Second degree AV block causes
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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
Life threatening causes of second degree AV block include acute myocardial infarction, acute rheumatic fever, myocarditis, and severe hypothermia. Common causes include endocarditis, digoxin, dilated cardiomyopathy, diltiazem, and calcific aortic stenosis.
Causes
Life Threatening Causes
Life-threatening conditions can result in death or permanent disability within 24 hours if left untreated[1].
- Acute myocardial infarction[2][3]
- Acute rheumatic fever
- Bacterial endocarditis
- Myocarditis
- Severe hypothermia
Common Causes
- Acute rheumatic fever
- Bacterial endocarditis[4]
- 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[5]
- Penetrating and non-penetrating trauma of the chest
- Sclerodegenerative disease of the electrical conduction system
- Verapamil
- β blockers
Causes by Organ System
Causes in Alphabetical Order
Contraindicated medications
Second degree AV block(except in patients with a functioning artificial pacemaker)[7][8] is considered an absolute contraindication to the use of the following medications:
- Adenosine
- Atenolol
- Betaxolol
- Bisoprolol
- Brimonidine tartrate and Timolol maleate
- Carteolol
- Diltiazem
- Disopyramide
- Dronedarone
- Flecainide
- Metoprolol
- Mexiletine
- Nadolol
- Nebivolol
- Penbutolol
- Pindolol
- Propranolol
- Sotalol
- Timolol
- Labetalol[9]
References
- ↑ Mangi MA, Jones WM, Napier L. PMID 29493981. Missing or empty
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(help) - ↑ Misumida N, Ogunbayo GO, Kim SM, Abdel-Latif A, Ziada KM, Elayi CS (November 2018). "Frequency and Significance of High-Degree Atrioventricular Block and Sinoatrial Node Dysfunction in Patients With Non-ST-Elevation Myocardial Infarction". Am. J. Cardiol. 122 (10): 1598–1603. doi:10.1016/j.amjcard.2018.08.001. PMID 30227965.
- ↑ Barold SS, Herweg B (December 2012). "Second-degree atrioventricular block revisited". Herzschrittmacherther Elektrophysiol. 23 (4): 296–304. doi:10.1007/s00399-012-0240-8. PMID 23224264.
- ↑ Kamatani T, Akizuki A, Kondo S, Shirota T (Fall 2016). "Second-Degree Atrioventricular Block Occurring After Tooth Extraction". Anesth Prog. 63 (3): 156–9. doi:10.2344/15-00042.1. PMC 5011958. PMID 27585419.
- ↑ Wogan JM, Lowenstein SR, Gordon GS (1993). "Second-degree atrioventricular block: Mobitz type II". J Emerg Med. 11 (1): 47–54. doi:10.1016/0736-4679(93)90009-v. PMID 8445186.
- ↑ Menicagli F, Lanza A, Sbrocca F, Baldi A, Spugnini EP (2016). "A case of advanced second-degree atrioventricular block in a ferret secondary to lymphoma". Open Vet J. 6 (1): 68–70. doi:10.4314/ovj.v6i1.10. PMC 4833871. PMID 27200273.
- ↑ Brignole M, Deharo JC, Guieu R (August 2015). "Syncope and Idiopathic (Paroxysmal) AV Block". Cardiol Clin. 33 (3): 441–7. doi:10.1016/j.ccl.2015.04.012. PMID 26115830.
- ↑ Kelkar PN (August 1998). "Atenolol induced high grade AV block". J Assoc Physicians India. 46 (8): 748, 751. PMID 11229299.
- ↑ Zeltser D, Justo D, Halkin A, Rosso R, Ish-Shalom M, Hochenberg M, Viskin S (July 2004). "Drug-induced atrioventricular block: prognosis after discontinuation of the culprit drug". J. Am. Coll. Cardiol. 44 (1): 105–8. doi:10.1016/j.jacc.2004.03.057. PMID 15234417.