脊髓的永久性损害导致肺功能异常的途径可能有二:(1)脊髓损伤引起呼吸肌的功能障碍,呼吸活动度和咳嗽能力降低易致反复的呼吸道感染;(2)脊髓损伤后引起神经性膀胱,致使泌尿系反复感染,发生尿路结石或肾脏淀粉样变性,直至慢性肾功衰竭。而慢性肾功衰竭又可致水钠潴留或/和充血性心衰、尿毒症性肺炎或胸膜炎、肌无力、肺部感染、肺纤维化和 Spinal cord permanent damage lead to pulmonary dysfunction may have two ways: (1) spinal cord injury caused respiratory muscle dysfunction, decreased respiratory activity and cough prone to cause repeated respiratory infections; (2) caused by spinal cord injury neurological Bladder, resulting in recurrent urinary tract infection, urinary tract stones or kidney amyloidosis, until chronic renal failure. Chronic renal failure and can cause water retention sodium or / and congestive heart failure, uremic pneumonia or pleurisy, muscle weakness, pulmonary infection, pulmonary fibrosis and