A prospective, randomized, controlled trial study of comparison of two techniques for laryngeal mask airway insertion

Abstract

Introduction: In this study we compared the use of an intravenous propofol/propofol auto-co-induction technique to propofol/midazolam for laryngeal mask insertion. We also studied the incidence of undesirable effects in relation to LMA insertion.

Methodology: In this prospective, randomized, controlled trial study, 60 adults belonging to ASA class 1 and 2 were randomly divided in three groups; Group1- Saline-propofol; Group 2- Propofol-midazolam; Group 3- Propofol-propofol. The induction characteristics reviewing various parameters like the induction dose required, hemodynamic changes and the cost of induction were observed. Hemodynamic variables including heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) were recorded at 2, 4 and 6 minutes post induction.