Second degree AV block causes: Difference between revisions
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* [[Acute myocardial infarction]] | * [[Acute myocardial infarction]] | ||
* [[Acute rheumatic fever]] | * [[Acute rheumatic fever]] | ||
* [[Amyloidosis]] | * [[Amyloidosis]] | ||
* [[Ankylosing spondylitis]] | * [[Ankylosing spondylitis]] | ||
* [[ASD]] | * [[ASD]] | ||
* [[Bacterial endocarditis]] | * [[Bacterial endocarditis]] | ||
* [[Beta-blockers]] | * [[Beta-blockers]] | ||
* [[Calcific aortic stenosis]] | * [[Calcific aortic stenosis]] | ||
* [[Calcium channel blockers]] | * [[Calcium channel blockers]] | ||
* [[Cardiac glycosides]] | * [[Cardiac glycosides]] | ||
* [[Cardiac tumors]] | * [[Cardiac tumors]] | ||
* [[Chagas disease]] | * [[Chagas disease]] | ||
* [[Cholinesterase inhibitors]] | * [[Cholinesterase inhibitors]] | ||
* [[Clonidine]] | * [[Clonidine]] | ||
* [[Degenerative diseases]] | * [[Degenerative diseases]] | ||
* [[Dermatomyositis]] | * [[Dermatomyositis]] | ||
* [[Digitalis]] | * [[Digitalis]] | ||
* [[Digoxin]] | * [[Digoxin]] | ||
* [[Dilated cardiomyopathy]] | * [[Dilated cardiomyopathy]] | ||
* [[Diltiazem]] | * [[Diltiazem]] | ||
* [[Diphtheria]] | * [[Diphtheria]] | ||
* [[Disopyramide]] | * [[Disopyramide]] | ||
* [[Dolasetron]] | * [[Dolasetron]] | ||
* [[Donepezil]] | * [[Donepezil]] | ||
* [[Drugs]] | * [[Drugs]] | ||
* [[Ebstein's anomaly]] | * [[Ebstein's anomaly]] | ||
* [[Electrolyte disturbances]] | * [[Electrolyte disturbances]] | ||
* [[Emery-Dreifuss muscular dystrophy]], [[sex linkage|x-linked]] | * [[Emery-Dreifuss muscular dystrophy]], [[sex linkage|x-linked]] | ||
* [[Endocarditis]] | * [[Endocarditis]] | ||
* [[vagus nerve|enhanced vagal tone in athletes]] | * [[vagus nerve|enhanced vagal tone in athletes]] | ||
* [[Eslicarbazepine acetate]] | * [[Eslicarbazepine acetate]] | ||
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* [[Fabry disease]] | * [[Fabry disease]] | ||
* [[Fesoterodine]] | * [[Fesoterodine]] | ||
* [[Fingolimod]] | * [[Fingolimod]] | ||
* [[Glycogenosis type 2b]] | * [[Glycogenosis type 2b]] | ||
* [[HCM]] | * [[HCM]] | ||
* [[Neuromuscular disease|hereditary neuromuscular disease]] | * [[Neuromuscular disease|hereditary neuromuscular disease]] | ||
* [[Hodgkin lymphoma]] | * [[Hodgkin lymphoma]] | ||
* [[Hyperkalaemia]] | * [[Hyperkalaemia]] | ||
* [[Carotid sinus hypersensitivity|Hypersensitive carotid sinus syndrome]] | * [[Carotid sinus hypersensitivity|Hypersensitive carotid sinus syndrome]] | ||
* [[Hyperthyroidism] | |||
* [[Hyperthyroidism] | |||
* [[Hypokalaemia]] | * [[Hypokalaemia]] | ||
* [[Hypothermia]] | * [[Hypothermia]] | ||
* [[Ibutilide]] | * [[Ibutilide]] | ||
* [[Ischaemic heart disease]] | * [[Ischaemic heart disease]] | ||
* [[Kearns-Sayre syndrome]] | * [[Kearns-Sayre syndrome]] | ||
* [[Labetalol]] | * [[Labetalol]] | ||
* [[Lacosamide]] | * [[Lacosamide]] | ||
* [[Lanatoside C]] | * [[Lanatoside C]] | ||
* [[Lenegre's disease]] | * [[Lenegre's disease]] | ||
* [[Lev's disease]] | * [[Lev's disease]] | ||
* [[Lyme disease]] | * [[Lyme disease]] | ||
* [[Mitochondrial DNA|Mitochondrial genome inherited conditions]] | * [[Mitochondrial DNA|Mitochondrial genome inherited conditions]] | ||
* [[Multiple myeloma]] | * [[Multiple myeloma]] | ||
* [[Muscular dystrophy]] | * [[Muscular dystrophy]] | ||
* [[Myocardial bridging]] | * [[Myocardial bridging]] | ||
* [[Myocarditis]] | * [[Myocarditis]] | ||
* [[Myotonic dystrophy]] | * [[Myotonic dystrophy]] | ||
* [[Myxedema]] | * [[Myxedema]] | ||
* [[neonatal lupus erythematosus]] | * [[neonatal lupus erythematosus]] | ||
* [[prolonged PR interval|Normal variants of PR prolongation]] | * [[prolonged PR interval|Normal variants of PR prolongation]] | ||
* [[Pain]] | * [[Pain]] | ||
* [[Paliperidone]] | * [[Paliperidone]] | ||
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* [[aortic valve replacement|Post aortic valve replacement ]] | * [[aortic valve replacement|Post aortic valve replacement ]] | ||
* [[catheter ablation|Post catheter ablation for arrhythmias]] | * [[catheter ablation|Post catheter ablation for arrhythmias]] | ||
* [[Ventricular septal defect surgery|Post closure of a ventricular septal defect]] | * [[Ventricular septal defect surgery|Post closure of a ventricular septal defect]] | ||
* [[mitral valve replacement|Post mitral valve replacement]] | * [[mitral valve replacement|Post mitral valve replacement]] | ||
* [[Procainamide ]] | * [[Procainamide ]] | ||
* [[Propoxyphene]] | * [[Propoxyphene]] | ||
* [[Propranolol]] | * [[Propranolol]] | ||
* [[Protozoa|Protozoal infection]] | * [[Protozoa|Protozoal infection]] | ||
* [[Quinidine]] | * [[Quinidine]] | ||
* [[Quinine]] | * [[Quinine]] | ||
* [[Rheumatic fever|Rheumatic mitral valve disease]] | * [[Rheumatic fever|Rheumatic mitral valve disease]] | ||
* [[Sarcoidosis]] | * [[Sarcoidosis]] | ||
* [[SLE]] | * [[SLE]] | ||
* [[Sleep ]] | * [[Sleep ]] | ||
* [[Systemic sclerosis]] | * [[Systemic sclerosis]] | ||
* [[Terodiline]] | * [[Terodiline]] | ||
* [[Tetralogy of fallot]] | * [[Tetralogy of fallot]] | ||
* [[periodic paralysis|Thyrotoxic periodic paralysis]] | * [[periodic paralysis|Thyrotoxic periodic paralysis]] | ||
* [[Tolterodine]] | * [[Tolterodine]] | ||
* [[Transposition of the great vessels]] | * [[Transposition of the great vessels]] | ||
* [[Trauma]] | * [[Trauma]] | ||
* [[vagus nerve|Vagal maneuvers]] | * [[vagus nerve|Vagal maneuvers]] | ||
* [[Valsalva manouevre]] | * [[Valsalva manouevre]] | ||
* [[Valvular heart disease]] | * [[Valvular heart disease]] | ||
* [[Verapamil]] | * [[Verapamil]] | ||
* [[VSD]] | * [[VSD]] | ||
* [[sex linkage|X-linked inherited conditions]] | * [[sex linkage|X-linked inherited conditions]] | ||
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Revision as of 02:39, 4 September 2013
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Second degree AV block Microchapters |
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Second degree AV block causes On the Web |
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Risk calculators and risk factors for Second degree AV block causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2] Mahmoud Sakr, M.D. [3]
Synonyms and keywords:; AV block, atrioventricular block, heart block, Mobitz type I AV block, Mobitz type II AV block, Advanced second degree AV block, (Wenckebach) AV block
Overview
Atrioventricular (AV) block is defined as an interruption in the transmission of an impulse, either transient or permanent, from the atria to the ventricles due to an anatomic or functional impairment in the conduction system. In second degree AV block, some atrial impulses fail to reach the ventricles. Wenckebach described progressive delay between atrial and ventricular contraction and the eventual failure of an atrial beat to reach the ventricles. Mobitz subsequently divided second degree AV block into two subtypes, as determined by the findings on the electrocardiogram. In Mobitz type I AV block, progressive PR interval prolongation precedes a non-conducted P wave. While in Mobitz type II AV block, the PR interval remains unchanged prior to a P wave that suddenly fails to conduct to the ventricles.
Causes
Life Threatening Causes
Life-threatening conditions can result in death or permanent disability within 24 hours if left untreated.
- Acute myocardial infarction
- Acute rheumatic fever
- Bacterial endocarditis
- Myocarditis
- Severe hypothermia
Common Causes
- Acute rheumatic fever
- Bacterial endocarditis, especially of the aortic valve
- β blockers
- Calcific aortic stenosis
- Degenerative disease
- Digoxin
- Dilated cardiomyopathy
- Diltiazem
- Enhanced vagal tone
- HCM
- Hypertension
- Iatrogenic after surgical correction of VSD, tetralogy of Fallot, and endocardial cushion defect
- Inferior ST elevation MI
- Massive calcification of the mitral annulus
- myocarditis
- Normal variants
- Penetrating and non-penetrating trauma of the chest
- Sclerodegenerative disease of the electrical conduction system
- Verapamil