Bispectral index for improving anaesthetic delivery and postoperative recovery

Punjasawadwong, Yodying; Phongchiewboon, Aram; Bunchungmongkol, Nutchanart

doi:10.1002/14651858.cd003843.pub2

Cited by 100 publications

(40 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We used the BIS to monitor the depth of anesthesia which provides a continuous age-independent monitoring of hypnotic state induced by the most widely used sedative-hypnotic agent and has been used to assess the induction quality, depth of anesthesia, intraoperative requirement of anesthetics, and to reduce the incidence of intraoperative recall and awareness. [8–11] Doi et al . studied the relationship between calculated blood concentration of propofol and electrophysiological variables (BIS, 95% SEF, median frequency, and auditory evoked potential index) during emergence from anesthesia and concluded that blood concentration of propofol best correlates with BIS value.…”

Section: Discussionmentioning

confidence: 99%

“…[7] Bispectral index (BIS) provides a continuous age-independent monitoring of hypnotic state induced by the most widely used sedative-hypnotic agent and has been used to assess the induction quality, depth of anesthesia, intraoperative requirement of anesthetics, postoperative recovery, and to reduce the incidence of intraoperative recall awareness. [8–11] BIS value of 0 represents an isoelectric electroencephalogram and 100 represents an awake state, whereas 40 to 60 reflect adequate hypnotic effect for general anesthesia.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of intraoperative depth of anesthesia on postoperative pain and analgesic requirement: A randomized prospective observer blinded study

Sahni

Anand

Gombar

et al. 2011

J Anaesthesiol Clin Pharmacol

View full text Add to dashboard Cite

Background:Intraoperative depth of anesthesia may affect postoperative pain relief. This prospective, randomized, and observer-blinded study assessed the effect of intraoperative depth of anesthesia on the postoperative pain and analgesic requirements in patients undergoing laparoscopic cholecystectomy.Materials and Methods:A total of 80 patients were randomly divided into two groups of 40 each. A standard technique for anesthesia was followed in all patients. Depth of anesthesia was monitored by bispectral index (BIS) and adjusted with 0.5 to 1.5% isoflurane in group S by addition of propofol in group B, if required, to maintain a BIS value of 45 to 40. Postoperative analgesia was provided by tramadol 1 mg/kg every 6 hours and rescue analgesia by morphine boluses. Postoperative pain was assessed by Visual analogue scale score at 0, 8, 16, and 24 hours.Results:The demographic characteristics were comparable in both groups. The mean BIS value in Group S was 63.32 ± 11.43 and 45.06 ± 15.31 in Group B, well in the range of 40 to 60, reflecting adequate hypnotic effect for general anesthesia. The mean arterial pressure was low in group B throughout the surgery (P<0.05-0.001). The pain score were lower in group B at 0 and 8 hours postoperatively when compared with group S (P<0.05). The rescue analgesic requirement was less in group B, compared with group S (P<0.05).Conclusion:Maintaining BIS to a value of 45 to 40 throughout the surgery results in better postoperative pain relief and decreased requirement of rescue analgesic without any untoward effect.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of intraoperative depth of anesthesia on postoperative pain and analgesic requirement: A randomized prospective observer blinded study

Sahni

Anand

Gombar

et al. 2011

J Anaesthesiol Clin Pharmacol

View full text Add to dashboard Cite

show abstract

“…However, there are questions regarding the efficacy for the use of a bispectral index (BIS) monitor while providing OBA [13,17]. Of interest is a recent Cochrane collaboration review completed by Punjasawadwong et al [18 ], in an effort to assess whether BIS reduced anesthesia use, recovery times, recall awareness and costs. They found that BIS-guided anesthesia reduced the requirement of propofol by 1.3 mg/kg/h for ambulatory gastrointestinal procedures.…”

Section: Monitoringmentioning

confidence: 99%

Anesthesia outside the operating room in the office-based setting

Perrott¹

2008

Current Opinion in Anaesthesiology

View full text Add to dashboard Cite

There is rapid growth for the need of safe and high quality office-based anesthesia. To meet these needs, a special set of skills is required, which may require expanded exposure and experience during training. An office-based anesthesia central data repository is needed for benchmarking and identifying areas for improvement. Finally, with advances in surgical technology, there is a need for focused research in office-based anesthetic techniques and modalities and patient satisfaction.

show abstract

“…Intraoperative monitoring of the depth of anesthetic is important to prevent this problem. Use of the bispectral index (BIS) reduces the cases of intraoperative awareness [2,3,4]. The BIS is a single number calculated from electroencephalogram (EEG)-derived sub-parameters.…”

Section: Introductionmentioning

confidence: 99%

Effect of beach chair position on bispectral index values during arthroscopic shoulder surgery

Lee

Choi

Han

et al. 2014

Korean J Anesthesiol

View full text Add to dashboard Cite

BackgroundBispectral index (BIS) monitoring reduces the cases of intraoperative awareness. Several factors can alter BIS readings without affecting the depth of anesthesia. We conducted a study to assess the impact of beach chair position (sitting position) on BIS readings.MethodsGeneral anesthesia was administered to 30 patients undergoing arthroscopic shoulder surgery. Patients were kept in neutral position (supine) for 10 minutes and BIS readings, mean arterial blood pressure, heart rate, end-tidal carbon dioxide, and end-tidal sevoflurane were recorded. Patients were then shifted to beach chair position. After 15 minutes, data were recorded.ResultsA significant decrease in BIS values (P < 0.01) associated with a position change from neutral position to beach chair position was evident.ConclusionsBIS values are significantly decreased in the beach chair position compared with the neutral position and might affect interpretation of the depth of anesthesia.

show abstract

Bispectral index for improving anaesthetic delivery and postoperative recovery

Cited by 100 publications

References 47 publications

Effect of intraoperative depth of anesthesia on postoperative pain and analgesic requirement: A randomized prospective observer blinded study

Effect of intraoperative depth of anesthesia on postoperative pain and analgesic requirement: A randomized prospective observer blinded study

Anesthesia outside the operating room in the office-based setting

Effect of beach chair position on bispectral index values during arthroscopic shoulder surgery

Contact Info

Product

Resources

About