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Cerebral Venous Sinus Thrombosis and Thrombotic Events After Vector-Based COVID-19 Vaccines: A Systematic Review and Meta-analysis.
Palaiodimou, Lina; Stefanou, Maria-Ioanna; Katsanos, Aristeidis H; Aguiar de Sousa, Diana; Coutinho, Jonathan M; Lagiou, Pagona; Michopoulos, Ioannis; Naska, Androniki; Giannopoulos, Sotirios; Vadikolias, Konstantinos; Voumvourakis, Konstantinos I; Papaevangelou, Vasiliki; Vassilakopoulos, Theodoros I; Tsiodras, Sotirios; Tsivgoulis, Georgios.
  • Palaiodimou L; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Stefanou MI; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Katsanos AH; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Aguiar de Sousa D; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Coutinho JM; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Lagiou P; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Michopoulos I; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Naska A; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Giannopoulos S; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Vadikolias K; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Voumvourakis KI; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Papaevangelou V; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Vassilakopoulos TI; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Tsiodras S; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
  • Tsivgoulis G; From the Second Department of Neurology (L.P., M.-I.S., A.H.K., S.G., K.I.V., G.T.), Second Department of Psychiatry (I.M.), and Fourth Department of Internal Medicine (S.T.), "Attikon" University Hospital, Department of Hygiene, Epidemiology and Medical Statistics (P.L., A.N.), School of Medicine,
Neurology ; 97(21): e2136-e2147, 2021 11 23.
Article in English | MEDLINE | ID: covidwho-1596718
ABSTRACT
BACKGROUND AND

OBJECTIVES:

There is accumulating evidence supporting an association between the thrombosis and thrombocytopenia syndrome (TTS) and adenovirus vector-based vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Yet TTS and TTS-associated cerebral venous sinus thrombosis (CVST) remain poorly characterized. We aim to systematically evaluate the proportion of CVST among TTS cases and assess its characteristics and outcomes.

METHODS:

We performed a systematic review and meta-analysis of clinical trials, cohorts, case series, and registry-based studies with the aim to assess (1) the pooled mortality rate of CVST, TTS-associated CVST, and TTS and (2) the pooled proportion of patients with CVST among patients with any thrombotic event and TTS. Secondary outcomes comprised clinical characteristics of patients with postvaccination thrombotic event. This meta-analysis is reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and was written according to the Meta-analysis of Observational Studies in Epidemiology proposal.

RESULTS:

Sixty-nine studies were included in the qualitative analysis comprising 370 patients with CVST out of 4,182 patients with any thrombotic event associated with SARS-CoV-2 vector-based vaccine administration. Twenty-three studies were included further in quantitative meta-analysis. Among TTS cases, the pooled proportion of CVST was 51% (95% confidence interval [CI] 36%-66%; I 2 = 61%). TTS was independently associated with a higher likelihood of CVST when compared to patients without TTS with thrombotic events after vaccination (odds ratio 13.8; 95% CI 2.0-97.3; I 2 = 78%). The pooled mortality rates of TTS and TTS-associated CVST were 28% (95% CI 21%-36%) and 38% (95% CI 27%-49%), respectively. Thrombotic complications developed within 2 weeks of exposure to vector-based SARS-CoV-2 vaccines (mean interval 10 days; 95% CI 8-12) and affected predominantly women (69%; 95% CI 60%-77%) under age 45, even in the absence of prothrombotic risk factors.

DISCUSSION:

Approximately half of patients with TTS present with CVST; almost one-third of patients with TTS do not survive. Further research is required to identify independent predictors of TTS following adenovirus vector-based vaccination. REGISTRATION INFORMATION The prespecified study protocol has been registered in the International Prospective Register of Ongoing Systematic Reviews PROSPERO (CRD42021250709).
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: Sinus Thrombosis, Intracranial / Thrombocytopenia / Thrombosis / COVID-19 Vaccines / COVID-19 Type of study: Etiology study / Clinical Practice Guide / Prognostic study / Qualitative research / Reviews / Risk factors / Systematic review Topics: Vaccines Limits: Female / Humans / Middle aged Language: English Journal: Neurology Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Sinus Thrombosis, Intracranial / Thrombocytopenia / Thrombosis / COVID-19 Vaccines / COVID-19 Type of study: Etiology study / Clinical Practice Guide / Prognostic study / Qualitative research / Reviews / Risk factors / Systematic review Topics: Vaccines Limits: Female / Humans / Middle aged Language: English Journal: Neurology Year: 2021 Document Type: Article