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Korean J Anesthesiol > Volume 44(6); 2003 > Article
Korean Journal of Anesthesiology 2003;44(6):733-738.
DOI: https://doi.org/10.4097/kjae.2003.44.6.733   
The Effect of Lidocaine Injection Just before Extubation on Laryngospasm or Stridor in Pediatric Strabismus Surgery.
Seong Ho Chang, Dae Hee Kim, Ji Yong Park, Po Soon Kang, Hye Won Lee, Hae Ja Lim, Suk Min Yoon
1Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University, Seoul, Korea. torchid@korea.ac.kr
2Department of Anesthesiology and Pain Medicine, College of Medicine, Kon-kuk University, Chungju, Korea.
Abstract
BACKGROUND
During anesthesia in children sometimes we are confronted with airway obstruction, due to for example laryngospasm or stridor just after tracheal extubation. The use of intravenous lidocaine to prevent laryngospasm or stridor is controversial. This study was undertaken to investigate the effect of intravenous lidocaine on the prevention of laryngospasm or stridor by checking oxygen saturation using a pulse oximeter.
METHODS
Sixty children undergoing strabismus surgery with general anesthesia (N2O-O2-enflurane) were divided into two groups, the L group (n = 32) received intravenous lidocaine 1 mg/kg, and the S group (n = 28) received the same amount of saline, both 5 minutes before extubation. The maximal and minimal levels of oxygen saturation were checked in the operation room and in the post anesthetic recovery room (PAR) after tracheal extubation. The numbers of patients with have oxygen saturation of less than 95% were counted in each group. Respiratory depression and sedation scores were noted at PAR in both groups.
RESULTS
The number of cases that experienced laryngospasm or stridor was 4 (12.5%) in the L group and 3 (10.7%) in the S group, showing no significant difference. No respiratory depression was observed in either group and no difference in the sedation scores 5, 15, 30 minutes after arrival at PAR was observed between two groups.
CONCLUSIONS
The intravenous administration of lidocaine 1 mg/kg 5 minutes before extubation in strabismus surgery did not prevent laryngospasm or stridor.
Key Words: Intravenous lidocaine; laryngospasm; strabismus surgery
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