Aortic neck dilatation and endograft migration are correlated with self-expanding endografts
Articolo
Data di Pubblicazione:
2007
Citazione:
Aortic neck dilatation and endograft migration are correlated with self-expanding endografts / I. Dalainas, G. Nano, P. Bianchi, F. Ramponi, R. Casana, G. Malacrida, D.G. Tealdi. - In: JOURNAL OF ENDOVASCULAR THERAPY. - ISSN 1526-6028. - 14:3(2007), pp. 318-323. [10.1583/06-2007.1]
Abstract:
PURPOSE: To compare self-expanding and balloon-expandable stent-grafts in terms of aortic neck dilatation and endograft migration.
METHOD: Two-hundred and forty-two patients (178 men; mean age 68 years, range 56-91) underwent elective endovascular repair of abdominal aortic aneurysm. Two-hundred self-expanding (115 Excluder, 48 Endologix, 23 Vanguard, 10 Anaconda, and 4 Talent) and 42 balloon-expandable (Lifepath) endografts were used. All patients underwent contrast-enhanced computed tomography (CT) prior to the intervention, at 1, 3, and 6 months after the procedure, and annually thereafter. Comparison was made between the first and the last follow-up CT scans.
RESULTS: Fifty-five (27.5%) of the 200 patients treated with self-expanding endografts had aortic neck dilatation compared to only 3 (7.1%) of the 42 patients treated with balloon-expandable endografts (p = 0.023). Forty-nine (24.5%) patients in the self-expanding group versus only 3 (7.1%) patients of the balloon-expandable group presented with endograft migration (p = 0.034); all had dilated necks. The difference between the means of neck dilatation for the Lifepath balloon-expandable stent-graft and the Excluder self-expanding endoprosthesis was statistically significant (p = 0.011, 95% CI 0.07 to 0.91).
CONCLUSION: Aortic neck dilatation following endovascular AAA repair appears to be correlated with self-expanding endografts, which may contribute to a higher incidence of graft migration compared to that occurring with balloon-expandable endografts.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
I. Dalainas, G. Nano, P. Bianchi, F. Ramponi, R. Casana, G. Malacrida, D.G. Tealdi
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