2475例胎兒染色體核型檢測及產(chǎn)前診斷指征分析
[Abstract]:Objective to analyze the chromosome karyotype and antenatal diagnosis indication of high risk pregnant women in Guangzhou birth defect intervention project, and to explore the common abnormal karyotype, antenatal diagnosis indication and pregnancy outcome of high risk pregnant women in Guangzhou. Methods from January 2010 to September 2012, 2 475 pregnant women with high risk of predelivery were examined by amniotic cavity or umbilical vein blood puncture, cell culture and chromosome preparation, G banding analysis and postpartum follow-up. Results 38 cases of chromosome abnormalities (12 cases of 21-trisomy, 9 cases of abnormal sex chromosomes, 7 cases of balanced translocation, 5 cases of 18-trisomy, 2 cases of inversion, 2 cases of deletion and 1 case of triploid) were detected. The abnormal rate was 1.54%. Chromosome polymorphism was detected in 132 cases [1, 9, 16 qh 60 cases of, Inv (9), 25 cases of D/Gs and 17 cases of Y polymorphism]. Among the indications of antenatal diagnosis, 668 cases of high risk factors, 449 cases of elderly factors, 158 cases of abnormal factors of B-ultrasound screening and 38 cases of bad pregnancy and delivery history factors were detected by Down's serological screening of 668 cases of high risk factors, 449 cases of elderly factors, 158 cases of abnormal factors by B-ultrasound screening. Conclusion 21-trisomy is the highest proportion of abnormal karyotype in this paper, and the high risk of Down's serological screening is the most important cause of antenatal diagnosis, which is very important for fetal chromosome karyotype analysis and systematic B-ultrasound teratology screening in high risk pregnant women.
【作者單位】: 廣州市人口和計(jì)劃生育科學(xué)研究所;廣州醫(yī)科大學(xué)第三附屬醫(yī)院產(chǎn)前診斷科;
【基金】:國家十一五科技支撐計(jì)劃基金資助項(xiàng)目(2006BAI05A02) 廣東省計(jì)生委基金資助項(xiàng)目(2012256) 廣東省科技廳科技基礎(chǔ)條件建設(shè)基金資助項(xiàng)目(2010B060100014)
【分類號】:R714.5
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