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).
The electrocardiogram was unchanged from prior examinations with a bifascicular
block, but no QT prolongation.
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.