Midterm Outcomes of Endoleak Type 2 Embolization after Endovascular Aortic Aneurysm Repair Using a
Stavros Kalliafas1, Petroula Nana2, Konstantinos Spanos2
11st Vascular Surgery Department, Hygeia Hospital, Athens, Greece.
Annals of Vascular Surgery
|January 15, 2023
Summary
Transarterial embolization effectively treats type 2 endoleaks (T2ELs) after EVAR, showing good midterm outcomes. Recurrence rates suggest the need for longer follow-up to assess the durability of this neurointerventional technique.
Area of Science:
- Endovascular surgery
- Interventional radiology
- Vascular medicine
Background:
- Type 2 endoleaks (T2ELs) post-EVAR are often considered benign but may require intervention if sac expansion occurs.
- This study evaluates midterm outcomes of T2EL embolization using neurointerventional materials.
Purpose of the Study:
- To assess the technical success and recurrence rates of transarterial embolization for T2ELs.
- To report midterm outcomes of T2EL embolization using neurointerventional materials.
Main Methods:
- Retrospective analysis of 26 patients undergoing transarterial embolization for T2ELs between 2017 and 2022.
- Neurointerventional materials (coils and Onyx) were used for embolization.
- Primary outcome: technical success; Secondary outcome: T2EL recurrence.
Main Results:
- Technical success rate was 84.6%.
- T2EL recurrence was observed in 30% of patients during a mean follow-up of 24 months.
- Patent inferior mesenteric or lumbar arteries were common suspected sources.
Conclusions:
- Transarterial embolization with neurointerventional materials offers acceptable technical success for T2ELs.
- Midterm recurrence rates suggest the need for extended follow-up to determine long-term durability.
- Further data is required to fully evaluate the long-term efficacy of this embolization technique.
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