| DSACT, D-SACT | direct sinoatrial conduction time |
|---|---|
| EAVC | enhanced atrioventricular conduction |
| EAVN | enhanced atrioventricular nodal [conduction] |
| EMG/NCV | electromyography/nerve conduction velocity [test] |
| IACD | implantable automatic cardioverter-defibrillator; intra-arterial conduction defect |