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阻塞性通气障碍患者常因反复呼吸道感染而造成肺高压,肺心病;肺心病患者亦常由同样原因诱发急性呼吸衰竭或心力衰竭而死亡。故对此类患者来说,有效地防治呼吸道感染是制止病情恶化.降低死亡率的关键之一。慢支炎、肺心病患者呼吸道易反复感染,其重要原因在于机体免疫功能低下,特别是呼吸道局部体液兔疫功能低下(或其免疫平衡破坏)而致呼吸道局部粘膜抗病毒,抗菌能力显著减退。①②③近来有人认为,除上述因素外,免疫功能异常还包括全身的及呼吸道局部的
Patients with obstructive ventilatory disorders often cause pulmonary hypertension due to repeated respiratory infections, pulmonary heart disease; patients with pulmonary heart disease are also often killed by the same cause of acute respiratory failure or heart failure. So for such patients, the effective prevention and treatment of respiratory tract infection is to stop the deterioration of the disease to reduce the mortality of one of the keys. Chronic bronchitis, pulmonary heart disease patients with respiratory tract infections easily repeated, the important reason is that the body’s immune dysfunction, especially respiratory tract local body fluid immune function (or its immune balance damage) caused by local mucosal respiratory tract antiviral antibacterial ability decreased significantly. ① ② ③ Some people think that recently, in addition to the above factors, immune dysfunction, including systemic and respiratory local