Single Ventricle Defects | Causes and Symptoms

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What causes single ventricle defects?

Single ventricle defects occur within the first eight weeks of a baby’s development, when the heart is first formed. Most of the time, these types of heart defects occur with no clear reason. Some congenital heart defects may have a genetic link, causing heart problems to occur more often in certain families.

What are the symptoms of single ventricle defects?

In most cases, the symptoms of single ventricular defects are usually noted shortly after birth. The most common include:

  • blue color of the skin, lips and nailbeds (cyanosis)
  • rapid breathing
  • labored breathing
  • rapid heart rate
  • cool, clammy skin
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