What is the most common type of truncus arteriosus?

What is the most common type of truncus arteriosus?

Type I/A1 is the most common form, found in ~60% of patients with Truncus Arteriosus. Surgical repair is required due to likely development of congestive heart failure.

Is truncus arteriosus common?

Occurrence. Truncus arteriosus occurs in less than one out of every 10,000 live births. It can occur by itself or as part of certain genetic disorders. There are about 250 cases of truncus arteriosus per year in the United States.

How many types of truncus arteriosus are there?

There are 4 types of truncus arteriosus (types I, II, III and IV). The type depends on where the pulmonary arteries are and whether they formed as a single artery or several arteries. This is a normal heart.

What is truncus arteriosus Wikipedia?

The truncus arteriosus is a structure that is present during embryonic development. It is an arterial trunk that originates from both ventricles of the heart that later divides into the aorta and the pulmonary trunk.

What are the causes of truncus arteriosus?

Truncus arteriosus occurs when your baby’s heart is developing in the womb, and is, therefore, present at birth (congenital). In most cases the cause is unknown.

Is truncus arteriosus genetic?

The exact cause of truncus arteriosus is not known. It has been suggested that some cases may develop due to the interaction of many genetic and environmental factors (multifactorial inheritance). The malformation is the result of an error in embryonic development.

Is truncus arteriosus cyanotic or Acyanotic?

Truncus arteriosus, also referred to as common arterial trunk (CAT), is generally classified as a cyanotic congenital heart disease characterized by a single arterial trunk arising from the heart and supplying both pulmonary and systemic circulations. Cyanosis exists by virtue of it being an admixture lesion.

What does truncus arteriosus cause?

The abnormal heart structures of truncus arteriosus result in severe problems with blood circulation. Because the ventricles aren’t separated and all blood exits from a single vessel, the oxygen-rich blood and the oxygen-poor blood mix — resulting in blood that doesn’t carry enough oxygen.

What does arteriosus mean?

: a short broad vessel in the fetus that connects the pulmonary artery with the aorta and conducts most of the blood directly from the right ventricle to the aorta bypassing the lungs.

What are the characteristics of truncus arteriosus?

If you or your baby has truncus arteriosus, one large vessel leads out of the heart, instead of two separate vessels, and there’s a hole in the wall between the ventricles (ventricular septal defect).

What is the main branches of truncus arteriosus?

Truncus arteriosus type I is characterized by origin of a single pulmonary trunk from the left lateral aspect of the common trunk, with branching of the left and right pulmonary arteries from the pulmonary trunk.

What arises from the truncus arteriosus?

In babies born with truncus arteriosus, the single large vessel never finished dividing into two separate vessels and the wall separating the two ventricles never closed completely, resulting in a single blood vessel arising from the heart, and a large hole between the two chambers (ventricular septal defect).