Ablation of left ventricular tachycardia via transeptal approach and crossing of a mechanical mitral valve prosthesis.
This report describes the clinical course of a patient with left ventricular assist device (LVAD) and refractory ventricular tachycardia (VT) who underwent successful left ventricular (LV) mapping and ablation complicated by the presence of a bioprosthetic aortic and a mechanical mitral valve. LV catheterization was achieved by crossing the mechanical valve. The patient remained hemodynamically stable during the procedure most likely as a result of LVAD support. There were no complications. A recurrence of monomorphic VT 2 months later required a second VT ablation procedure using the same transseptal-transmitral approach. The patient has since been free of implantable cardioverter defibrillator shocks for 2 months since the second procedure.
Herweg
Bengt
B
Division of Cardiology, Florida Heart Rhythm Institute and Tampa General Hospital, Tampa, Florida 33606, USA. bherweg@tampabay.rr.com
Ilercil
Arzu
A
Sheffield
Cedric D
CD
Caldeira
Christiano C
CC
Rinde-Hoffman
Debbie
D
Barold
S Serge
SS
D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D006329:Heart Conduction System / Q000601:surgery*; D006346:Heart Septum / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006352:Heart Ventricles / Q000601:surgery*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000601:surgery*; D017180:Tachycardia, Ventricular / Q000601:surgery*; D016896:Treatment Outcome