Beyond QRS Duration: Myocardial Work Indices for the Assessment of Left Bundle Branch Block
Myocardial work-derived indices of left ventricular dyssynchrony are strongly associated with QRS duration and the presence of LBBB in patients with HFrEF. Among them, MWI dispersion (IQR) was shown to be the best-performing MW marker for identifying LBBB. These findings suggest that MW dispersion may serve as a robust echocardiographic marker of mechanical dyssynchrony and warrants further investigation as a potential tool for predicting CRT response.
Authors
- Beata Uziębło‐Życzkowska (ORCID: https://orcid.org/0000-0001-8997-6568)
- Małgorzata Maciorowska (ORCID: https://orcid.org/0000-0001-5242-7522)
- Marek Kiliszek (ORCID: https://orcid.org/0000-0002-7935-1756)
- Magdalena Potapowicz-Krysztofiak (ORCID: https://orcid.org/0009-0006-1761-8861)
- P K Pawel Krzesinski
- Martyna Dąbrowska (ORCID: https://orcid.org/0009-0006-4532-2494)
- Zbigniew Orski (ORCID: https://orcid.org/0000-0002-9264-3550)
Institutions
- Wojskowy Instytut Medycyny Lotniczej (PL)
Publication Details
- Journal
- Biomedicines
- Published
- 2026-04-21
- DOI
- https://doi.org/10.3390/biomedicines14040941
- Primary Topic
- Cardiac pacing and defibrillation studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00