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Original Article
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Volume 345:417-423 August 9, 2001 Number 6
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Cerebral Sinovenous Thrombosis in Children
Gabrielle deVeber, M.D., Maureen Andrew, M.D., Coleen Adams, M.B., Bruce Bjornson, M.D., Frances Booth, M.D., David J. Buckley, M.B., Ch.B., Carol S. Camfield, M.D., Michele David, M.D., Peter Humphreys, M.D., Pierre Langevin, M.D., E. Athen MacDonald, M.D., Brandon Meaney, M.D., Michael Shevell, M.D., C.M., D. Barry Sinclair, M.D., Jerome Yager, M.D., Jane Gillett, M.D., for the Canadian Pediatric Ischemic Stroke Study Group

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ABSTRACT

Background Cerebral sinovenous thrombosis in children is a serious disorder, and information is needed about its prevention and treatment.

Methods The Canadian Pediatric Ischemic Stroke Registry was initiated in 1992 at the 16 pediatric tertiary care centers in Canada. Children (newborn to 18 years of age) with symptoms and radiographic confirmation of sinovenous thrombosis were included.

Results During the first six years of the registry, 160 consecutive children with sinovenous thrombosis were enrolled, and the incidence of the disorder was 0.67 case per 100,000 children per year. Neonates were most commonly affected. Fifty-eight percent of the children had seizures, 76 percent had diffuse neurologic signs, and 42 percent had focal neurologic signs. Risk factors included head and neck disorders (in 29 percent), acute systemic illnesses (in 54 percent), chronic systemic diseases (in 36 percent), and prothrombotic states (in 41 percent). Venous infarcts occurred in 41 percent of the children. Fifty-three percent of the children received antithrombotic agents. Neurologic deficits were present in 38 percent of the children, and 8 percent died; half the deaths were due to sinovenous thrombosis. Predictors of adverse neurologic outcomes were seizures at presentation and venous infarcts.

Conclusions Sinovenous thrombosis in children affects primarily neonates and results in neurologic impairment or death in approximately half the cases. The occurrence of venous infarcts or seizures portends a poor outcome.


Source Information

From the Divisions of Neurology (G.D.) and Hematology–Oncology (M.A.), the Population Health Sciences Program, Hospital for Sick Children, Toronto; the Department of Pediatrics, University of Toronto, Toronto (G.D., M.A.); the Department of Pediatrics, University of Calgary, Calgary, Alta. (C.A.); the Department of Pediatrics, University of British Columbia, Vancouver (B.B.); the Department of Pediatrics, University of Manitoba, Winnipeg (F.B.); the Department of Pediatrics, Memorial University, St. John's, Nfld. (D.J.B.); the Department of Pediatrics, Dalhousie University, Halifax, N.S. (C.S.C.); the Department of Hematology–Oncology, Université de Montreal, Montreal (M.D.); the Department of Pediatrics, University of Ottawa, Ottawa, Ont. (P.H.); the Department of Pediatric Neurology, Centre Hospitalier de l'Université Laval, Sainte-Foy, Quebec, Que. (P.L.); the Department of Pediatrics, Queen's University, Kingston, Ont. (E.A.M.); and the Departments of Pediatrics and Clinical Neurosciences, University of Western Ontario, London (J.G.) — all in Canada.

Other authors were Brandon Meaney, M.D. (Department of Pediatrics, McMaster University, Hamilton, Ont.), Michael Shevell, M.D., C.M. (Department of Neurology, Pediatrics, and Neurosurgery, McGill University, Montreal), D. Barry Sinclair, M.D. (Department of Pediatrics, University of Alberta, Edmonton), and Jerome Yager, M.D. (Department of Pediatrics, University of Saskatchewan, Saskatoon).

Address reprint requests to Dr. deVeber at the Division of Neurology, Hospital for Sick Children, 555 University Ave., Toronto, ON M5G 1X8, Canada.

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