Exclusion criteria were defined as one or more of the following: II or III degree atrioventricular block, bifascicular
block or trifascicular block, persist or permanent AF, rheumatoid valvular heart disease, or a history of ventricular tachycardia.
Both heads converge in short, wide, flattened, and bifascicular
tendon inserting in the humerus, lateral to the bicipital groove.
Electrocardiographic features of arrhythmic syncope * Non-sustained VT * Bifascicular
block (LBBB or RBBB combined with left anterior or left posterior fascicular block) or other intraventricular conduction delay with QRS >120 ms * Sinus bradycardia (<50 bpm or sinoatrial block in absence of negative chronotropic medications or physical training) * Pre-excited QRS complex * Prolonged or shortened QT interval * RBBB pattern with ST elevation in V1--V3 (Brugada pattern) * Negative T waves in the right praecordial leads, epsilon waves, and ventricular late potentials suggestive of ARVC ARVC = arrhythmogenic right ventricular cardiomyopathy; LBBB = left bundle branch block; RBBB = right bundle branch block; VT = ventricular tachycardia.
Tenia historia de cardiopatia dilatada biventricular idiopatica, con fraccion de eyeccion del ventriculo izquierdo (FEVI) del 10%, falla cardiaca en estadio D, de clase funcional IV, hipertension pulmonar con presion sistolica de arteria pulmonar (PSAP) de 65 mm Hg (ecocardiograma) y de 41 mm Hg (cateter de la arteria pulmonar), y bloqueo bifascicular
abnormalities typical of Chagas disease such as bifascicular
blocks and conduction alterations (Arribada et al.
An electrocardiogram (EKG) revealed a bifascicular
heart block, which was not new based on older EKGs.
complete atrialventricular block, second degree Mobitz II atria l-ventricular block), bifascicular
block, congestive heart failure, ischemic heart disease, left ventricular hypertrophy, and valvulopathy (1, 2).
Features that deduct points from the total include the presence of cyanosis or diabetes, which each deduct 4 points, and bifascicular
block, which cuts 3 points.
The incidence of progression of chronic bifascicular
block (RBBB + LAFB or RBBB + LPFB) to complete atrioventricular block is low, and in the absence of symptoms prophylactic permanent pacemaker implantation is not warranted.
A recent study investigated the prognosis and SCD risk in a cohort of 100 patients with bifascicular
Isolated new block in only one of the three fascicles even with P-R prolongation, and preexisting bifascicular
block and normal P-R interval poses somewhat less risk: these patients should be monitored closely, with insertion of a temporary PM deferred unless higher degree AV block occurs.