LMA cuff pressure maintenance: A facile technique achieved with 10 ml syringe
- Author Abhisesh Shrestha
- Co-Author Rabindra Dhakal, Aayusha Dhakal, Shiva Pratik Shah
- DOI http://wwj
- Country : Nepal
- Subject : Health Sciences
Keywords : LMA, Syringe, Cuff pressure
Abstract
Laryngeal mask airway (LMA) has been routinely used for ophthalmic anaesthesia all around the world. The recommended LMA cuff pressure is < 60 cm H2O. This study uses a 10 ml syringe, the plunger of which rebounds against the cuff pressure of the LMA passively leading to adjustment of the pressure. The intracuff pressure was measured using a manometer after the plunger ceased moving. The age group of patient was 1.5 years to 14 years and size of LMA was 1.5 -2.5. The demographics were compared using mean and median. For LMA size 1.5 total number of cases analysed were 9 in which maximum pressure recorded was 28 and minimum was 14, mean was 21.44±5.45 and the median was 24. For LMA size 2.0 total number of cases done were 35 in which maximum pressure recorded was 40 and minimum were 14, mean was 12.34±6.73 and the median was 24. For LMA Size 2.5 total number of cases done were 17 in which maximum pressure recorded was 38 and minimum was 24, mean was 32.12±3.70 and the median was 32. After evaluating all the data we concluded that releasing of pressure using 10ml syringe, the plunger of which rebounds against the cuff pressure of the LMA passively leading to adjustment of the pressure.
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