Tricuspid atresia pathophysiology: Difference between revisions
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==Overview== | ==Overview== | ||
Tricuspid atresia is the third most common cyanotic [[congenital heart disease]] whether the non oxygenated blood can not flows from right atrium to right ventricle due to nondevelopment or agenesia of tricuspid valve. Right ventricle is small and pulmonary artery in some cases is hypoplastic. ASD or PFO are necessary for passing the blood from right atrium to left system and without them the infants will not survive.Majority of infants with die without palliative surgery. | |||
==Pathophysiology== | ==Pathophysiology== | ||
Revision as of 10:41, 21 August 2020
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Tricuspid atresia Microchapters |
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Tricuspid atresia pathophysiology On the Web |
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Risk calculators and risk factors for Tricuspid atresia pathophysiology |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Keri Shafer, M.D. [2] Priyamvada Singh, MBBS [3]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [4]
Overview
Tricuspid atresia is the third most common cyanotic congenital heart disease whether the non oxygenated blood can not flows from right atrium to right ventricle due to nondevelopment or agenesia of tricuspid valve. Right ventricle is small and pulmonary artery in some cases is hypoplastic. ASD or PFO are necessary for passing the blood from right atrium to left system and without them the infants will not survive.Majority of infants with die without palliative surgery.
Pathophysiology
Normal Human Heart
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Tricuspid Atresia
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This defect occurs during prenatal development. Because of the lack of an A-V connection, an atrial septal defect (ASD) must be present to maintain blood flow. Also, since there is a lack of a right ventricle there must be a way to pump blood into the pulmonary arteries, and this is accomplished by a ventricular septal defect (VSD). Blood is mixed in the left atrium. Because the only way the pulmonary circulation receives blood is through the VSD, a patent ductus arteriosus is usually also formed to increase pulmonary flow.
Associated Conditions
Gross Pathology
Shown below is an example of Tricuspid atresia characterized by a dimple in the floor of the right atrium.
