A comparative study among normal saline, water soluble gel and 2% lidocaine gel as a SLIPA lubricant

Abstract

BackgroundThis study was designed to find appropriate lubricant for streamed lined liner of pharyngeal airway™ (SLIPA™). We evaluated the incidence of sore throat, nausea, vomiting, hoarseness, paresthesia and blood stain after using saline, water soluble gel and 2% lidocaine gel as a SLIPA™ lublicant.MethodsOne hundred twenty three patients scheduled for minor surgery to whom the SLIPA™ was considered suitable were randomly allocated to one of three groups which receive normal saline, water soluble gel or 2% lidocaine gel as a SLIPA™ lublicant. Patients were interviewed at recovery room, post operation 6-12 hour, post operation 18-24 hour about sore throat and other complications.ResultsThere were no statistical difference in sore throat and blood stain among three groups. Also there were no statistical differences in hoarseness, nausea, vomiting. The incidence of paresthesia in 2% lidocaine gel group was significantly higher than those of the other two groups immediately after operation, but it was resolved after leaving the recovery room.ConclusionsOur results suggest that normal saline, water soluble gel and 2% lidocaine gel are all available as a SLIPA™ lubricant. Size of SLIPA™, insertion technique and difficulty of insertion should be further investigated as the main causes of a sore throat and other complications which can occur after the insertion of SLIPA™.

A prospective randomised study of a rigid video‐stylet vs. conventional lightwand intubation in cervical spine‐immobilised patients

“…Yet contrary to our hypothesis, the initial intubation success rate was similar with the two devices. One possibility is that in fact, the trachea is relatively easy to intubate in patients with cervical immobilisation; direct laryngoscope success rates are as high as 80% . Also, our study participants were probably very experienced with the lightwand: one study reported a success rate as high as 96% in patients with a semi‐hard cervical collar .…”