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Cleft mitral valve in transposition with intact ventricular septum

  • Samuel Menahem (a1) and Robert H. Anderson (a2)
Abstract

We describe two cases of an isolated cleft of the mitral valve in transposition with intact ventricular septum. The cleft is positioned leftward in the pulmonary leaflet, at about 2 o’clock, when viewed from below looking at the cardiac short axis with the right ventricle to one’s left hand. Such clefts, when seen in the Taussig-Bing malformation are also positioned leftward.

In keeping with our current knowledge of cardiac development, our cases provide further evidence that transposition with an intact ventricular septum is the end-point of the Taussig-Bing spectrum.

Copyright
Corresponding author
Correspondence to: Samuel Menahem, Murdoch Children’s Research Institute, Monash University Heart and Chest Research Institute, Royal Children’s Hospital, Flemington Road, Parkville, Vic 3052, Australia. Tel: +61 3 9345 5712; Fax: +61 3 9345 6001; E-mail: sam.menahem@rch.org.au
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References

Smallhorn JF, Tommasini G, Anderson RH, Macartney FJ. Assessment of atrioventricular septal defects by 2 dimensional echocardiography. Br Heart J 1982; 47: 100121.
Sigfusson G, Ettedgni JA, Silverman NH, Anderson RH. Is a cleft in the anterior leaflet of an otherwise normal mitral valve an atrioventricular canal malformation? J Am Coll Cardiol 1995; 26: 508515.
Di Segni E, Bass JL, Lucas RV, Einzig S. Isolated cleft mitralvalve: a variety of congenital mitral regurgitation identified by two dimensional echocardiography. Am J Cardiol 1983; 51: 927931.
Smallhorn JF, de Leval M, Stark J, Sommerville J, Taylor JF, Anderson RH, Macartney FJ. Isolated mitral cleft: two dimensional echocardiographic assessment and differentiation from “clefts” associated with atrioventricular septal defects. Br Heart J 1982; 48: 108116.
Tamura M, Menahem S, Brizard C. Clinical features and management of isolated cleft mitral valve in childhood. J Am Coll Cardiol 2000; 35: 764770.
Soto B, Ceballos R, Nath PH, Bine RM, Pacifico AD, Begeron LM. Overriding AV valves, an angiographic–anatomic correlate. Int J Cardiol 1985; 9: 327339.
Stellin G, Zuberbuhler JR, Anderson RH, Siewers RD. The surgical anatomy of the Taussig-Bing malformation. J Thorac Cardiovasc Surg 1987; 93: 560569.
Smith A, Wilkinson JL, Anderson RH, Arnold R, Dickinson DF. Architecture of the ventricular mass and atrioventricular valves in complete transposition with intact ventricular septum compared with the normal 1: the Left ventricle, mitral valve and interventricular septum. Pediatr Cardiol 1986; 6: 253257.
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Cardiology in the Young
  • ISSN: 1047-9511
  • EISSN: 1467-1107
  • URL: /core/journals/cardiology-in-the-young
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