meta-analysis shows correlation between CCSVI and MS
Posted: Tue Sep 10, 2013 7:24 am
http://ves.sagepub.com/content/early/20 ... 2.abstract
Published online before print September 4, 2013, doi: 10.1177/1538574413503562
VASC ENDOVASCULAR SURG September 4, 2013 1538574413503562
Meta-Analysis of the Correlation Between Chronic Cerebrospinal Venous Insufficiency and Multiple Sclerosis
Brittany A. Zwischenberger, MD
Mary M. Beasley, BS
Daniel L. Davenport, PhD
Eleftherios S. Xenos, MD, PhD
Abstract
Purpose: To determine whether a correlation exists between chronic cerebrospinal venous insufficiency (CCSVI) and multiple sclerosis (MS). Materials and Methods: A meta-analysis of the current literature was performed to evaluate the frequency of CCSVI, diagnosed by echo color Doppler criteria, in patients with MS and in normal controls. Results: In all, 19 studies were identified from January 2005 through February 2013; however, 3 studies were excluded due to duplicate data and 3 additional studies because 0 patients fulfilled CCSVI criteria in both MS and control groups. In order to improve homogeneity, 4 outlier studies were also removed from the analysis. Analysis of the remaining 9 studies demonstrated a significant correlation between CCSVI and MS (odds ratio 1.885, P < .0001) with no significant heterogeneity of the studies (I2 = 18, P = .279). Conclusions: The meta-analysis demonstrated a correlation between CCSVI and MS. However, there was no evidence that CCSVI has a causative role in MS.