Terada Hitoshi, Kazui Teruhisa, Yamashita Katsushi, Washiyama Naoki, Suzuki Kazuchika, Suzuki Takayasu, Abul Hasan Muhammad Bashar
The First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Ann Thorac Cardiovasc Surg. 2005 Aug;11(4):273-6.
We report a successful aortic valve replacement within an extensively calcified (porcelain) aorta, involving the left coronary artery ostium. Clamping such an aorta can result in embolization, dissection, and mural laceration. A 72-year-old female presented with a severely calcified and stenotic aortic valve with a peak pressure gradient of 101 mmHg. Computed tomography demonstrated extensive calcification of the ascending aorta. Coronary angiogram showed a 50% ostial left coronary artery stenosis. Under deep hypothermic circulatory arrest, the aorta was transected at the proximal arch and distal graft anastomosis was performed. This was followed by endarterectomy of the porcelain ascending aorta and the left coronary ostium. Aortic valve replacement, proximal aortic graft anastomosis, and a coronary artery bypass grafting (CABG) with the left internal thoracic artery (LITA) anastomosed to the left anterior descending artery (LAD) were then performed in a sequential manner.
我们报告了一例在广泛钙化(瓷化)主动脉内进行的成功主动脉瓣置换术,该主动脉累及左冠状动脉开口。钳夹这样的主动脉可导致栓塞、夹层形成和壁层撕裂。一名72岁女性因严重钙化和狭窄的主动脉瓣就诊,峰值压力梯度为101 mmHg。计算机断层扫描显示升主动脉广泛钙化。冠状动脉造影显示左冠状动脉开口处有50%的狭窄。在深低温循环停搏下,在主动脉弓近端横断主动脉,并进行远端移植物吻合。随后对瓷化的升主动脉和左冠状动脉开口进行内膜切除术。然后依次进行主动脉瓣置换、近端主动脉移植物吻合以及使用左胸廓内动脉(LITA)与左前降支动脉(LAD)吻合的冠状动脉旁路移植术(CABG)。