title: Bispectral index monitoring to facilitate early extubation following cardiovascular surgery.
abstract: Frequently, intensive care nurses assume responsibility for extubating patients after undergoing cardiac surgery. Bispectral index (BIS) monitoring assesses level of mental arousal and awareness when sedated. This study was to determine if the BIS might facilitate earlier extubation of patients following cardiac surgery. A study was conducted comparing 25 stable patients returning to the intensive care unit with a BIS with 25 patients managed without the BIS (N = 50). Data collected included age, sex, surgery, pH, CO2, and temperature on arrival/extubation, total intravenous propofol and pain medication, and BIS scores. Student t tests determined that there were no differences between groups for age, amount of propofol and pain medication received, or time to extubation (P > .05). Regression analysis determined that total propofol, total hydromorphone, and age were significant predictors of time to extubation. In this study, the BIS monitor did not facilitate earlier extubation in the stable patient after cardiac surgery.
authors.affiliation: Cardiovascular Intensive Care Unit, Inova Health Systems, Falls Church, Virginia 22032, USA.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Anderson
authors.forename: Linda
authors.initials: L
authors.lastname: Henry
authors.forename: Sharon
authors.initials: S
authors.lastname: Hunt
authors.forename: Niv
authors.initials: N
authors.lastname: Ad
mesh_terms: D001291:Attitude of Health Personnel; D006348:Cardiac Surgical Procedures / Q000451:nursing; D016009:Chi-Square Distribution; D015400:Clinical Nursing Research; D016292:Procedural Sedation / Q000451:nursing / Q000706:statistics & numerical data; D003422:Critical Care / Q000379:methods*; D004569:Electroencephalography / Q000379:methods* / Q000451:nursing; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods* / Q000451:nursing; D009730:Nursing Assessment / Q000379:methods; D015404:Nursing Methodology Research; D009741:Nursing Staff, Hospital / Q000193:education / Q000458:organization & administration / Q000523:psychology; D010865:Pilot Projects; D011182:Postoperative Care / Q000193:education / Q000379:methods* / Q000451:nursing; D011446:Prospective Studies; D012044:Regression Analysis; D013997:Time Factors; D015300:Ventilator Weaning / Q000379:methods* / Q000451:nursing