| Atrial tachycardia originating from the upper left atrial septum: demonstration of transseptal interatrial conduction using the infolded atrial walls. | |
| | |
MedLine Citation:
|
PMID: 16903971 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
We report a rare case of atrial tachycardia (AT) originating from the upper left atrial septum. Electroanatomic mapping of both atria demonstrated that the earliest atrial activation during AT occurred at the upper left atrial septum 26 msec before the onset of the P wave, followed by the mid-right atrial septum (10 msec before the onset of the P wave) and then the upper right atrial septum just adjacent to the left septal AT site (1 msec before the onset of the P wave), indicating detour pathway conduction from the upper left to the upper right atrium. Embryologically, it was suggested that the superior components of the secondary atrial septum are made by the infolded atrial walls and could develop a transseptal detour pathway involving the left-side atrial septal musculature, the superior rim of the oval fossa and the right-side atrial septal musculature. A single radiofrequency application targeting the upper left atrial septum successfully abolished the AT. |
| | |
Authors:
|
Koji Kumagai; Fumio Suzuki; Kazutaka Aonuma; Hiroaki Shimokawa |
Publication Detail:
|
Type: Case Reports; Journal Article |
Journal Detail:
|
Title: Journal of cardiovascular electrophysiology Volume: 17 ISSN: 1045-3873 ISO Abbreviation: J. Cardiovasc. Electrophysiol. Publication Date: 2006 Aug |
Date Detail:
|
Created Date: 2006-08-14 Completed Date: 2006-12-04 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9010756 Medline TA: J Cardiovasc Electrophysiol Country: United States |
Other Details:
|
Languages: eng Pagination: 907-11 Citation Subset: IM |
Affiliation:
|
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan. kkumagai@cardio.med.tohoku.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Body Surface Potential Mapping Catheter Ablation Female Heart Atria Heart Conduction System / physiopathology* Heart Septum / physiopathology* Humans Tachycardia, Ectopic Atrial / etiology*, physiopathology, surgery |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: An unusual form of bundle branch reentrant tachycardia.
Next Document: Plasma lipid concentrations after 1.5 years of exposure to nevirapine or efavirenz together with sta...