Conduction Defects

Pádua, Fernando de; Pereirinha, Armando; Marques, Nuno; Lopes, Mário G.; Macfarlane, Peter W.

doi:10.1007/978-1-84882-046-3_14

Cited by 5 publications

(4 citation statements)

References 205 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A functional or anatomical block at one or more levels in the conduction system can cause LBBB 2). It can occur at the His bundle level (dedicated fibers to LB) before its bifurcation, the left bundle branch level, the left fascicle level (due to variation in the anatomy of fascicles3)), or diffuse disease of the very distal ramifications of the left bundle.…”

Section: Discussionmentioning

confidence: 99%

Supraventricular Tachycardia and Sinus Rhythm with Contralateral Bundle Branch Block Patterns

2014

View full text Add to dashboard Cite

A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia. We report on a middle-aged, female patient presented with wide QRS tachycardia. The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system. We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.

show abstract

Section: Discussionmentioning

confidence: 99%

Supraventricular Tachycardia and Sinus Rhythm with Contralateral Bundle Branch Block Patterns

2014

View full text Add to dashboard Cite

show abstract

“…Prominent final R wave in lead aVR is characteristic of RECD, and useful criteria to differentiate it from left anterior fascicular block (LAFB) 26 . There is no anatomical confirmation that the right bundle is divided in three branches as the left bundle is, however; the isolated block of one of the three contingent or right branch divisions inside the right ventricle free wall, is generically called RECD 27…”

Section: Diagnosis Of “Right Ventricular End Conduction Delay” (Recd)mentioning

confidence: 99%

Clinical Value of Lead aVR

Pérez‐Riera

Ferreira

Dubner

et al. 2011

Annals of Noninvasive Electrocardiology

View full text Add to dashboard Cite

Lead aVR is the only lead in the surface ECG that does not face the "typically" relevant walls of the left ventricle. Historically, its value has been neglected most likely due to its unusual configuration and direction, which appeared to have little correlation with other more congruous and easily diagnostic frontal leads. The isolation of the unipolar leads in the Standard surface ECG presentation may also have played an important role. Even with this "unfair" neglect, we know nowadays that it is very sensitive to locate obstructed epicardial coronary arteries. Besides helping distinguishing the culprit lesion of an infarct, lead aVR also helps recognizing other conditions that could be of clinical significance such as pericarditis, Brugada syndrome, fascicular blocks of the right branch, ectopic left atrial rhythms, etc. The purpose of this review is to revise the clinical value of lead aVR in the recognition of frequent and not so frequent clinical conditions.

show abstract

“…The description of trifascicular block in 2012 Macfarlane's book on Electrocardiology is a good example. 4 evidence for block in all three fascicles on successive ECGs; examples are LBBB and RBBB morphologies on successive ECGs, or RBBB with associated left anterior fascicular block on one ECG and left posterior fascicular block on another ECG. There is general consensus that this phenomenon is associated with significant infranodal disease and that patients will progress rapidly toward AVB.…”

mentioning

confidence: 99%

Controversies about the terminology of “trifascicular” block

Barold

2023

Cardiovasc electrophysiol

View full text Add to dashboard Cite

Conduction Defects

Cited by 5 publications

References 205 publications

Supraventricular Tachycardia and Sinus Rhythm with Contralateral Bundle Branch Block Patterns

Supraventricular Tachycardia and Sinus Rhythm with Contralateral Bundle Branch Block Patterns

Clinical Value of Lead aVR

Controversies about the terminology of “trifascicular” block

Contact Info

Product

Resources

About