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 …

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.

2024年10月5日 · RBBB interpretation algorithm: axis. 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). (O'Keefe 2021) LAD has four major causes [1] Fascicular VT.

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 …

2025年3月17日 · Electrocardiogram with right bundle branch block: wide QRS complex (>120 ms). Lead V1 shows an rSR’ pattern (broad R’ wave) and lead V6 shows a qRS pattern (broad S wave). Abnormal depolarization of both ventricles also causes abnormal repolarization. T wave inversions in V1 and V2 are a characteristic finding in right bundle branch block.

2025年1月14日 · Right Bundle Branch Block (RBBB) and Left Bundle Branch Block (LBBB) are heart conduction issues that show distinct patterns on an ECG. Here’s what you need to know: RBBB: Look for the rSR’ "rabbit ears" pattern in V1-V2, deep S waves in lateral leads, and a QRS duration ≥0.12 seconds.

Discover RBBB causes, heart vector effects, and ECG insights. Learn about RBBB in leads V1/V6, incomplete RBBB, and the Ashman phenomenon.

2025年1月14日 · Want to quickly identify Right Bundle Branch Block (RBBB) and Left Bundle Branch Block (LBBB) on an ECG? Here’s what you need to know: RBBB: Look for an "M-shaped" RSR’ pattern in lead V1 and a broad, slurred S-wave …

Right bundle branch block (RBBB) is an electrocardiographic phenomenon with specific criteria [1, 2]: QRS duration > 120 msec; broad and/or notched R waves (rsr`, rsR` or rSR` pattern) in the right precordial leads (leads V1 and V2) and wide and/or deep S waves in leads I and V6.

其中右束支兴奋传导发生障碍称为 右束支阻滞 （right bundle branch block；RBBB）。 到达房室交界区的兴奋，由于希氏束以下右束支发生阻滞，不能传导至右室。 所以先由具有正常传导功能的左束支的激动兴奋左束支，然后激动再从左心室传到右心室。 因此，右心室自由壁、室间隔右室侧的激动延迟。 Ⅰ、aVL、V5、V6呈增宽且有切迹的S波。 ST-T：右侧胸部导联（V1、V2）出现继发性ST-T改变（与QRS的主波方向相反）。 完全性右束支阻滞心电图： 不完全性右束支阻滞 …