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Anatomic classification of the right aortic arch

Published online by Cambridge University Press:  28 October 2020

Sudesh Prabhu*
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Siddhant Mehra
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Srikanth Kasturi
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Rishi Tiwari
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Abhijit Joshi
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Colin John
Affiliation:
Department of Paediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
Tom R. Karl
Affiliation:
European Journal of Cardio-Thoracic Surgery, Windsor, UK
*
Author for correspondence: S. Prabhu, Consultant Paediatric Cardiac Surgeon, Narayana Institute of Cardiac Sciences, 258/A Hosur Road, Bommasandra Industrial Area, Anekal Taluk, Bengaluru 560099, Karnataka, India. Tel: +91 9886899450. E-mail: sudesh006@gmail.com

Abstract

The term right aortic arch is used for an aorta that arches over the right bronchus. Right aortic arch was classified into two types by Felson et al, based on branching patterns, with a proposed embryological explanation, and into three types by Shuford et al. Other anatomical variants of right aortic arch were described later, including isolated left brachiocephalic artery and aberrant left brachiocephalic artery. We have classified right aortic arch anatomy into 10 variants, supported by radiological evidence, and with reference to possible embryology. This classification will help in understanding the morphological basis for the formation of different types of right aortic arch and the course of the recurrent laryngeal nerve in such cases.

Type
Original Article
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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