This case report highlights the utility of 3D echocardiography in delineating complex congenital heart disease, specifically the rare occurrence of parachute deformity in both atrioventricular valves in the setting of congenitally corrected transposition.
Alerts clinicians to rare adult survival with complex ccTGA variants; leaves open optimal management strategies.
A 23-year-young female presented with mild exertional dyspnoea and palpitation since early childhood. By deploying 2D- and 3D echocardiography, she was detected to have situs solitus, atrioventricular and ventriculoarterial discordance with L-malposition of great vessels, valvular pulmonary stenosis, large secundum atrial septal defect, bicuspid aortic valve, right-sided aortic arch, and moderately severe mitral and tricuspid valve regurgitation. Typical parachute deformities of the morphologically mitral and tricuspid valves were observed. 3D echocardiography revealed a single papillary muscle in the morphologically left ventricle placed anteriorly and providing insertion to tendinous cords and only a moderator band with no other muscle bundles in the morphologically right ventricle placed posteriorly and providing attachment to two strings of cords. Considering the minimal symptoms, conservative treatment was pursued.
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Mohan et al. (2015) studied this question.
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