| Pronunciation: | | hârt blâk
|
 WordNet Dictionary |
| |
| | Definition: | | [n] recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat |
| |
| | Websites: | | |
| |
| | Synonyms: | | Adams-Stokes syndrome, atrioventricular block, Stokes-Adams syndrome |
| |
| | See Also: | | arrhythmia, cardiac arrhythmia |
|
| Products Dictionary |
| |
| | Definition: | | Heart Block
Heart Block more details ... |
| |
| Medical Dictionary |
| |
| | Definition: | | interrupted electrical impulse to heart muscles. |
| |
| Biology Dictionary |
| |
| | Definition: | | A heart block is an abnormality of conduction of the electrical heart impulse. Both anatomic or functional imapirment of atrial-ventricular (AV) conduction is contributory. Types: - first degree AV block: P-R interval longer than 0.21 seconds in adults; all supraventricular impulses are conducted
- second degree AV block: Mobitz type I (Wenckebach) block: conduction time (P-R interval) is progressively prolonged prior to dropped beats. Mobitz type II conduction time (P-R interval) is not prolonged prior to dropped beats.
- third degree AV block: no impulses are conducted.
|
| |
