The clinical effectiveness of the streamlined liner of pharyngeal airway (SLIPA™) compared with the laryngeal mask airway ProSeal™ during general anesthesia

Abstract

BackgroundThe aim of this study was to compare the streamlined liner of the pharynx airway (SLIPA), a new supraglottic airway device (SGA), with the laryngeal mask airway ProSeal™ (PLMA) during general anesthesia.MethodsSixty patients were randomly allocated to two groups; a PLMA group (n = 30) or a SLIPA group (n = 30). Ease of use, first insertion success rate, hemodynamic responses to insertion, ventilatory efficiency and positioning confirmed by fiberoptic bronchoscopy were assessed. Lung mechanics data were collected with side stream spirometry at 10 minutes after insertion. We also compared the incidence of blood stain, incidence and severity of postoperative sore throat and other complications.ResultsFirst attempt success rates were 93.3% and 73.3%, and mean insertion time was 7.3 sec and 10.5 sec in PLMA and SLIPA. There was a significant rise in all of hemodynamic response from the pre-insertion value at one minute following insertion of SLIPA. But, insertion of PLMA was no significant rise in hemodynamic response. There was no statistically significant difference in the mean maximum sealing pressure, gas leakage, lung mechanics data, gastric distension, postoperative sore throat and other complication between the two groups. Blood stain were noted on the surface of the device in 40% (n = 12) in the SLIPA vs. 6.7% (n = 2) in the PLMA.ConclusionsThe SLIPA is a useful alternative to the PLMA and have comparable efficacy and complication rates. If we acquire the skill to use, SLIPA may be considered as primary SGA devices during surgery under general anesthesia.

Comparison of streamlined liner of the pharynx airway (SLIPA™) and laryngeal mask airway: a systematic review and meta‐analysis

“…Of the fourteen included randomised controlled trials , one study was a randomised crossover study . Two studies had been prospectively registered .…”

“…Two studies had been prospectively registered . The SLIPA was compared with the classic LMA in seven studies , with the ProSeal LMA in six , and with the SoftSeal LMA in one . Three studies compared the SLIPA with two other types of airway device , namely: with the classic LMA and the i‐gel ™ ; with the classic LMA and a tracheal tube ; and with the ProSeal LMA and a tracheal tube .…”

“…Three studies compared the SLIPA with two other types of airway device , namely: with the classic LMA and the i‐gel ™ ; with the classic LMA and a tracheal tube ; and with the ProSeal LMA and a tracheal tube . Selection of the size of SLIPA was based on patients' height in four studies and thyroid cartilage width in eight . In two studies , novice users inserted the devices: these were either medical students or residents in the department of anaesthesiology .…”

SLIPA™ may be more useful than other LMADs for difficult airway management

“…The heel of the SLIPA TM is placed in the nasopharynx, providing an additional seal that increases leak pressure. Previous studies have demonstrated that the leak pressure of SLIPA TM (reported means were 27, 1 24, 4 and 30 cm H 2 O) 5 is greater than that of other LMADs (23 cm H 2 O). 2 In conclusion, we believe that SLIPA TM may be more effective than LMAD in difficult airway management, especially in patients whose pharyngeal space is narrow and in whom the PIP is high.…”

Evaluation of Head and Neck Position on Oropharyngeal Leak Pressure with Baska Mask and Streamlined Liner of Pharyngeal Airway (SLIPA<sup>TM</sup>): Arandomized Clinical Trial

“…The streamlined liner of the pharynx airway (SLIPA TM ) is a non-cuffed single-use SGA, its shape is designed to stick to the pharynx and palate [2,3]. The shape of SLIPA TM has a hollow body which allows it to fit in the patient's pharynx, sealing it without the use of an inflatable cuff.…”