Björk V, Henze A, Szamosi A
Scand J Thorac Cardiovasc Surg. 1976;10(1):1-6. doi: 10.3109/14017437609167761.
Coronary ostial stenosis developing after aortic valve replacement is a clinically well-recognized entity. This non-atheromatous intimal proliferation may be limited to the proximal part of the coronary artery, probably as a complication of intra-operative coronary perfusion. It may also occur in association with widespread intimal thickening in the aortic root, presumedly as a reaction to turbulence around aortic ball valve prostheses. We have encountered this process in 2/508 patients (0.4%), who underwent aortic valve replacement with the Björk-Shiley tilting disc valve prosthesis. The coronary perfusion technique was identical in all the operations.
主动脉瓣置换术后发生的冠状动脉开口狭窄是一种临床已充分认识的病症。这种非动脉粥样硬化性内膜增生可能局限于冠状动脉近端，很可能是术中冠状动脉灌注的并发症。它也可能与主动脉根部广泛的内膜增厚相关，推测是对主动脉球瓣假体周围湍流的一种反应。我们在508例接受Björk-Shiley倾斜碟瓣假体主动脉瓣置换术的患者中有2例（0.4%）遇到了这一情况。所有手术中的冠状动脉灌注技术均相同。
