现已了解在各类休克过程中均有交感-肾上腺髓质系统活动的增强,以及血管活性物质等的大量释放,且是发病学重要环节,目前用血管扩张剂后病死率已较用血管收缩剂显著下降,但仍有部分休克,尤其是晚期休克难以挽救。不少学者已注意到休克时缺血的内脏对休克的难逆性发展有特殊的 It is now known that there is sympathetic-adrenal system activity enhancement in various types of shock, as well as the release of a large amount of vasoactive substances and is an important part of the pathogenesis. At present, the mortality after vasodilator has been compared with that of vasoconstriction Significantly decreased, but still some shock, especially in advanced shock is difficult to save. Many scholars have noticed that the ischemic internal organs of shock have special effects on the development of shock