How long does it take for the enlarged lateral ventricle to be absorbed?

The lateral ventricle is a structure in our human brain. It is a particularly important structure. It may also cause some problems, such as ventriculomegaly, but it can be treated. In order to prevent accidents, you still need to go to the hospital for a more general examination. It can be absorbed, so we don’t need to worry too much. So how long will it take for the widening of the lateral ventricle to be absorbed?

The enlargement of the child's lateral ventricles may be caused by congenital brain development abnormalities and cerebrospinal fluid circulation disorders. Regarding the condition of your fetus, it is recommended that you go to a regular hospital for regular ultrasound examinations to understand the child's development. If the lateral ventricles continue to widen, congenital hydrocephalus should be considered, and it is recommended to go to a regular hospital for induced labor. You should eat a light diet, get enough rest, and eat more vegetables and fruits.

The fetus's lateral ventricles are currently just widened. If they don't continue to widen, it's no big deal and don't be too nervous. There is currently no good treatment, only observation and follow-up. If there is no further widening during the reexamination, then everything is fine. I wish you all the best.

It is normal for the fetal lateral ventricle width to be less than 1, 1-1.2 will generally be absorbed by itself, and 1-1.5 is mild. In fact, the important indicator for judging hydrocephalus is spina bifida, and more than 1.5 cm is abnormal. The widening of the lateral ventricle is mostly caused by excessive fetal cerebrospinal fluid, which can mostly be absorbed by itself in the later stages of the fetus. Do an ultrasound every few weeks to see if it continues to widen. Another point is that if the lateral ventricle widens too much, the doctor will suspect hydrocephalus. In addition to the widening of the ventricle, hydrocephalus also has an obvious accompanying symptom of spina bifida. Spina bifida can be checked by MRI. If not, the fetus should be healthy.

The widening of the lateral ventricle can usually be absorbed by itself in the later stages of the fetus. A survey shows that the fetus absorbs it fastest between the 28th and 32nd weeks of pregnancy. Of course, there are also fetuses that absorb faster in other time periods. This is because the development of each fetus is different. What pregnant women need to do is to have regular B-ultrasound to see if the tube continues to widen. If not, there is no need to be too nervous.

The principle of absorption of lateral ventricle widening: When the fetus is in the rapid growth period, the development of the fetal brain is sometimes faster than the aqueduct system in the brain. When the amount of cerebrospinal fluid produced in the brain is significantly greater than the circulation capacity of the aqueduct system, mild hydrocephalus will occur. However, this mild hydrocephalus will gradually disappear as the aqueduct system in the brain develops and improves. Therefore, pregnant women just need to pay attention to rest and eat nutritiously.

Normal values ​​of fetal lateral ventricle enlargement: The width of the lateral ventricle is an important indicator for predicting fetal nervous system function and is a routine item in prenatal systematic ultrasound examination.

Normal value: During 16-38 weeks of pregnancy, the normal width of the lateral ventricle is generally 7.6mm±0.6mm. When the width of the body of the fetal lateral ventricle reaches 10-15mm, it is called mild ventriculomegaly, and the incidence rate is about 1%.

If the width of the lateral ventricle exceeds 15mm, it is severe lateral ventricle enlargement, and when it is accompanied by a shrinkage of the choroid plexus and a hanging state, it is also called hydrocephalus.

In addition, if the fetus has mild ventriculomegaly without any other structural abnormalities, it is called isolated mild ventriculomegaly. About 10% of fetuses with isolated mild ventriculomegaly have chromosomal abnormalities, the most common of which is trisomy 21. Viral infection during pregnancy, especially cytomegalovirus infection, can also lead to abnormal manifestations such as isolated ventriculomegaly and paraventricular mixed echoes.