Vol. 5, Issue 4 (2016)

Material and Methods: A prospective, randomized trial was performed on 40 ASA I-IIrnpatients slated for elective laparoscopic abdominal operations. This researchrnwas performed in the Department of Anaesthesiology, Maharajah’s Institute ofrnMedical Sciences, Nellimarla, Andhra Pradesh, India, from February 2015 tornJanuary 2016. Patients were randomly assigned to two groups (n=20 each): GrouprnP (Proseal LMA) and Group E (Endotracheal Tube). Standardized anestheticrnmethods were adhered to in both groups. Haemodynamic parameters—heart ratern(HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and meanrnarterial pressure (MAP)—were documented at baseline, immediately followingrninsertion, and at 1, 3, 5, and 10 minutes’ post-insertion, in addition to afterrnpneumoperitoneum and at extubation/removal.

Results: Group E had significantly higher HR and BP after the airway device wasrninserted than Group P (p<0.05). During the course of the operation, Group Prnpatients' hemodynamic responses were more consistent. Group P showed arnstatistically significant decrease (p=0.03) in the increase of MAP followingrnpneumoperitoneum. The increase in heart rate and blood pressure in Group E wasrnsignificantly higher than in Group P during extubation/removal (p<0.01). Inrnneither group were airway problems reported.

Conclusion: For laparoscopic procedures, prosthetic tracheostomy tubes (LMAs) offerrna more stable hemodynamic profile than endotracheal tubes. It guaranteesrnadequate ventilation while avoiding cardiovascular stress, making it arnpotentially appropriate alternative to ETT in certain circumstances.