Correlation between Ramsay Sedation Scale and Richmond Agitation-Sedation Scale with Bispectral Index Monıtoring in the Intensive Care Unit

Abstract

Background: Achieving appropriate sedation levels in mechanically ventilated patients is very crucial in intensive care units. Reaching and keeping appropriate level of sedation in these patients is a common problem.. By reaching appropriate sedation and analgesia, comfort and easier adoption to weaning is aimed. For adequate and appropriate sedation, monitoring the sedation level is needed. Different scoring techniques are used for this purpose. Our aim is to compare Bispectral index (BIS) monitoring, which is an objective method, with subjective clinical sedation scales, and to investigate the correlation between them. Methods: Data of patients, whom sedation and mechanical ventilation were performed in postoperative period, were analysed retrospectively. All patients with comorbidities which cause altered brain function and who needed inotropic drugs were excluded from the study. Richmond Sedation Scale (RSS) levels were held between +2-+3, and Richmond Agitation Sedation Scale (RASS), BIS and hemodynamic parameters were recorded in every hour for 6 hours. Results: A negative correlation between BIS and clinical sedation scales was observed in patients who had superficial sedation. RASS levels ranged from 0 to "-3", and average BIS value was 75. The average BIS value at RAMSAY