Multicentre Experience with the Chimney Technique for Abdominal Aortic Aneurysms in French University Hospitals.

摘要: Objective The chimney technique (ChEVAR) allows for proximal landing zone extension endovascular repair of complex aortic aneurysms. aim the present study was to assess ChEVAR national outcomes in French university hospital centres. Methods All centres were contacted and entered data into a computerised online database on voluntary basis. Clinical radiological collected all consecutive patients operated 14 between 2008 2016. Patients deemed unfit open repair. Factors associated with early (30 day or hospital) mortality type 1 endoleak (Type I EL) calculated using multivariable analysis. Results In total, 201 343 target vessels treated. There 94 juxtarenal (46.8%), 67 pararenal (33.3%), 10 Crawford IV thoraco-abdominal (5%) aneurysms, 30 (15.1%) failures prior repairs. pre-operative diameter 66.8 ± 16.7 mm 28 (13.9%) performed as an emergency, including six (2.9%) ruptures. 23 (11.7%) unplanned intra-operative procedures, mainly related access issues. rate deaths 11.4% (n = 23). elective 9.8% (n = 17). Nine (4.5%) presented stroke. Type EL 11.9%. Survival 84.6%, 79.4%, 73.9%, 71.1% at 6, 12, 18, 24 months, respectively. primary patency stents 97.4%, 96.7%, 95.2%, 93.3% Performing procedures (OR 3.7, 95% CI 1.3–10.9) identified only independent predictor post-operative death. A aneurysm independently fewer ELs 0.17, 0.05–0.58). Conclusion this large series, results concerning. reasons may lie heterogeneous practices use outside current recommendations regarding oversizing rates, endograft types, sealing zones. Future research should focus improvements planning technical aspects.