Published on behalf of the European Society of Cardiology. LBBAP may be an alternative to CRT in patients with failure of LV lead placement and a first-line option in selected patients such as those with LBBB and heart failure.īundle branch block Cardiac resynchronization therapy Heart failure Left bundle branch area pacing Right ventricular pacing-induced cardiomyopathy.
When this happens, the electric impulse has to travel further to. Left bundle branch area pacing generated narrow QRSd and led to reversal remodelling of LV with improvement in cardiac function. Left bundle branch block is a condition in which there’s a slowing along the electrical pathway to your heart’s left ventricle. Teaching Series: Atrial Fibrillation With Left Bundle Branch Block Submitted by Dawnon Thu, - 23:28 This is a good example of atrial fibrillation with left bundle branch block. The present study demonstrates the clinical feasibility of LBBAP in CRT-indicated patients. There was a significant improvement (34.1 ± 7.4% vs. During the mean follow-up of 9.1 months, New York Heart Association functional class was improved to 1.4 ± 0.6 from baseline 2.6 ± 0.6 (P < 0.001), left ventricular ejection fraction (LVEF) increased to 46.9 ± 10.2% from baseline 35.2 ± 7.0% (P < 0.001), and LV end-diastolic dimensions (LVEDD) decreased to 56.8 ± 9.7 mm from baseline 64.1 ± 9.9 mm (P < 0.001). The QRS duration (QRSd) was significantly shortened by LBBAP (intrinsic 163.6 ± 29.4 ms vs. Kind of like two separate (QRS) contractions overlapping out of sync (see below). Of 25 enrolled CRT-indicated patients, 14 had left bundle branch block (LBBB, 56.0%), 3 right bundle branch block (RBBB, 12.0%), 4 intraventricular conduction delay (IVCD, 16.0%), and 4 ventricular pacing dependence (16.0%). Pacing parameters, procedural characteristics, electrocardiographic, and echocardiographic data were assessed at implantation and follow-up.
LBBAP was performed via transventricular septal approach in 25 patients as a rescue strategy in 5 patients with failed left ventricular (LV) lead placement and as a primary strategy in the remaining 20 patients. Left Bundle Branch Block - StatPearls - NCBI Bookshelf (LBBB) is the most pathogenic conduction disturbance because this condition can cause left ventricular dysfunction and even dilatation. The present study was to evaluate the feasibility and clinical outcomes of left bundle branch area pacing (LBBAP) in cardiac resynchronization therapy (CRT)-indicated patients. IVCD is associated with increased mortality in patients with heart diseases, especially in those with myocardial infarction or heart failure.
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