Related Experiment Video
Updated: May 23, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
No association between chronic cerebrospinal venous insufficiency and pediatric-onset multiple sclerosis
Insights
This study found no significant difference in chronic cerebrospinal venous insufficiency (CCSVI) between pediatric-onset multiple sclerosis (MS) patients and healthy controls. These findings do not support CCSVI as a cause of MS.
Area of Science:
- Neurology
- Vascular Medicine
- Pediatric Neurology
Background:
- Chronic cerebrospinal venous insufficiency (CCSVI) has been proposed as a potential cause of multiple sclerosis (MS).
- Pediatric-onset MS (POMS) offers a unique opportunity to investigate risk factors near disease onset.
- Understanding the role of CCSVI in POMS is crucial for disease etiology research.
Purpose of the Study:
- To investigate the prevalence of CCSVI in patients with pediatric-onset MS (POMS).
- To compare CCSVI rates between POMS patients and healthy controls.
- To explore the association between CCSVI and clinical features in POMS.
Main Methods:
- Ultrasound assessment of internal jugular, vertebral, and intracranial veins was performed.
- 15 POMS patients and 16 healthy controls were included in the study.
- CCSVI was diagnosed based on predefined criteria, with assessors blinded to subject status.
Main Results:
- The frequency of CCSVI was similar in both the POMS group and the control group (p > 0.05).
- No significant differences in clinical characteristics were observed between CCSVI-positive and CCSVI-negative patients.
- The study did not find a correlation between CCSVI and the presence or clinical features of POMS.
Conclusions:
- The findings suggest that CCSVI is not a causative factor in pediatric-onset multiple sclerosis.
- This study adds to the body of evidence questioning the role of CCSVI in the pathogenesis of MS.
- Further research is needed to fully elucidate the factors contributing to MS development.
Objective:
Chronic cerebrospinal venous insufficiency (CCSVI) was hypothesized to play a causative role in multiple sclerosis (MS). The assessment of pediatric-onset MS (POMS) may provide a unique window of opportunity to study hypothesized risk factors in close temporal association with the onset of the disease.
Methods:
Internal jugular veins, vertebral veins and intracranial veins were evaluated with extracranial and intracranial ultrasound in 15 POMS and 16 healthy controls. Assessor's blinding was maintained during the study. We considered subjects positive to CCSVI when at least two criteria were fulfilled.
Results:
CCSVI frequency was comparable between POMS and controls (p > 0.05). Clinical features were not significantly different between CCSVI-positive and CCSVI-negative patients.
Conclusions:
Our findings add to previous data pointing against a causative role of CCSVI in MS.
Related Concept Videos
Multiple Sclerosis l: Introduction
Cerebral Edema ll: Pathophysiology
Secondary Spinal Cord Injury llI: Pathophysiology
Increased Intracranial Pressure ll: Pathophysiology