"Ventricular tachyarrhythmias are those ventricular arrhythmias associated with an increased heart rate."
"ventricular tachycardia: wide QRS complexes (QRS ≥120 ms)"
"ventricular tachycardia: wide QRS complexes (QRS ≥120 ms)"
"monomorphic ventricular tachycardia: stable QRS morphology"
"polymorphic ventricular tachycardia: multiform or alternating QRS morphology"
"polymorphic ventricular tachycardia with long QT interval"
"waxing and waning QRS amplitude"
"long QT syndrome"
"short QT syndrome"
"Symptoms include fatigue, lightheadedness, dizziness, palpitations, presyncope, syncope and chest pain, dyspnoea 1-3."
"Symptoms include fatigue, lightheadedness, dizziness, palpitations, presyncope, syncope and chest pain, dyspnoea 1-3."