摘要
目的：总结560例患者CT强化扫描的经验，研究在CT强化扫描中出现的不良反应及其预防措旅。方法：通过分析我院2009年1月～2010年3月560例CT强化扫描患者的资料。结果：成功557例（99．46％），失败3例（0．54％），其中荨麻疹1例，呕吐1例，因心情紧张出现心慌憋气1例，均终止强化扫描。结论：在CT增强扫描中，CT室护士必须做好临床和心理护理及各项预防措施，从而帮助病人克服或减轻各种不良反应，以确保强化扫描的顺利进行。
Objective To establish the rat model of secretory otitis media induced by bacteria and its endotoxins,and to explore the expression of mueins in minddle ear mucosa, and to explore the effect of mucins in minddle ear effusion. Methods 20 normal SD rats were randomized into control group and experimental group. 10 cases in each group. A model of rat with secretory otitis media was established by inactivated haemophilus influenzae in the experiment group. Endotoxins of minddle ear effusion were tested with limulus agent in different period, and mucins in minddle ear effusion were tested with ELISA, We gave roution dye and AP--PAS dye to acquired mucosa,and then mucous glands and goblet cells were observed. ResultsThe average endotoxins of tympanic epithelium mucosa in experimental group was 2.1 times more than which in control group, and which has statistics significance （P 〈 0.01）. The average mucins of minddle ear effusion in experimental group was 4.2 times more than which in control group, and which has statistics significance（P〈0.01）. Conclusion Decomposition product of bacteria-- ----Endotoxins cause inflammatory reaction of middle ear mucosa and the effusion of middle ear, and lead goblet cells to excrete mucins,and then cause middle ear effusion even glue ear consequently.
关键词
CT强化扫描
临床护理
mucins
secretory otitis media
endotoxin
