Pavliukov I A, Berezantsev Iu A, Mezhazakis F I
Lab Delo. 1990(6):47-50.
Chemical sedimentation method of coproovoscopic diagnosis of trematodoses was modified: sodium nitrate was replaced by sodium nitrite (this increased the helminthic egg membrane hydrophilia) and the optimal ratio of sodium nitrite to acetic acid solution volumes was experimentally selected. This improved the method sensitivity twofold (p less than 0.001). Three series of investigations of the sensitivities of the modified chemical sedimentation method, microscopy of the native smear, Kato's, Hein's, Kalantaryan's, Stoll's methods, and ether-formalin sedimentation of helminthic eggs were carried out with the material from opisthorchiasis patients with invasion of low intensity. The modified technique proved to be the most sensitive (p less than 0.01) and productive (p less than 0.001). It is recommended for screening the population at endemic regions and for control analyses after etiotropic therapy of trematodosis patients.
用亚硝酸钠代替硝酸钠（这增加了蠕虫卵膜的亲水性），并通过实验选择了亚硝酸钠与醋酸溶液体积的最佳比例。这使该方法的灵敏度提高了两倍（p小于0.001）。用轻度感染后睾吸虫病患者的材料，对改良化学沉淀法、直接涂片镜检法、加藤法、海因法、卡兰塔里安法、斯托尔法以及蠕虫卵的乙醚 - 福尔马林沉淀法的灵敏度进行了三个系列的研究。改良技术被证明是最灵敏的（p小于0.01）且最有效的（p小于0.001）。建议用于流行地区人群的筛查以及吸虫病患者病因治疗后的对照分析。
