Comparision of clinical performance of i-gel with laryngeal mask airway pro-seal in elective surgery in adults

Aim: The present study was performed to compare the clinical performance of i-gel and PLMA in terms of the efficacy and safety management in anaesthetized adult patients undergoing elective surgery.

Materials and Methods: 80 patients of either sex were randomized in two groups. Group I (n=40) for i-gel and Group P (n=40) for Proseal. After induction i-gel or Proseal was inserted. The cuff of PLMA inflated and pressure maintained at 60cmH₂O. Insertion time, ease and number of attempts at insertion, airway sealing pressure, airway sealing quality score (ASQS), fiberoptic assessment, ease and number of attempts at gastric tube placement and complications during insertion, maintenance and removal were noted. Statistical analysis was done using Statistical Package for Social Science (SPSS) 20, the sample size was calculated with 99% power (β error = 1%), 95% confidence(α error = 5%),  p < 0.05 was considered statistically significant.

 Results: Demographic data were comparable. Mean insertion time for i-gel (12.30± 1.018sec) was significantly lower than PLMA (13.82 ± 1.083sec):(p< 0.00), i-gel was easier to insert (p <0.010) and number of attempts were comparable (p <0.644). Airway sealing pressure (cmH₂O) was significantly lower in group-I (23.925±0.729 vs 29 ±0.751, p = 0.000). ASQS were comparable (p< 0.762). 37 (92.5%), 3(7.5%) and 30 (75%), 10 (25%) patients had fiberoptic score of 1/2 in i-gel and PLMA respectively (p < 0.034).  Gastric tube placement, haemodynamic parameters and complications were comparable.

 Conclusion: i-gel is an effective and safe alternative supraglottic airway device.