BIOMAT Database Logo BIOMAT Database Logo

Two atrial reentrant tachycardias originating from the superior vena cava: electrophysiological characteristics and radiofrequency ablation. 2006

Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Cardiovascular center, Kyoto Katsura Hospital, Kyoto, Japan. kcvc.mizobuchi@katsura-hp.jp

A case with two different types of atrial reentrant tachycardia of superior vena cava (SVC) origin is presented. Recent clinical studies have shown that the origin of focal atrial tachycardia typically lies in the venous structures connecting to both atria--the coronary sinus, the superior and inferior vena cava, and the pulmonary vein. These foci have atrial muscle fiber extensions which have electrophysiological characteristics essential to generation of focal ectopic firing. However, little is known about reentrant mechanism of these venous structures. In this report, we present a case of two atrial tachycardias (SVT1 and SVT2) independently originating from the SVC. SVT1 had 430 ms of tachycardia cycle length, and SVT2 had 390 ms of tachycardia cycle length. Both of them showed the character of reentry, and their earliest activations were recorded in the SVC. They were successfully eliminated by focal radiofrequency ablation in the SVC.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013611 Tachycardia, Atrioventricular Nodal Reentry Abnormally rapid heartbeats caused by reentry of atrial impulse into the dual (fast and slow) pathways of ATRIOVENTRICULAR NODE. The common type involves a blocked atrial impulse in the slow pathway which reenters the fast pathway in a retrograde direction and simultaneously conducts to the atria and the ventricles leading to rapid HEART RATE of 150-250 beats per minute. Atrioventricular Nodal Re-Entrant Tachycardia,Atrioventricular Nodal Reentry Tachycardia,Atrioventricular Reentrant Tachycardia,Tachycardia, AV Nodal Reentrant,AV Nodal Reentrant Tachycardia,Atrioventricular Nodal Reentrant Tachycardia,Atrioventricular Nodal Re Entrant Tachycardia,Atrioventricular Reentrant Tachycardias,Reentrant Tachycardia, Atrioventricular,Tachycardia, Atrioventricular Reentrant
D013612 Tachycardia, Ectopic Atrial Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer. Atrial Ectopic Tachycardia,Ectopic Atrial Tachycardia,Atrial Ectopic Tachycardias,Atrial Tachycardia, Ectopic,Atrial Tachycardias, Ectopic,Ectopic Atrial Tachycardias,Ectopic Tachycardia, Atrial,Ectopic Tachycardias, Atrial,Tachycardia, Atrial Ectopic,Tachycardias, Atrial Ectopic,Tachycardias, Ectopic Atrial
D013615 Tachycardia, Sinoatrial Nodal Reentry Abnormally rapid heartbeats caused by reentry circuit in or around the SINOATRIAL NODE. It is characterized by sudden onset and offset episodes of tachycardia with a HEART RATE of 100-150 beats per minute. The P wave is identical to the sinus P wave but with a longer PR interval. Sinoatrial Nodal Reentry Tachycardia,Tachycardia, SA Nodal Reentrant,Sinus Node Reentrant Tachycardia
D013617 Tachycardia, Supraventricular A generic expression for any tachycardia that originates above the BUNDLE OF HIS. Supraventricular Tachycardia,Supraventricular Tachycardias,Tachycardias, Supraventricular
D014683 Vena Cava, Superior The venous trunk which returns blood from the head, neck, upper extremities and chest. Superior Vena Cava,Superior Vena Cavas,Vena Cavas, Superior
D017115 Catheter Ablation Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias. Ablation, Transvenous Electric,Catheter Ablation, Electric,Catheter Ablation, Percutaneous,Catheter Ablation, Radiofrequency,Catheter Ablation, Transvenous,Ablation, Catheter,Ablation, Transvenous Electrical,Catheter Ablation, Electrical,Electric Catheter Ablation,Electrical Catheter Ablation,Percutaneous Catheter Ablation,Radiofrequency Catheter Ablation,Transvenous Catheter Ablation,Ablation, Electric Catheter,Ablation, Electrical Catheter,Ablation, Percutaneous Catheter,Ablation, Radiofrequency Catheter,Ablation, Transvenous Catheter,Electric Ablation, Transvenous,Electrical Ablation, Transvenous,Transvenous Electric Ablation,Transvenous Electrical Ablation
D018780 Body Surface Potential Mapping Recording of regional electrophysiological information by analysis of surface potentials to give a complete picture of the effects of the currents from the heart on the body surface. It has been applied to the diagnosis of old inferior myocardial infarction, localization of the bypass pathway in Wolff-Parkinson-White syndrome, recognition of ventricular hypertrophy, estimation of the size of a myocardial infarct, and the effects of different interventions designed to reduce infarct size. The limiting factor at present is the complexity of the recording and analysis, which requires 100 or more electrodes, sophisticated instrumentation, and dedicated personnel. (Braunwald, Heart Disease, 4th ed) Body Surface Mapping,Body Surface Mappings,Mapping, Body Surface,Mappings, Body Surface,Surface Mapping, Body,Surface Mappings, Body

Related Publications

Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Electrophysiological characteristics and radiofrequency ablation of focal atrial tachycardia originating from the superior vena cava.
December 2001, Japanese circulation journal,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Reentrant atrial tachycardia originating from the superior vena cava.
June 2003, Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Initiation of atrial fibrillation by ectopic beats originating from the superior vena cava: electrophysiological characteristics and results of radiofrequency ablation.
July 2000, Circulation,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Atrial tachycardias originating from the atrial septum: electrophysiologic characteristics and radiofrequency ablation.
July 2000, Journal of cardiovascular electrophysiology,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Catheter ablation of atrial fibrillation originating from superior vena cava.
April 2006, Archives of medical research,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Electrophysiologic characteristics of atrial tachycardia originating from the superior vena cava.
March 2009, Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Non-Iatrogenic Localized-Reentrant Figure of Eight Atrial Tachycardias in the Superior Vena Cava.
January 2023, Case reports in cardiology,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Electrophysiological characteristics of paroxysmal atrial fibrillation originating from superior vena cava: a clinical analysis of 30 cases.
January 2015, International journal of clinical and experimental medicine,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Atrial fibrillation originating from persistent left superior vena cava.
February 2004, Circulation,
Masahiro Mizobuchi, and Yoshihisa Enjoji, and Kensaku Shibata, and Atsushi Funatsu, and Itaru Yokouchi, and Daisuke Kanbayashi, and Tomoko Kobayashi, and Shigeru Nakamura
Speech-triggered atrial tachycardia originating from the superior vena cava.
September 2014, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology,
Copied contents to your clipboard!