Is pharyngoplasty a risk in velocardiofacial syndrome? An assessment of medially displaced carotid arteries

Plastic and Reconstructive Surgery
D A RossH G Thomson

Abstract

The association of medially positioned internal carotid arteries and velocardiofacial (Shprintzen) syndrome was first made in 1987. This is also the most common syndrome associated with facial clefting. The potentially dangerous implications in children with this syndrome requiring pharyngoplasty for velopharyngeal incompetence and stigmatized hypernasal speech involve potential damage to these vessels. This three-part study was undertaken to analyze this anatomic variant. First, a group of 25 children with velocardiofacial syndrome, velopharyngeal incompetence, and obvious posterior pharyngeal pulsations seen on nasendoscopy was studied by CT angiography to determine the degree of this abnormal vascular pattern. This technique, together with three-dimensional reconstructions, made it possible to determine the precise location of these abnormally positioned vessels. Second, our routine superiorly based pharyngeal flap was measured by lateral cervical x-ray to show the distal tip of the flap. The variance was minimal and demonstrated the tip of most flaps to be at the disk between the C2 and C3 vertebrae. By correlating this information with the CT angiography, the risk of surgery can be determined on strict anatomic grounds, al...Continue Reading

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