BUN/Cr比值在上下消化道出血诊断中的意义

目的 :评价BUN/Cr比值来区分上下消化道出血。方法 :回顾性分析 137例消化道出血患者。结果 :98例 (71% )为上消化道出血 ,34例 (2 5 % )为下消化道出血 ,5例 (4% )上下消化道均有出血 ,平均BUN/Cr比值为 95 ,下消化道出血与年龄小于 5 0 ,性别为男性呈显著相关关系 (P <0 0 1;P <0 0 1)。考虑进性别 ,年龄因素之后 ,BUN/Cr比值大于 14 3确定上消化道出血的敏感性为 90 % ,特异性为 2 7%。结论 :结合性别、年龄因素 ,BUN/Cr比值有助于鉴别上下消化道出血。

Signifiance of BUN/Cr Ratio in Diagnosis of Gastrointestinal Bleeding

Objective: To evaluate the blood urea nitrogen/creatinine(BUN/Cr) ratio for distinguishing an upper versus lower soured of gastrointestinal (GI) bleeding. Method 137 patients with GI bleeding were retrospectively analyzed. Results 98(71%) patients had an upper GI bleeding. 34(25%) had an lower,and 5(4%) had an upper and lower, in 137. the mean BUN/Cr ratio was 95.upper GI bleeding was significantly correlated with age younger than 50 and male gender( P <0.01; P <0.01).taking into account age and gender,the BUN/Cr ratio correlated significantly with an upper source of gastrointestinal bleeding( P <0.05),with a ratio greater than 143 have a sensitivity of 90% and a specificity of 27%.Conclusion: combining with younger than 50 and male,BUN/Cr ratio was helpful to distinguish upper GI bleeding in patients GI bleeding who presented to the emergency department.