Tracheoesophageal Compression Syndromes Related to Vascular Ring

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Abstract
Seventeen cases of vascular ring have been encountered at Ochsner Clinic over the past 22 years. Anatomic configurations consisted of double aortic arch in 11 cases, right aortic arch with left ligamentum arteriosum in five cases, and aberrant right subclavian artery in one case. In four cases chest x-ray films revealed air block or hyperinflation and led to further diagnostic tests. The definitive diagnostic methods included esophagogram in 15 cases, aortography in 14 cases, two-dimensional echocardiography in one case, and esophagoscopy/bronochoscopy in eight cases. Presenting symptoms were respiratory in 13 cases and feeding difficulties in three; one asymptomatic case was found incidentally. Four cases of air block syndrome were observed as an early and unusual presentation of vascular ring in infants. Hyperinflation of the lung fields on chest x-ray film should spur suspicion of a possible vascular ring. Two case reports are included to demonstrate air block in relation to vascular rings in neonates.

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