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Bluish Color Of Baby's Skin: Could Be Tricuspid Atresia

In its place is fibrous tissue that closes it, preventing the passage of oxygen-poor blood from the right atrium to the right ventricle. The right ventricle is often small (hypoplastic) due to reduced blood flow as early as fetal development.

In tricuspid atresias that are not life-threatening, there is at least one defect in the wall (septum) separating the two atria or the septum separating the two ventricles (usually both). This makes it possible for non-oxygenated blood to mix with oxygenated blood.

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 Tricuspid Atresia

Tricuspid atresia (TA) is a rare congenital heart defect. Prenatal diagnosis can be done on the four-chamber view, which shows an atretic tricuspid valve with no mobility and absence of flow across it. In most cases, there is a ventricular septal defect and a variable degree of diminished development of the right ventricle and pulmonary artery.

Articles of Interest

Single-Ventricle Physiology Episode 1: Tricuspid Atresia

In this episode, listeners will learn about the anatomy-associated anomalies, pathophysiology, and clinical presentation of tricuspid atresia as well as an approach to its diagnosis and management.

Tricuspid atresia versus other complex lesions

In 1971, Fontan and Bauder' demonstrated the feasibility of a physiologic correction of tricuspid atresia by means of a total atriopulmonary shunt. Since then, several variations of this principle, the so-called modified Fontan procedures, have been applied to the treatment of an increasing variety of congenital malformations."

Resources

StatPearls

Tricuspid atresia (TA) is a cyanotic congenital heart defect characterized by the complete agenesis of the tricuspid valve (TV). That is, there is no communication between the right atrium and ventricle. There are several subtypes of this disease with varied clinical presentations based on the degree of pulmonary blood flow.

TeachMe Paediatrics

Tricuspid atresia is the 3rd most common cyanotic congenital heart disease with a prevalence of 1 per 10,000 births. It accounts for 1-3% of all congenital heart anomalies.