应激是机体受到强烈刺激后发生的、以交感神经-肾上腺髓质和垂体-肾上腺皮质功能增强为主要特点的非特异性反应。应激时机体发生一系列的变化,应激性溃疡(Stress Ulcer,简称SU)是其中的一种。在应激状态下,胃肠道粘膜发生急性糜烂、溃疡、出血,这些病理变化称为SU。临床上见于严重的外伤、烧伤、大手术、休克、颅脑疾患、重要的脏器功能衰竭和某些药物的刺激等情况。SU亦有称“急性胃粘膜病变”、“急性糜烂性胃炎”、“出血性胃炎”等,还有人把并发于烧伤的SU称为Curling溃疡,并发于颅脑疾患的SU称为Cushing Stress is the body after a strong stimulus to the sympathetic - adrenal medulla and pituitary - adrenal function enhancement as the main feature of the non-specific reaction. Stress occurs when a series of changes in the body, stress ulcer (Stress Ulcer, referred to as SU) is one of them. Under stress, acute gastrointestinal mucosa erosion, ulcers, bleeding, these pathological changes called SU. Clinical see serious trauma, burns, major surgery, shock, craniocerebral disorders, important organ failure and stimulation of certain drugs and so on. SU also known as “acute gastric mucosal lesions”, “acute erosive gastritis”, “hemorrhagic gastritis”, and others also called concurrent SU in the burns of the Curling ulcer, concurrent with craniocerebral disease SU called Cushing