Comparative Evaluation Of Hemodynamic Changes During Insertion And Removal Of Laryngeal Mask Airway And Intubating Laryngeal Mask Airway

Pressure responses to intubation and laryngoscopy may have deleterious effects and measures to prevent these must be taken. A prospective randomized study of pressor responses following insertion and removal of laryngeal mask airway (LMAgroup I) and Intubating laryngeal mask airway (ILMAgroup II) were compared in two groups of 50 patients each of either sex belonging to the age group 20-70 years undergoing elective surgical procedures. Hemodynamic parameters were compared. Compared with the baseline there was no significant difference in MAP and HR during insertion and removal of LMA (p>0.05) but significant difference in rate pressure product (p<0.05). While in group II, during insertion/ intubation there was no significant difference in HR while significant increase in MAP and rate pressure product. During removal there was increase in HR, MAP and rate pressure product (p<0.05). It was concluded from the study that LMA may offer some advantages over ILMA in patients where minimal changes in hemodynamics are desirable like coronary artery disease and cerebrovascular disease.

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