Background and aim: Using bispectral index (BIS) guided anaesthesia may affect the quality of
recovery and consumption of inhalational anaesthetic agents. The target of our study aimed to
evaluate the impact of BIS-guided anaesthesia when compared with standard clinical practice
to investigate the quality of recovery and sevoflurane concentration.
Patients and method: 54 children (aged3-12 years) go through ambulatory surgery that they
randomized to receive sevoflurane anaesthesia controlled either merely by clinical parameters
(controlled group), BIS-guided group within the BIS range of 40–60 (BIS group). The primary
outcome has recorded the recovery time. The secondary outcome recorded the quality of
recovery, which was measured by the Pediatric Anesthesia Emergence Delirium score.
Results: There were no statistically significant differences between Group C and Group BIS as
regard age, weight, time of surgery, Time of anaesthesia, sex, ASA, type of surgery, mean value
of PAED score at 20,25 and 30 min., heart rate and MAP. On the other hand, there were
statistically significant differences between Group C and Group BIS as regarding Time for
removal of the laryngeal mask, discharge to PACU, PACU time, PAED score at Baseline, 5, 10
and 15 min., and end-tidal sevoflurane concentration.
Conclusion: Sevoflurane anaesthesia guided by BIS results in decreased recovery and
decreased sevoflurane concentration without affecting the quality of recovery in children go
through ambulatory surgery.