一般认为慢性肾功能衰竭患者施行大手术是禁忌的,因为手术常能诱发肾功能恶化。其恶化原因部分是由于外科患者在手术前和术后出现脱水。慢性肾功能衰竭患者脱水可能较为严重,因为这些患者保钠和保水的能力已经减损。作者曾对5例丧失钠和水较为明显的肾脏病 It is generally accepted that major surgery in patients with chronic renal failure is contraindicated because surgery can often lead to worsening of renal function. The cause of the deterioration is due in part to the dehydration of surgical patients before and after surgery. Patients with chronic renal failure may have severe dehydration, as their ability to maintain sodium and retain water has been reduced. The author had 5 cases of loss of sodium and water more obvious kidney disease