湖沼型血吸虫病流行区居民肝脾显像流行病学调查

An epidemiological study on liver and spleen ultrasonographical assessment of inhabitants in a lake endemic region of Schistosomiasis japonicum

目的 了解血吸虫病洲岛型疫区居民血吸虫病病情 ,探讨 B超在评估血吸虫病病情中的应用价值。方法 在江西省鄱阳湖区某血吸虫病疫区 ,对该村 439名 3～ 6 0岁居民进行病原学检查和 B超检查。结果 粪检感染率为 2 9.2 9% ,男女差别无显著性。肝实质 级以上比例男性为2 7.1% ,女性为 17.4% ;门静脉内径异常比例男性为 15 .8% ,女性为 2 .1% ;脾静脉内径异常比例男性为 2 6 .1% ,女性为 36 %。多项 B超指标异常比例随年龄增加而升高。结论 B超检查能直接评价血吸虫病引起的肝脾损伤。

Objective To learn the morbidity of Schistosomiasis in a village and to evaluate the application of ultrasound in the assessment of the morbidity of the disease. Methods 439 residents aged 3~60 were examined by methods of Kato Katz, ultrasound as well as history inquiry. Results The positive rate of fecal examination was 29.29%, with no significant difference between male and female. 27.1% of the males and 17.4% of the females liver parenchyma were abnormal (≥grade Ⅱ). The abnormal rate of portal vein diameter of the male and the female were 15.8% and 2.1% and the abnormal rate of spleen length were 26 1% and 36%, respectively. Several ratios of abnormal ultrasound indexes went up with the age. Conclusions Ultrasound can evaluate the damage of liver and spleen induced by Schistosomiasis japonicum directly.