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Yang J, Zhang N, Ding C, He X, Li M, Meng W, Ouyang T. Association between chronic cerebrospinal venous insufficiency and multiple sclerosis: a systematic review and meta-analysis. BMJ Open 2023; 13:e072319. [PMID: 37380203 PMCID: PMC10410874 DOI: 10.1136/bmjopen-2023-072319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/18/2023] [Indexed: 06/30/2023] Open
Abstract
OBJECTIVES Numerous studies have indicated that chronic cerebrospinal venous insufficiency is a potential factor in causing multiple sclerosis in recent years, but this conclusion remains unconfirmed. This meta-analysis examined the correlation between multiple sclerosis and chronic cerebrospinal venous insufficiency. METHODS We searched Embase and Medline (Ovid) for publications published from 1 January 2006 to 1 May 2022. The meta-analysis was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. RESULTS Eligible studies (n=20) included 3069 participants from seven countries. Pooled analysis indicated that chronic cerebrospinal venous insufficiency was more frequent in patients with multiple sclerosis than in healthy controls (OR 3.36; 95% CI 1.92 to 5.85; p<0.001) with remarkable heterogeneity among studies (I2=79%). Results were more strongly correlated in subsequent sensitivity analyses, but heterogeneity was also more substantial. We removed studies that initially proposed a chronic cerebrospinal venous insufficiency team as well as studies by authors involved in or advocating endovascular therapies. CONCLUSIONS Chronic cerebrospinal venous insufficiency is significantly associated with multiple sclerosis and it is more prevalent in patients with multiple sclerosis than in healthy individuals, but considerable heterogeneity of results is still observed.
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Affiliation(s)
- Jun Yang
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Na Zhang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Cong Ding
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiuying He
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Meihua Li
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Wei Meng
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Taohui Ouyang
- Department of Neurosurgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Laukontaus SJ, Pekkola J, Numminen J, Kagayama T, Lepäntalo M, Färkkilä M, Atula S, Tienari P, Venermo M. Magnetic Resonance Imaging of Internal Jugular Veins in Multiple Sclerosis: Interobserver Agreement and Comparison with Doppler Ultrasound Examination. Ann Vasc Surg 2017; 42:84-92. [DOI: 10.1016/j.avsg.2016.10.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/15/2016] [Accepted: 10/09/2016] [Indexed: 10/20/2022]
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3
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Lee CJ. Chronic Cerebrospinal Venous Insufficiency: A Failed Concept. Vasc Specialist Int 2016; 31:135-7. [PMID: 26719841 PMCID: PMC4694186 DOI: 10.5758/vsi.2015.31.4.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 11/17/2015] [Indexed: 11/20/2022] Open
Affiliation(s)
- Cheong Jun Lee
- Division of Vascular Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
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4
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No Association of Chronic Cerebrospinal Venous Insufficiency with Multiple Sclerosis. Can J Neurol Sci 2015; 43:195-7. [PMID: 26194114 DOI: 10.1017/cjn.2015.245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Kuchling J, Sinnecker T, Bozin I, Dörr J, Madai VI, Sobesky J, Niendorf T, Paul F, Wuerfel J. [Ultrahigh field MRI in context of neurological diseases]. DER NERVENARZT 2014; 85:445-58. [PMID: 24549692 DOI: 10.1007/s00115-013-3967-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ultrahigh field magnetic resonance imaging (UHF-MRI) has recently gained substantial scientific interest. At field strengths of 7 Tesla (T) and higher UHF-MRI provides unprecedented spatial resolution due to an increased signal-to-noise ratio (SNR). The UHF-MRI method has been successfully applied in various neurological disorders. In neuroinflammatory diseases UHF-MRI has already provided a detailed insight into individual pathological disease processes and elucidated differential diagnoses of several disease entities, e.g. multiple sclerosis (MS), neuromyelitis optica (NMO) and Susac's syndrome. The excellent depiction of normal blood vessels, vessel abnormalities and infarct morphology by UHF-MRI can be utilized in vascular diseases. Detailed imaging of the hippocampus in Alzheimer's disease and the substantia nigra in Parkinson's disease as well as sensitivity to iron depositions could be valuable in neurodegenerative diseases. Current UHF-MRI studies still suffer from small sample sizes, selection bias or propensity to image artefacts. In addition, the increasing clinical relevance of 3T-MRI has not been sufficiently appreciated in previous studies. Although UHF-MRI is only available at a small number of medical research centers it could provide a high-end diagnostic tool for healthcare optimization in the foreseeable future. The potential of UHF-MRI still has to be carefully validated by profound prospective research to define its place in future medicine.
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Affiliation(s)
- J Kuchling
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Campus Mitte, Charitéplatz 1, 10117, Berlin, Deutschland
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Molinari F, Simonetti V, Franzini M, Pandolfi S, Vaiano F, Valdenassi L, Liboni W. Ozone autohemotherapy induces long-term cerebral metabolic changes in multiple sclerosis patients. Int J Immunopathol Pharmacol 2014; 27:379-89. [PMID: 25280029 DOI: 10.1177/039463201402700308] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ozone autohemotherapy is an emerging therapeutic technique that is gaining increasing importance in treating neurological disorders. A validated and standard methodology to assess the effect of such therapy on brain metabolism and circulation is however still lacking. We used a near-infrared spectroscopy (NIRS) system to monitor the cerebral metabolism and a transcranial Doppler (TCD) to monitor the blood flow velocity in the middle cerebral arteries. Fifty-four subjects (32 neurological patients and 22 controls) were tested before, during, and after ozone autohemotherapy. We monitored the concentration changes in the level of oxygenated and deoxygenated haemoglobin, and in the level of the Cytochrome-c-oxidase (CYT-c). As a primary endpoint of the work, we showed the changes in the brain metabolism and circulation of the entire population. The concentration of oxygenated haemoglobin increased after the reinjection of the ozoned blood and remained higher than the beginning for another 1.5 hours. The concentration of the deoxygenated haemoglobin decreased during the therapy and the CYT-c concentration markedly increased about 1 hour after the reinjection. No significant changes were observed on the blood flow velocity. As secondary endpoint, we compared the NIRS metabolic pattern of 20 remitting-relapsing multiple sclerosis (MS) patients against 20 controls. We showed that by using only 7 NIRS variables it was possible to characterize the metabolic brain pattern of the two groups of subjects. The MS subjects showed a marked increase of the CYT-c activity and concentration about 40 minutes after the end of the autohemotherapy, possibly revealing a reduction of the chronic oxidative stress level typical of MS sufferers. From a technical point of view, this preliminary study showed that NIRS could be useful to show the effects of ozone autohemotherapy at cerebral level, in a long-term monitoring. The clinical result of this study is the quantitative measurement of the CYT-c level changes in MS induced by ozone autohemotherapy.
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Affiliation(s)
- F Molinari
- Biolab, Department of Electronics and Telecommunications, Politecnico di Torino, Torino, Italy
| | | | - M Franzini
- Italian Society for Oxygen and Ozone Therapy, Bergamo, Italy
| | - S Pandolfi
- Italian Society for Oxygen and Ozone Therapy, Bergamo, Italy
| | - F Vaiano
- Italian Society for Oxygen and Ozone Therapy, Bergamo, Italy
| | - L Valdenassi
- Italian Society for Oxygen and Ozone Therapy, Bergamo, Italy
| | - W Liboni
- "Un passo insieme" ONLUS Foundation, Torino, Italy
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7
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Snyder J, Adams K, Crooks VA, Whitehurst D, Vallee J. "I knew what was going to happen if I did nothing and so I was going to do something": faith, hope, and trust in the decisions of Canadians with multiple sclerosis to seek unproven interventions abroad. BMC Health Serv Res 2014; 14:445. [PMID: 25265935 PMCID: PMC4263058 DOI: 10.1186/1472-6963-14-445] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 09/23/2014] [Indexed: 11/23/2022] Open
Abstract
Background Chronic cerebrospinal venous insufficiency (CCSVI) treatment is an unproven intervention aimed at relieving some of the symptoms of multiple sclerosis (MS). Despite limited evidence of the efficacy and safety of this intervention, Canadians diagnosed with MS have been traveling abroad to access this procedure as it is not available domestically outside of limited clinical trials. This paper discusses the experiences of Canadians with MS seeking CCSVI treatment abroad. Methods This paper presents a secondary analysis of 15 interviews with participants who had gone abroad for CCSVI treatment. Interviews were conducted over the phone between October 2012 and December 2012. All interviews were digitally recorded and transcribed verbatim. Transcripts were hand coded for: 1) why CCSVI treatment was sought and where it was obtained; 2) the role of having hope for a cure in seeking CCSVI; 3) the impact of MS on everyday life; and 4) the role other people played in the decision to go abroad. Results The authors identified loss of faith, hope, and trust as themes emerging from the transcripts. The participants experienced a loss of faith with the Canadian health system and especially the neurologists who were responsible for their care and the classification of MS as a neurological disease. Access to CCSVI treatment abroad generated hope in these participants, but they were cautious in their expectations, focusing on symptom management rather than a cure. Trust in their caregivers abroad was generated through the recommendations of other MS sufferers and the credentials of their caregivers abroad. Conclusions By deciding to seek an unproven intervention abroad, these individuals took on responsibility for their care from the Canadian health system. While evidence of the efficacy of CCSVI treatment is limited, the participants felt that they were making a rational care decision, focusing on the empowerment and renewed hope generated by seeking this intervention. Health professionals and policy makers globally should consider the causes of loss of faith in their domestic care systems and balance the benefits of empowerment and renewed hope against concerns that unproven interventions may create new health risks.
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Affiliation(s)
- Jeremy Snyder
- Faculty of Health Sciences, Simon Fraser University, 8888 University Dr, Burnaby, BC, Canada.
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8
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Jandaghi AB, Amanian D, Roudbari SA, Kanafi AR, Pourghorban R. Evaluation of hemodynamic properties of cerebral venous drainage in patients with multiple sclerosis: a case-control study. Pol J Radiol 2014; 79:323-7. [PMID: 25250100 PMCID: PMC4170839 DOI: 10.12659/pjr.890690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Accepted: 04/08/2014] [Indexed: 11/09/2022] Open
Abstract
Background The purpose of this study was to compare patients with multiple sclerosis and healthy control subjects as regards hemodynamics of cerebral venous drainage. Material/Methods Between December 2012 and May 2013, 44 consecutive patients with multiple sclerosis and 44 age- and sex-matched healthy subjects underwent the B-mode, color Doppler, and duplex Doppler evaluations of the internal jugular vein (IJV) and vertebral vein. The following four parameters were investigated: IJV stenosis, reversal of postural control of the cerebral venous outflow pathways, absence of detectable blood flow in the IJVs and/or vertebral veins, and reflux in the IJVs and/or vertebral veins in the sitting or supine position. Results In the study group, IJV stenosis, postural control reversal of the cerebral venous outflow pathways, and absence of flow in the IJVs and/or vertebral veins were found in 3 (6.8%), 2 (4.5%), and 3 (6.8%) patients, respectively. In the control group, IJV stenosis (P=0.12), postural control reversal of the cerebral venous outflow pathways (P=0.50), and absence of flow (P=0.12) were not detected. Abnormal reflux was found neither in multiple sclerosis patients nor in healthy subjects. Conclusions No significant difference in the cerebral venous drainage through the IJV or vertebral vein was found between patients with multiple sclerosis and healthy subjects within any of the investigated ultrasonographic parameters.
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Affiliation(s)
- Ali Babaei Jandaghi
- Department of Radiology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran ; Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Dayan Amanian
- Department of Radiology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | - Seyed Ali Roudbari
- Department of Radiology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Ramin Pourghorban
- Department of Radiology, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Leone MA, Raymkulova O, Lochner P, Bolamperti L, Rivadossi G, Stecco A, Zaccala G, Maggio M, Liboni W, Guido M, Coppo L, Imperiale D. Chronic cerebrospinal venous insufficiency is not associated with chronic venous disorders: A case-control study. Phlebology 2014; 30:736-8. [PMID: 25081746 DOI: 10.1177/0268355514544782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To evaluate the relationship between chronic cerebrospinal venous insufficiency (CCSVI) and the presence of a Chronic Venous Disorder (CVD). METHOD We included 55 subjects with CCSVI aged >18 years, and 186 controls without CCSVI. Each subject was evaluated with color Doppler sonography in accordance with Zamboni's five criteria, examined by two neurologists and interviewed with an ad-hoc designed form. The neurologists and the sonographers were mutually blinded. CVD were classified according to CEAP. RESULTS Mean age was 42 years (SD = 9) in cases and 43 years (10) in controls (p = ns). The odds ratios in subjects CCSVI were 0.6 (0.2-2.2) for CEAP 1, 0.9 (0.2-4.5) for CEAP 2, and 1.0 (0.6-1.9) for family history of varicose veins. The prevalence of CVD and, family history of varicose veins, was similar between cases and controls for each Zamboni criterion. CONCLUSIONS We found no association of CCSVI with the presence of CVD or family history of varicose veins.
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Affiliation(s)
- Maurizio A Leone
- SCDU Neurologia, Head and Neck Department, AOU "Maggiore della Carità", Novara, Italy Interdisciplinary Research Center of Autoimmune Diseases, IRCAD, Novara, Italy
| | - Olga Raymkulova
- SCDU Neurologia, Head and Neck Department, AOU "Maggiore della Carità", Novara, Italy
| | | | - Laura Bolamperti
- SCDU Neurologia, Head and Neck Department, AOU "Maggiore della Carità", Novara, Italy
| | | | - Alessandro Stecco
- Istituto di Radiologia Diagnostica e Interventistica, AOU "Maggiore della Carità", Novara, Italy
| | - Giuseppe Zaccala
- Department of Medicine, AOU "Maggiore della Carità", Novara, Italy
| | | | | | | | - Lorenzo Coppo
- SCDU Neurologia, Head and Neck Department, AOU "Maggiore della Carità", Novara, Italy
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Jedynak W, Cieszanowski A. Is there any relation between chronic cerebrospinal venous insufficiency and multiple sclerosis? - a critical review. Pol J Radiol 2014; 79:131-6. [PMID: 24917892 PMCID: PMC4049975 DOI: 10.12659/pjr.890379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 02/03/2014] [Indexed: 11/17/2022] Open
Abstract
Summary Though the etiology of multiple sclerosis remains unknown, the widely accepted explanation is that it has an autoimmune inflammatory background. In 2006 Paolo Zamboni renewed the somewhat forgotten vascular theory of the pathogenesis of multiple sclerosis, proposing the new entity of 'chronic cerebrospinal venous insufficiency'. As a result of this hypothesis, Zamboni suggested an endovascular treatment for multiple sclerosis involving venoplasty of the internal jugular vein and the azygos vein. Unfortunately, several teams have tried to replicate Zamboni's results without success. In this review, we present a chronological description of the results of the studies conducted by Zamboni and the later attempts to replicate his work. The main conclusion is that, taking into account results that are currently available, we should remain cautious and routine use of this treatment in patients should not be advisable.
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Affiliation(s)
- Waldemar Jedynak
- Department of Diagnostic Imaging, Hospital of the West, Jan Paul II, Grodzisk Mazowiecki, Poland
| | - Andrzej Cieszanowski
- 2 Department of Radiology, Laboratory of Magnetic Resonance, Medical University of Warsaw, Warsaw, Poland
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11
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What is the relationship between chronic cerebrospinal venous insufficiency and multiple sclerosis? ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.rvm.2013.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Leone MA, Raymkulova O, Lucenti A, Stecco A, Bolamperti L, Coppo L, Liboni W, Rivadossi G, Zaccala G, Maggio M, Melis F, Giaccone C, Carriero A, Lochner P. A reliability study of colour-Doppler sonography for the diagnosis of chronic cerebrospinal venous insufficiency shows low inter-rater agreement. BMJ Open 2013; 3:e003508. [PMID: 24240139 PMCID: PMC3831103 DOI: 10.1136/bmjopen-2013-003508] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Chronic cerebrospinal venous insufficiency (CCSVI) has been extremely variable, associated with multiple sclerosis in colour-Doppler sonographic studies. We aimed to evaluate inter-rater agreement in a colour-Doppler sonography venous examination. DESIGN Inter-rater agreement study. SETTING First-referral multiple sclerosis centre. PARTICIPANTS 38 patients with multiple sclerosis and 55 age-matched (±5 years) controls. INTERVENTION Sonography was carried out in accordance with Zamboni's five criteria by eight sonographers with different expertise, blinded to the status of cases and controls. Each participant was evaluated by two operators. PRIMARY AND SECONDARY OUTCOME MEASURES Inter-rater agreement was measured through the κ statistics and the intraclass correlation coefficient. RESULTS The agreement was no higher than chance for criterion 2-reflux in the deep cerebral veins (κ=-0.02) and criterion 4-flow not Doppler detectable in one or both the internal jugular veins (IJVs) or vertebral veins (VVs; -0.09). It was substantially low for criterion 1-reflux in the IJVs and/or VVs (0.29), criterion 3-IJV stenosis or malformations (0.23) and criterion 5-absence of IJV diameter increase when passing from the sitting to the supine position (0.22). The κ value for CCSVI as a whole was 0.20 (95% confidence limit -0.01 to 0.42). Intraclass correlation coefficients for the measure of cross-sectional area ranged from 0.05 to 0.25. Inter-rater agreement was low for CCSVI experts (κ=0.24; -0.11 to 0.59) and non-experts (0.20; -0.33 to 0.73); neurologists (0.21; -0.06 to 0.47) and non-neurologists (0.18; -0.20 to 0.56); cases (0.19; -0.14 to 0.52) and controls (0.21; -0.08 to 0.49). Zamboni-trained neurosonographers ascertained CCSVI more frequently than the non-trained neurosonographers. CONCLUSIONS Agreement was unsatisfactory for the diagnosis of CCSVI as a whole, for each of its five criteria and according to the different subgroups. Standardisation of the method is urgently needed prior to its further application in studies of patients with multiple sclerosis or other neurological diseases.
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Affiliation(s)
- Maurizio A Leone
- MS Centre, SCDU Neurology, Head and Neck Department, AOU ‘Maggiore della Carità’, Novara, Italy
- IRCAD, Interdisciplinary Research Centre of Autoimmune Diseases, Novara, Italy
| | - Olga Raymkulova
- MS Centre, SCDU Neurology, Head and Neck Department, AOU ‘Maggiore della Carità’, Novara, Italy
| | - Ausiliatrice Lucenti
- MS Centre, SCDU Neurology, Head and Neck Department, AOU ‘Maggiore della Carità’, Novara, Italy
| | - Alessandro Stecco
- Institute of Diagnostic and Interventional Radiology, AOU ‘Maggiore della Carità’, Novara, Italy
| | - Laura Bolamperti
- MS Centre, SCDU Neurology, Head and Neck Department, AOU ‘Maggiore della Carità’, Novara, Italy
| | - Lorenzo Coppo
- MS Centre, SCDU Neurology, Head and Neck Department, AOU ‘Maggiore della Carità’, Novara, Italy
| | | | | | - Giuseppe Zaccala
- Department of Medicine, AOU ‘Maggiore della Carità’, Novara, Italy
| | | | - Fabio Melis
- SC Neurology, Maria Vittoria Hospital, Torino, Italy
| | | | - Alessandro Carriero
- Institute of Diagnostic and Interventional Radiology, AOU ‘Maggiore della Carità’, Novara, Italy
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Comi G, Battaglia MA, Bertolotto A, Del Sette M, Ghezzi A, Malferrari G, Salvetti M, Sormani MP, Tesio L, Stolz E, Zaratin P, Mancardi G. Observational case-control study of the prevalence of chronic cerebrospinal venous insufficiency in multiple sclerosis: results from the CoSMo study. Mult Scler 2013; 19:1508-17. [PMID: 24014572 DOI: 10.1177/1352458513501231] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Chronic cerebrospinal venous insufficiency (CCSVI) has been proposed as a possible cause of multiple sclerosis (MS). OBJECTIVES The CoSMo study evaluated the association between CCSVI and MS. METHODS The primary end-point of this multicentric, case-control study was to compare the prevalence of CCSVI between patients with MS, patients with other neurodegenerative diseases (ONDs) and healthy controls (HCs). Color-coded duplex sonography was performed by a sonologist and the images were sent to one of three central sonologists for a second reading. Agreement between local and central sonologists or, in case of disagreement, the predominant judgment among the three central readers, was required for a diagnosis of CCSVI. All readings, data collection and analysis were blinded. RESULTS The study involved 35 MS centers across Italy and included 1874 subjects aged 18-55. 1767 (94%) were evaluable: 1165 MS patients, 226 patients with ONDs and 376 HCs. CCSVI prevalence was 3.26%, 3.10% and 2.13% for the MS, OND and HC groups, respectively. No significant difference in CCSVI prevalence was found amongst the three cohorts (MS versus HC, OR = 1.55, 95%CI = 0.72-3.36, p = 0.30; OND versus HC, OR = 1.47, 95%CI = 0.53-4.11, p = 0.46; MS versus OND, OR = 1.05, 95%CI = 0.47-2.39, p = 0.99). High negative and low positive agreement was found between the local and centralized readers. CONCLUSIONS CCSVI is not associated with MS.
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Affiliation(s)
- G Comi
- Department of Neurology, Università Vita Salute San Raffaele, Milan, Italy
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Zwischenberger BA, Beasley MM, Davenport DL, Xenos ES. Meta-Analysis of the Correlation Between Chronic Cerebrospinal Venous Insufficiency and Multiple Sclerosis. Vasc Endovascular Surg 2013; 47:620-4. [DOI: 10.1177/1538574413503562] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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.
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Affiliation(s)
| | - Mary M. Beasley
- College of Medicine, University of Kentucky, Lexington, KY, USA
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15
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Rodger IW, Dilar D, Dwyer J, Bienenstock J, Coret A, Coret-Simon J, Foster G, Franchetto A, Franic S, Goldsmith CH, Koff D, Konyer NB, Levine M, McDonald E, Noseworthy MD, Paulseth J, Ribeiro L, Sayles MJ, Thabane L. Evidence against the involvement of chronic cerebrospinal venous abnormalities in multiple sclerosis. A case-control study. PLoS One 2013; 8:e72495. [PMID: 23967312 PMCID: PMC3743778 DOI: 10.1371/journal.pone.0072495] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 07/17/2013] [Indexed: 11/24/2022] Open
Abstract
Objective Multiple sclerosis (MS) is a chronic neurodegenerative disease of the CNS. Recently a controversial vascular hypothesis for MS, termed chronic cerebrospinal venous insufficiency (CCSVI), has been advanced. The objective of this study was to evaluate the relative prevalence of the venous abnormalities that define CCSVI. Methods A case-control study was conducted in which 100 MS patients aged between 18–65 y meeting the revised McDonald criteria were randomly selected and stratified into one of four MS subtypes: relapsing/remitting, secondary progressive, primary progressive and benign. Control subjects (16–70 y) with no known history of MS or other neurological condition were matched with the MS cases. All cases and controls underwent ultrasound imaging of the veins of the neck plus the deep cerebral veins, and magnetic resonance imaging of the neck veins and brain. These procedures were performed on each participant on the same day. Results On ultrasound we found no evidence of reflux, stenosis or blockage in the internal jugular veins (IJV) or vertebral veins (VV) in any study participant. Similarly, there was no evidence of either reflux or cessation of flow in the deep cerebral veins in any subject. Flow was detected in the IJV and VV in all study participants. Amongst 199 participants there was one MS subject who fulfilled the minimum two ultrasound criteria for CCSVI. Using MRI we found no significant differences in either the intra- or extra-cranial venous flow velocity or venous architecture between cases and controls. Conclusion This case-control study provides compelling evidence against the involvement of CCSVI in multiple sclerosis.
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Affiliation(s)
- Ian W Rodger
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
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Hagens MH, Hoogervorst EL, Frequin ST, Tromp SC. Cerebrospinal Venous Outflow in Multiple Sclerosis Patients versus Fatigue and/or Depression. INTERVENTIONAL NEUROLOGY 2013; 2:193-200. [DOI: 10.1159/000363070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
<b><i>Background:</i></b> Endovascular treatment of impaired cerebrospinal venous outflow has been suggested to improve the overall quality of life in multiple sclerosis (MS) patients. Fatigue and depression are key factors in measuring the quality of life in MS patients. <b><i>Objective:</i></b> In the present study, we investigated the correlation between anomalous venous outflow and the seriousness of fatigue and depression in MS patients and healthy controls. <b><i>Methods:</i></b> Five cerebrospinal venous outflow parameters were measured in 20 MS patients and age- and sex-matched controls using extra- and transcranial Colour Doppler sonography. All patients and volunteers filled out the Fatigue Severity Scale (FSS) and Hospital Anxiety Depression Subscale (HADS). <b><i>Results:</i></b> Nine abnormal parameters were found in 8 MS patients, whereas five abnormal parameters were found in 3 healthy controls (no significant difference). Only 1 MS patient met the criteria for chronic cerebrospinal venous insufficiency compared to 2 healthy controls. No significant differences were found in the FSS and HADS scores between patients with and without abnormal cerebrospinal venous outflow parameters. <b><i>Conclusions:</i></b> We found no significantly impaired cerebrospinal venous outflow in patients with MS versus sex- and age-matched controls. Furthermore, we did not find any correlation between anxiety or depression and impaired venous outflow in MS patients.
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