| NPJT | nonparoxysmal atrioventricular junctional tachycardia |
|---|---|
| RAVC | retrograde atrioventricular conduction; Royal Army Veterinary Corps |
| SAV | sequential atrioventricular [pacing] |
| BBB | 1) Bundle Branch Block 2) Blood Brain Barrier - Blood Brain Barrier |
| BBBB | Bilateral Bundle Branch Block |