Abstract:

Objective To explore applicability and safety of GlideScope video laryngoscope for tracheal intubation in clinical anesthesia.
Methods One hundred ASAⅠ~Ⅱ patients, aged(45±15) years, were randomly assigned into 2 groups(n=50 each), scheduled for gynaecological laparoscopic surgery under general anesthesia(group G) with tracheal intubation. Anaesthesia was induced with fentanyl 2~3 μg·kg^-1, propofol 2 mg·kg^-1, vecuronium 0.1 mg·kg^-1 and maintained with 1% isoflurane. Orotracheal intubation with GlideScope video laryngoscope was performed for group Ⅰ patients at 3 min after intravenous vecuronium; Group Ⅱ patients were intubated by direct laryngoscopy using Macintosh(group M). The glottic exposure time and the tracheal intubation time were recorded. The BP and HR were recorded before and after induction of anesthesia during tracheal intubation.
Results The glottic exposure time was(15.38±5.21)s in the group G and(14.21±3.11)s in the group M. The mean tracheal intubation time was(30.22±11.31)s in the group G and (30.11±12.23)s in the group M. The BP was significantly decreased after induction of anesthesia, but HR was significantly increased during tracheal intubation in both groups.
Conclusion GlideScope video laryngoscope achieved better glottic exposure with less tracheal irritation and damage. The method may reduce the risk of cross-infection to doctors.

Key words: tracheal intubation, GlideScope video laryngoscope, macintosh larygoscopy