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Minerva Pediatrica 2020 April;72(2):89-94

DOI: 10.23736/S0026-4946.19.05277-0

Copyright © 2019 EDIZIONI MINERVA MEDICA

lingua: Inglese

A study on cuff pressure of laryngeal mask for airway management of child patients undergoing operation

Guangzhu CHEN 1 , Baowen SUN 1, Qi LIN 1, Yang LIU 2

1 Department of Anesthesiology, The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar, China; 2 Department of Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China



BACKGROUND: To investigate the cuff pressure of laryngeal mask for airway management of child patients undergoing operations.
METHODS: One hundred thirty-eight children who underwent general anesthesia in our hospital from June 2014 to May 2017 were enrolled, 46 children from June 2014 to September 2014 were selected as group A (20 cmH2O pressure group). 46 patients from October 2014 to January 2015 were selected as group B (40 cmH2O pressure group), and 46 patients from February 2015 to May 2015 were selected as group C (60 cmH2O pressure group). The pressure of all child patients was adjusted to the appointed pressure by using cuff pressure gauge. The operation situation, insertion of laryngeal mask, oropharyngeal leakage pressure(OLP), airway peak pressure(Ppeak), difference value of exhaled tidal volume(∆VT) and adverse reactions of the child patients from three groups were compared.
RESULTS: The differences in anesthesia time, recovery time, insertion time of laryngeal mask, removal time of laryngeal mask, operation duration and Ppeak showed no statistical significance (P>0.05); the successful rates of first insertion of laryngeal mask of group A, group B and group C were 89.13%, 100.00% and 93.47%, respectively. The OLPs of Group B and C were higher than that of Group A, and that of Group C was higher than Group B. ∆VT of Group B and C were lower than that of Group A, and that of Group B was lower than that of Group C. The total incidence rates of adverse reactions of three groups were 39.11%, 15.21% and 28.23%, respectively.
CONCLUSIONS: The optimum cuff pressure of laryngeal mask is 40 cmH2O for child patients during the airway management, which can effectively increase OLP, decrease ∆VT and incidence rate of adverse reactions, worthy of further recommendation and application in clinical practices.


KEY WORDS: Laryngeal mask; Airway management; Child

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