Successful catheter ablation of premature ventricular contractions originating from the tricuspid annulus using a Halo-type catheter.
A 31-year-old woman with idiopathic premature ventricular contractions originating from the tricuspid annulus (TA) underwent electrophysiological testing. Activation mapping with a 20-pole bipolar Halo-type catheter positioned along the TA revealed the earliest ventricular activation at a site between 7 and 8 o'clock along the TA. A reversal in the polarity of the local ventricular electrograms was observed between the two neighbouring electrode pairs of the TA catheter. Successful catheter ablation was achieved at the ventricular site between those electrode pairs. A Halo-type catheter may be effective for mapping and catheter ablation of ventricular arrhythmias originating from the TA.
Yamada
Takumi
T
Division of Cardiovascular Disease, University of Alabama at Birmingham, 1670 University Boulevard, 1530 3rd Avenue South, Birmingham, AL 35294-0019, USA. takumi-y@fb4.so-net.ne.jp
Allison
Jeffery Scott
JS
McElderry
Hugh Thomas
HT
Doppalapudi
Harish
H
Epstein
Andrew E
AE
Plumb
Vance J
VJ
Kay
George Neal
GN
D018780:Body Surface Potential Mapping / Q000295:instrumentation* / Q000379:methods; D017115:Catheter Ablation / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006329:Heart Conduction System / Q000601:surgery*; D006801:Humans; D025321:Surgery, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome; D014261:Tricuspid Valve / Q000601:surgery*; D018879:Ventricular Premature Complexes / Q000175:diagnosis* / Q000601:surgery*