely (3 in our series of over 1500 ...

The ventricular rate is frequently elevated and regular ― the latter of which is an important factor that allows for differentiation between atrial flutter and atrial fibrillation.

Cite this article McCullough, P., Wase, A. Do implantable cardioverter-defibrillators improve survival in dialysis patients after cardiac arrest?. Nat Rev Nephrol 2, 70–71 (2006). https://doi ...