| AVO | aortic valve opening; aortic valve orifice; atrioventricular opening |
|---|---|
| AVRP | atrioventricular refractory period |
| AVSD | atrioventricular septal defect |
| CAVB | complete atrioventricular block |
| CAVD | complete atrioventricular dissociation; completion, arithmetic problems, vocabulary, following direc... |