Background: In the first 3 months of pregnancy, gestational age to calculate one can measure fetal size bag, the butt length of the embryo pregnancy by ultrasound. After 3 months, estimated gestational age based on peak diameter, femur length, diameter of the cerebellum, the average diameter of two eye holes.\r\n', u'Objectives: Measure and analyze the structure of the fovea, the average diameter of the fovea, as measured two other indicators of the fetus on ultrasound. Learn more connections with the diameter of the fetal development, with gestational age, peak diameter.\r\n', u'Subjects and method: Measuring the interorbital distance of the fetus for pregnant women with regular MP from 28-30 days by ultrasound and with gestational age from 14 weeks of gestation on. Using 2D ultrasound, measuring the indicators of the fetus as the distance between the fovea, peak diameter, transparent front wall, two-hump peak.\r\n', u'Results:The results showed that: there\u2019s a relation between the diameter of the orbital distance with its gestational age. It is demonatrated as followed: Y=0.7873x + 4.0273 with R = 0.8412. The distance between the fovea and peak diameter correlated by the equation Y = 2.1719x + 4.4799 v\u1edbi R = 0.7517. It is more easy and accurate to measure the interorbital distance for pregnancy in second trimester. \r\n', u'Conclusion: Basing on this result, whenever the pregnant woman could not remember exactly the first day of her last MP or her MP is long, we can use the graph of this relation to estimate the weight of the fetal and the day of delivery.\r\n', u'
Gestational Age/ ultrasonography

Background: In 2005, a report showed that the mortality of fetal malformations accounts for 12.9% causes of death in newborns. It is importance for obstetricians and society as a whole to detect prenatal fetal malformations. Objective: To define various factors that might influence malformations in newborns. Subjects and method: A comparison study performed on 926 pregnant women with fetal malformations and 1852 pregnant women without fetal malformations amongst 20,345 pregnant women screened by prenatal ultrasound at the Central Hospital of Obstetrics and Gynecology, from July 2003 to July 2006. Results and conclusions: In comparing to 1826 pregnant women without fetal malformations, the fetal malformations were more frequently in young or older mothers (19 years old or less and 40 years old or over), farmers, the mother had been suffering from fever in the first three months of pregnancy; parents exposed to chemicals and pesticides. Mother\u2019s that previously had children with congenital malformation affected significantly the fetal malformation.
Fetal malformation ; congenital malformation ; pregnancy

Background: There are several prenatal screening methods, but ultrasonography is increasingly used as a routine method for prenatal screening because of availability. Objectives: The study was conducted to investigate the value of ultrasonography in prenatal diagnosis of birth defects. Subjects and method: Between 01/07/2003 and 31/3/2006 there were 20,345 pregnant women receiving prenatal ultrasonography screening for congenital defect. Among these pregnancies, prenatal ultrasonography findings were compared to postnatal clinical observations. Results: Among the studied pregnancies, there were 657 cases with 772 birth defects recorded in ultrasonography. The sensitivity and specificity of ultrasonography for detecting defects of neural tube, head and neck, cardiopulmonary, abdomen, limb bone and urinary system were 97.07% and 99.98%, 94.21% and 100%, 100% and 100%, 94.87% and 99.98%, 91.01% and 99.99%, 100% and 100%, respectively. Defects not detected by ultrasonography were minor and had no serious impact on the children\u2019 physical and mental health. Conclusion: Overall, the ultrasonography had the sensitivity of 92.49% and the specificity of 99.96% in screening for birth defects.
Ultrasonography ; Birth defect.

Background: According to WHO, there are 5 million deaths from kinds of injury a year in the world, of which 875000 deaths occur in children under 18 years old. Injury leads to 40000 deaths which account for 10.7% deaths due to all other causes a year in VietNam. Objective: To show conclusions of the situation of child injury, recommendations for prevention of child injury and methods in order to enhance emergency activity in Vietnam. Subjects and method: The authors collected information about all patients who had emergencies due to injury at Viet Duc hospital, from March 26th 2006 to Octorber 26th 2006. However, supervised cases were the patients under 18 years old who were examined and treated at the Department of Emergency. Results: During the period of study, 2536 patients under 18 years old were examined for injury, of which death and coming back home for death were 83 cases (3.27%). 974 children had emergency resulted from injury: male was more than female: 697 verus 227. The leading causes of child injury were fall and traffic accident, respetively 34% and 60%. The most common traumas were traumatic brain injury (45%), limbs injury (41%). Although most of cases had first aid at the hospitals in district or province level, the rate of non-first aid cases was high (34%). Conclusion: Child injury is a leading cause of child death in hospitals. Methods for prevention of child injury should focus on educating and propagandizing to minimize injuries caused by traffic accident and fall.
Wounds and Injuries ; Child