first degree atrioventricular block
- 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 Pâ€“R intervals of greater than 0.21 second.
Medical dictionary. 2011.
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first degree heart block — the mildest form of heart block, in which conduction time is prolonged but all impulses are conducted; often used specifically for first degree atrioventricular block … Medical dictionary
First degree AV block — Infobox Disease Name = First degree AV block Caption = DiseasesDB = 10477 ICD10 = ICD10|I|44|0|i|30 ICD9 = ICD9|426.11 ICDO = OMIM = MedlinePlus = eMedicineSubj = emerg eMedicineTopic = 233 MeshID = First degree AV block or PR prolongation is a… … Wikipedia
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
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… … Wikipedia
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
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
Heart block — Classification and external resources ICD 10 I44 I45 ICD 9 … Wikipedia
Heart block — A block in the conduction of the normal electrical impulses in the heart. * * * heart block n incoordination of the heartbeat in which the atria and ventricles beat independently due to defective transmission through the bundle of His and which… … Medical dictionary
Bundle branch block — ICDO = OMIM = MedlinePlus = eMedicineSubj = ped eMedicineTopic = 2501 eMedicine mult = eMedicine2|ped|2500 MeshName = Bundle Branch+Block MeshNumber = C14.280.067.558.323 A bundle branch block refers to a defect of the heart s electrical… … Wikipedia