Embryological basis of coarctation in cervical aortic arch: Ductus caroticus anomaly

• Sudesh Prabhu ^[1] ; Siddhant Mehra ^[1] ; Shreesha Maiya ^[1] ; John Colin ^[1]
  1. [1] Dept of Pediatric Cardiac Surgery, Narayana Institute of Cardiac Sciences, Bengaluru, India
• Localización: European Journal of anatomy, ISSN-e 1136-4890, Vol. 24, Nº. 6, 2020, págs. 519-521
• Idioma: inglés
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• Resumen

  • Coarctation of the cervical aortic arch (CAA), though rare, is a clinical entity of embryological significance. Based on Rathke’s aortic arch dia-grams and Edward’s concept of functioning double aortic arch, we are postulating that the coarctation in a CAA occurs due to partial involution of the dor-sal aorta developed from the “ductus caroticus”. Hence coarctation in CAA should be classified as a “clinically significant aortic arch anomaly of ductus caroticus origin”. Conversely, location of coarctation in CAA substantiates the theory that embryogenesis of CAA is due to aortic arch devel-opment from the third or second branchial arch vessel, rather than the usual fourth arch vessel.