Value of routine ultrasound scanning at 19 weeks: a four year study of 8849 deliveries.

摘要: OBJECTIVE--To evaluate the effectiveness of routine ultrasound scanning at 19 weeks' gestation in an unselected population terms accuracy detection fetal structural abnormality and effect on obstetric neonatal care. DESIGN--Prospective study over four years. Scans performed by radiographers with overall supervision a radiologist. SETTING--Ultrasound department district general hospital. SUBJECTS--All pregnant women were offered scans; 8523 8849 (96%) accepted. MAIN OUTCOME MEASURES--Information obtained from hospital records, genetic analysis, post-mortem findings. RESULTS--166 anomalies occurred; 140 detected weeks (sensitivity 85%; specificity 99.9%). In 27 cases fetuses shown to have severely crippling or lethal abnormalities; termination pregnancy was requested 25. Early diagnosis influenced timing place delivery babies severe cardiac gastrointestinal anomalies. CONCLUSION--Scanning availability can reduce perinatal morbidity mortality. Scanning be adequate counselling facilities close cooperation between radiographers, midwives, obstetricians, paediatricians,