Rare types of aortic arch anomalies

Area of Science:

• Cardiovascular Medicine
• Embryology
• Medical Imaging

Background:

• Aortic arch malformations are congenital anomalies affecting the great vessels originating from the aortic arch.
• Rare variations include isolated subclavian arteries, aberrant innominate arteries, and ductus arteriosus sling.
• Understanding these variations is crucial for diagnosis and management.

Purpose of the Study:

• To describe the angiocardiographic features of rare aortic arch malformations.
• To discuss the embryological origins of these vascular anomalies.
• To provide a comprehensive overview of uncommon aortic arch variations.

Main Methods:

• Review of angiocardiographic findings in patients with rare aortic arch malformations.
• Analysis of embryological development related to aortic arch patterning.
• Classification and description of specific anomalies based on imaging and developmental pathways.

Main Results:

• Detailed descriptions of isolated right/left subclavian arteries with corresponding aortic arches.
• Identification of associations between right aortic arch and innominate/carotid artery anomalies.
• Characterization of persistent fifth aortic arch, aberrant subclavian artery origin, and ductus arteriosus sling.

Conclusions:

• Rare aortic arch malformations present with diverse anatomical variations.
• Angiocardiography is essential for diagnosing these congenital heart defects.
• Embryological insights aid in understanding the pathogenesis of these anomalies.