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The mechanisms for activation of a vascular platelet component of hemostasis in the stroke recovery period and the ways of their correction

https://doi.org/10.14412/2074-2711-2019-1-72-78

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Abstract

Objective: to assess changes in the vascular platelet component of hemostasis in patients in different recovery periods of ischemic stroke (IS).

Patients and methods. The investigation enrolled 73 patients with prior IS. According to the remoteness of stroke, the patients were divided into two groups: 1) 41 patients with a stroke remoteness of 1 to 6 months (an early recovery period); 2) 32 patients with that of 7 to 12 months (a late recovery period). In addition, a group of patients with recurrent stroke was identified to evaluate the efficiency of secondary prevention. A control group consisted of 30 healthy volunteers. All the patients took acetylsalicylic acid (ASA). Medical history data and laboratory and instrumental findings were analyzed. To assess the vascular platelet component of hemostasis, platelet aggregation with inductors was studied applying optical aggregometry; enzyme immunoassay was used to estimate the concentrations of the inflammatory marker myeloperoxidase and the endothelial dysfunction (ED) markers sICAM-1 and sE-selectin.

Results and discussion. The patients were found to have enhanced platelet aggregation with inductors; moreover, this was more pronounced in the patients with recurrent stroke than in those with new-onset IS. This suggests that the vascular platelet component of hemostasis contributes to the progression of the disease and its unfavorable course and necessitates the monitoring of these parameters to choose optimal secondary prevention methods, such as replacement of ASA with clopidogrel or use of its combination with dipyridamol. The activity of chronic immune inflammation processes and ED was ascertained to be enhanced, which can contribute to the aggravation of cerebrovascular insufficiency and to the development of acute cerebrovascular accident.

Conclusion. In the recovery period of stroke, the follow-up monitoring of hemostatic parameters and immune inflammatory and ED markers is of importance in evaluating the efficiency of secondary prevention. For the successful prevention of recurrent strokes, it is necessary to prescribe adequate antiplatelet therapy, as well as drugs that have anti-inflammatory properties, affect intercellular interaction processes (ASA, clopidogrel, and statins), and suppress oxidative stress associated with endothelial inflammation (alpha-lipoic acid and succinic acid preparations).

About the Authors

E. A. Tyutyumova
N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia
Russian Federation

Ekaterina Alekseevna Tyutyumova

Department of Neurology

1, Ostrovityanov St., Moscow 117997



E. Yu. Solovyeva
N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia
Russian Federation

Department of Neurology

1, Ostrovityanov St., Moscow 117997



A. N. Karneev
N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia
Russian Federation

Department of Neurology

1, Ostrovityanov St., Moscow 117997



E. D. Dzhutova
N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia
Russian Federation

Department of Neurology

1, Ostrovityanov St., Moscow 117997



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For citation:


Tyutyumova E.A., Solovyeva E.Y., Karneev A.N., Dzhutova E.D. The mechanisms for activation of a vascular platelet component of hemostasis in the stroke recovery period and the ways of their correction. Neurology, Neuropsychiatry, Psychosomatics. 2019;11(1):72-78. (In Russ.) https://doi.org/10.14412/2074-2711-2019-1-72-78

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ISSN 2074-2711 (Print)
ISSN 2310-1342 (Online)