Polish Ultrasound Society (Polskie Towarzystwo Ultrasonograficzne)
Subject: Medicine
ISSN: 2084-8404
eISSN: 2451-070X
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Wojciech Mądry * / Maciej A. Karolczak / Krzysztof Grabowski
Keywords : Shone’s syndrome, parachute mitral valve, supravalvar mitral ring
Citation Information : Journal of Ultrasonography. Volume 17, Issue 70, Pages 206-211, DOI: https://doi.org/10.15557/JoU.2017.0030
License : (CC BY 4.0)
Received Date : 06-July-2017 / Accepted: 16-August-2017 / Published Online: 29-September-2017
The authors present a case of echocardiographic diagnosis of supravalvar mitral ring (a fibromembranous structure that arose from the atrial surface of the mitral leaflets) in a child with a parachute mitral valve, a ventricular septal defect, and mild narrowing of the aortic isthmus. The supravalvar mitral stenosis is a typical but very infrequently detected element of the complex of anatomical abnormalities located within the left heart and the proximal aorta, called the Shone’s complex (syndrome). Diagnosing an additional, hemodynamically significant anatomic defect during echocardiography was possible thanks to the detection of marked mobility limitation of the ring-adjacent part of the mitral valve mural leaflet as well as of an atypical image of turbulence occurring during the inflow from the left atrium to the left ventricle. The early diagnosis made it possible to perform complete correction of this complex congenital defect within a single operation.
Collison SP, Kaushal SK, Dagar KS, Iyer PU, Girotra S, Radhakrishnan S et al.: Supramitral ring: good prognosis in a subset of patients with congenital mitral stenosis. Ann Thorac Surg 2006; 81: 997–1001.
Mychaskiw G 2nd, Sachdev V, Braden DA, Heath BJ: Supramitral ring: an unusual cause of congenital mitral stenosis. Case series and review. J Cardiovasc Surg (Torino) 2002; 43: 199–202.
Del Nido PJ, Baird C: Congenital mitral valve stenosis: anatomic variants and surgical reconstruction. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2012; 15: 69–74
Hertwig C, Haas NA, Habash S, Hanslik A, Kececioglu D, Sandica E et al.: The „Polar Light Sign” is a useful tool to detect discrete membranous supravalvular mitral stenosis. Cardiol Young 2015; 25: 328–332.
Toscano A, Pasquini L, Iacobelli R, Di Donato RM, Raimondi F, Carotti A et al.: Congenital supravalvar mitral ring: an understimated anomaly. J Thorac Cardiovasc Surg 2009; 137: 538–542.
Moraes F, Lapa C, Ventura C, Santana R, Tenorio E, Gomes C et al.: Supravalvular congenital mitral stenosis. Arq Bras Cardiol 2002; 79: 82–84.
Pawelec-Wojtalik M, Iorio FS, Anwar AM, El Midany AA: Importance of accurate diagnosis using real-time three-dimensional echocardiography in the surgical treatment of congenital intramitral ring in infants. Interact Cardiovasc Thorac Surg 2011; 13; 669–671.
Yildirim O, Ozyuksel H A, Avsar M, Yerebakan C, Zeybek C, Demiroluk S: Mid-term results of congenital supravalvar mitral ring resection. J Card Surg 2015; 30: 591–594.