The issue of routine sonography for low-risk pregnant women continues to be controversial since randomized trials have not been able to demonstrate a clear benefit especially in prenatal outcome in the past. Ultrasonography early in pregnancy can be definitely used for accurate gestational age determination and detection of multiple gestations. Additionally ultrasound scan is the best method for detecting fetal malformation as well as fetuses in high-risk for growth restriction. Since fetal chromosomal and structural anomalies, prematurity and poor placentation account for 90% of poor perinatal outcome, ultrasound could theoretically help in decreasing perinatal mortality and severe perinatal morbidity.
Ultrasound in the diagnosis of congenital anomalies, 1979.
The contribution of low birth weight to infant mortality and childhood morbidity. N Engl J Med 1985;312:82-90.
Ultrasound in prenatal diagnosis: Polemics around routine ultrasound screening for second trimester fetal malformations. Prenat Diagn 2002;22:285-95.
The use of diagnostic ultrasound imaging during pregnancy. JAMA 1984;252:669-72.
The RADIUS Study Group Effect of Prenatal Ultrasound Screening on Perinatal Outcome. NEJM 329(12):821-27
RADIUS Study group. A randomized trial of prenatal ultrasonographic screening: Impact on the detection, management, and outcome of anomalous fetus. Am J Obstet Gynecol 1994;171:392-99.
A randomized trial of prenatal ultrasonographic screening: Impact on maternal management and outcome. Am J Obstet Gynecol 1993;169:483-89.
Routine ultrasound in low-risk pregnancies. Int J Gynecol Obstet 1997;59:273-78.
The performance of routine ultrasonographic screening of pregnancies in the Eurofetus study. Am J Obstet Gynecol 1999;181:446-54.
Antenatal detection of congenital malformations by routine ultrasonography. Obstet Gynecol 1989;73:947-51.
Sensitivity and specificity of routine antenatal screening for congenital anomalies by ultrasound: The Belgian Multicentric Study. Ultrasound Obstet Gynecol 1991;1:102-10.
Effectiveness of routine ultrasonography in detecting fetal structural abnormalities in a low-risk population. BMJ 1991;303:1165-69.
Value of routine ultrasound scanning at 19 weeks: A four year study of 8849 deliveries. BMJ 1992;304:1474-78.
Routine radiographer screening for fetal abnormalities by ultrasound in an unselected low-risk population. Br J Radiol 1992;65:564-69.
Routine ultrasound in early pregnancy. Pregnancy and Childbirth Module. In Enkin MW, Keirse MJNC, Renfrew MJ, Neilson JP (Eds): “Cochrane Database of Systematic Reviews”: Review No. 03872, 9 June 1993. Published through “Cochrane Updates on Disk”, Oxford: Update Software, 1994, Disk Issue 1.
Routine fetal anthropometry in late pregnancy. Pregnancy and Childbirth Module. In Enkin MW, Keirse MJNC, Renfrew MJ, Neilson JP (Eds): “Cochrane Database of Systematic Reviews”: Review No. 03873, 24 March 1993. Published through “Cochrane Updates on Disk”, Oxford: Update Software, 1994, Disk Issue 1.
Does routine ultrasound screening improve outcome in pregnancy? Meta-analysis of various outcome measures. BMJ 1993;307:13-17.
Effects of routine one-stage ultrasound screening in pregnancy: A randomized controlled trial. Lancet 1988;ii:385-88.
Ultrasound screening and perinatal mortality: Controlled trial of systematic one-stage screening in pregnancy. The Helsinki Ultrasound Trial. Lancet 1990;336:387-91.
Randomized controlled trial of ultrasonographic screening in pregnancy. Lancet 1984;207-11.
A randomized trial of routine prenatal ultrasound. Obstet Gynecol 1990;76:189-94.
Congenital heart abnormalities and cardiac dysfunction: How prenatal diagnosis hanged the chances for survival. Orv Hetil 140:815-18.
Detection and assessment of pyelectasis in the fetus: Relationship to postnatal renal function. Obstet Gynecol 92:226-31.
Prediction of patient-specific risk of early preterm delivery using maternal history and sonographic measurement of cervical length: A population-based prospective study. Ultrasound Obstet Gynecol 2006;27:362-67.
Some thoughts on the true value of Ultrasound (Editorial) Ultrasound Obstet Gynecol 2007;30: 671-74.
Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: A randomized placebo-controlled double-blind study. Am J Obstet Gynecol 2003;188:419-24.
Progesterone and the risk of preterm birth among women with a short cervix. N Engl J Med 2007;357:462-69.
Transvaginal ultrasound in pregnancy: Its acceptability to women and maternal psychological morbidity. Ultrasound Obstet Gynecol 2003;22:508-14.
Routine ultrasound screening for the prediction of gestational age. Obstet Gynecol 1985;65:613-20.
Long-term experience of general ultrasound screening in pregnancy. Am J Obstet Gynecol 1983;146:942-47.
Sonographic diagnosis of fetal growth disorders. Clin Obstet Gynecol 1988;31:44-52.
Benefits of ultrasonic screening of a pregnant population. Acta Obstet Gynecol Scan Suppl 1978;78:5-14.