The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation

The severity of neurological disorders in ischemic stroke (IS) in the presence of atrial fibrillation (AF) is known to be higher than that in patients with sinus rhythm. The impact of preventive antithrombotic therapy (ATT) on the clinical manifestations and outcomes of stroke remains a matter of de...

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Main Authors: L. A. Geraskina, M. M. Alieva, A. V. Fonyakin, M. Yu. Maksimova, N. I. Garabova, M. G. Burzhunova
Format: Article
Language:Russian
Published: IMA-PRESS LLC 2020-10-01
Series:Неврология, нейропсихиатрия, психосоматика
Subjects:
Online Access:https://nnp.ima-press.net/nnp/article/view/1444
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author L. A. Geraskina
M. M. Alieva
A. V. Fonyakin
M. Yu. Maksimova
N. I. Garabova
M. G. Burzhunova
author_facet L. A. Geraskina
M. M. Alieva
A. V. Fonyakin
M. Yu. Maksimova
N. I. Garabova
M. G. Burzhunova
author_sort L. A. Geraskina
collection DOAJ
description The severity of neurological disorders in ischemic stroke (IS) in the presence of atrial fibrillation (AF) is known to be higher than that in patients with sinus rhythm. The impact of preventive antithrombotic therapy (ATT) on the clinical manifestations and outcomes of stroke remains a matter of debate.Objective: to analyze the quality of preventive ATT and to clarify its relationship to the severity of IS in AF.Patients and methods. The data from the registry of patients (n = 200; 96 (48%) men) (mean age, 71±9 years) with IS and AF were analyzed. Neurological deficit at admission was graded using the National Institutes of Health Stroke Scale (NIHSS). The presence and nature of prestroke antithrombotic therapy were studied.Results and discussion. Prestroke ATT was performed in 80 (40%) patients, of whom 36 (18%) took antiplatelet agents (APAs). Oral anticoagulants (OACs) were given to 44 patients. The international normalized ratio (INR) in the use of vitamin K antagonists (VKAs) averaged 1.26 [1.11; 1.64]. Neurological deficit was most obvious in the patients who had not previously received ATT (a NIHSS score of 8 [5; 12]). In comparison with them, the regular use of ATT, including APAs and OACs, was associated with the greater likelihood of less severe neurological deficit (a NIHSS of <8): odds ratio (OR), 2.121; 95% confidence interval (CI), 1.178–3.820. The greatest decrease in stroke severity was related to direct (OACs) (DOACs): OR, 2.727 (95% CI, 1.049–7.089), while there was no positive effect of VKAs (OR, 1.534; 95% CI, 0.538–4.377), which was associated with failure to achieve the INR target. Improvement was also related to the prescription of APAs (OR, 2.111; 95% CI, 0.981–4.539).Conclusion. Preventive ATT for a significant proportion of AF patients does not meet the current recommendations. At the same time, ATT, especially that with DOACs, is associated with the lesser severity of IS.
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spelling doaj.art-0503666af13b407687a59fd0c34148792023-03-13T08:42:20ZrusIMA-PRESS LLCНеврология, нейропсихиатрия, психосоматика2074-27112310-13422020-10-01125182310.14412/2074-2711-2020-5-18-231045The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillationL. A. Geraskina0M. M. Alieva1A. V. Fonyakin2M. Yu. Maksimova3N. I. Garabova4M. G. Burzhunova5Research Center of NeurologyMedical Institute, Peoples’ Friendship University of Russia (RUDN University)Research Center of NeurologyResearch Center of NeurologyMedical Institute, Peoples’ Friendship University of Russia (RUDN University)Medical Institute, Peoples’ Friendship University of Russia (RUDN University)The severity of neurological disorders in ischemic stroke (IS) in the presence of atrial fibrillation (AF) is known to be higher than that in patients with sinus rhythm. The impact of preventive antithrombotic therapy (ATT) on the clinical manifestations and outcomes of stroke remains a matter of debate.Objective: to analyze the quality of preventive ATT and to clarify its relationship to the severity of IS in AF.Patients and methods. The data from the registry of patients (n = 200; 96 (48%) men) (mean age, 71±9 years) with IS and AF were analyzed. Neurological deficit at admission was graded using the National Institutes of Health Stroke Scale (NIHSS). The presence and nature of prestroke antithrombotic therapy were studied.Results and discussion. Prestroke ATT was performed in 80 (40%) patients, of whom 36 (18%) took antiplatelet agents (APAs). Oral anticoagulants (OACs) were given to 44 patients. The international normalized ratio (INR) in the use of vitamin K antagonists (VKAs) averaged 1.26 [1.11; 1.64]. Neurological deficit was most obvious in the patients who had not previously received ATT (a NIHSS score of 8 [5; 12]). In comparison with them, the regular use of ATT, including APAs and OACs, was associated with the greater likelihood of less severe neurological deficit (a NIHSS of <8): odds ratio (OR), 2.121; 95% confidence interval (CI), 1.178–3.820. The greatest decrease in stroke severity was related to direct (OACs) (DOACs): OR, 2.727 (95% CI, 1.049–7.089), while there was no positive effect of VKAs (OR, 1.534; 95% CI, 0.538–4.377), which was associated with failure to achieve the INR target. Improvement was also related to the prescription of APAs (OR, 2.111; 95% CI, 0.981–4.539).Conclusion. Preventive ATT for a significant proportion of AF patients does not meet the current recommendations. At the same time, ATT, especially that with DOACs, is associated with the lesser severity of IS.https://nnp.ima-press.net/nnp/article/view/1444ischemic strokeatrial fibrillationantithrombotic therapy
spellingShingle L. A. Geraskina
M. M. Alieva
A. V. Fonyakin
M. Yu. Maksimova
N. I. Garabova
M. G. Burzhunova
The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
Неврология, нейропсихиатрия, психосоматика
ischemic stroke
atrial fibrillation
antithrombotic therapy
title The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
title_full The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
title_fullStr The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
title_full_unstemmed The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
title_short The quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
title_sort quality of prior antithrombotic therapy and the severity of ischemic stroke in atrial fibrillation
topic ischemic stroke
atrial fibrillation
antithrombotic therapy
url https://nnp.ima-press.net/nnp/article/view/1444
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