肝脏血管极其丰富,所以肝脏外科的主要问题在于如何控制肝脏切除术时的出血。传统手术的止血方法虽然较多,但效果均不理想,术后出血和术后感染等手术并发症仍很严重,因而死亡率仍较高。尤对肝癌患者,易引起医源性扩散转移。因此,探求更多的外科治疗手段,一直是肝脏外科工作者的重要课题,也是激光医学工作者义不容辞的责任。国外自1970年起开展了用CO_2激光做切割动物肝脏的实验研究,取得了较好的止血效果。近年来有人用Na~+YAG激光进行实验性肝叶切除,取得了更好的止血效果。但 The liver is extremely rich in blood vessels, so the main problem with liver surgery is how to control bleeding during liver resection. Although the traditional method of hemostasis is more, the effect is not satisfactory. The postoperative complications such as bleeding and postoperative infection are still serious, and the mortality rate is still high. Especially for liver cancer patients, easy to cause iatrogenic proliferation and metastasis. Therefore, the search for more surgical treatment has been an important issue for liver surgical workers, but also the unshirkable responsibility of laser medical workers. Abroad from 1970 onwards carried out with CO2 laser cutting animal liver experimental study, and achieved good hemostatic effect. In recent years, some people with Na ~ + YAG laser hepatic lobectomy, and achieved a better hemostatic effect. but