Acyanotic congenital heart disease

Acyanotic congenital heart disease comprises numerous aetiologies, which can be divided into those with increased pulmonary vascularity (pulmonary plethora) and those with normal vascularity:

Note that certain congenital defects may initially cause acyanotic congenital heart disease and later cyanotic congenital heart disease. Conditions with a left-to-right shunt (e.g. VSD, ASD) may initially be acyanotic but over time can cause maladaptive changes in the right ventricle and pulmonary vasculature, leading to pulmonary hypertension and Eisenmenger syndrome. When this occurs, the shunt is reversed and deoxygenated blood enters the systemic circulation.

Congenital heart disease

There is more than one way to present the variety of congenital heart diseases. Whichever way they are categorised, it is helpful to have a working understanding of normal and fetal circulation, as well as an understanding of the segmental approach to imaging in congenital heart disease.

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Article information

rID: 8471
Tag: heart, refs
Synonyms or Alternate Spellings:
  • Congenital heart disease - acyanotic

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Cases and figures

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    Case 1: ventricular septal defect
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    Case 2: AVSD
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    Case 3: atrial septal defect
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    Case 4: patent ductus arteriosus
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