Does prewarming of i‑gel improve insertion and ventilation in anaesthetised and paralysed patients? A prospective, randomised, control trial

Reddy, Aamuktha Malyadha and Varghese, Nita and Herekar, Basavaraj and Shenoy, Kailasnath Udupi (2019) Does prewarming of i‑gel improve insertion and ventilation in anaesthetised and paralysed patients? A prospective, randomised, control trial. Saudi Journal of Anaesthesia, 13 (3). pp. 215-221. ISSN 1658-354X

[img] PDF
00008134.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy

Abstract

Context: I‑gel are supraglottic airway devices with non‑inflatable gel‑like cuff that is believed to mould to body temperature, to seal the airway. Hence a pre‑warmed i‑gel may seal faster, provide better ventilation and superior leak pressure. Aims: To determine if pre‑warming i‑gel to 40°C improves insertion and efficacy of ventilation. Methods and Materials: A prospective, randomised, controlled trial was done on 64 patients requiring anaesthesia with muscle relaxation for short duration. For those in group W, i‑gel warmed to 40°C for 15 minutes before insertion was used, whereas for those in group C, i‑gel kept at room temperature (approximately 23°C) was used. The airway sealing pressure over time, number of attempts and time taken for a successful insertion were noted. Statistical Analysis: Mean sealing pressure between two groups was compared using independent sample t‑test. Repeated Measures ANOVA was used to analyse mean sealing pressure at 0, 15 and 30 min. P value ≤0.05 was considered statistically significant. Results: Sealing pressure improves over time in both the groups but the mean sealing pressure was higher in group C when compared to group W at all points of time, however this was clinically and statistically insignificant. Ease of insertion, time for successful insertion, insertion attempts, intra‑operative manoeuvres were all comparable between the groups with no adverse effects. Conclusions: Pre‑warming of i‑gel to 40°C does not improve the success rate of insertion or provide a higher sealing pressure in anaesthetised and paralysed patients when compared to i‑gel at room temperature.

Item Type: Article
Uncontrolled Keywords: Airway management; anaesthesia; general; heating; paralysis; sealing pressure.
Subjects: Medicine > KMC Manipal > Anaesthesiology
Depositing User: KMC Library
Date Deposited: 03 Jul 2020 09:27
Last Modified: 03 Jul 2020 09:27
URI: http://eprints.manipal.edu/id/eprint/155381

Actions (login required)

View Item View Item