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A ventricular outflow tract is a portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries. [1]The right ventricular outflow tract (RVOT) is an infundibular extension of the ventricular cavity that connects to the pulmonary artery.
A ventricular outflow tract obstruction is a heart condition in which either the right or left ventricular outflow tract is blocked or obstructed. These obstructions represent a spectrum of disorders. Majority of these cases are congenital, but some are acquired throughout life. [1]
This open-heart surgery is designed to relieve the right ventricular outflow tract stenosis by careful resection of muscle and to repair the VSD. [58]: 154 The right ventricle outflow tract can be reconstructed using mainly 2 procedures: a transannular patch (TAP) or a pulmonary valve-sparing procedure (PVS). The decision on the type of the ...
Usually, APVS occurs together with other congenital heart defects, most commonly ventricular septal defect and right ventricular outflow tract obstruction. It is sometimes considered a variant of Tetralogy of Fallot. [1] The first case of absent pulmonary valve syndrome was reported Crampton in 1830. [2]
A diagnosis of TOF is usually made with echocardiography, which can even be done prenatally. Most patients with tetralogy of Fallot will have cardiac repair surgery in the first year of life, where the ventricular septal defect is closed with a patch, and the right ventricular outflow tract is enlarged.
Risk factors for stent fractures include younger age, smaller tract diameter, and position of the valve directly below the sternum. [4] Tears or ruptures of the right ventricular outflow tract may occur during the procedure, especially if the tract is already heavily calcified. [4] This is reported to occur in up to 9% of procedures. [4]
[1] [2] It allows the surgeon to reconstruct the right ventricular outflow tract without needing to connect the proximal and distal sections with a graft. [2] [3] It also enables the surgeon to avoid compressing the coronary arteries and relieves compression of the bronchi in cases where the pulmonary artery is severely dilated or aneurysmal.
Scar-related monomorphic ventricular tachycardia is the most common type and a frequent cause of death in patients having survived a heart attack, especially if they have weak heart muscle. [12] Right ventricular outflow tract (RVOT) tachycardia is a type of monomorphic ventricular tachycardia originating in the right ventricular outflow tract ...
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