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BNP on Admission Combined with Imaging Markers of Multimodal CT to Predict the Risk of Cardioembolic Stroke
Ruoyao Cao1,2, Yun Jiang3, Ling Li1
1Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, China.
Insights
B-type natriuretic peptide (BNP) and mismatch ratio (MMR) effectively distinguish cardioembolic (CE) stroke from non-CE stroke. Combining BNP and MMR improves prediction accuracy for CE stroke in acute ischemic stroke patients undergoing EVT.
Area of Science:
- Neurology
- Cardiology
- Medical Imaging
Background:
- Acute ischemic stroke (AIS) management requires differentiating cardioembolic (CE) stroke from non-CE stroke.
- Accurate differentiation aids in tailoring individualized endovascular treatment (EVT) plans.
Purpose of the Study:
- To evaluate the roles of B-type natriuretic peptide (BNP) and imaging markers in distinguishing CE from non-CE stroke.
- To provide data for optimizing EVT strategies in AIS patients.
Main Methods:
- Retrospective analysis of 160 patients with unilateral anterior circulation large vessel occlusion undergoing EVT.
- Comparison of risk factors, laboratory tests, and imaging parameters between CE and non-CE groups.
- Logistic regression and ROC curve analysis to identify predictive factors and assess diagnostic values.
Main Results:
- BNP, MMR, NIHSS, and AF were independent predictors of CE stroke.
- BNP demonstrated high diagnostic value (AUC=0.846) for CE stroke.
- Combined BNP and MMR improved CE stroke prediction (AUC=0.858) with enhanced sensitivity and specificity.
Conclusions:
- BNP on admission, particularly when combined with MMR, is a valuable predictor for CE stroke risk.
- This combination enhances risk stratification and diagnostic information for clinicians managing AIS patients.
- Findings support improved patient selection for EVT and personalized treatment approaches.
Background:
The aim of the study was to find the potential roles of B-type natriuretic peptide (BNP) and imaging markers on distinguishing cardioembolic (CE) stroke from non-CE stroke, so as to provide useful information for making individualized endovascular treatment (EVT) plan for the patients with acute ischemic stroke (AIS).
Methods:
The patients with unilateral anterior circulation large vessel occlusion who underwent EVT between March 2016 and December 2021 were analyzed in this study, retrospectively. The risk factors, laboratory test indicators, imaging parameters, and other factors were compared between the CE group and non-CE group. Logistic regression was used to analyze the risk factors of CE stroke. ROC curves were used to assess the values of different parameters on distinguishing CE stroke from non-CE stroke. The relationships between BNP and imaging parameters were assessed using the Spearman correlation analysis.
Results:
160 patients were enrolled in the study and divided into the CE group (n = 66) and non-CE group (n = 94). BNP (odds ratio (OR) = 1.004; 95% CI, 1.001-1.009; p = 0.038), MMR (OR = 0.736; 95% CI, 0.573-0.945; p = 0.016), NIHSS (OR = 1.150; 95% CI, 1.022-1.294; p = 0.020), and AF (OR = 556.968; 95% CI, 51.739-5995.765; p < 0.001) were the independent predictive factors of CE stroke. The area under the curve (AUC) of BNP and mismatch ratio (MMR) were 0.846 (95% CI (0.780-0.898), p < 0.001) and 0.636 (95% CI (0.633-0.779), p < 0.001), respectively. The cut-off value of BNP was 249.23 pg/mL with the sensitivity of 74.24% and the specificity of 82.98%. BNP combined with MMR improved the predictive value for CE stroke. The AUC of the combination was 0.858 with the sensitivity of 84.85% and the specificity of 73.40%. BNP was correlated with 4D CTA collateral score, MMR, clot burden score, final infarct volume, infarct core volume, and ischemic penumbra volume (all, p < 0.05).
Conclusion:
BNP on admission combined with MMR is valuable for the risk prediction of CE stroke, which will promote the further screening of the high-risk patients with CE stroke and provide more diagnostic information for clinicians.
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