Document Detail


Atrial tachycardia originating at the tricuspid annulus.
MedLine Citation:
PMID:  17285448     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We report a patient with re-entrant atrial tachycardia that originated at the inferolateral tricuspid annulus. Single atrial extra-stimulation reproducibly induced the atrial tachycardia with an inverse relationship between the coupling interval of extra-stimulation and the return cycle of the first tachycardia beat. A real-time three-dimensional electroanatomical mapping showed focal atrial activation spreading semi-radially from the tricuspid annulus. The tachycardia was successfully eliminated by radiofrequency ablation at the earliest atrial activation site, preceding by 27 ms the arbitrary determined onset of surface P wave. An accelerated atrial rhythm with similar P-wave morphology to that of the tachycardia was observed at the successful ablation site during radiofrequency application. The mechanism of this tachycardia seems to be due to re-entry originating in or around the possible accessory atrioventricular node without ventricular connection.
Authors:
Yuji Okuyama; Hiroya Mizuno; Takafumi Oka; Sei Komatsu; Atsushi Hirayama; Kazuhisa Kodama
Related Documents :
19593958 - Paroxysmal bidirectional ventricular tachycardia with tachycardiomyopathy in a pregnant...
832498 - Paroxysmal supraventricular tachycardia with unusual induction. concealed reentry or au...
6691738 - The treatment of malignant ventricular arrhythmias with combined endocardial resection ...
1262778 - Spontaneous atrial premature depolarizations during paroxysmal reentrant tachycardia.
18287678 - Mechanical measurement of contractile function of isolated ventricular myocytes.
1452928 - Flosequinan, a new vasodilator: systemic and coronary hemodynamics and neuroendocrine e...
Publication Detail:
Type:  Case Reports; Journal Article     Date:  2007-01-26
Journal Detail:
Title:  Heart and vessels     Volume:  22     ISSN:  0910-8327     ISO Abbreviation:  Heart Vessels     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-02-07     Completed Date:  2007-10-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511258     Medline TA:  Heart Vessels     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  55-8     Citation Subset:  IM    
Affiliation:
Cardiovascular Division, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka, 543-0035, Japan. y-okuyama@oph.gr.jp
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Catheter Ablation
Electrocardiography
Electrophysiologic Techniques, Cardiac*
Humans
Male
Middle Aged
Tachycardia / physiopathology*,  surgery
Tricuspid Valve / physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Primary cardiac lymphoma presenting as atrial flutter and total heart block.
Next Document:  A case of takotsubo cardiomyopathy associated with epileptic seizure: reversible left ventricular wa...