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Year : 2015  |  Volume : 31  |  Issue : 3  |  Page : 324-328

Propofol requirement for insertion of I-gel versus laryngeal mask airway: A comparative dose finding study using Dixon's up-and-down method

Department of Anaesthesiology, Lokmanya Tilak Municipal Medical College and General Hospital, Mumbai, Maharashtra, India

Correspondence Address:
Aparna Ashay Nerurkar
D-104, Presidential Towers, LBS Road, Ghatkopar (W), Mumbai - 400 086, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-9185.161666

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Background and Aims: Propofol is the drug of choice when used as sole anesthetic agent for placement of supraglottic airway devices. We aimed to find and compare the propofol dose required for smooth first attempt insertion of I-gel versus the classic laryngeal mask airway (cLMA) using Dixon's up-and-down method. Material and Methods: Prospective randomized controlled trial (n-60) was planned. I-gel or cLMA was inserted 60 s after propofol injection whose dose was calculated based on previous patients response as per Dixon's up-and-down method. Propofol requirements for successful placement of devices was noted and compared. Difference between the groups was measured by ANOVA. A P < 0.05 was considered as statistically significant. Results: Significantly lower (P < 0.001) propofol dose was required for I-gel (2.02 ± 0.26 mg/kg) insertion than cLMA (2.70 ± 0.28 mg/kg). Conclusions: I-gel requires significantly lower dose of propofol for insertion when compared to cLMA.

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