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Published on: July 5, 2024
[The effect of ischemia-related leukoaraiosis on the conscious disturbance after stroke]
Yan-Nan Fang1, Ai-Wu Zhang, Hua Li
1Department of Neurology, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China.
Objective:
To explore the effect of leukoaraiosis on conscious disturbance in patients with acute cerebral infarction.
Methods:
A follow-up study including 138 patients with acute cerebral infarction matched with the diagnostic criteria of the Forth Cerebrovascular Disease Conference, were carried out. Patients were divided into two groups, using MRI to estimate the white substance process around cerebral ventricle, including 78 of them with leukoaraiosis and 60 without leukoaraiosis were followed up using Glasgow coma scale scores and England OCSP classification in 1 month, 3 month and 6 month after onset.
Results:
The independent factors of conscious disturbance included leukoaraiosis (OR = 5.294, 95% CI: 1.451-19.318), and OCSP classification (TACI and POCI especially) (OR = 14.489, 95% CI: 4.121-50.934). At the initial, the first month and the third month of the stroke episodes, significant difference (P < 0.05) was noticed when using Glasgow coma scales, and the scales in leukoaraiosis group was lower than the control.
Conclusion:
TACI and POCI in OCSP classification were independent risk factors of conscious disturbance, and leukoaraiosis was also the independent factor. The incidence of conscious disturbance after stroke in patients with leukoaraiosis were lower than in that without leukoaraiosis. On the other hand, the degree of conscious disturbance was more serious and slower than those without leukoaraiosis, suggesting that the effect of leukoaraiosis was duplicate for conscious disturbance. Because patients with leukoraiosis had tolerance of chronic cerebral ischemia. The number of patients with conscious disturbance after stroke was fewer relatively. Leukoaraiosis had inactive effect for amelioration of conscious disturbance after three months of the episode. The grouping of OCSP played a primary while leukoaraiosis playing a secondary role, despite the patients with or without conscious disturbance after stroke.
Insights
Leukoaraiosis, a white matter change, is an independent risk factor for conscious disturbance after acute cerebral infarction. While fewer patients with leukoaraiosis experienced conscious disturbance, their condition was more severe and recovery slower.
Area of Science:
- Neurology
- Neuroimaging
- Cerebrovascular Disease
Context:
- Acute cerebral infarction affects numerous individuals globally, with conscious disturbance being a significant complication.
- Leukoaraiosis, characterized by white matter changes around cerebral ventricles, is increasingly recognized as a potential contributor to stroke outcomes.
Purpose:
- To investigate the impact of leukoaraiosis on the development and severity of conscious disturbance in patients following an acute cerebral infarction.
- To identify independent risk factors for conscious disturbance, including leukoaraiosis and Oxfordshire Community Stroke Project (OCSP) classification.
Summary:
- A follow-up study of 138 acute cerebral infarction patients revealed leukoaraiosis as an independent risk factor for conscious disturbance (OR = 5.294).
- Patients with leukoaraiosis showed lower Glasgow Coma Scale scores at initial, 1-month, and 3-month follow-ups compared to controls.
- While leukoaraiosis was associated with a lower incidence of conscious disturbance, its severity was greater and recovery slower, suggesting a complex, potentially protective yet exacerbating role.
Impact:
- Findings highlight leukoaraiosis as a crucial factor influencing post-stroke conscious disturbance, necessitating consideration in clinical assessment and management.
- The study underscores the dual role of leukoaraiosis, potentially conferring some resilience to chronic ischemia while worsening acute outcomes.
- Results emphasize the importance of integrating neuroimaging findings like leukoaraiosis with clinical classifications (OCSP) for comprehensive stroke patient evaluation.
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