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Comparisons of clinical performance of Guardian laryngeal mask with laryngeal mask airway ProSeal.

ABSTRACT: The Guardian Laryngeal Mask Airway (G-LMA) is a new silicone-based single-use extraglottic device with the drainage port and a cuff pilot valve with pressure indicator. The aim of this study is to compare the clinical performance of this laryngeal mask airway with ProSeal laryngeal mask airway (P-LMA).In this prospective randomized study, we included adult patients with ASA grading I and II scheduled for elective surgery requiring supine position under total intravenous anesthesia. The patients were randomly allocated to two groups, 40 in each. G-LMA and P-LMA were used in groups G and P respectively. The cuff of each device was air inflated to 60 cmH2O. The primary outcome was to compare the airway sealing pressure and the secondary outcome was to compare the efficacy and safety of these two devices with respect to insertion success, insertion time, ease of insertion, volume of air for cuff inflation to 60 cmH2O, intracuff pressure measurement, gastric tube insertion attempt, gastric tube insertion time, Fiberoptic laryngeal view, and postoperative pharyngolaryngeal morbidity.The airway sealing pressure at 60 cmH2O cuff pressure was significantly greater in G-LMA than P-LMA (p?=?0.04).The first successful attempt of both groups were comparable (p?=?1.000). Insertion time was significantly shorter in G-LMA than P-LMA (p?

SUBMITTER: Pajiyar AK

PROVIDER: S-EPMC4429672 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Comparisons of clinical performance of Guardian laryngeal mask with laryngeal mask airway ProSeal.

Pajiyar Ajay Kumar AK Wen Zhiting Z Wang Haiyun H Ma Lin L Miao Lumin L Wang Guolin G

BMC anesthesiology 20150501

<h4>Background</h4>The Guardian Laryngeal Mask Airway (G-LMA) is a new silicone-based single-use extraglottic device with the drainage port and a cuff pilot valve with pressure indicator. The aim of this study is to compare the clinical performance of this laryngeal mask airway with ProSeal laryngeal mask airway (P-LMA).<h4>Methods</h4>In this prospective randomized study, we included adult patients with ASA grading I and II scheduled for elective surgery requiring supine position under total in ...[more]

PMID: 25929558

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Project description:BackgroundProSeal (PLMA) and Supreme (SLMA) laryngeal mask airways are effective ventilator devices with distinctive designs that may require different anaesthetics for insertion. Sevoflurane induction provides acceptable conditions for laryngeal mask insertion, and remifentanil significantly decreases the minimum alveolar concentration of sevoflurane required for that insertion. The study aimed to evaluate the optimal end-tidal (ET) sevoflurane concentration for successful insertion of PLMA versus SLMA in patients receiving a remifentanil infusion without a neuromuscular blocking agent.MethodsAltogether, 45 patients ASA (American Society Anaesthesiologists) physical status I-II, aged 18-60 years were scheduled for elective ambulatory surgery. Exclusion criteria were a difficult airway, recent respiratory infection, reactive airway, obstructive sleep apnoea syndrome, gastric aspiration's risk factors, pregnancy, and lactation. Patients were randomly allocated to receive the SLMA or the PLMA. Sevoflurane induction with co-administration of remifentanil was performed at an effect-site concentration of 4 ng mL- 1. ET50 was calculated with a modified Dixon's up-and-down method (starting at 2.5% in steps of 0.5%). Predetermined sevoflurane concentration was kept constant during the 10 min before LMA insertion. Patient's response to LMA insertion was classified as "movement" or "no movement". Sevoflurane ET50 was determined as the midpoint concentration of all the independent pairs that manifested crossover from "movement" to "no movement".ResultsThe ET50 sevoflurane concentration co-administered with remifentanil required for PLMA insertion was 1.20 ± 0.41% (95% confidence interval 0.76 to 1.63%). For SLMA insertion, it was 0.55 ± 0.38% (95% confidence interval 0.14 to 0.95%) (p = 0.019).ConclusionsThe end-tidal sevoflurane concentration with co-administered remifentanil required to allow insertion of the SLMA was 54% lower than that needed for inserting the PLMA.Trial registrationClinicaltrials.gov identifier: NCT03003377. Retrospectively registered. Date of registration: December 28, 2016.

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Comparisons of clinical performance of Guardian laryngeal mask with laryngeal mask airway ProSeal.

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Comparisons of clinical performance of Guardian laryngeal mask with laryngeal mask airway ProSeal.

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