Clinical Benefits of Oral Anticoagulants for Elderly Patients With Cardioembolic Stroke at High Bleeding Risk
Copyright © 2024, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved..
BACKGROUND/AIM: The relationship between the severity of cardioembolic stroke (CES) and oral anticoagulant (OAC) treatment before stroke onset in very elderly (≥80 years) patients with nonvalvular atrial fibrillation (NVAF) at high bleeding risk remains unknown.
PATIENTS AND METHODS: A total of 364 consecutive patients (≥80 years) with CES and NVAF within 48 h following stroke onset were investigated. High bleeding risk was defined as follows: Bleeding history, renal dysfunction (creatinine clearance <30 ml/min), low body weight (≤45 kg), and antiplatelet or nonsteroidal anti-inflammatory drug use. Patients were divided into two groups: High bleeding risk (n=214) and non-high bleeding risk (n=150). We assessed stroke severity and functional outcome between the two groups, and evaluated the effect of therapy with direct OAC (DOAC) on stroke severity in the high-risk group.
RESULTS: The high-risk group had a worse modified Rankin Scale (mRS) at discharge than the non-high-risk group [median: 4 (range=2-5) vs. 3 (range=1-4); p=0.02]. Patients in the high-risk group were categorized according to OAC treatment before stroke onset: No OAC (n=148), warfarin (n=46), and DOAC (n=20). The numbers of patients with National Institutes of Health Stroke Scale score (NIHSS) ≥8 on admission in these groups were 104 (70%), 30 (65%), and 8 (40%) (p=0.03), respectively. Multivariate analysis confirmed that DOAC therapy had a lower odds ratio (OR) for severe stroke (NIHSS ≥8) on admission (OR relative to no OAC=0.22, 95% confidence interval=0.08-0.62; p=0.005) and poor functional outcome (mRS ≥4) at discharge (OR=0.31, 95% confidence interval=0.11-0.90; p=0.03).
CONCLUSION: Very elderly patients with CES at high bleeding risk have unfavorable functional outcomes. DOAC administration may be associated with reduced stroke severity.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:38 |
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Enthalten in: |
In vivo (Athens, Greece) - 38(2024), 2 vom: 27. März, Seite 725-733 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Saito, Kazumasa [VerfasserIn] |
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Links: |
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Themen: |
Anticoagulants |
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Anmerkungen: |
Date Completed 01.03.2024 Date Revised 04.03.2024 published: Print Citation Status MEDLINE |
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doi: |
10.21873/invivo.13494 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
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520 | |a Copyright © 2024, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved. | ||
520 | |a BACKGROUND/AIM: The relationship between the severity of cardioembolic stroke (CES) and oral anticoagulant (OAC) treatment before stroke onset in very elderly (≥80 years) patients with nonvalvular atrial fibrillation (NVAF) at high bleeding risk remains unknown | ||
520 | |a PATIENTS AND METHODS: A total of 364 consecutive patients (≥80 years) with CES and NVAF within 48 h following stroke onset were investigated. High bleeding risk was defined as follows: Bleeding history, renal dysfunction (creatinine clearance <30 ml/min), low body weight (≤45 kg), and antiplatelet or nonsteroidal anti-inflammatory drug use. Patients were divided into two groups: High bleeding risk (n=214) and non-high bleeding risk (n=150). We assessed stroke severity and functional outcome between the two groups, and evaluated the effect of therapy with direct OAC (DOAC) on stroke severity in the high-risk group | ||
520 | |a RESULTS: The high-risk group had a worse modified Rankin Scale (mRS) at discharge than the non-high-risk group [median: 4 (range=2-5) vs. 3 (range=1-4); p=0.02]. Patients in the high-risk group were categorized according to OAC treatment before stroke onset: No OAC (n=148), warfarin (n=46), and DOAC (n=20). The numbers of patients with National Institutes of Health Stroke Scale score (NIHSS) ≥8 on admission in these groups were 104 (70%), 30 (65%), and 8 (40%) (p=0.03), respectively. Multivariate analysis confirmed that DOAC therapy had a lower odds ratio (OR) for severe stroke (NIHSS ≥8) on admission (OR relative to no OAC=0.22, 95% confidence interval=0.08-0.62; p=0.005) and poor functional outcome (mRS ≥4) at discharge (OR=0.31, 95% confidence interval=0.11-0.90; p=0.03) | ||
520 | |a CONCLUSION: Very elderly patients with CES at high bleeding risk have unfavorable functional outcomes. DOAC administration may be associated with reduced stroke severity | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Atrial fibrillation | |
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700 | 1 | |a Soma, Takanobu |e verfasserin |4 aut | |
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700 | 1 | |a Yamada, Natsumi |e verfasserin |4 aut | |
700 | 1 | |a Shiroto, Hiroshi |e verfasserin |4 aut | |
700 | 1 | |a Saito, Shin |e verfasserin |4 aut | |
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700 | 1 | |a Tomita, Hirofumi |e verfasserin |4 aut | |
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