High‐Density Spectral Analysis for Bi‐Atrial Arrhythmogenic Substrate During Non‐Paroxysmal Atrial Fibrillation

Nobunari Tomura, Keitaro Senoo, Taku Ohkawa, Yusuke Kakei, Kohei Kawai, Masahiro Makino, Jun Munakata, Tomonori Miki, Yukinori Kato, Kento Fukui, Hiroki Kitajima, Suguru Nishiuchi · 2026

Read High‐Density Spectral Analysis for Bi‐Atrial Arrhythmogenic Substrate During Non‐Paroxysmal Atrial Fibrillation by Nobunari Tomura, Keitaro Senoo, Taku Ohkawa, Yusuke Kakei, Kohei Kawai, Masahiro Makino, Jun Munakata, Tomonori Miki, Yukinori Kato, Kento Fukui, Hiroki Kitajima, Suguru Nishiuchi (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/PMC13591222.txt.

Description

Nobunari Tomura leads a team mapping the faulty electrical tissue that keeps a chaotic heart rhythm going in 47 patients with lasting atrial fibrillation. A dense mapping system recorded signals from both upper heart chambers before treatment, yielding more than 48,000 points. The team measured each point for its dominant rate and regularity, then compared spots where waves spread from one focus or spun in circles.

Both kinds of suspect spots showed higher rate shifts and regularity than quiet tissue. Left chamber values topped right chamber ones, with the roof highest of all. Repeated focal spots scored higher still, while much repeated spinning spots gave a mixed picture. Tomura and the team say the pairing of mapping and spectral checks may clarify how this rhythm sustains itself.

Catalog record

CREATORNobunari Tomura, Keitaro Senoo, Taku Ohkawa, Yusuke Kakei, Kohei Kawai, Masahiro Makino, Jun Munakata, Tomonori Miki, Yukinori Kato, Kento Fukui, Hiroki Kitajima, Suguru Nishiuchi
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE20 KB
LICENSEhttps://creativecommons.org/licenses/by/4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/article/MED/PMC13591222

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