Fast broad irregular tachycardia (FBIT): Not always atrial tachyarrhythmias with aberrancy or pre-excitation
Daljeet Kaur Saggu, Vickram Vignesh Rangaswamy, Anish Reddy Malugari, Muthiah Subramaniam, Sachin Yalagudri, C Narasimhan · 2026
Read Fast broad irregular tachycardia (FBIT): Not always atrial tachyarrhythmias with aberrancy or pre-excitation by Daljeet Kaur Saggu, Vickram Vignesh Rangaswamy, Anish Reddy Malugari, Muthiah Subramaniam, Sachin Yalagudri, C Narasimhan (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13541584.txt.
Description
Daljeet Kaur Saggu and colleagues warned that a fast, broad, uneven heartbeat is not always an atrial rhythm problem. Published in 2026, the case series drew seven such patients from a 615-person heart-swelling registry. All seven had normal-shaped hearts and no sign of pre-excitation or typical atrial rhythm trouble on baseline tracings.
The seven ran near 40 years old on average, and four needed tube-based ablation for drug-proof rhythm storms, with extra rhythms set off in three. On their own, starts and stops plus shifting shapes marked the spells, while voltage maps found no target for tissue change. No atrial rhythms could be provoked in this group. All seven answered illness-targeted care, so the authors urge keeping a lower-chamber fast beat in mind when FBIT lacks atrial clues.
Catalog record
| CREATOR | Daljeet Kaur Saggu, Vickram Vignesh Rangaswamy, Anish Reddy Malugari, Muthiah Subramaniam, Sachin Yalagudri, C Narasimhan |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 18 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |