The QRS Alternation
We present an electrocardiogram of atrial flutter with atypical, paradoxical QRS alternation, and describe the possible mechanisms as well as the further studies needed to define the most likely cause. The electrophysiological considerations are important for differentiating between functional and organic conduction blocks in identifying the correct pacemaker indication.
Authors
- Morio Shoda
- Yuko Matsui (ORCID: https://orcid.org/0000-0002-1240-434X)
- Satoshi Higuchi (ORCID: https://orcid.org/0000-0003-1644-3140)
- Melvin M. Scheinman (ORCID: https://orcid.org/0000-0002-3793-1867)
- Daigo Yagishita
Institutions
- University of California, San Francisco (US)
- Tokyo Women's Medical University (JP)
Publication Details
- Journal
- JACC Case Reports
- Published
- 2025-01-22
- DOI
- https://doi.org/10.1016/j.jaccas.2024.102970
- Primary Topic
- Cardiac Arrhythmias and Treatments
- Type
- article
- Field-Weighted Citation Impact
- 0.00