| CAVB | complete atrioventricular block |
|---|---|
| CAVD | complete atrioventricular dissociation; completion, arithmetic problems, vocabulary, following direc... |
| CAVO | common atrioventricular orifice |
| NPJT | nonparoxysmal atrioventricular junctional tachycardia |
| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |