Comparing the ease of insertion and pressor responses of laryngeal mask airway and combitube in patients undergoing general anaesthesia

Authors:Saraswathi.N, Rachana N. D, Sampathila Padmanabha
Int J Biol Med Res. 2014; 5(3): 4213-4220  |  PDF File

Abstract

ABSTRACT COMPARING THE EASE OF INSERTION AND PRESSOR RESPONSES OF LARYNGEAL MASK AIRWAY AND COMBITUBE IN PATIENTS UNDERGOING GENERAL ANAESTHESIA. Objectives: To determine and compare the insertion conditions and pressor responses of two airway devices laryngeal mask airway and combitube during elective anaesthetic procedures. Methodology: 60 patients of age between 18-55 years, belonging to ASA grade I and II, scheduled for elective surgeries under general anaesthesia were included in the study. All patients were allocated randomly by envelope method into two groups of 30 each, Group-L and Group-C.For patients in group L- airway was secured with laryngeal mask airway.Patients in group C- airway was secured with combitube.Heart rate, systolic and diastolic blood pressure were recorded just before intubation and subsequently at 1, 2, 3, 5, 7, 10 & 15 minutes. Ease of insertion was assessed as per four grades.( Grade 1, 2, 3 and 4 ) Results : Insertion conditions were better with LMA when compared to combitube.(p =0.014). Mean heart rate of LMA group was less at 1, 2, 3, 5, 7 minutes compared to combitube group.(p=significant ) Mean systolic blood pressure of LMA group is significantly less at 1, 2, 3, 7 ,10 minutes than that of combitube group.(p=significant ) Mean diastolic blood pressure of LMA group is significantly less at 1, 2, 3 minutes compared to combitube group (p=significant ). Conclusion: In this study we concluded that : The insertion conditions (ease of insertion ) were better and the associated presssor responses were less with LMA than with combitube . Based on our conclusion, we can say that LMA is a better alternative device when compared to combitube in maintaining an intact airway under general anaesthesia.