Bispectral Index for Improving Intraoperative Awareness and Early Postoperative Recovery in Adults

AORN Journal ◽  
2020 ◽  
Vol 112 (5) ◽  
pp. 578-579
Keyword(s):  
Bispectral Index ◽  
Postoperative Recovery ◽  
Intraoperative Awareness

scholarly journals Asymmetry of the bispectral index in lateral decubitus position during one-lung ventilation: A prospective-observational study

2019 ◽  
Author(s):  
Se Hee Kang ◽  
MiHye Park
Keyword(s):  
Bispectral Index ◽  
Prospective Observational Study ◽  
Lung Ventilation ◽  
Lateral Decubitus Position ◽  
One Lung Ventilation ◽  
Intraoperative Awareness ◽  
Non Invasive ◽  
Left Lateral Decubitus Position ◽  
Lateral Decubitus ◽  
Two Sides

Abstract Background Use of the bispectral index (BIS) reduces cases of intraoperative awareness and deep sedation. Although non-invasive, the BIS values are often misunderstood. This study evaluated the effects of BIS readings during intra-operative positioning and ventilation. Methods Forty-four patients undergoing esophageal cancer surgery were enrolled. BIS sensors were applied on right and left sides. A > 10% difference in BIS reading between the two sides was defined as ‘asymmetry.’ Results Intraoperative BIS asymmetry was observed in 14 (32.6%) patients in the supine position, but 43 (100%) patients in the left lateral decubitus position. The maximum differences between BIS values were observed 15 minutes after one-lung ventilation in the left lateral decubitus position (mean 6.8 ± 4.6, range [1-27]). Conclusion During one-lung ventilation in the lateral decubitus position, care should be taken when placing a BIS sensor and interpreting BIS values.

Bispectral Index for Improving Anesthetic Delivery and Postoperative Recovery

2008 ◽  
Vol 106 (4) ◽  
pp. 1326 ◽  
Author(s):  
Yodying Punjasawadwong ◽  
Nutchanart Boonjeungmonkol ◽  
Aram Phongchiewboon
Keyword(s):  
Bispectral Index ◽  
Postoperative Recovery

scholarly journals Closed-Loop Anaesthesia Delivery System (CLADSTM) using Bispectral Index: A Performance Assessment Study

2007 ◽  
Vol 35 (3) ◽  
pp. 357-362 ◽  
Author(s):  
G. D. Puri ◽  
B. Kumar ◽  
J. Aveek
Keyword(s):  
Delivery System ◽  
Bispectral Index ◽  
Closed Loop ◽  
Anaesthetic Agent ◽  
Elective Surgery ◽  
Maintenance Phase ◽  
Postoperative Recovery ◽  
Manual Control ◽  
Anaesthetic Depth ◽  
Anaesthesia Delivery

The development of electroencephalographic indices of anaesthetic depth has in turn generated interest in automated anaesthesia delivery systems using these as the input variable. In this paper, one patented closed loop anaesthesia delivery system (CLADS) (502/DEL/2003) is compared to manual control of propofol delivery titrated to the bispectral index (BIS™). Forty ASA I-II patients undergoing elective surgery under general anaesthesia were enrolled in the study. The study participants were randomised using computer generated random numbers to two equal groups. One group received propofol titrated by the CLADS while in the other group (control), anaesthetic delivery was manually titrated to BIS™. Closed loop anaesthetic delivery using our patented system led to lower induction doses of propofol (P<0.05) and less overshoot of the target BIS (P<0.05). The closed loop system maintained BIS to within ±10 of target for a significantly longer time during the maintenance phase of anaesthesia (P <0.01). Smaller amounts of anaesthetic agent were required (P <0.01) and there was faster postoperative recovery (P <0.05). Manual delivery of propofol required the infusion rate to be changed a median of 30 times (IQR 12-45), which required considerable time and attention by the anaesthetist. In conclusion, automated delivery of propofol adjusted to the bispectral index using our CLADS was both effective and efficient as compared to manual control.

Bispectral Index and non-Bispectral Index anesthetic protocols on postoperative recovery outcomes

2018 ◽  
Vol 84 (2) ◽  
Author(s):  
Min-Hsien CHIANG ◽  
Shao-Chun WU ◽  
Shih-Wei HSU ◽  
Jo-Chi CHIN
Keyword(s):  
Bispectral Index ◽  
Postoperative Recovery
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