| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |
|---|---|
| RAVC | retrograde atrioventricular conduction; Royal Army Veterinary Corps |
| SAV | sequential atrioventricular [pacing] |
| TAVB | total atrioventricular block |
| AVN | 1) Atrio-Ventricular Node 2) AVascular Necrosis |