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Published on: May 28, 2019
[Cryoglobulinemia and extracorporal plasma therapy in severe ischemic stroke]
Insights
Cryoglobulins (CG) correlate with stroke severity and blood viscosity. Plasmapheresis reduced CG levels, improving patient outcomes and blood rheology in ischemic stroke patients.
Area of Science:
- Neurology
- Hematology
- Immunology
Context:
- Ischemic stroke is a leading cause of disability.
- Cryoglobulinemia can be associated with various conditions, including cerebrovascular diseases.
- Understanding the role of cryoglobulins in stroke pathogenesis is crucial for developing effective treatments.
Purpose:
- To investigate the correlation between cryoglobulin levels and the severity of ischemic stroke.
- To evaluate the impact of plasmapheresis on cryoglobulin levels and clinical outcomes in stroke patients.
- To assess the effect of plasmapheresis on hemostatic parameters and blood rheology.
Summary:
- Forty-five patients with carotid ischemic stroke were studied within 24 hours of onset.
- Cryoglobulin (CG) levels positively correlated with stroke severity (Orgogozo scale) and increased platelet aggregation and blood hyperviscosity.
- Plasmapheresis treatment in 22 patients led to decreased CG levels, improved neurological function (NIH scale), and enhanced functional rehabilitation (Barthel scale), indicating better blood rheology.
Impact:
- Cryoglobulin levels serve as a potential biomarker for stroke severity and prognosis.
- Plasmapheresis demonstrates therapeutic potential in managing ischemic stroke by improving blood rheology and reducing cryoglobulinemia.
- Findings contribute to a better understanding of the pathophysiology of ischemic stroke and highlight novel therapeutic strategies.
Abstract:
Forty-five patients with carotid ischemic stroke have been examined within the first 24 hours from the disease onset. The Orgogozo and NIH scales were used to objectify a severity of the patient's state and the Barthel scale--to evaluate a degree of functional rehabilitation. Cryoglobulins (CG) were measured in blood serum by spectrophotometric method on the 1st, 2nd, 3rd, 7th and 21st days. Selective plasmapheresis was included in the therapeutic complex for 22 randomly selected patients. In both groups, a level of CG positively correlated with a severity of the patient's state on the 1st day of the monitoring (r=-0.5; p<0.01). The study of hemostasis indicated the presence of a direct correlation between an increase of platelet aggregation, blood hyperviscosity and CG concentration (r=0.46; p<0.05 and r=0.74; p<0.01, respectively). Higher scoring on the Orgogozo scale and Barthel scale prevailed in the group treated with plasmapheresis that significantly correlated with a decrease in CG concentration in blood serum (r=-0.6; p<0.05 and r=0.5; p<0.05 respectively). An evaluation of platelet aggregation, blood viscosity and a coagulogram on the 21st day of the disease revealed a significant improvement of blood rheology in the group of patients switched to efferent therapy.
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