OBJECTIVE: To assess the correlation between 2 clinical sedation scales and 2 electroencephalographic (EEG)-based monitors used during surgical procedures that required mild to moderate sedation. PATIENTS AND METHODS: Patients scheduled for elective surgery participated in this Institutional review board-approved study from March 2003 to February 2004. Level of sedation was determined both clinically using the Ramsay and the Observer's Assessment of Alertness/Sedation scales and with 2 EEG measures (the Bispectral Index version XP [BIS XP] or the Patient State Analyzer [PSA 4000]). Correlation between these 2 measures of sedation were tested using nonparametric statistical tests. RESULTS: The BIS XP monitor was used in 26 patients, and the PSA 4000 monitor was used in 24 patients. The Ramsay and Observer's Assessment of Alertness/Sedation scores correlated with each other (r = -0.96; P < .001) and with both the BIS XP (r = -0.89 and r = 0.91, respectively; P < .001) and the PSA 4000 (r = -0.80 and r = 0.80, respectively; P < .001) values. However, this correlation was strongest only at the extremes. Between the BIS XP and PSA 4000 values of 61 and 80, the clinical sedation scores varied greatly. CONCLUSION: On the basis of our results, these EEG-based monitors cannot reliably distinguish between light and deep sedation.
OBJECTIVE: To assess the correlation between 2 clinical sedation scales and 2 electroencephalographic (EEG)-based monitors used during surgical procedures that required mild to moderate sedation. PATIENTS AND METHODS: Patients scheduled for elective surgery participated in this Institutional review board-approved study from March 2003 to February 2004. Level of sedation was determined both clinically using the Ramsay and the Observer's Assessment of Alertness/Sedation scales and with 2 EEG measures (the Bispectral Index version XP [BIS XP] or the Patient State Analyzer [PSA 4000]). Correlation between these 2 measures of sedation were tested using nonparametric statistical tests. RESULTS: The BIS XP monitor was used in 26 patients, and the PSA 4000 monitor was used in 24 patients. The Ramsay and Observer's Assessment of Alertness/Sedation scores correlated with each other (r = -0.96; P < .001) and with both the BIS XP (r = -0.89 and r = 0.91, respectively; P < .001) and the PSA 4000 (r = -0.80 and r = 0.80, respectively; P < .001) values. However, this correlation was strongest only at the extremes. Between the BIS XP and PSA 4000 values of 61 and 80, the clinical sedation scores varied greatly. CONCLUSION: On the basis of our results, these EEG-based monitors cannot reliably distinguish between light and deep sedation.
Authors: Paul F White; Jun Tang; Hong Ma; Ronald H Wender; Alexander Sloninsky; Robert Kariger Journal: Anesth Analg Date: 2004-11 Impact factor: 5.108
Authors: Xiaoguang Chen; Jun Tang; Paul F White; Ronald H Wender; Hong Ma; Alexander Sloninsky; Robert Kariger Journal: Anesth Analg Date: 2002-12 Impact factor: 5.108
Authors: David R Drover; Harry J Lemmens; Eric T Pierce; Gilles Plourde; Gary Loyd; Eugene Ornstein; Leslie S Prichep; Robert J Chabot; Laverne Gugino Journal: Anesthesiology Date: 2002-07 Impact factor: 7.892
Authors: George Bitar; William Mullis; William Jacobs; David Matthews; Michael Beasley; Kevin Smith; Paul Watterson; Stanley Getz; Peter Capizzi; Felmont Eaves Journal: Plast Reconstr Surg Date: 2003-01 Impact factor: 4.730
Authors: Sunil B Nagaraj; Sowmya M Ramaswamy; Siddharth Biswal; Emily J Boyle; David W Zhou; Lauren M Mcclain; Eric S Rosenthal; Patrick L Purdon; M Brandon Westover Journal: Conf Proc IEEE Eng Med Biol Soc Date: 2016-08
Authors: Thomas D Caputo; Michael A E Ramsay; Jeffrey A Rossmann; M Miles Beach; Garth R Griffiths; Benjamin Meyrat; James B Barnes; David G Kerns; Brad Crump; Barnett Bookatz; Paul Ezzo Journal: Proc (Bayl Univ Med Cent) Date: 2011-07