https://www.selleckchem.com/pr....oducts/mmp-9-in-1.ht
Level of evidence IV. To present a novel technique to successfully cross a mechanical aortic valve prosthesis. A 55-year-old female patient with genetically verified Marfan syndrome presented with a 5-cm anastomotic aneurysm of the proximal aortic arch after previous ascending aortic replacement due to a type A aortic dissection in 2007. The patient also underwent mechanical aortic valve replacement in 1991. A 3-stage hybrid repair was planned. The first 2 steps included debranching of the supra-aortic vessels. In the third procedure
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