Primary Objective: To compare the ease of insertion of LMA Supreme vs I-Gel in short surgical procedures which will be assessed by Number of attempts taken to insert the Supraglottic airway device (SAD). Secondary Objectives: 1) To compare LMA Supreme vs I-Gel the following parameters, 2) Oropharyngeal Leak Pressure, 3) Haemodynamic responses, 4) Adverse effects: Visible blood on device, Lip or dental injury, Laryngospasm, Bronchospasm, Post extubation cough, Gagging, Sore throat, Dysphagia, Dysphonia, Hoarseness of voice, Lip or tongue swelling, Tongue numbness. Materials and Methods: Total 60 patients of age between 18 to 60 years with ASA grade I and II were selected who underwent short elective procedures under general anaesthesia with spontaneous ventilation in a tertiary care institute after approval from institutional ethical committee with written informed consent. Patients were randomized to 2 groups (Group I and Group S)to compare LMA Supreme and I-gelInj. Ranitidine 2mg/kg and Ondansetron 0.1 mg/kg were given intravenously. Premedication with Inj. Glycopyrrolate 0.004 mg/kg, Inj. Midazolam 0.03mg/kg and Inj. Fentanyl 2mcg/kg. Patient was induced with titrated dose of Inj. Propofol (2 mg/kg). LMA Supreme or I-Gel-Each device was inserted by the same anaesthesiologist. In both groups, successful airway insertion was assessed. Number of attempts to establish adequate ventilation was noted. Patients hemodynamic parameters like Heart rate, systolic and diastolic blood pressure, EtCO2, SpO2 was noted before induction (baseline), after induction, at insertion and then every minute till 10 mins and then every 5 min till 20 min after insertion of the device and also postoperative complications were assessed till 24 hrs. Difference between the two means was tested using student t test & p value <0.05 was considered significant. Results: Chi square test and Independent student t test were used to compare the difference in between two groups. Demographic profile and hemodyamic parameters did not vary significantly in both groups and was comparable.The mean oropharyngeal leak pressure in Group I and Group S was 25.21 ± 2.73 cmH2O and 22.93 ± 1.96 cmH2O respectively and this difference was statistically significant (P<0.05).Among the Group I, about 93.33% needed single attempt, 6.67% needed double attempts, none needed 3 or more than 3 attempts. Among the Group S, 83.33% needed single attempt, 13.33% needed double attempt, none required 3 attempts and 3.33% needed more than 3 attempts. I-gel has a better first insertion success rate but the difference was statistically not significant. (P>0.05). Conclusion: Both the devices are comparable in terms of ease of insertion in anesthetized spontaneously breathing patients in short surgical procedures. I-gel can be preferred over LMA Supreme because of its better oropharyngeal leak pressure and lesser postoperative complications.
