Usui A, Murakami F, Ooshima H, Tomita Y, Yoshida K, Hibi M, Kawamura M
Department of Thoracic Surgery, Nagoya University School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan.
Ann Thorac Cardiovasc Surg. 1999 Aug;5(4):245-7.
The neodymium: yttrium-aluminum-garnet (Nd:YAG, wavelength; 1064 nm) laser knife was used for valvulotomy of severely calcified aortic valves in 12 patients. The fibrous layer enveloping the calcium deposits was peeled off the valvular annulus and the native valvular leaflet. The underlying calcium deposits were then resected. The average aortic cross-clamp time was 69 +/- 21 minutes. The cardiopulmonary bypass time averaged 118 +/- 32 minutes. All of the patients were discharged from the hospital without complications. Laser valvulotomy can be used to resect severely calcified aortic valves without mechanical crushing, reducing the risk of embolization.
钇铝石榴石（Nd:YAG，波长1064纳米）激光刀用于12例严重钙化主动脉瓣的瓣膜切开术。将包裹钙沉积物的纤维层从瓣膜环和天然瓣膜小叶上剥离。然后切除下面的钙沉积物。平均主动脉交叉钳夹时间为69±21分钟。体外循环时间平均为118±32分钟。所有患者均无并发症出院。激光瓣膜切开术可用于切除严重钙化的主动脉瓣，而不会造成机械性挤压，降低栓塞风险。
