急性肺水肿多由急性左心功能不全所致。左心室排血量突然不足或左心房排血受阻时,引起肺静脉及肺毛细血管压力急剧增高,当肺毛细血管内压力超过血浆胶体渗透压时,液体即从毛细血管漏出到肺间质、肺泡甚至气道内,而发生肺水肿。急性肺水肿一旦发生,病势凶险,必须及早诊断,并尽快给予紧急处理。 Acute pulmonary edema and more caused by acute left ventricular dysfunction. Sudden lack of left ventricular ejection or left atrial obstruction, causing pulmonary venous and pulmonary capillary pressure increased dramatically when the pulmonary capillary pressure exceeds the plasma colloid osmotic pressure, the liquid leaks from the capillaries to the pulmonary interstitium, alveoli Even within the airway, pulmonary edema occurs. Acute pulmonary edema in the event of dangerous conditions, must be diagnosed as soon as possible and give emergency treatment.