Detailed ultrasound in the first trimester (first trimester anomaly scan)

Pregnancy is a healthy physiological process. The vast majority of pregnancies result in the birth of a healthy individual. However, pregnancy is a closed box. There is no technology yet to guarantee that a pregnancy will continue without any problems and that the baby will be 100% healthy. Babies in the womb should be examined in detail when they are 3 months and 5 months old. The recommendations of leading international scientific societies are in this direction. Thanks to these examinations, some problems that may develop in the future during pregnancy and some diseases of babies can be recognized and precautions can be taken for some conditions.

Obstetricians, who follow the pregnancy, also check the baby with ultrasonography during each examination. However, these studies are not detailed reviews. Because at least 15 minutes should be allocated to each baby during the detailed examination. The position of the baby in the mother’s womb sometimes does not allow for detailed examination. In such cases, the examination should be repeated at half-hour intervals. It is technically not possible for obstetricians who see their patients in the outpatient clinic to allocate this time.

Radiology specialists and perinatology specialists who have knowledge of the subject can perform the first trimester anomaly scan, that is, the detailed ultrasonography examination of the first three months. Likewise, the obstetrician who follows the pregnancy can do it if he can spare enough time and has a good command of the detailed ultrasonography examination.

The first three detailed ultrasonography examinations have not yet become widespread in our country. It is widely practiced in Europe and America. If the family wishes, during this examination, ‘chromosomal anomaly screening’, popularly known as intelligence test or double test, can be performed along with two hormone analyzes in the blood taken from the mother’s arm using some measurements of the baby (nuchal thickness, nasal bone and head-buttock distance). . It is the only double test that is commonly performed in our country. Physicians following the pregnancy measure the nuchal translucency and add a blood test to it and apply only the screening test.

The point to keep in mind here is this. Detailed ultrasonography in the first three months is not just about measuring nuchal translucency. The measurement of nuchal translucency and the double test based on it are only a screening test and measurements should be made very carefully. In many countries in Europe and America, a license is required from physicians that they can make these measurements correctly. The Fetal Medicine Foundation (FMF), located in England, provides free services to the whole world in this regard. There are approximately 20 physicians licensed from FMF in our country. It would be right for families who want to have a double test and to question the dominance of the physicians who measure the nuchal translucency. Physicians who are well-versed in the subject already do the detailed examination, which is more important than these measurements.

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