Congenital heart disease overview
Congenital heart disease overview
Congenital heart disease can be broadly classified into cyanotic and acyanotic. Acyanotic congenital heart disease can be further subdivided into left to right shunts, obstructive lesions and a miscellaneous group. Cyanotic congenital heart disease can be classified into those with decreased pulmonary blood flow and those with reduced pulmonary blood flow.
Left to right shunts include atrial septal defect, ventricular septal defect, patent ductus arteriosus and aortopulmonary window. One person can have more than one of these shunts. Large left right shunts can induce the development of pulmonary hypertension and lead to reversal of shunt later. Thus they develop cyanosis and are called Eisenmenger syndrome. Left to right shunts are subdivided into pre tricuspid and post tricuspid shunt. Pre tricuspid shunts are atrial septal defects and partial anomalous pulmonary venous drainage, though the latter is often associated with atrial septal defect. Post tricuspid shunts are ventricular septal defect, patent ductus arteriosus and aortopulmonary window. Of these aortopulmonary window has the highest chance of early development of pulmonary hypertension and Eisenmenger reaction.
Obstructive lesions include pulmonary stenosis, aortic stenosis and coarctation of aorta.
Miscellaneous group of acyanotic lesions include anomalous origin of left coronary artery from pulmonary artery (ALCAPA), congenital mitral stenosis, congenital mitral regurgitation et...
Source: Cardiophile MD - Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: HBC Source Type: blogs
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