Second degree AV block causes: Difference between revisions
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* [[Bacterial endocarditis]] | * [[Bacterial endocarditis]] | ||
* [[aortic stenosis|Calcific aortic stenosis]] | * [[aortic stenosis|Calcific aortic stenosis]] | ||
* [[Digoxin]] | * [[Digoxin]] | ||
* [[Dilated cardiomyopathy]] | * [[Dilated cardiomyopathy]] | ||
* [[Diltiazem]] | * [[Diltiazem]] | ||
* [[ | * [[Vasovagal syncope#Cardioinhibitory Response|Enhanced vagal tone]] | ||
* [[HCM]] | * [[HCM]] | ||
* [[Hypertension]] | * [[Hypertension]] | ||
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{|style="width:80%; height:100px" border="1" | {|style="width:80%; height:100px" border="1" | ||
|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular''' | |style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular''' | ||
|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" |[[Acute myocardial infarction]], [[acute rheumatic fever]], [[ASD]], [[dilated cardiomyopathy]], | |style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | [[Acute myocardial infarction]], [[acute rheumatic fever]], [[ASD]], [[dilated cardiomyopathy]], [[Ebstein's anomaly]], [[Carotid sinus hypersensitivity|hypersensitive carotid sinus syndrome]], [[hypertension]], [[hypertrophic cardiomyopathy]], [[Lev's disease]], [[myocardial bridging]], [[myocarditis]], [[PR interval|normal variants]], [[Aortic valve replacement|post aortic valve replacement]], [[catheter ablation|post catheter ablation for arrhythmias]], [[ventricular septal defect surgery|post closure of a ventricular septal defect]], [[mitral valve replacement|post mitral valve replacement]], [[tetralogy of Fallot]], [[endocardial cushion defect]], [[transposition of the great vessels]], [[valvular heart disease]], [[VSD]] | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Musculoskeletal / Ortho''' | | '''Musculoskeletal / Ortho''' | ||
|bgcolor="Beige"| [[Ankylosing spondylitis]], [[Neuromuscular disease|hereditary neuromuscular disease]], [[Kearns-Sayre syndrome]], [[mitochondrial DNA|mitochondrial genome inherited conditions]], | |bgcolor="Beige"| [[Ankylosing spondylitis]], [[Neuromuscular disease|hereditary neuromuscular disease]], [[Kearns-Sayre syndrome]], [[mitochondrial DNA|mitochondrial genome inherited conditions]], [[muscular dystrophy]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Neurologic''' | | '''Neurologic''' | ||
|bgcolor="Beige"| | |bgcolor="Beige"| [[Vasovagal syncope#Cardioinhibitory Response|Enhanced vagal tone]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Miscellaneous''' | | '''Miscellaneous''' | ||
|bgcolor="Beige"| [[Amyloidosis]], [[degenerative diseases | |bgcolor="Beige"| [[Amyloidosis]], [[degenerative diseases]] | ||
|- | |- | ||
|} | |} | ||
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* [[Dolasetron]] | * [[Dolasetron]] | ||
* [[Donepezil]] | * [[Donepezil]] | ||
* [[Ebstein's anomaly]] | * [[Ebstein's anomaly]] | ||
* [[Electrolyte disturbances]] | * [[Electrolyte disturbances]] | ||
* [[Emery-Dreifuss muscular dystrophy | * [[Emery-Dreifuss muscular dystrophy]] | ||
* [[Endocarditis]] | * [[Endocarditis]] | ||
* [[vagus nerve|Enhanced vagal tone in athletes]] | * [[vagus nerve|Enhanced vagal tone in athletes]] | ||
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* [[Hypothermia]] | * [[Hypothermia]] | ||
* [[Ibutilide]] | * [[Ibutilide]] | ||
* [[ | * [[Ischemic heart disease]] | ||
* [[Kearns-Sayre syndrome]] | * [[Kearns-Sayre syndrome]] | ||
* [[Labetalol]] | * [[Labetalol]] | ||
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* [[Myxedema]] | * [[Myxedema]] | ||
* [[Neonatal lupus erythematosus]] | * [[Neonatal lupus erythematosus]] | ||
* [[prolonged PR interval|Normal variants of PR | * [[prolonged PR interval|Normal variants of PR prolongation]] | ||
* [[Paliperidone]] | * [[Paliperidone]] | ||
{{col-break|width=33%}} | {{col-break|width=33%}} | ||
* [[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]] | ||
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* [[Sarcoidosis]] | * [[Sarcoidosis]] | ||
* [[SLE]] | * [[SLE]] | ||
* [[Systemic sclerosis]] | * [[Systemic sclerosis]] | ||
* [[Terodiline]] | * [[Terodiline]] | ||
* [[Tetralogy of | * [[Tetralogy of Fallot]] | ||
* [[periodic paralysis|Thyrotoxic periodic | * [[periodic paralysis|Thyrotoxic periodic paralysis]] | ||
* [[Tolterodine]] | * [[Tolterodine]] | ||
* [[Transposition of the great | * [[Transposition of the great vessels]] | ||
* [[vagus nerve|Vagal maneuvers]] | * [[vagus nerve|Vagal maneuvers]] | ||
* [[Valsalva | * [[Valsalva maneuvers]] | ||
* [[Valvular heart disease]] | * [[Valvular heart disease]] | ||
* [[Verapamil]] | * [[Verapamil]] | ||
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{{Reflist|2}} | {{Reflist|2}} | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Up-To-Date]] | [[Category:Up-To-Date]] | ||
[[Category:Up-To-Date cardiology]] | [[Category:Up-To-Date cardiology]] | ||
[[Category:Arrhythmia]] | [[Category:Arrhythmia]] | ||
[[Category:Electrophysiology]] | |||
[[Category:Disease]] | [[Category:Disease]] | ||
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Revision as of 19:23, 6 September 2013
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Second degree AV block Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Second degree AV block causes On the Web |
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American Roentgen Ray Society Images of Second degree AV block causes |
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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]
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
- Calcific aortic stenosis
- 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
- β blockers