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J Vasc Interv Neurol · May 2015
Can the World Federation of Neurosurgical Societies Classification Accurately Predict Outcomes in Intracerebral Hemorrhage?
- Réza Behrouz and Asma Zakaria.
- Associate Professor, Division of Cerberovascular Diseases and Neurosciences Critical Care, Department of Neurology, The Ohio State Univerisity College of Medicine, Columbus, OH, USA.
- J Vasc Interv Neurol. 2015 May 1;8(2):9-12.
BackgroundMany scoring systems have been developed for the purpose of estimating of mortality and outcomes in intracerebral hemorrhage (ICH). However, the utility of the World Federation of Neurosurgical Society (WFNS) classification, which is routinely used in patients with subarachnoid hemorrhage, has never been specifically assessed in ICH.MethodsA retrospective review of the records of consecutive ICH patients admitted over a 2-year period was carried out. Collected data included ICH size, location, intraventricular hemorrhage, age, admission Glasgow Coma Scale scores, and outcomes on discharge. Linear regression was performed to confirm correlations of the WFNS scale and the ICH score separately with good outcome, poor outcome, and in-hospital mortality. Receiver-operator characteristic (ROC) curve was employed to plot WFNS and ICH scores each in relation to in-hospital mortality and poor outcome. Accuracy was estimated by calculating the area under the curves (AUC).ResultsIn this study, 128 patients were included. The overall mortality rate was 34.4%. Linear regression showed appropriate fit for both the ICH Score and the WFNS in relation to poor outcome and mortality. The ROC curves for the scales in relation to in-hospital death produced an AUC estimate 0.93 for WFNS and 0.92 for the ICH Score (p = 0.81). For poor outcome, the AUC values were 0.91 and 0.90 for the WFNS and the ICH Score, respectively (p = 0.9). For good outcome, the AUC for WFNS was 0.86 and for the ICH score, 0.85 (p = 0.74).ConclusionThe WFNS classification is as accurate as the ICH score in predicting discharge outcomes and in-hospital mortality. It is a simple clinical scale that can be used to predict outcomes in both ICH and subarachnoid hemorrhage patients.
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