Velamentous Cord Insertion – Causes, Signs and Treatment

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A pregnant woman at doctor's

Pregnancy is a wonderful journey that brings a lot of changes to a woman’s body. But, if you are pregnant for the first time, you will not be aware of what changes it will bring and you might ignore it considering them as normal. However, you should be careful in your nine months of pregnancy. It is important to look for signs that may indicate that something is amiss. One of the cases of abnormal pregnancy is Velamentous cord insertion.

There are various signs and causes to look out for when it comes to this abnormal pregnancy, and here we will also list down how to identify and treat such a condition.

What is a Velamentous Cord Insertion?

Velamentous cord insertion is a case of an abnormal pregnancy where the umbilical cord is abnormally inserted into the placenta. In a normal pregnancy, the blood travels from the centre of the placenta into the baby’s blood vessels via the umbilical cord. With a velamentous cord insertion, the baby’s blood vessels remain unprotected, and the jelly-like substance that surrounds them, i.e. Wharton’s jelly’ is missing.

During a normal development period, the umbilical cord attaches correctly to the centre whereas in a velamentous one the cord inserts itself into the amniotic membrane, rather than in the placenta. It is a rare complication that needs to be regularly monitored by the doctor in order to ensure that both the mother and the baby are healthy. An occurrence can be detected early on in the pregnancy; it can prove to be dangerous if not addressed. It is easy to see during the second trimester of the pregnancy.

Causes of Velamentous Cord Insertion in Pregnancy

In 90% of pregnancy, the umbilical cord either inserts normally into the centre portion of the placenta or is slightly off centre; however, it is very different in case of a velamentous cord insertion. There are no definitive causes fora velamentous cord insertion, however, some of the possible causes are as follows:

  • If the mother is older then there is a possibility of Velamentous cord insertion.
  • If there is a chance of multiple pregnancies, then there is a possibility of Velamentous cord insertion.
  • If the mother smokes during the pregnancy, then also there are higher chances of the condition to occur.
  • Miscarriages in the past may also increase the chances of this condition.

Who is Most at the Risk?

Mothers who are older and the ones who are having multiple pregnancies such as twins or, triplets are at most risk for a velamentous cord insertion. Many studies have shown that it is a condition which cannot be prevented and can happen to any woman who is in her maternal age.

Risk Factors for Velamentous Cord Insertion

The condition is 9 times more common if it is a twin pregnancy than a single pregnancy. If it is a case of multiple pregnancies then the risk of a velamentous cord insertion is high for a mother. If a mother smokes then the chances increase more of a velamentous cord insertion. Although, please do note that while these have been possible risk factors, there is no guarantee that you will not develop this condition. Utmost care must be taken during pregnancy to ensure a happy and healthy baby.

Signs of a Velamentous Cord Insertion

There are several signs of a Velamentous cord insertion early on in the pregnancy itself, which can be detected so that the parents-to-be can discuss the next steps.

Some of the signs are:-

  • A decrease in blood supply to the foetus. This can be detected during routine checks.
  • Growth and development of the foetus is not up to the standard pregnancy.
  • Blood vessel compression is also another sign.
  • Excessive bleeding or haemorrhage during velamentous cord insertion delivery.

How Is the Diagnosis Done?

It is easy to diagnose a Velamentous cord insertion. One of the best ways to do it is through a velamentous cord insertion ultrasound. During the early days of the pregnancy, preferably in the first trimester, it is good to get an ultrasound to understand the baby’s growth and development. It is also the right time to check for a velamentous cord insertion, and this can be done via physical examination and ultrasound.

How Is Velamentous Cord Insertion Treated?

While there is no treatment or medicines for a Velamentous cord Insertion, precautions can be taken to manage the growth and development of the foetus. All treatment is directed towards managing complications related to the foetus thereby making it a top priority. Delivery through an elevated C- section is considered in order to avoid further complications.

Complication of a Velamentous Cord Insertion

While most delivery occurs normally even with a velamentous cord insertion, there are several complications that can occur with the condition sometimes. Here are the complications associated with it:

  • Preterm birth.
  • It can cause the blood flow towards the foetus to reduce thereby affecting its development and growth.
  • Less blood flow can also result in intrauterine growth retardation and other congenital abnormalities.
  • Compression of blood vessels can cause foetal distress.
  • Excessive blood loss during delivery can result in foetal mortality.
  • If the velamentous membrane blood vessels are inside the cervical outlet of the uterus, it may rupture leading to early labour and stillbirth. It is known as vasa previa.

How Can You Prevent a Velamentous Cord Insertion?

At present, there is no clear-cut way to prevent this condition from occurring. However, precaution can be taken to ensure a healthy and safe natal care. It is important for the mother to not smoke or drink during pregnancy as it can lead to many other complications apart from a Velamentous cord insertion. In the majority of the cases, the delivery will be normal, but it is important to consult your gynaecologist and prepare a birth plan if you have been diagnosed with this condition.

It is important to find out if you have a Velamentous cord insertion at the very beginning of the pregnancy so that you can prepare and ensure a good pregnancy plan and birth.

Also Read: Uterus Abnormalities

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