Portal de Periódicos da CAPES

A randomized trial of three lubrication strategies on sore throat after insertion of the LMA® Classic™ supraglottic airway

2018; Springer Science+Business Media; Volume: 65; Issue: 7 Linguagem: Inglês

10.1007/s12630-018-1132-0

1496-8975

William P. S. McKay, Jurgen G. Maslany, Edward P. Schubert,

Tracheal and airway disorders

To the Editor,The laryngeal mask supraglottic airway (SGA) is commonly used in anesthesiology and is often lubricated for easy insertion.We studied sore throat (primary outcome), cough, and laryngospasm after insertion of the LMAÒ Classic TM (Teleflex Inc.; Morrisville, NC, USA) comparing three lubricating strategies: water-soluble medical lubricant (M) (Muko TM ; Source Medical, Mississauga ON, Canada) or 2% lidocaine jelly (L) (Lidodan TM ; Odan Laboratories, Montreal QC, Canada) vs no lubricant control (C).After institutional ethical approval, A consenting American Society of Anesthesiologists physical status I-II adult patients having elective surgery where an LMA was planned were recruited.Those with asthma, sore throat, cough, or allergy to lidocaine or Muko were excluded.Participants were randomly assigned after anesthesia induction by opening an opaque envelope, prepared by the research pharmacist, that contained a 3-mL syringe with Muko, lidocaine jelly, or nothing, with instructions to apply the lubricant to the entire inflatable surface of the LMA.Patients, investigators, and other caregivers were blinded to group assignment.The anesthesiologist was blinded to the lubricants, but not to lubricant vs. controls.