Comparison of Allen Score with Siriraj Stroke Score in ischemic stroke separation from hemorrhagic stroke

Abstract

The purpose of this study is to investigate the sensitivity and specificity and positive and negative predictive value of these two criteria or scoring so that the possibility of ischemic or hemorrhagic can be detected to a high extent at the very beginning and it can be used in blood pressure control and planning. Thrombolytic therapy and other treatments were decided quickly

Method: All patients referred to Imam Reza Tabriz Emergency Department who were diagnosed with stroke during the first 6 months of 2021 were included in the study as a whole number. A form containing the variables for both scores will be filled out by the authors, and definitions and instructions will be followed according to the main scores. CT scan will be done in all patients. Scores were calculated from the above variables and they were compared in the 'definite' results, i.e. the percentage of scores in which the scores predicting ischemia or bleeding with certainty were suggested in the original study. Results are considered definitive when Allen score is <4 and >24, <1 and >1 for Siriraj stroke score. Kappa statistics were determined for agreement between two scores for specific items.

Results: In examining the sensitivity and specificity of Siriraj score, taking into account the impossibility of subtracting between ischemic and hemorrhagic stroke in numbers between 1 and -1 and calculating them in the assessment of stroke type of patients, therefore the sensitivity is 100% (97.11%-100% ) and the specificity is 58.39% (52.31%-64.29%) and its positive predictive value was equal to 97.86% (97.54%-98.13%) and its negative predictive value was 100%.