The value of MCV and MCH on screening thalassanemia in prenatal diagnosis

Objective To explore the clinical value of mean corpuscular volume(MCV),mean corpuscular hemoglobin(MCH),hemoglobinA2(HbA2)'s result in hemoglobin electrophoresis joint detection in the prenatal diagnosis of Thalassemia. Methods MCV and MCH were detected by automatic blood cell analyzer,two hundred samples with MCV ＜ 80fl, MCH ＜ 26pg as experimental group and two hundred samples with MCV ＞ 80fl,MCH ＞ 26pg as control group were tested the HbA2 by hemoglobin electrophoresis. The correlation analysis was performed. To analysis the sensitivity and Specificity of the MCV and MCH as the screening method of the Thalassanemia. Results Of the 200 cases, 58.2% were detected for the Thalassanemia in the experimental group,2% were detected for the Thalassanemia in the control group. There were significant differences between the experimental group and the control group(t = 18. 214, P ＜ 0.01). Conclusion MCV and MCH could screen the Thalassanemia as effective index. Suggestted the suspects should do further examination for explicit diagnosis. Key words: MCV; MCH; Thalassanemia