Transcatheter Embolisation of Proximal Type 1 Endoleaks Following Endovascular XXXX (EVAS) Using the Nellix Device: Technique and Outcomes.

@entity1 @entity439
AIM: To evaluate the technical success and mid-term outcomes following transcatheter  embolisation  of type 1a endoleak after Nellix endovascular @entity439 sealing (EVAS). MATERIALS AND METHODS: Seven @entity1 (5 @entity1 ; mean age 83; range 79-90) underwent transcatheter embolisation between July 2013 and August 2014. The average time from EVAS to embolisation was 136  days (range 6-301) and from endoleak diagnosis to embolisation was 20  days (range 2-50). Embolisation  was performed with coils and Onyx in six cases and Onyx only in one case. Technical success, imaging and clinical outcomes of embolisation were reviewed. Technical success was defined as elimination of the endoleak on completion angiography and first imaging follow-up. Clinical success was defined as unchanged or decreased @entity439 sac size on subsequent follow-up (average 8  months; range 103-471  days). RESULTS: All cases were technically successful. One @entity1 required a second endovascular procedure following Onyx reflux into the Nellix endograft and another @entity1 required surgical closure of a brachial puncture site. All @entity1 are endoleak free with stable sac size on the latest available follow-up imaging. CONCLUSION: If a type 1 endoleak occurs after EVAS, embolisation using Onyx with or without coils is feasible and effective with high technical success and freedom from endoleak recurrence at mid-term follow-up.
