PMID: 7547028Sep 1, 1995Paper

The earliest site of atrial activation in patients with isomeric appendages

British Heart Journal
H UemuraR H Anderson

Abstract

The sinus node is known to be duplicated in hearts with bilateral right appendages, but its site is uncertain when both appendages are of morphologically left pattern. To determine the earliest site of activation of the atria, and to assess this site of activation relative to the anticipated location of the sinus node in patients with isomeric atrial appendages. Electrophysiological recordings by epicardial mapping during operations through a median sternotomy. Since 1987, 44 consecutive patients with isomeric right appendages and 23 with isomeric left appendages. In 77% of the patients with isomeric right appendages, the site of earliest activation was superiorly located at the junction of one or other atrium and a superior caval vein; in other words, in the anticipated site of a sinus node. In contrast, an inferior site of earliest activation at the junction of an atrium with an hepatic vein was most common in patients with isomeric left appendages (56%). The site of earliest activation was not related to the veno-atrial junctions in six patients with isomeric right appendages (14%), nor in five with isomeric left appendages (22%). Moreover, in six patients with isomeric right appendages (13%), and three with isomeric left ap...Continue Reading

References

May 1, 1979·Circulation·D F DickinsonR H Anderson
Sep 1, 1992·International Journal of Cardiology·S RadhakrishnanR Bajaj
Jul 1, 1991·Pediatric Pathology·S Y HoN Fagg
Jan 15, 1990·The American Journal of Cardiology·K MommaT Shibata
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Jan 1, 1993·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·M RespondekJ Wilczynski

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Citations

Dec 17, 1998·Cardiology in the Young·H Uemura
Apr 2, 2002·Circulation Journal : Official Journal of the Japanese Circulation Society·Takafumi KojiTakeshi Nakano
Apr 15, 2003·Cardiology in the Young·Hideki Uemura

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