cyanotic heart disease-cyanotic congenital heart disease

Cyanotic congenital heart disease or CCHD is a medical condition that usually present at birth and resulting in decreased level of oxygen into the blood. Bluish tint to the skin is major common symptom of cyanotic congenital heart disease that called cyanosis.

Several types of disease or defect can cause cyanotic congenital heart disease, including:

  1. Issues with human heart valves.
  2. An interruption in the aorta.
  3. Thickened walls of the ventricles of the heart.

In several cases, normally more than one defect is present.

Imaging tests like echocardiograms and X-ray can confirm the presence of problems or defects causing cyanotic congenital heart disease. Sometime medication can help to relieve the symptoms of cyanosis. But most of the time patient needs to have medical surgery to prevent the defect causing of the disease.

What is cyanotic heart disease?

Cyanotic heart disease may happen due to group of some heart problems and heart disease. Cyanotic heart disease is normally present at birth or congenital and resulting low oxygen level in blood.

Risk factors of cyanotic congenital heart disease

In most of the case, an infant or new born baby will be born with the cyanotic congenital heart disease due to some genetic issue. A new born baby is more risk at congenital heart diseases when there is a family history of this disease. Certain genetic syndromes and condition would be accompanied by defect that may cause cyanotic congenital heart disease, such as marfan, down, noonan syndromes and turner.

On the other hand in fewer instance, some outside also can cause cyanotic heart disease. Sometime exposure of a pregnant mother to poisonous chemical and some illegal drugs may also lead to cyanotic heart problem in the new born baby. Infections during pregnancy period are also a major factor that is poorly controlled.

Causes of cyanotic heart disease

There are several physical defects or problems in the heart that are one of the major causes of cyanotic heart disease. Most of the time infants are born with the several defects. Normally few of these problems or defects that are most common causes of cyanotic heart disease including:

Tetralogy of Fallot (TOF)

TOF or Tetralogy of Fallot is one of the most common causes of cyanotic congenital heart disease. It is actually the combination of 4 several defect, that’s why it is called tetralogy of Fallot. TOG or Tetralogy of Fallot includes a hole between left and the right ventricles of the heart, a misplaced aortic valve, a thickening of the right ventricle muscles and a narrow pulmonary valve. Normally this defects lead to the blood with and without oxygen getting mixed one another and then pumped throughout the whole body.

Transposition of the Great Arteries or TGA

In new born baby with TGA, the aortic and the pulmonary valves and their arteries have normally switched positions and the result is occurring low oxygen blood that should go into the lungs through pulmonary arteries.

Tricuspid Atresia

In these types of defect or problems, the tricuspid valve has developed unusually or is missing entirely. This condition causes the disruption of the normal blood flow and resulting in low oxygenated blood being pumped out of the body.

Total anomalous pulmonary venous connection

TAPVC or total anomalous pulmonary venous connection occur when veins that bring high oxygenated blood from the lungs into the heart that are connected into the right atrium. Normally they should be connected to the left atrium. This condition may also be happened due to the blockage in the vein between the heart and the lungs.

Cyanotic congenital heart disease symptoms

The classic sing and symptoms of the cyanotic congenital heart disease are cyanosis, then the blue coloring of skin, which happen particularly in the finger, lips and toes. Another most common symptom is difficult to breathing during physical activities or exercise. Some children and infant also experience spells during which the oxygen level in blood becoming very low and they get hyperventilate, exhibit blue skin and anxious. Other symptoms of cyanotic heart disease are listed out below:


  1. Low birth weight.
  2. Rapid breathing.
  3. Cyanosis.
  4. Delayed growth.
  5. Poor feeding.
  6. Large finger or clubbed fingers.


  1. Rapid heartbeat.
  2. Heavy sweating.
  3. Rapid breathing.
  4. Slow weight gain.

Tricuspid Atresia

  1. Cyanosis.
  2. Tiredness.
  3. Shortness of breath.
  4. Difficulty feeding.
  5. Heavy sweating.
  6. Slow growth.
  7. Chronic respiratory infections.

TAPVC without a Blockage

  1. Shortness of breath.
  2. Chronic respiratory infections.
  3. Slow growth.

All Comments

  • Very detailed post with exact diagram. Helpful for medical student and biochemist.

    Nick Allen January 3, 2017 3:38 pm Reply

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