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Supraglottic Airway Device (supraglottic + airway_device)

Distribution by Scientific Domains
Medical Sciences100%

Kinds of Supraglottic Airway Device

  • new supraglottic airway device
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    Selected Abstracts

    Randomized comparison of the SLIPA (Streamlined Liner of the Pharynx Airway) and the SS-LM (Soft Seal Laryngeal Mask) by medical students

    EMERGENCY MEDICINE AUSTRALASIA, Issue 5-6 2006
    Cindy Hein
    Abstract Objective:, The aim of the study was to compare the Streamlined Liner of the Pharynx Airway (SLIPA; Hudson RCI), a new supraglottic airway device, with the Soft Seal Laryngeal Mask (SS-LM; Portex) when used by novices. Methods:, Thirty-six medical students with no previous airway experience, received manikin training in the use of the SLIPA and the SS-LM. Once proficient, the students inserted each device in randomized sequence, in two separate patients in the operating theatre. Only two insertion attempts per patient were allowed. Students were assessed in terms of: device preference; success or failure; success at first attempt and time to ventilation. Results:, Sixty-seven per cent of the students preferred to use the SLIPA (95% confidence interval 49,81%). The SLIPA was successfully inserted (one or two attempts) in 94% of patients (34/36) and the SS-LM in 89% (32/36) (P = 0.39). First attempt success rates were 83% (30/36) and 67% (24/36) in the SLIPA and SS-LM, respectively (P = 0.10). Median time to ventilation was shorter with the SLIPA (40.6 s) than with the SS-LM (66.9 s) when it was the first device used (P = 0.004), but times were similar when inserting the second device (43.8 s vs 42.9 s) (P = 0.75). Conclusions:, In the present study novice users demonstrated high success rates with both devices. The SLIPA group achieved shorter times to ventilation when it was the first device they inserted, which might prove to be of clinical significance, particularly in resuscitation attempts. Although the Laryngeal Mask has gained wide recognition for use by both novice users and as a rescue airway in failed intubation, the data presented here suggest that the SLIPA might also prove useful in these areas. [source]

    A new supraglottic airway device: LMA-SupremeÔ, comparison with LMA-ProsealÔ

    ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 7 2009
    T. HOSTEN
    Background and objective: The LMA-SupremeÔ (S-LMAÔ) is a new supraglottic airway device that presents combined features of flexibility, curved structure and single use and a different cuff structure. The purpose of this study was to compare the oropharyngeal leak pressures (OLP) of LMA-ProsealÔ (P-LMAÔ) and S-LMAÔ. Methods: Sixty adult patients were prospectively and randomly allocated to undergo insertion of P-LMAÔ (n=30) or S-LMAÔ (n=30). The cuffs were inflated until the intracuff pressure (ICP) reached 60 cm H2O. Orogastric leak pressures, insertion times, first attempt success rates, fiberoptical assessment of position, cuff pressures, orogastric tube (OGT) placement and OGT insertion times were compared. Unblinded observers collected intraoperative data and blinded observers collected post-operative data. Results: The first insertion attempts and time taken to provide an effective airway were similar between the groups. Two patients (P-LMAÔ, n=1; S-LMAÔ, n=1) were intubated due to excessive oropharyngeal leak and in one patient (P-LMAÔ, n=1) due to failed OGT placement. OLPs were similar (P-LMAÔ; 26.9±6.6 S-LMAÔ; 26.1±5.2). ICP increased significantly in the P-LMAÔ at the 30 and 60 min during anesthesia (P-LMAÔ; 80.1±12.8, 92.9±14.4, S-LMAÔ; 68.3±10.9, 73.7±15.6). OGT placement was successful in all patients in the S-LMAÔ, but failed in five patients in the P-LMAÔ (P=0.02). Fiberoptically determined anatomic position was better with the P-LMAÔ (P=0.03). Conclusion: Our findings suggest that S-LMAÔ had leak pressures similar to the P-LMAÔ, and this new airway device proved to be successful during both spontaneous and positive pressure ventilation. [source]

    The I-gel®, a single-use supraglottic airway device with a non-inflatable cuff and an esophageal vent: an observational study in children

    ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 3 2009
    L. BEYLACQ
    Background: The I-gel® is a new single-use supraglottic airway device with a non-inflatable cuff. It is composed of a thermoplastic elastomer and a soft gel-like cuff that adapts to the hypopharyngeal anatomy. Like the LMA-ProSeal, it has an airway tube and a gastric drain tube. Little is known about its efficiency in pediatric anesthesia. Methods: Fifty children above 30 kg, ASA I,II, undergoing a short-duration surgery were included in this prospective, observational study. We evaluated ease in inserting the I-gel®, seal pressure, gastric leak, complications during insertion and removal, ease in inserting the gastric tube and ventilatory parameters during positive pressure ventilation. Results: All devices were inserted at the first attempt. The mean seal pressure was 25 cmH2O. There was no gastric inflation and gastric tube insertion was achieved in all cases. The results appear similar to those in a previous study concerning laryngeal mask airway in terms of leak pressure and complication rates. Conclusion: Because the I-gel® has a very good insertion success rate and very few complications, it seems to be an efficient and safe device for pediatric airway management. [source]

    Insertion characteristics, sealing pressure and fiberoptic positioning of CobraPLA in children

    PEDIATRIC ANESTHESIA, Issue 10 2007
    MAURIZIO PASSARIELLO MD
    Summary Background:, The CobraPLATM is a new supraglottic airway device designed for the use in spontaneously breathing and mechanically ventilated patients. In adults it has been found as effective as the LMA, but with better sealing qualities. The aim of the present study was to evaluate fit and sealing characteristics of CobraPLA size 1.5 and 2 in mechanically ventilated children. Methods:, Forty children, ASA I/II, aged 1,10 years, weighing 10,35 kg were scheduled for minor surgical procedures. The number of attempts for insertion and fiberoptic positioning of the CobraPLA was assessed. After muscle relaxation had been achieved, airway sealing pressure was measured by gradually increasing maximum inspiratory pressure to a maximum of 30 cmH2O. Results:, Insertion of CobraPLA was successful at the first attempt in 90% of patients. The vocal cords were visualized in 90% of patients (grade 0: 2.5%, grade 1: 7.5%, grade 2: 30%, grade 3: 15%, grade 4: 45%). Median sealing pressure was 20.0 ± 6.0 cmH2O. In 21% of patients gastric insufflation was observed at a peak inspiratory pressure of 20 cmH2O or below. Conclusions:, The CobraPLA was found to have easy insertion characteristics and good anatomical fitting in children between 10 and 35 kg. If positive pressure ventilation with CobraPLA size 1.5 and 2.0 is required, peak inspiratory pressure should be kept below the leak pressure and the abdomen closely monitored for signs of gastric insufflation. [source]

    In vitro study of magnetic resonance imaging artefacts of six supraglottic airway devices

    ANAESTHESIA, Issue 6 2010
    M. Zaballos
    Summary We investigated the artefacts created during magnetic resonance imaging by five different laryngeal mask airways: the Classic (cLMAÔ); the LMA ProSealÔ; the LMA UniqueÔ; the Ambu® Disposable Laryngeal Mask; the LMA SupremeÔ; and one other supraglottic airway device, the i-gel supraglottic airway. The devices were placed on top of and inside a phantom simulator to resemble the position in vivo. The artefacts with the cLMA, Unique and Supreme were similar and related to ferromagnetic material in the pilot balloon valve. Artefacts were more prominent with the ProSeal. There were no artefacts with the Ambu Disposable Laryngeal Mask or the i-gel. [source]

    High frequency jet ventilation through a supraglottic airway device: a case series of patients undergoing extra-corporeal shock wave lithotripsy

    ANAESTHESIA, Issue 12 2009
    D. J. Canty
    Summary High frequency jet ventilation has been shown to be beneficial during extra-corporeal shock wave lithotripsy as it reduces urinary calculus movement which increases lithotripsy efficiency with better utilisation of shockwave energy and less patient exposure to tissue trauma. In all reports, sub-glottic high frequency jet ventilation was delivered through a tracheal tube or a jet catheter requiring paralysis and direct laryngoscopy. In this study, a simple method using supraglottic jet ventilation through a laryngeal mask attached to a circle absorber anaesthetic breathing system is described. The technique avoids the need for dense neuromuscular blockade for laryngoscopy and the potential complications associated with sub-glottic instrumentation and sub-glottic jet ventilation. The technique was successfully employed in a series of patients undergoing lithotripsy under general anaesthesia as an outpatient procedure. [source]

    Prehospital airway management on rescue helicopters in the United Kingdom

    ANAESTHESIA, Issue 6 2009
    M. Schmid
    Summary Adequate equipment is one prerequisite for advanced, out of hospital, airway management. There are no data on current availability of airway equipment on UK rescue helicopters. An internet search revealed all UK rescue helicopters, and a questionnaire was sent to the bases asking for available airway management items. We identified 27 helicopter bases and 26 (96%) sent the questionnaire back. Twenty-four bases (92%) had at least one supraglottic airway device; 16 (62%) helicopters had material for establishing a surgical airway (e.g. a cricothyroidotomy set); 88% of the helicopters had CO2 detection; 25 (96%) helicopters carried automatic ventilators; among these, four (15%) had sophisticated ventilators and seven (27%) helicopters carried special face masks suitable for non-invasive ventilation. We found a wide variation in the advanced airway management equipment that was carried routinely on air ambulances. Current guidelines for airway management are not met by all UK air ambulances. [source]

    In vitro study of magnetic resonance imaging artefacts of six supraglottic airway devices

    ANAESTHESIA, Issue 6 2010
    M. Zaballos
    Summary We investigated the artefacts created during magnetic resonance imaging by five different laryngeal mask airways: the Classic (cLMAÔ); the LMA ProSealÔ; the LMA UniqueÔ; the Ambu® Disposable Laryngeal Mask; the LMA SupremeÔ; and one other supraglottic airway device, the i-gel supraglottic airway. The devices were placed on top of and inside a phantom simulator to resemble the position in vivo. The artefacts with the cLMA, Unique and Supreme were similar and related to ferromagnetic material in the pilot balloon valve. Artefacts were more prominent with the ProSeal. There were no artefacts with the Ambu Disposable Laryngeal Mask or the i-gel. [source]

    Evaluation of the LMA SupremeÔ in 100 non-paralysed patients,

    ANAESTHESIA, Issue 5 2009
    T. M. Cook
    Summary We studied the LMA SupremeÔ in 100 elective, anaesthetised, healthy patients assessing: ease of use, airway quality, anatomical and functional positioning, airway leak and complications. Insertion was successful on first, second or third attempt in 90, nine and one patient respectively. Thirty manipulations were required in 22 patients to achieve a clear airway. Median [interquartile (range)] insertion time was 18 [10,25 (5,120)] s. During ventilation, an expired tidal volume of 7 ml.kg,1 was achieved in all patients. Median [interquartile (range)] airway leak pressure was 24 [20,28 (13,40)] cmH2O. On fibreoptic examination via the device, vocal cords were visible in 83 patients (85%). During maintenance, five patients (5%) required 13 airway manipulations. There was one episode of minor regurgitation, without aspiration. Other complications and patient side-effects were mild and few. The LMA Supreme is easily and rapidly inserted, providing a reliable airway and good airway seal. Further studies are indicated to assess safety and performance compared to other supraglottic airway devices. [source]