PURPOSE: To assess the incidence and clinical significance of thrombotic, nonocclusive mural deposits in abdominal aortic stent-grafts incidentally found on follow-up computed tomography scans after endovascular aneurysm repair (EVAR). MATERIALS AND METHODS: Between 1998 and 2007, 288 patients underwent EVAR of an infrarenal aortic aneurysm. In the majority of cases, a Zenith stent-graft (n = 187) or Excluder stent-graft (n = 71) was implanted. Clinical and radiologic follow-up was performed prospectively according to the EUROSTAR registry, with mean follow-up periods of 4.69 and 5.05 years, respectively, for the Excluder and Zenith groups. RESULTS: Thrombotic deposits were found in 17% and 33% of patients in the Excluder and Zenith groups, respectively, which represents a significant difference (P = .038). Clinically, no distal atheroembolic events were noted during follow-up, and there was no significant difference in survival between patients with and without thrombotic deposits (P = .80). CONCLUSIONS: Incidentally found thrombotic deposits in abdominal aortic endografts are common and device-specific, with a lower incidence in the Excluder group versus the Zenith group. These thrombotic deposits are clinically silent, do not require additional treatment at short-term and midterm follow-up, and do not affect the overall survival of the treated patients.
PURPOSE: To assess the incidence and clinical significance of thrombotic, nonocclusive mural deposits in abdominal aortic stent-grafts incidentally found on follow-up computed tomography scans after endovascular aneurysm repair (EVAR). MATERIALS AND METHODS: Between 1998 and 2007, 288 patients underwent EVAR of an infrarenal aortic aneurysm. In the majority of cases, a Zenith stent-graft (n = 187) or Excluder stent-graft (n = 71) was implanted. Clinical and radiologic follow-up was performed prospectively according to the EUROSTAR registry, with mean follow-up periods of 4.69 and 5.05 years, respectively, for the Excluder and Zenith groups. RESULTS:Thrombotic deposits were found in 17% and 33% of patients in the Excluder and Zenith groups, respectively, which represents a significant difference (P = .038). Clinically, no distal atheroembolic events were noted during follow-up, and there was no significant difference in survival between patients with and without thrombotic deposits (P = .80). CONCLUSIONS: Incidentally found thrombotic deposits in abdominal aortic endografts are common and device-specific, with a lower incidence in the Excluder group versus the Zenith group. These thrombotic deposits are clinically silent, do not require additional treatment at short-term and midterm follow-up, and do not affect the overall survival of the treated patients.
Authors: R Motta; L Rubaltelli; R Vezzaro; V Vida; P Marchesi; R Stramare; A Zanon; M Battistel; M Sommavilla; D Miotto Journal: Radiol Med Date: 2012-03-19 Impact factor: 3.469
Authors: Nicolas Aristokleous; Nikolaos G Kontopodis; Konstantinos Tzirakis; Christos V Ioannou; Yannis Papaharilaou Journal: Med Biol Eng Comput Date: 2015-12-16 Impact factor: 2.602