2011—2019年辽阳市“三热”病人血涂片质量分析

Analysis of blood smears quality of febrile patients in Liaoyang city,2011-2019

目的总结辽阳市不明原因发热和疟疾病例("三热"病人)血涂片质量,为辽阳市实验室建设和消除疟疾效果评价提供依据。方法2011—2019年辽阳市7个县(市)区上送至市疾控中心的"三热"病人的血涂片,依据《消除疟疾技术方案2011版》,对血涂片的制作、染色、清洁度进行质量评价。结果2011—2019年辽阳市共复核血涂片1601张,血涂片制作、染色、清洁度总体合格率分别为83.32%、84.32%、88.13%,并呈现逐年上升趋势;不同年份的血涂片制作、染色、清洁度合格率差异均有统计学意义(P<0.05)。除辽阳县和太子河区外,其他县(市)区的血涂片清洁度合格率均大于80%,但制作和染色合格率只有辽阳县、灯塔市、白塔区达到85%。血涂片质量问题以血膜有划痕、厚血膜脱落、厚血膜未溶血、血量过大、血片位置不当为主。结论辽阳市不明原因发热和疟疾病人血涂片总体质量较好,达到要求。

Objective To summarize and analyze the blood smear quality of febrile patients in Liaoyang city,so as to provide the basis for laboratory construction and malaria elimination effect evaluation in Liaoyang.Methods The blood smears of febrile patients were collected from 7 counties or districts in Liaoyang from 2011 to 2019,which were reviewed by local CDC and sent to Liaoyang CDC.The quality of the blood smears was evaluated according to the"Elimination of Malaria Technical Plan 2011 edition".Results From 2011 to 2019,a total of 1601 blood smears were reviewed,and the overall qualified rate of blood smears preparation,staining and cleanliness was 83.32%,84.32%and 88.13%,respectively,an increase trend was shown.There were statistically significant differences in the qualified rate of preparation,dyeing and cleanliness in different years(P<0.05).With the exception of Liaoyang county and Taizihe district,the qualified rate of blood smear cleanliness in other counties or districts was more than80%,and the qualified rate of preparation and dyeing was 85%in Liaoyang county,Dengta city and Baita district.The major quality problems was blood film scratches,thick blood film off,thick blood film was not hemolytic,too large blood volume,wrong blood film location.Conclusion The blood smear of febrile patients in Liaoyang city was qualified and met the requirements.