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  • Title: Endograft collapse after thoracic endovascular aortic repair.
    Author: Jonker FH, Schlosser FJ, Geirsson A, Sumpio BE, Moll FL, Muhs BE.
    Journal: J Endovasc Ther; 2010 Dec; 17(6):725-34. PubMed ID: 21142480.
    Abstract:
    PURPOSE: To provide insight into the causes, timing, and optimal management of endograft collapse after thoracic endovascular aortic repair (TEVAR). METHODS: A comprehensive review was conducted of all published cases of endograft collapse after TEVAR identified using Medline, Cochrane Library Central, and EMBASE. In total, 32 articles describing 60 patients (45 men; mean age 40.6 ± 17.2 years, range 17-78) with endograft collapse were included. All data were extracted from the articles and systematically entered into a database for meta-analysis. RESULTS: In the 60 cases of endograft collapse, TEVAR had most commonly been applied to repair traumatic thoracic aortic injuries (39, 65%), followed by acute and chronic type B aortic dissections (9, 15%). The median time interval between TEVAR and diagnosis of endograft collapse was 15 days (range 1 day to 79 months). On average, the collapsed endografts were oversized by 26.7% ± 12.0% (range 8.3%-60.0%). Excessive oversizing was reported as the primary cause of endograft collapse in 20%, and a small radius of curvature of the aortic arch was responsible for 48% of the cases. The 30-day mortality was 8.3%, and the freedom from procedure-related death at 3 years after diagnosis of stent-graft collapse was 83.1% for asymptomatic patients compared with 72.7% for patients who had symptoms at diagnosis (p=0.029). CONCLUSION: Endograft collapse typically occurs shortly after TEVAR, most frequently after endovascular repair of traumatic aortic injury. A high level of suspicion for endograft collapse in the first month after TEVAR, as well as further improvement of current endovascular devices, may be required to improve the long-term outcomes of patients after TEVAR.
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