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在人工模拟牛肠梗阻实验中,测得各类肠梗阻的总体液量丢失率为十二指肠阻塞(D_o)19.68％、小肠扭转(S_T)14.62％、结肠阻塞(C_o)6.38％、小肠钳闭(S_I)4.36％。血浆容量丢失的程度依次为D_o>S_T>C_o>S_I,而血浆丢失的严重程度依次为S_T>C_o>S_I>D_o。血浆尿素氮的变化从T_3期开始均逐渐升高,峰值均在T_6期,其严重程度依次为D_o>S_1>C_o>S_T。本文对各类肠梗阻的失水原因、血浆容量的变化、血浆容量与血容量之间的关系、以及血容量减少与肾功能的关系作了详细讨论。
In artificial simulated bovine intestinal obstruction test, the total fluid loss rate of various types of intestinal obstruction was 19.68% for duodenal obstruction (D_o), 14.62% for intestinal torsion (S_T), 6.38% for intestinal obstruction (C_o), small intestine Closure (S_I) 4.36%. The degree of plasma volume loss was D_o> S_T> C_o> S_I, while the severity of plasma loss was S_T> C_o> S_I> D_o. The changes of plasma urea nitrogen gradually increased from the beginning of T_3, the peak values were in T_6 stage, and their severity was D_o> S_1> C_o> S_T. This article discusses the causes of various types of intestinal obstruction, changes in plasma volume, the relationship between plasma volume and blood volume, and the relationship between hypovolemia and renal function.