Yep, it is a fancy term:
“The ECG algorithm organizes dysrhythmias into four categories:
Narrow complex regular:
Sinus Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), Atrial Flutter (Aflutter)
Narrow complex irregular:
Multifocal Atrial Tachycardia (MAT), Atrial Fibrillation (Afib), Aflutter with variable atrioventricular (AV) conduction
Wide complex regular:
Monomorphic Ventricular Tachycardia (VT), PSVT or Aflutter with aberrancy or bundle branch block (BB
Wide complex irregular:
Polymorphic Ventricular Tachycardia aka Torsades de Pointes (TdP), Afib or Aflutter with aberrancy or BBB”