AI Article Synopsis
- The study examined vertebral artery (VA) anomalies at the craniovertebral junction (CVJ) in patients with Down syndrome, finding a higher incidence compared to those without the condition.
- Five patients with Down syndrome undergoing surgery for atlantoaxial subluxation were assessed using 3DCT angiography, revealing that three had VA anomalies.
- The research suggests that preoperative imaging is crucial for identifying these anomalies to reduce the risk of injury during surgery.
Article Abstract
Introduction: We determined the incidence of vertebral artery (VA) anomalies at the craniovertebral junction (CVJ) in patients with Down syndrome, and characterized the VA anomalies.
Methods: The course of the VA in 46 consecutive patients who were due to undergo posterior arthrodesis surgery at the CVJ were evaluated by three-dimensional CT angiography (3DCTA). Included were five patients with Down syndrome who suffered from myelopathy due to atlantoaxial subluxation. All five patients with Down syndrome also had a simultaneous congenital skeletal anomaly, either os odontoideum or ossiculum terminale.
Results: Of the five patients with Down syndrome, three had VA anomalies at the CVJ, two had fenestration and one had a persistent first intersegmental artery. Of the other 41 patients without Down syndrome, five had VA anomalies at the CVJ. The incidence of VA anomalies at the CVJ was much higher in patients with Down syndrome than in those without Down syndrome.
Conclusion: In planning surgery in patients with Down syndrome with symptomatic atlantoaxial subluxation and a congenital skeletal anomaly at the CVJ, we should consider the possible presence of VA anomalies. Preoperative 3DCTA allows us to precisely identify an anomalous VA and evaluate the possible risk of intraoperative VA injury in advance.
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| http://dx.doi.org/10.1007/s00234-008-0368-8 | DOI Listing |
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