Mustard procedure in atrial situs inversus: three-dimensional ablation of intra-atrial reentry tachycardia on a surgically created inversus cavo-tricuspid isthmus.
It has been demonstrated that the Biosense Carto system can improve the success rate of ablation in case of an intra-atrial reentry tachycardia in patients submitted to the Mustard repair. This system was used to map an intra-atrial reentry tachycardia in a young patient who had been submitted to the Mustard procedure for atrial situs inversus. A line of block was created connecting the right sided tricuspid valve to the left sided inferior vena cava. This terminated the arrhythmia and prevented its re-initiation. This case confirmed the notion that the cavo-tricuspid isthmus is often critical to the maintenance of an intra-atrial reentry tachycardia after the Mustard procedure even if its location is in the inversus side.
Pediatric Cardiology Department, Bambino Gesù Hospital, Rome, Italy. fabriziodrago@tiscalinet.it
Fabrizio
F
Drago
Massimo Stefano
MS
Silvetti
Giorgia
G
Grutter
Alfredo
A
Di Pino
Maurizio
M
Bevilacqua
D000293:Adolescent; D000328:Adult; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D017115:Catheter Ablation / Q000379:methods*; D006325:Heart Atria / Q000601:surgery; D006801:Humans; D008297:Male; D012857:Situs Inversus / Q000601:surgery; D013617:Tachycardia, Supraventricular / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*