Relationship between brain computed tomography findings and bispectral index score in patients presenting with head trauma

Abstract

OBJECTIVE: Head trauma is one of the most important emergency health problems both in the world and in our country. Theobjective in our study is to (i) state the correlation between the findings of bispectral index score (BIS) and computed tomography (CT), which are used to evaluate the level of consciousness of patients with isolated head trauma, and (ii) investigateobjective results about the patient’s level of consiousness/alertness according to the CT modality, which is used frequently.METHODS: This prospective study was carried out between 03.01.2014 and 09.01.2014 in the emergency department ofFatih Sultan Mehmet Education and Research Hospital. The average BIS scores were correlated with the Glasgow Coma Scale(GCS) point, the Canadian CT Head Rule major and minor criteria, and the pathologic findings in CT imaging. The patients’demographic features, vital signs at admission, and arrival times at the hospital were investigated.RESULTS: In our study, 64 (31.7%) patients were female, and 138 (68.3%) patients were male. The mean BIS scoreswere 84.99±11.20 (86.05) and 93.78±3.80 (95.05) in patients with and without CT pathologies, respectively. The correlation between CT pathology and BIS scores was statistically significant: BIS scores were lower in patients with CTpathologies (p=0.001; p