A case of widely split double P waves with marked intra-atrial conduction delay

Kyoko Soejima, Hideo Mitamura, Toshihisa Miyazaki, Makoto Akaishi, Shunnichiro Miyoshi, Satoshi Ogawa, Masato Tani, Ken Shinnmura, Yoshiro Nakamura

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We report a 78-year-old man as the first documented case of double P waves separated by 400 msec on 12-lead ECG. These P waves had different polarities on lead V1. The first P wave represented activation of the lateral wall of the right atrium, and the latter P wave represented activation of the medial right atrium and the left atrium. Widely spaced double potentials were recorded craniocaudally along the line, presumably corresponding to the crista terminalis during sinus rhythm. For this to occur, conduction disturbance has to be present both in the upper and lower right atrium. Conduction disturbance in the upper right atrium would interrupt excitation from the sinus node to the medial wall, and conduction disturbance in the lower right atrium would interrupt excitation spreading from the lower lateral right atrium to the isthmus area where fragmented potentials were recorded. These multiple discrete lesions appear to constitute a unique electrical atriopathy in this patient.

本文言語English
ページ(範囲)1296-1301
ページ数6
ジャーナルJournal of Cardiovascular Electrophysiology
8
11
DOI
出版ステータスPublished - 1997 1 1

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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