Compare the Efficacy of Different Laryngeal Mask Size Selection Methods in General Anesthesia in Children

2000 ◽  
Author(s):  
Keyword(s):  
General Anesthesia ◽  
Laryngeal Mask ◽  
Selection Methods ◽  
Size Selection ◽  
Mask Size

Laryngeal mask size selection and the sixth LMA

1995 ◽  
Vol 7 (3) ◽  
pp. 265-266 ◽  
Author(s):  
Joseph R. Brimacombe ◽  
Alison Berry
Keyword(s):  
Laryngeal Mask ◽  
Size Selection ◽  
Mask Size

scholarly journals Correlation and variation of cuff inflating volumes and pressures in different adult models of laryngeal mask airway: a prospective randomized trial

2019 ◽  
Author(s):  
Narut Ruananukun ◽  
Jittiya Watcharotayangul ◽  
Suchaya Jeeranukosol ◽  
Rojnarin Komonhirun
Keyword(s):  
Clinical Trials ◽  
Laryngeal Mask Airway ◽  
General Anesthesia ◽  
Laryngeal Mask ◽  
Intracuff Pressure ◽  
Laryngeal Masks ◽  
Airway Complications ◽  
Soft Seal ◽  
Mask Size ◽  
Clinical Trials Registry

Abstract Background : Hyperinflation of laryngeal mask cuffs may carry the risk of airway complications. The manufacturer recommends inflating cuff until the intracuff pressure reaches 60 cmH 2 O, or inflate with the volume of air to not exceed the maximum recommended volume. We prospectively assessed the correlation of cuff inflating volumes and pressures, and the appropriated the cuff inflating volumes to generate an intracuff pressure of 60 cmH 2 O in the adult laryngeal masks from different manufacturers. Methods : Two groups of eighty patients requiring laryngeal mask size 3 and 4 during general anesthesia were randomized into 4 subgroups for each size of the laryngeal mask: Soft Seal ® (Portex ® ), AuraOnce TM (Ambu ® ), LMA-Classic TM (Teleflex ® ) and LMA-ProSeal TM (Teleflex ® ). After insertion, the cuff was inflated with 5-ml increments of air up to the maximum recommended volume. After each 5-ml intracuff pressure was measured, the volume of air that generated the intracuff pressure of 60 cmH 2 O was recorded . Results : Mean(SD) volume of air required to achieve the intracuff pressure of 60 cmH 2 O in Soft Seal ® , AuraOnce TM , LMA-Classic TM , LMA-ProSeal TM laryngeal mask size 3 were 11.80(1.88), 9.20(1.88), 8.95(1.50) and 13.50(2.48) ml, respectively, and these volumes in laryngeal mask size 4 were 14.45(4.12), 12.55(1.85), 11.30(1.95) and 18.20(3.47) ml, respectively. The maximum recommended volume resulted in high intracuff pressures (>60 cmH 2 O) in all laryngeal mask types and sizes studied. Conclusion : Pressure-volume curves of adult laryngeal masks are all in sigmoidal shape. Cuff designs and materials can effect pressure and volume correlation. Approximately half of the maximum recommended volume is required to achieve the intracuff pressure of 60 cmH 2 O except LMA-ProSeal TM which required two-thirds of the maximum recommended volume. Trial registration: Thai Clinical Trials Registry, TCTR20150602001, May 28, 2015

scholarly journals Correlation and variation of cuff inflating volumes and pressures in the adult laryngeal masks: a prospective randomized trial

2019 ◽  
Author(s):  
Narut Ruananukun ◽  
Jittiya Watcharotayangul ◽  
Suchaya Jeeranukosol ◽  
Rojnarin Komonhirun
Keyword(s):  
Clinical Trials ◽  
General Anesthesia ◽  
Randomized Trial ◽  
Laryngeal Mask ◽  
Intracuff Pressure ◽  
Laryngeal Masks ◽  
Airway Complications ◽  
Soft Seal ◽  
Mask Size ◽  
Clinical Trials Registry

Abstract Background: Hyperinflation of laryngeal mask cuffs may carry the risk of airway complications. The manufacturer recommends inflating cuff until the intracuff pressure reaches 60 cmH2O, or inflate with the volume of air to not exceed the maximum recommended volume. We prospectively assessed the correlation of cuff inflating volumes and pressures, and the appropriated the cuff inflating volumes to generate an intracuff pressure of 60 cmH2O in the adult laryngeal masks from different manufacturers. Methods: Two groups of eighty patients requiring laryngeal mask size 3 and 4 during general anesthesia were randomized into 4 subgroups for each size of the laryngeal mask: Soft Seal® (Portex®), AuraOnceTM (Ambu®), LMA-ClassicTM (Teleflex®) and LMA-ProSealTM (Teleflex®). After insertion, the cuff was inflated with 5-ml increments of air up to the maximum recommended volume. After each 5-ml intracuff pressure was measured, the volume of air that generated the intracuff pressure of 60 cmH2O was recorded. Results: Mean(SD) volume of air required to achieve the intracuff pressure of 60 cmH2O in Soft Seal®, AuraOnceTM, LMA-ClassicTM, LMA-ProSealTM laryngeal mask size 3 were 11.80(1.88), 9.20(1.88), 8.95(1.50) and 13.50(2.48) ml, respectively, and these volumes in laryngeal mask size 4 were 14.45(4.12), 12.55(1.85), 11.30(1.95) and 18.20(3.47) ml, respectively. The maximum recommended volume resulted in high intracuff pressures (>60 cmH2O) in all laryngeal mask types and sizes studied. Conclusion: Approximately half of the maximum recommended volume is required to achieve the intracuff pressure of 60 cmH2O except LMA-ProSealTM which required two-thirds of the maximum recommended volume. Trial Registration: Thai Clinical Trials Registry, TCTR20150602001, May 28, 2015. Keywords: Laryngeal mask, cuff inflating volume, intracuff pressure.

scholarly journals Correlation and variation of cuff inflating volumes and pressures in different adult models of laryngeal mask: a prospective randomized trial

2020 ◽  
Author(s):  
Narut Ruananukun ◽  
Jittiya Watcharotayangul ◽  
Suchaya Jeeranukosol ◽  
Rojnarin Komonhirun
Keyword(s):  
Clinical Trials ◽  
General Anesthesia ◽  
Randomized Trial ◽  
Laryngeal Mask ◽  
Intracuff Pressure ◽  
Laryngeal Masks ◽  
Airway Complications ◽  
Soft Seal ◽  
Mask Size ◽  
Clinical Trials Registry

Abstract Background: Hyperinflation of laryngeal mask cuffs may carry the risk of airway complications. The manufacturer recommends inflating cuff until the intracuff pressure reaches 60 cmH2O, or inflate with the volume of air to not exceed the maximum recommended volume. We prospectively assessed the correlation of cuff inflating volumes and pressures, and the appropriated the cuff inflating volumes to generate an intracuff pressure of 60 cmH2O in the adult laryngeal masks from different manufacturers. Methods: Two groups of eighty patients requiring laryngeal mask size 3 and 4 during general anesthesia were randomized into 4 subgroups for each size of the laryngeal mask: Soft Seal® (Portex®), AuraOnceTM (Ambu®), LMA-ClassicTM (Teleflex®) and LMA-ProSealTM (Teleflex®). After insertion, the cuff was inflated with 5-ml increments of air up to the maximum recommended volume. After each 5-ml intracuff pressure was measured, the volume of air that generated the intracuff pressure of 60 cmH2O was recorded. Results: Mean(SD) volume of air required to achieve the intracuff pressure of 60 cmH2O in Soft Seal®, AuraOnceTM, LMA-ClassicTM, LMA-ProSealTM laryngeal mask size 3 were 11.80(1.88), 9.20(1.88), 8.95(1.50) and 13.50(2.48) ml, respectively, and these volumes in laryngeal mask size 4 were 14.45(4.12), 12.55(1.85), 11.30(1.95) and 18.20(3.47) ml, respectively. The maximum recommended volume resulted in high intracuff pressures (>60 cmH2O) in all laryngeal mask types and sizes studied. Conclusion: Pressure-volume curves of adult laryngeal masks are all in sigmoidal shape. Cuff designs and materials can effect pressure and volume correlation. Approximately half of the maximum recommended volume is required to achieve the intracuff pressure of 60 cmH2O except LMA-ProSealTM which required two-thirds of the maximum recommended volume. Trial registration: Thai Clinical Trials Registry, TCTR20150602001, May 28, 2015

scholarly journals A prospective study on the incidence of sore throat after use of laryngeal mask airway during general anesthesia

2021 ◽  
pp. 102595
Author(s):  
kourosh Farazmehr ◽  
Mohamad Aryafar ◽  
Farshid Gholami ◽  
Giti Dehghanmanshadi ◽  
Seyed Sepideh Hosseini
Keyword(s):  
Laryngeal Mask Airway ◽  
Prospective Study ◽  
General Anesthesia ◽  
Sore Throat ◽  
Laryngeal Mask ◽  
A Prospective Study

To compare the frequency of postoperative sore throat with I-gel versus laryngeal mask airway in patients

2021 ◽  
Vol 15 (12) ◽  
pp. 3232-3235
Author(s):  
M. J. Ahmed Kamal ◽  
Baber Zaheer ◽  
Naveed Ahmed Durrani ◽  
Khaleel Ahmad ◽  
Sumara Tabassam ◽  
...  
Keyword(s):  
Laryngeal Mask Airway ◽  
General Anesthesia ◽  
Sore Throat ◽  
Laryngeal Mask ◽  
Supraglottic Airway ◽  
Postoperative Sore Throat ◽  
Significant Difference ◽  
Group A ◽  
Group Members ◽  
Group B

Background: In case of general anesthesia, airway maintenance along with least complications is the most important goal of team of anesthesiologists. In case of clinical practice, the laryngeal mask airway (LMA) devices have superiority in managing supraglottic airway. Recently i-gel airway has been introduced as supraglottic airway equipment (disposable). Aim: To make comparison between laryngeal mask and I-gel with respect to postoperative complication of sore throat in case of patients who were given general anesthesia. Study design: Randomized trial Setting: Anesthesia Department Study duration: 6 after synopsis approval in total 6months of duration Methods: Candidates were divided randomly divided into two groups. In case of members of group A, patients were given i-gel where as members of group B, disposable LMA was given. General anesthesia was administered according to the standardized protocols. A day after operation, candidates were check post operatively for 24 hours, for sore throat and information was documented on Performa. Results: The candidates mean age was 44.23±15.11years in case of i-gel group members whereas 46.10±15.56 years in case of LMA group. In case of i-gel group, there were about twenty five males members and thirty five were females members . In case of LMA group members, there were about twenty six males and thirty four female members . In present case research, sore throat postoperatively was seen in case of 17(14.2%) cases, i.e. 4 (6.7%) in i-gel group while 13(21.7%) in case of LMA group. The significant difference was witnessed between members of both groups (p<0.05). Conclusion: Thus i-gel is better than LMA for general anesthesia as it has fewer chances of side effects like postoperative sore throat. Keywords: Postoperative sore throat, I-gel, laryngeal mask airway, general anesthesia

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