Abstract

ALVAREZ, Catalina María et al. The effectiveness of classic laryngeal mask airway and supreme mask airway sealing pressure when applied by trainee anaesthesiologists to adult patients undergoing ophthalmology surgery. Rev. colomb. anestesiol. [online]. 2009, vol.37, n.3, pp.212-224. ISSN 0120-3347.

Introduction: New anaesthetic techniques mean that devices must be developed which provide advantages in terms of sealing pressure and ventilation (without intubation´s sympathetic system component). This study involved a new extraglotic device which was inserted by personnel undergoing training in the use of anaesthesia during ophthalmology surgery. The main objective was to compare differences in airway sealing pressure in Latin-American adults undergoing outpatient ophthalmology surgery when two types of extraglotic devices were inserted by trainee medical personnel. The secondary objectives involved comparing insertion time, percentage amventilatory success rate and evidence of postoperative airway trauma. Methods: This was a randomised, double-blind, clinical trial which compared the effectiveness of the classic laryngeal mask airway (CLMA) to the laryngeal mask airway Supreme (LMA-S) to ensure airway sealing pressure in 97 ASA I-III adults having no difficult airway predictors who were undergoing programmed ophthalmology surgery. Results: LMA-S reached higher mean sealing pressures at the beginning (24.2 cm H₂O cf 19.2 cm H₂O) and at the end of the procedure (24.6 cm cf 20.4 cm H₂O) (p<0.05). Insertion times were similar and there was no difference in the incidence of postoperative adverse effects. Conclusions: LMA-S achieved a higher mean sealing pressure than CLMA. They had similar insertion times and adverse effect incidence when trainee medical inserted them into adult patients undergoing outpatient ophthalmology surgery.

Keywords : Laryngeal Masks; ambulatory surgery; meta-analysis; systematic; review.

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