Atrioventricular block


Atrioventricular block

Infobox_Disease
Name = Atrioventricular block


Caption =
DiseasesDB =
ICD10 = ICD10|I|44|0|i|30-ICD10|I|44|3|i|30
ICD9 = ICD9|426.0-ICD9|426.1
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj = med
eMedicineTopic = 189
MeshID = D006327
An atrioventricular block (or AV block) is a type of heart block involving impairment of the conduction between the atria and ventricles of the heart. It usually involves the atrioventricular node, but it can involve other structures.

There are three types:
* First degree AV block
* Second degree AV block
* Third degree AV block

External links

* http://www.umm.edu/imagepages/1429.htm


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Look at other dictionaries:

  • atrioventricular block — AV block impairment of conduction of cardiac impulses from the atria to the ventricles, usually due to a block in the atrioventricular junctional tissue (atrioventricular node, bundle of His, or bundle branches). It is generally subclassified as… …   Medical dictionary

  • atrioventricular block — noun recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat • Syn: ↑heart block, ↑Adams Stokes syndrome, ↑Stokes Adams syndrome • Hypernyms: ↑cardiac arrhythmia, ↑arrhythmia …   Useful english dictionary

  • Second-degree atrioventricular block — Classification and external resources ICD 10 I44.1 ICD 9 426.12 …   Wikipedia

  • Third-degree atrioventricular block — Classification and external resources ICD 10 I44.2 …   Wikipedia

  • third degree atrioventricular block — a third degree heart block due to total cessation of impulse conduction through the atrioventricular junctional tissue; no correspondence exists between atrial and ventricular activity, and ventricular asystole and death occur unless a… …   Medical dictionary

  • second degree atrioventricular block — a second degree heart block due to partial impairment of impulse conduction through the atrioventricular junctional tissue; impulses intermittently fail to reach the ventricles (dropped beats). It occurs as two types: type I is Wenckebach or… …   Medical dictionary

  • first degree atrioventricular block — a first degree heart block due to a block in the atrioventricular junctional tissue; the rate of conduction of impulses from the atria to the ventricles is slowed, resulting in regular electrocardiographic P–R intervals of greater than 0.21… …   Medical dictionary

  • complete atrioventricular block — third degree atrioventricular b …   Medical dictionary

  • high grade atrioventricular block — either second or third degree atrioventricular b …   Medical dictionary

  • block — 1. To obstruct; to arrest passage through. 2. A condition in which the passage of an electrical impulse is arrested, wholly or in part, temporarily or permanently. 3. SYN: atrioventricular b.. [Fr. bloquer] alveolocapillary b. the presence of… …   Medical dictionary


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