2000-2004年辽宁省清原县克山病病情消长态势

目的掌握2000-2004年辽宁省清原县克山病(国家级监测点)病情及消长趋势,探索科学的病情监测方法。方法在清原县内按东、南、西、北、中自然方位共选择5个监测点,每年按《克山病监测标准》监测一个点,同时开展膳食营养状况等相关因素调查。最后一年再次对首年建立的监测点实施病情监测,并对前4年各点检出的克山病病人追踪访视。结果5年间,各监测点共检出潜在型和慢型克山病病人143例,新发潜在型克山病病人2例,平均年总检出率为5．1％。无急型、亚急型克山病新发病例。监测点居民膳食结构不合理,动物性食品和豆类食品蛋白质摄入量较少。结论以潜在型、慢型发病为主已成为辽宁省克山病流行的主要特征,且发病呈上升趋势。建议在病区县采取固定点与流动点相结合的监测方法,并进一步改善居民的膳食结构。

Prevailing tendency of Keshan disease in Qingyuan County of Liaoning from 2000 to 2004

Objective To study the prevailing tendency of Keshan disease (KD) in the national surveillance sites(Qingyuan County), and to explore a scientific surveillance method. Methods Five surveillance sites were selected in Qingyuan County according to the orientation of east, west, south, north and center respectively. A site was surveyed each year according to "Surveillance Standard on Keshan Disease" and related factors including eating habits and nutritional state were investigated at the same time. In the last year, KD surveillance was conducted again at the site which had been surveyed in the first year. The KD patients who had been diagnosed during four years were followed up. Results No new cases of acute or sub-acute KD were found, and latent and chronic KD patients totaled up to 143 were found at the sties in five years. The prevalence of the KD was 5.1%. 2 cases of latent KD were newly detected. It was also noticed that residents in the sites consumed unbalanced diets with insufficient protein orienting from animals and beans. Conclusions Latent and chronic KD are two major types in our province and there is an upward trend of latent KD. Fixed surveillance sites combined with mobilizing ones should be surveyed and food structure should be optimized in the endemic areas.