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Internal Carotid Artery Septa in Sickle Cell Disease: Risk Factor for Stroke?

Published online by Cambridge University Press:  02 December 2014

Pranshu Sharma
Affiliation:
Department of Neuroradiology, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
Mayank Goyal
Affiliation:
Department of Neuroradiology, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
Ali M. Al-Khathaami
Affiliation:
Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
Andrew Demchuk
Affiliation:
Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
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Sickle cell disease is a hemoglobinopathy occurring due to replacement of valine for glutamic acid at the sixth position of the beta globin chain. The altered hemoglobin structure makes it prone for polymerization during hypoxic and infective stress. Polymerization of the hemoglobin molecule leads to sickling of the red blood cells in the vessels causing thrombosisvasoocclusive crises. Although abdomen and extremities are more often involved, silent cerebral infarcts and stroke can occur in up to 25-29% of patients and is the major cause of morbidity and mortality.

Type
Peer Reviewed Letter
Copyright
Copyright © The Canadian Journal of Neurological 2008

References

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