Plasma cGMP levels (by radioimmunoassay), cardiothoracic ratio (CTR), and the body weight (BW) before and after hemodialysis were determined in chronic hemodialysis patients and clinical signs and symptoms were observed at the same time.

• 方法 :测定 2 5例慢性血液透析患者透析前后的血浆cGMP(放射免疫法 )、心胸比值 (CTR)及体重 ,并观察临床表现。