title: Superior mediastinal obstruction with aortic dissection after aortic valve replacement. Diagnosis by computed tomography.
abstract: In two patients aortic dissection occurred as a late complication of aortic valve replacement and caused superior vena caval obstruction. The dissection and superior vena caval obstruction were diagnosed by computed tomography.
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000000981:diagnostic imaging* / Q000209:etiology; D001014:Aortic Aneurysm / Q000000981:diagnostic imaging* / Q000209:etiology; D001021:Aortic Valve / Q000601:surgery*; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*