Prevalence and Pattern of Cerebral Variations during Endovascular Diagnostic Angiography in Saudi Patients: A Retrospective Observational Study
European Journal of Molecular & Clinical Medicine,
2022, Volume 9, Issue 7, Pages 4467-4479
Abstract
Background: Previous studies detected large number of variations in circle of Willis in normal populations. There is limited data for the effect and correlation of normal varieties and pathologic vascular anomaliesPurpose: Prevalence of normal variants and impact of its presence in decision making process.
Patients and methods: Ninety patients' records underwent therapeutic angiography were retrospectively reviewed and reallocated into two equal groups according to pathology (group 1=vascular malformation group, group 2= ischemic insults). Age, sex, type of pathology, site of normal variants and finally their impact on decision making process were calculated.
Results: The mean and standard deviation of age in our study was found to be (40.18 years ± 15.6), most of patients were between 30-40 years old. The total number of normal variants that were detected in our study either at extra- or intracranial vascular tree was 46 variants. Forty-nine cases were "ignored" or added no impact on the proposed plan during neurointervention. The sensitivity of normal variants in changing decision making process was seen in 15% of cases while the specificity was 100%.
DSA, normal variations, variants, aneurysm, COW
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