Heather J Fullerton1, Jorge M Luna1, Max Wintermark1, Nancy K Hills1, Rafal Tokarz1, Ying Li1, Carol Glaser1, Gabrielle A DeVeber1, W Ian Lipkin1, Mitchell S V Elkind2. 1. From the Department of Neurology (H.J.F.), Department of Pediatrics (H.J.F.), and Department of Biostatistics and Epidemiology (N.K.H.), University of California, San Francisco; Department of Epidemiology (J.M.L., R.T., W.I.L., M.S.V.E.) and Department of Neurology (M.S.V.E.), Columbia University College of Physicians and Surgeons, New York, NY; Department of Radiology, Stanford University, Palo Alto, CA (M.W., Y.L.); Department of Pediatrics (Infectious Disease), Kaiser Permanente, Oakland, CA (C.G.); and Department of Neurology, Hospital for Sick Children, Toronto, Canada (G.A.D.). 2. From the Department of Neurology (H.J.F.), Department of Pediatrics (H.J.F.), and Department of Biostatistics and Epidemiology (N.K.H.), University of California, San Francisco; Department of Epidemiology (J.M.L., R.T., W.I.L., M.S.V.E.) and Department of Neurology (M.S.V.E.), Columbia University College of Physicians and Surgeons, New York, NY; Department of Radiology, Stanford University, Palo Alto, CA (M.W., Y.L.); Department of Pediatrics (Infectious Disease), Kaiser Permanente, Oakland, CA (C.G.); and Department of Neurology, Hospital for Sick Children, Toronto, Canada (G.A.D.). mse13@columbia.edu.
Abstract
BACKGROUND AND PURPOSE: Case-control studies suggest that acute infection transiently increases the risk of childhood arterial ischemic stroke. We hypothesized that an unbiased pathogen discovery approach utilizing MassTag-polymerase chain reaction would identify pathogens in the blood of childhood arterial ischemic stroke cases. METHODS: The multicenter international VIPS study (Vascular Effects of Infection in Pediatric Stroke) enrolled arterial ischemic stroke cases, and stroke-free controls, aged 29 days through 18 years. Parental interview included questions on recent infections. In this pilot study, we used MassTag-polymerase chain reaction to test the plasma of the first 161 cases and 34 controls enrolled for a panel of 28 common bacterial and viral pathogens. RESULTS: Pathogen DNA was detected in no controls and 14 cases (8.7%): parvovirus B19 (n=10), herpesvirus 6 (n=2), adenovirus (n=1), and rhinovirus 6C (n=1). Parvovirus B19 infection was confirmed by serologies in all 10; infection was subclinical in 8. Four cases with parvovirus B19 had underlying congenital heart disease, whereas another 5 had a distinct arteriopathy involving a long-segment stenosis of the distal internal carotid and proximal middle cerebral arteries. CONCLUSIONS: Using MassTag-polymerase chain reaction, we detected parvovirus B19-a virus known to infect erythrocytes and endothelial cells-in some cases of childhood arterial ischemic stroke. This approach can generate new, testable hypotheses about childhood stroke pathogenesis.
BACKGROUND AND PURPOSE: Case-control studies suggest that acute infection transiently increases the risk of childhood arterial ischemic stroke. We hypothesized that an unbiased pathogen discovery approach utilizing MassTag-polymerase chain reaction would identify pathogens in the blood of childhood arterial ischemic stroke cases. METHODS: The multicenter international VIPS study (Vascular Effects of Infection in Pediatric Stroke) enrolled arterial ischemic stroke cases, and stroke-free controls, aged 29 days through 18 years. Parental interview included questions on recent infections. In this pilot study, we used MassTag-polymerase chain reaction to test the plasma of the first 161 cases and 34 controls enrolled for a panel of 28 common bacterial and viral pathogens. RESULTS: Pathogen DNA was detected in no controls and 14 cases (8.7%): parvovirus B19 (n=10), herpesvirus 6 (n=2), adenovirus (n=1), and rhinovirus 6C (n=1). Parvovirus B19 infection was confirmed by serologies in all 10; infection was subclinical in 8. Four cases with parvovirus B19 had underlying congenital heart disease, whereas another 5 had a distinct arteriopathy involving a long-segment stenosis of the distal internal carotid and proximal middle cerebral arteries. CONCLUSIONS: Using MassTag-polymerase chain reaction, we detected parvovirus B19-a virus known to infect erythrocytes and endothelial cells-in some cases of childhood arterial ischemic stroke. This approach can generate new, testable hypotheses about childhood stroke pathogenesis.
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