title: Neurologic complications of cerebral angiography in childhood moyamoya syndrome.
abstract: Purpose. To determine the incidence of neurologic complications of cerebral angiography in children with moyamoya syndrome (MMS) as compared to children without MMS. Materials and methods. One-hundred-ninety consecutive cerebral angiograms obtained in 152 children were evaluated. Sixty of these angiograms were obtained in 40 children with MMS. Patients underwent neurologic evaluation prior to and after the procedure. For this study, a neurologic complication was defined as any new focal neurologic deficit or alteration in mental status occurring during the procedure or within the ensuing 24 hours. Results. There were 2 neurologic complications within 24 hours of angiography, one in the MMS group and one in the non-MMS group. One patient with MMS became mute following angiography. The symptom resolved within 12 hours. One patient without MMS being examined postoperatively for residual arteriovenous malformation developed intracranial hemorrhage requiring reexploration 12 hours after the angiogram. Using a two-tail Fisher's exact test, there was no significant statistical difference in the ischemic (P = 0.3) or hemorrhagic (P = 1.0) complication rates between the group of patients with MMS and the non-MMS groups. Conclusion. The risk of a neurologic complication from cerebral angiography in children with MMS is low and not statistically different from the risk in children with other cerebrovascular disorders.
authors.affiliation: Department of Radiology, Children's Hospital Medical Center and Harvard Medical School, 300 Longwood Ave., Boston, MA 02115 USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Robertson
authors.forename: R V
authors.initials: RV
authors.lastname: Chavali
authors.forename: C D
authors.initials: CD
authors.lastname: Robson
authors.forename: P D
authors.initials: PD
authors.lastname: Barnes
authors.forename: E A
authors.initials: EA
authors.lastname: Eldredge
authors.forename: P E
authors.initials: PE
authors.lastname: Burrows
authors.forename: R M
authors.initials: RM
authors.lastname: Scott
mesh_terms: D000293:Adolescent; D000768:Anesthesia, General; D001927:Brain Diseases / Q000453:epidemiology / Q000209:etiology*; D002533:Cerebral Angiography / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009072:Moyamoya Disease / Q000150:complications* / Q000000981:diagnostic imaging*; D012307:Risk Factors