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CLINICAL INVESTIGATION
Year : 2012  |  Volume : 56  |  Issue : 1  |  Page : 44-48

Size 2.5 ProSealTM LMA: Is it associated with increased attempts at insertion?


Department of Anaesthesiology, Pain and Perioperative Medicine, Sir Ganga Ram Hospital, New Delhi, India

Correspondence Address:
Aparna Sinha
Department of Anaesthesiology, Pain and Perioperative Medicine, Sir Ganga Ram Hospital, Old Rajinder Nagar, New Delhi 110 060
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5049.93343

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Background: This randomized controlled study evaluated the success rate of insertion and the associated oropharyngeal morbidity for sizes 1.5,2 and 2.5 of ProSeal TM laryngeal mask airway (PLMA) using an alternative digital technique (D) with conventional technique using the introducer tool (IT) technique. Methods: After approval from the hospital ethics committee, 250 healthy children, 6-months to 10 years of age, undergoing elective sub-umbilical surgeries, were included and randomly allocated to D and IT groups for PLMA insertion. The standard anaesthesia protocol was followed. The primary outcomes were success rate of insertion at first attempt and blood on device on removal and the secondary outcomes were oropharyngeal leak pressure and gastric tube placement. Results: The success rate of PLMA insertion at first attempt for sizes 1.5 and 2 did not differ between the two groups. However, for size 2.5, it was significantly lower than that for the other two sizes in both groups. The incidence of blood on device was higher with the 2.5 airway in both groups, reaching statistical significance only in group D. Other parameters did not differ between the two groups. Conclusion: We conclude that size 2.5 PLMA is associated with a lower success rate of insertion and a higher incidence of blood on device using both techniques. Insertion of PLMA sizes 1.5 and 2 by an alternative digital technique is comparable to the IT technique.


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