Paediatrics: Dextrocardia

2021-03-05 12:00 AM

The abnormal position of the heart, with the location of the left atrium on the right side and vice versa (i.e. situs inversus), is classified according to the position of the left atrium, the main bronchi, and the abdominal organs.

Dextrocardia

The abnormal position of the heart, with the location of the left atrium on the right side and vice versa (i.e. situs inversus), is classified according to the position of the left atrium, the main bronchi, and the abdominal organs. Inversion of the viscera (abdominal situs inversus) is always associated with atrial inversion. Major malformations of heart structures are usually found in either of the following:

  • Dextrocardia + normal position of abdominal organs.
  • The normal position of the heart (laevocardia) + abdominal situs inversus.

Characteristic heart malformations include—pulmonary stenosis; tricuspid atresia; transposition of the great arteries; anomalous pulmonary venous drainage; atrioventricular septal defects; single ventricle.

 No malformations of the heart structures are found when dextrocardia and abdominal situs inversus (i.e. mirror-image dextrocardia) are present in combination.