In right bundle branch block (RBBB), the right ventricle depolarizes after the left ventricle, allowing its electrical vectors to become evident. These vectors manifest in the later part of the QRS complex as an R’ wave (pronounced “R prime”), which is directed anteriorly and rightward.

2020年9月14日 · Right bundle branch block (RBBB) is frequently found in the general healthy population. RBBB is caused by diseases that affect the right bundle branch or the myocardial region, where the right bundle branch is located. Possible causes include trauma, structural changes, infiltrative diseases (eg, sarcoidosis), myocarditis, and myocardial ...

2024年10月8日 · RBBB: Right Bundle Branch Block V1: RSR’ pattern in V1, with (appropriate) discordant T wave changes V6: Widened, slurred S wave in V6. Associated features incude: Appropriate discordance with ST depression and/or T-wave inversion in …

2024年10月5日 · RBBB doesn't affect the net QRS axis, although it does produce some terminal right-axis deviation. When determining the axis focus on the initial 60-80 ms (ignore the terminal, low-voltage components at the end of the QRS complex).

2023年12月15日 · Right bundle branch block (RBBB) is an abnormal cardiac pattern seen on an ECG. It does not have any symptoms and is not typically serious on its own. RBBB indicates a partial or complete block of the electrical impulse to the lower right chamber of the heart.

RBBB, a pattern seen on the 12-lead ECG, results when normal electrical activity in the His-Purkinje system is interrupted for some reason. The normal sequence of activation is altered in RBBB, with a resultant characteristic appearance on the ECG manifest by a widened QRS complex and changes in the directional vectors of the R and S waves.

2023年8月8日 · Right bundle branch block (RBBB) is an electrocardiogram finding that occurs when the physiologic electrical conduction system of the heart, specifically in the His-Purkinje system, is altered or interrupted resulting in a widened QRS …

2017年12月12日 · What are the main ECG pointers for RBBB in ACS? Look for appropriate discordance between the QRS complex and ST-T. Look for subtle ST-segment findings after the J-point (isoelectric baseline). A RBBB in setting of ACS is an independent predictor of 30-day mortality, so definitely keep an eye on these patients when they are in your ED.

A growing body of evidence suggests that the presence of a right bundle branch block (RBBB) is a negative prognostic indicator in patients with and without preexisting heart disease. Even though electromechanical activation of the right ventricle ...

2019年6月21日 · Right bundle branch block may indicate pathology in the right side of the heart e.g. right ventricular strain (especially due to pulmonary embolism). Right bundle branch block may occur in other pathologies e.g. atrial septal defect …