Bifascicular block

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Bifascicular block Classification and external resources
ICD-10	I45.2
ICD-9	426.53

Bifascicular block is a conduction abnormality in the heart where two of the three main fascicles of the His/Purkinje system are blocked.

Most commonly, it refers to a combination of right bundle branch block (RBBB) and either left anterior fascicular block (LAFB) or left posterior fascicular block (LPFB).

Some authors consider left bundle branch block (LBBB) to be a technical bifascicular block, since the block occurs above the bifurcation of the left anterior and left posterior fascicles of the left bundle branch.

[edit] External links

• 1584070658 at GPnotebook
• http://sprojects.mmi.mcgill.ca/heart/ecg970516-7dx.html
• http://library.med.utah.edu/kw/ecg/mml/ecg_12lead047.html

v • d • e Cardiovascular disease: heart disease - Circulatory system pathology (I00-I52, 390-429) Ischaemic heart disease CHD: CAD - Coronary thrombosis - Coronary vasospasm - Coronary artery aneurysm Angina pectoris (Prinzmetal's angina) - Myocardial infarction (heart attack) Acute coronary syndrome - Myocardial rupture - Dressler's syndrome Pericardium Pericarditis (Acute pericarditis, Constrictive pericarditis) - Pericardial effusion - Cardiac tamponade Endocardium/ heart valves Endocarditis (Subacute bacterial endocarditis) mitral (regurgitation, prolapse, stenosis) - aortic (stenosis, insufficiency) - pulmonary (stenosis, insufficiency) - tricuspid (stenosis, insufficiency) Myocardium Myocarditis - Cardiomyopathy (Dilated cardiomyopathy, Hypertrophic cardiomyopathy, Loeffler endocarditis, Restrictive cardiomyopathy, Alcoholic cardiomyopathy) - Arrhythmogenic right ventricular dysplasia Electrical conduction/ arrhythmia heart block: AV (1°, 2°, 3°) - Bundle branch (Left, Right) - Bifascicular - Trifascicular - Sinoatrial - Sick sinus syndrome - Adams-Stokes syndrome pre-excitation syndrome: Wolff-Parkinson-White - Lown-Ganong-Levine tachycardia: Paroxysmal - Supraventricular (AV nodal reentrant, Accelerated idioventricular rhythm, Sinus) - Ventricular (Torsades de pointes) premature contraction: Atrial - Ventricular flutter/fibrillation: Atrial flutter - Ventricular flutter - Atrial fibrillation (Familial) - Ventricular fibrillation pacemaker: Wandering pacemaker - Ectopic pacemaker - Parasystole long QT syndrome: Romano-Ward syndrome - Andersen-Tawil syndrome - Jervell and Lange-Nielsen syndrome cardiac arrest: Sudden cardiac death Other Cardiomegaly - Ventricular hypertrophy (Left, Right) Cor pulmonale Heart failure - Rheumatic fever See also congenital (Q20-Q28, 745-747)