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Dilatation of Vascular Prostheses in Ascending Aortic Position: A Long-Term Follow-Up Computed Tomography Study with Comparison of Different Measurement Methods.
Hamiko, Marwan; Endlich, Matthias; Krämer, Christian; Probst, Chris; Welz, Armin; Wilhelm, Kai; Schiller, Wolfgang.
Afiliación
  • Hamiko M; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
  • Endlich M; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
  • Krämer C; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
  • Probst C; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
  • Welz A; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
  • Wilhelm K; Department of Radiology, University of Bonn, Bonn, Germany.
  • Schiller W; Department of Cardiac Surgery, University of Bonn, Bonn, Germany.
Thorac Cardiovasc Surg ; 66(3): 206-214, 2018 04.
Article en En | MEDLINE | ID: mdl-27960216
BACKGROUND: The aim of this study was to evaluate long-term dilatation of Hemashield Gold and Hemashield Platinum vascular prostheses in ascending aortic position using different measurement methods to obtain precise results. METHODS: Between 1999 and 2007, 73 patients with Stanford type A dissection received ascending aortic replacement with Hemashield Gold and Hemashield Platinum prostheses. Measurements were performed using multiplanar reconstruction mode of electrocardiogram (ECG)-gated, multislice spiral computed tomography (MSCT) in strictly orthogonal cross-sectional planes. Different methods of measurement were compared and maximum dilatation was estimated for different time spans. RESULTS: Diameters calculated from the measured circumference showed a significant (p = 0.037) but clinically not relevant difference (0.1 mm) to the mean between the largest and the shortest cross-sectional diameter of the prosthesis. Dilatation after 24.2 ± 10.2 months was 8.5 ± 4.5%. Long-term dilatation after 91.8 ± 34 months amounted to 11.8 ± 4.2%. CONCLUSION: Based on ECG-gated MSCT images, the presented methods of measurement provided reliable results. Long-term analysis shows low dilatation rates for Hemashield prostheses, which therefore can be considered as safe from this point of view. Nevertheless, a maximal dilatation of 20% could be relevant in valve sparing root replacement. It remains unclear if a dilatation like this contributes to the formation of suture aneurysms.
Asunto(s)

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Aorta / Falla de Prótesis / Prótesis Vascular / Aortografía / Interpretación de Imagen Radiográfica Asistida por Computador / Implantación de Prótesis Vascular / Tomografía Computarizada Multidetector / Angiografía por Tomografía Computarizada Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Female / Humans / Male / Middle aged Idioma: En Año: 2018 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Aorta / Falla de Prótesis / Prótesis Vascular / Aortografía / Interpretación de Imagen Radiográfica Asistida por Computador / Implantación de Prótesis Vascular / Tomografía Computarizada Multidetector / Angiografía por Tomografía Computarizada Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Female / Humans / Male / Middle aged Idioma: En Año: 2018 Tipo del documento: Article