慢性肾功能衰竭患者胃肠道并发症的高发病率和严重性已被临床医生重视,尤其在肾移植后患者,这些并发症尤为常见。在慢性肾功能衰竭进入严重阶段,即血清肌酐达5.7～7.9mg/dl,尿素氮56.0mg/dl时即易出现胃肠道症状,如尿素氮到84.0mg/dl时,消化道症状的出现不可避免。上消化道并发症主要为溃疡和大出血。出血原因有溃疡和出血性胃炎最常见,但最近报告不少病例是胃及十二指肠血管发育不良。有资料说明,在慢性肾功能衰竭时,40%的出血原因为凝血机制异常。过去一直认为肾功能衰竭 The high morbidity and the severity of gastrointestinal complications in patients with chronic renal failure have been valued by clinicians, especially in post-renal transplant patients, and these complications are particularly common. In chronic severe renal failure into the stage, that is, serum creatinine up to 5.7 ~ 7.9mg / dl, urea nitrogen 56.0mg / dl that is prone to gastrointestinal symptoms, such as urea nitrogen to 84.0mg / dl, the emergence of gastrointestinal symptoms Inevitable Upper gastrointestinal complications are mainly ulcers and bleeding. Causes of bleeding ulcers and hemorrhagic gastritis are the most common, but many cases of recent reports of stomach and duodenal vascular dysplasia. Data shows that in chronic renal failure, 40% of the reasons for the abnormal blood clotting mechanism. In the past has been that renal failure