G Barbiero1, A Baratto, F Ferro, J Dall'Acqua, C Fittà, D Miotto. 1. Dipartimento di Scienze Medico-Diagnostiche e Terapie Speciali, Sezione di Radiologia, Università di Padova, Padova, Italy. giuliobarbiero@katamail.com
Abstract
PURPOSE: This study reviews, on the basis of our experience, the indications and options for treating endoleaks (EL) after endovascular repair of abdominal aortic aneurysms (AAA) by endografting. MATERIALS AND METHODS: Ninety-five patients (M/F =92/3; mean age at time of operation 70.7+/-7.8 years) who underwent endovascular repair of infrarenal AAA between April 1997 and October 2004 were considered. All images of 420 pre-and postoperative computed tomography (CT) studies were reviewed. RESULTS: A total of 37 EL occurred in 33/95 patients (34.7%), four of whom had two EL of different types. Eighteen EL were treated, 16 by endoluminal treatment. Six EL were type I: 2 were treated by percutaneous transluminal angioplasty (PTA) and 4 by cuff deployment (2 proximal cuffs and 2 distal cuffs). Eight EL were type II: 2 were treated by PTA, 2 by cuff deployment, 1 by transcatheter coil embolisation of the inferior mesenteric artery, two by thrombin injection in the aneurysm sac and one underwent surgical conversion during an attempt to treat a concomitant type I EL. Finally, 2 EL were type III: 1 was treated by PTA and 1 by cuff deployment. Endovascular treatment was successful in 12/16 cases (75%), whereas 3/16 cases (18.8%) were converted to open surgery, and 1 patient died of AAA rupture the day after endovascular repair. CONCLUSIONS: EL is the most common complication after endovascular repair of AAA. In type I and type III EL, treatment is mandatory, whereas in type II (and type V) EL, treatment is indicated in the presence of AAA enlargement. Type IV EL generally disappear spontaneously. Endovascular repair is feasible and can be performed with different techniques according to EL aetiology, but it is not always decisive, and in some cases surgical conversion is required.
PURPOSE: This study reviews, on the basis of our experience, the indications and options for treating endoleaks (EL) after endovascular repair of abdominal aortic aneurysms (AAA) by endografting. MATERIALS AND METHODS: Ninety-five patients (M/F =92/3; mean age at time of operation 70.7+/-7.8 years) who underwent endovascular repair of infrarenal AAA between April 1997 and October 2004 were considered. All images of 420 pre-and postoperative computed tomography (CT) studies were reviewed. RESULTS: A total of 37 EL occurred in 33/95 patients (34.7%), four of whom had two EL of different types. Eighteen EL were treated, 16 by endoluminal treatment. Six EL were type I: 2 were treated by percutaneous transluminal angioplasty (PTA) and 4 by cuff deployment (2 proximal cuffs and 2 distal cuffs). Eight EL were type II: 2 were treated by PTA, 2 by cuff deployment, 1 by transcatheter coil embolisation of the inferior mesenteric artery, two by thrombin injection in the aneurysm sac and one underwent surgical conversion during an attempt to treat a concomitant type I EL. Finally, 2 EL were type III: 1 was treated by PTA and 1 by cuff deployment. Endovascular treatment was successful in 12/16 cases (75%), whereas 3/16 cases (18.8%) were converted to open surgery, and 1 patient died of AAA rupture the day after endovascular repair. CONCLUSIONS: EL is the most common complication after endovascular repair of AAA. In type I and type III EL, treatment is mandatory, whereas in type II (and type V) EL, treatment is indicated in the presence of AAA enlargement. Type IV EL generally disappear spontaneously. Endovascular repair is feasible and can be performed with different techniques according to EL aetiology, but it is not always decisive, and in some cases surgical conversion is required.
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