Comparing the Ease of Insertion and Haemodynamic changes of Laryngeal Mask Airway and Combitube in Patients undergoing General Anaesthesia
Dr. Ajay Kumar Basra,
Village Burj Kandhari, P.O. Jassomaara, Teh. Banga, Distt. Shahid Bhagat Singh Nagar, Nawanshahar-144501, Punjab, India.
Introduction: Laryngeal Mask Airway (LMA) and combitube are used as an alternative to endotracheal tube for airway maintenance and in elective surgeries whenever required.
Aim: To compare the ease of insertion and haemodynamic changes of LMA and combitube in patients undergoing general anaesthesia.
Materials and Methods: The present prospective, comparative, randomised and observational study was conducted in Government Medical College and Rajindera Hospital, Patiala, Punjab, India (from December 2015 to November 2016) on 100 patients aged between 20 to 55 years of both sexes, belonging to the American Society of Anaesthesiologists (ASA) Grades I and II, scheduled for elective surgeries under general anaesthesia. The patients were randomly divided into two groups: Group L, LMA (n=50) and Group C, Combitube (n=50). The ease of insertion as per four grades, haemodynamic changes, changes in oxygen saturation (SpO2), End-tidal Carbon dioxide (EtCO2), and postoperative complications were recorded.
Results: The ease of insertion, SpO2 and EtCO2 in the Group L were statistically insignificant when compared to those in Group C (p>0.05). The increased haemodynamic changes (i.e., heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure) observed in Group C when compared to those in Group L showed statistical significance immediately after insertion, one minute after insertion and three minutes after insertion (p<0.05), but not at five 10, and 15 minutes after insertion. Incidence of trauma was statistically significant in Group C (p<0.05), but postoperative sore throat was not statistically significant in both the groups (p>0.05).
Conclusion: This study suggests that both combitube and LMA are equally effective in airway maintenance in elective surgeries.