| BBBB | bilateral bundle-branch block |
|---|---|
| BD | barbital-dependent; barbiturate dependence; base deficit; base of prism down; basophilic degeneratio... |
| BIDLB | block in posteroinferior division of left branch |
| BSDLB | block in anterosuperior division of left branch |
| CAVB | complete atrioventricular block |