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Causes of Respiratory distress syndrome原因呼吸窘迫综合征

Respiratory distress syndrome may occur in newborn, premature babies whose lungs are not fully developed and do not inflate fully after birth.呼吸窘迫症候群，可能会发生在新生儿，早产儿的肺部没有得到充分的开发和不充分膨胀，在出生后。 This is the result of there being too little of a substance known as a surfactant, which acts as a kind of detergent or wetting agent to lower the surface tension of the fluid in the lungs.这是由于有太少的物质被称为表面活性剂，它作为一个种洗涤剂或润湿剂，以降低表面张力的流体在肺部。

In adults, the syndrome may be caused by:在成人，综合征的原因可能是：

  • any form of lung infection,任何形式的肺部感染，
  • inhalation of irritant fluids such as vomit, or irritant gases such as chlorine, phosgene, ozone or smoke,吸入刺激性液体，如呕吐，或刺激性气体，如氯气，光气，臭氧或烟雾，
  • breathing high oxygen concentrations,呼吸高氧浓度，
  • near drowning,附近溺水，
  • narcotic overdose, and麻醉过量，
  • unusual reactions to certain other drugs, such as nitrofurantoin.不寻常的反应，某些其他药物，如呋喃妥因。

The lung defects cause a reduced level of oxygen in the blood.肺缺陷的原因减少的水平，氧在血液中。 This prompts a reflex increase in the rate of breathing.这促使反射率增长，呼吸。 The increased stiffness of the lungs makes breathing much more difficult, and the person is forced to make much stronger efforts to breathe than normal.增加刚度的肺部，使呼吸更为困难，该人是被迫作出的努力，更强大的呼吸较正常。 The result is increasing distress.结果是，越来越多的困扰。