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correction, at the atrial level, of hemodynamic abnormality caused by transposition of the great arteries by an intraatrial baffle to direct pulmonary venous blood through the tricuspid orifice into the right ventricle and the systemic venous blood through the mitral valve into the left ventricle.
Synonym(s): Mustard procedure
Mustard procedureA procedure developed by Dr Wm Mustard at the Hospital for Sick Children in Toronto for correcting transposition of the great vessels, a congenital cyanotic heart disease which, untreated, has a 20% one-year survival. About 80% of those treated with Mustard survive to age 20.
A baffle (artifical tunnel) is sewn into the infant’s heart, which reroutes blood from the venae cavae to the left atrium, then to the left ventricle, which then pumps deoxygenated blood to the lungs. Once the oxygenated blood returns from the lungs, it is pumped by the right ventricle to the systemic circulation.
[William Thornton Mustard, Canadian cardiac surgeon, 1914–1987]
A surgical procedure to repair transposition of the great vessels, in which a baffle is placed to shunt blood between the right and left atria, allowing more oxygenated blood to be circulated systemically.
Mustard,William T., Canadian thoracic surgeon, 1914-1987.
Mustard operation - correction at the atrial level of hemodynamic abnormality due to transposition of the great arteries. Synonym(s): Mustard procedure
Mustard procedure - Synonym(s): Mustard operation