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  • Title: Comparison of videolaryngoscope-guided versus standard digital insertion techniques of the ProSeal™ laryngeal mask airway: a prospective randomized study.
    Author: Ozgul U, Erdil FA, Erdogan MA, Begec Z, Colak C, Yucel A, Durmus M.
    Journal: BMC Anesthesiol; 2019 Dec 30; 19(1):244. PubMed ID: 31888511.
    Abstract:
    BACKGROUND: This study were designed to investigate the usefulness of the videolaryngoscope-guided insertion technique compared with the standard digital technique for the insertion success rate and insertion conditions of the Proseal™ laryngeal mask airway (PLMA). METHODS: Prospective, one hundred and nineteen patients (ASA I-II, aged 18-65 yr) were randomly divided for PLMA insertion using the videolaryngoscope-guided technique or the standard digital technique. The PLMA was inserted according to the manufacturer's instructions in the standard digital technique group. The videolaryngoscope-guided technique was performed a C-MAC® videolaryngoscope with D-Blade, under gentle videolaryngoscope guidance, the epiglottis was lifted, and the PLMA was advanced until the tip of the distal cuff reached the oesophagus inlet. The number of insertion attempts, insertion time, oropharyngeal leak pressure, leak volume, fiberoptic bronchoscopic view, peak inspiratory pressure, ease of gastric tube placement, hemodynamic changes, visible blood on PLMA and postoperative airway morbidity were recorded. RESULTS: The first-attempt success rate (the primary outcome) was higher in the videolaryngoscope-guided technique than in the standard digital technique (p = 0.029). The effect size values with 95% confidence interval were 0.19 (0.01-0.36) for the first and second attempts, 0.09 (- 0.08-0.27) for the first and third attempts, and not computed for the second and third attempts by the groups, respectively. CONCLUSION: Videolaryngoscope-guided insertion technique can be a help in case of difficult positioning of a PLMA and can improve the PLMA performance in some conditions. We suggest that the videolaryngoscope-guided technique may be a useful technique if the digital technique fails. TRIAL REGISTRATION: ClinicalTrials.gov NCT03852589 date of registration: February 22th 2019.
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