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Amir-Reza Hosseinpour
Timothy J. Jones
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William J. Brawn
Robert H. Anderson
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Eur J Cardiothorac Surg 2007;31:888-893. doi:10.1016/j.ejcts.2007.01.043
Copyright © 2007, European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved

Review

An appreciation of the structural variability in the components of the ventricular outlets in congenitally malformed hearts

Amir-Reza Hosseinpoura,*, Timothy J. Jonesa, David J. Barrona, William J. Brawna, Robert H. Andersonb

a Department of Cardiac Surgery, Birmingham Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK
b Department of Cardiac Morphology, Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK

Received 21 November 2006; received in revised form 10 January 2007; accepted 15 January 2007.

* Corresponding author. Address: Servicio de Cirugia Cardiovascular, Hospital Universitario Virgen del Rocio, Avenida Manuel Siurot, Sevilla 41013, Spain. Tel.: +34 95 5012895; fax: +34 95 5012704. (Email: reza{at}hosseinpour.net).

The morphology of the outlet septum, the ventriculo-infundibular fold, the infundibulum and the septomarginal trabeculation has been well described. These structures are closely interrelated, such that variations in the morphology and orientation of any one of them inevitably affect the morphology and orientation of the others. In this review, we seek to clarify how these normal relationships change within the setting of congenitally malformed hearts. This is of immense surgical significance, since the surgical correction of many congenital cardiac malformations involves procedures on, or in the vicinity of, these structures. We provide an insight into how the appearance of the components of the ventricular outlets can vary with the underlying pathology. We first define the relevant structures and describe how their location can vary in different malformations. We will then describe how the variations in that interrelationship may result in malalignment and deviation of the outlet septum, emphasising the surgical implications of these specific features.

Key Words: Outlet septum • Ventriculo-infundibular fold • Infundibulum • Septomarginal trabeculation • Septal band • Crista supraventricularis






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Copyright © 2007 European Association for Cardio-Thoracic Surgery. Published by Elsevier. All rights reserved.