[Implantation of an endoprosthesis for the repair of stenosis of valved tube between right ventricle and pulmonary artery].
The author report the case of a 35 year old man who had undergone a Rastelli procedure in 1976 for transposition of the great arteries and who required indertion of a stent for stenosis of the valved right ventricular-pulmonary artery conduit. The patient presented with florid signs of right ventricular failure due to degenerescence of the conduit which had a 60 mmHg pressure gradient between the right ventricle and the pulmonary artery. This palliative procedure was decided upon given the high risk of reoperation. The valved conduit was dilated with a balloon catheter before insertion of a Gianturco stent (30 mm diameter and 50 mm long) to cover both conduit and the valvular apparatus. The insertion of the stent was easy with immediate normal expansion and the procedure was well tolerated. After insertion of the stent, the right ventricular-pulmonary artery pressure gradient fell from 60 to 35 mmHg. Angiographic control one month later showed a sustained hemodynamic result with a perfectly patent stent. The patient was pauci-symptomatic when reviewed six months after the procedure.
Dubois-Randé
J L
JL
Service de cardiologie, hôpital Henri-Mondor, Créteil.
Pernes
J M
JM
Perchet
H
H
Dupouy
P
P
Castaigne
A
A
Geschwind
H
H
Vernant
P
P
D000328:Adult; D001807:Blood Vessel Prosthesis; D002404:Catheterization; D017023:Coronary Angiography; D005500:Follow-Up Studies; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D011651:Pulmonary Artery; D015642:Radiology, Interventional; D015607:Stents; D014188:Transposition of Great Vessels / Q000628:therapy*
Mise en place d'une endoprothèse pour correction d'une sténose sur un tube valvulé ventricule droit-artère pulmonaire.