Chronic cerebrospinal vascular insufficiency is not associated with HLA DRB1*1501 status in multiple sclerosis patients.
BackgroundChronic cerebrospinal venous insufficiency (CCSVI) was described as a vascular condition characterized by anomalies of veins outside the skull was reported to be associated with multiple sclerosis (MS).The objective was to assess the associations between HLA DRB1*1501 status and the occurrence of CCSVI in MS patients.Methodology/principal