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Examinations during pregnancy

Ultrasound checks


First trimester of pregnancy (11 to 14 weeks):

- Evidence that the child is alive and in the right place in the womb

- Determining the gestational age and therefore the expected date of the delivery. This is of great importance to determine the reduced growth of the child in late pregnancies

- Detect if there are twins or multiples

- Identify the absence of severe malformations of the baby through a precise inspection of the shape of the body

- Measurement of the nuchal translucency as an indication of a possible chromosome disorder (e.g. Down syndrome / Trisomy 21)


Further diagnostics: First-trimester test: The combination of the nuchal translucency measurement and determining the mother's blood can provide an assessment as to whether there is a big or small risk of a genetic malformation. This helps in deciding whether an invasive diagnostic test such as an amniocentesis is advisable.

Second trimester of pregnancy (20 to 23 weeks):

- Assessment of the amount of amniotic fluid and the growth of the child

- Detection of severe malformations through the careful examination of all the organs including the heart

- Determining the position of the placenta

If the results from the ultrasound scans are normal, you may assume with great probability that everything is alright. The fine diagnostics of the ultrasound scan are able to detect very serious problems with the foetus with an accuracy of around 90%. The type of problems it detects might be the cause of a child not surviving. Minor problems will not be detected until after the birth in some circumstances. One must also bear in mind that certain developmental disorders only arise during pregnancy and are therefore not yet visible in the first half of the pregnancy. Normal results from the ultrasound scans influence the ongoing care you receive during your pregnancy and help to give you peace of mind. If a problem has been detected, the ultrasound scan can provide both you and us with important information as the basis for making sound decisions.

Obstetrics See-Spital
Asylstrasse 19
8810 Horgen

Tel. Midwives:
044 728 17 00

Tel. Lactation consultant:
044 728 17 87