News

Objectives Electrocardiographic bundle branch block (BBB) is common but the prognostic implications in primary care are unclear. We sought to investigate the relationship between electrocardiographic ...
Aim Left bundle branch block (LBBB) is associated with an increased risk of heart failure (HF). We assessed the impact of common ECG parameters on this association using large-scale data.Methods and ...
Eligible heart failure patients with a wide QRS complex spent more time alive after use of a cardiac resynchronization therapy defibrillator ... 70.2% had left bundle-branch block, ...
Left bundle branch block (LBBB) is a problem that disrupts your heartbeat. ... However, the QRS complex is much wider with left bundle branch block, often greater than 0.12 seconds. Differential ...
In contrast, patients with right bundle branch block (RBBB) did not appear to derive a benefit from CRT, regardless of QRS duration. The findings, researchers say, have implications for guideline ...
Although randomized CRT trials initially enrolled patients based on QRS duration (≥120 ms) rather than morphology, many clinicians subsequently inferred that CRT was only consistently effective for ...
Introduction: QRS duration in patients with left bundle branch block (LBBB) predicts adverse clinical outcomes and response to cardiac resynchronization therapy (CRT). Changes in LBBB QRS duration ...
Panel C in the figure illustrates the ECG changes that occur in the QRS complex with a right bundle branch block—a widened QRS wave with a downward deflection. Sometimes, both bundle branches are ...