Stroke following appendectomy under general anesthesia in a patient with basilar impression

We report a boy who developed a vertebral stroke immediately after an appen dectomy. Basilar impression was diagnosed eight years after this event when skull roentgenograms revealed basilar impression with high standing tip of the odontoid. WE speculate that muscle relaxation and cervical hyperextens ion during intubation in the presence of basilar impression resulted in ver tebral artery dissection and stroke, We suggest that patients with vertebra l stroke and no obvious risk factors should be evaluated for the presence o f malformations of the craniovertebral junction to be able to take precauti ons against excessive neck movement during intubation.