Transvenous shock-only implantable cardioverter defibrillator for
tricuspid valve atresia after an atrio-pulmonary Fontan surgery
A 42-year-old woman with tricuspid atresia who underwent a Fontan
surgery (atrio-pulmonary connection) was admitted to our hospital due to
symptomatic ventricular tachycardia. A defibrillation lead was implanted
in a distal site of a coronary vein since there was no usual entry to
the ventricle. Ventricular pacing was impossible due to the high
threshold, however, good sensing was obtained. Three years later, she
felt palpitations and a subsequent shock therapy while climbing stairs.
The cardioverter data showed that an appropriate cardioversion therapy
successfully converted ventricular tachycardia to normal rhythm.