title: Comparison of the Baska(®) mask with the single-use laryngeal mask airway in low-risk female patients undergoing ambulatory surgery.
abstract: We compared the Baska(®) mask with the single-use classic laryngeal mask airway (cLMA) in 150 females at low risk for difficult tracheal intubation in a randomised, controlled clinical trial. We found that median (IQR [range]) seal pressure was significantly higher with the Baska mask compared with the cLMA (40 (34-40 [16-40]) vs 22 (18-25 [14-40]) cmH2O, respectively, p < 0.001), indicating a better seal. In contrast, the first time success rate for insertion of the Baska mask was lower than that seen with the cLMA (52/71 (73%) vs 77/99 (98%), respectively, p < 0.001). There were no differences in overall device insertion success rates (78/79 (99%) vs 68/71 (96%), respectively, p = 0.54). The Baska mask proved more difficult to insert, requiring more insertion attempts, taking longer to insert and had higher median (IQR [range]) insertion difficulty scores (1.6 (0.8-2.2 [0.1-5.6]) vs 0.5 (0.3-1.4 [0.1-4.0]), respectively, p < 0.001). There was also an increased rate of minor blood staining of the Baska mask after removal, but there were no differences in other complication rates, such as laryngospasm, or in the severity of throat discomfort. In conclusion, in clinical situations where the seal with the glottic aperture takes priority over ease of insertion, the Baska mask may provide a useful alternative to the cLMA.
authors.affiliation: Department of Anaesthesia, Galway University Hospitals and National University of Ireland, Galway, Ireland.
authors.forename: V
authors.initials: V
authors.lastname: Alexiev
authors.forename: A
authors.initials: A
authors.lastname: Ochana
authors.forename: D
authors.initials: D
authors.lastname: Abdelrahman
authors.forename: J
authors.initials: J
authors.lastname: Coyne
authors.forename: J G
authors.initials: JG
authors.lastname: McDonnell
authors.forename: D P
authors.initials: DP
authors.lastname: O'Toole
authors.forename: P
authors.initials: P
authors.lastname: Neligan
authors.forename: J G
authors.initials: JG
authors.lastname: Laffey
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000399:Air Pressure; D000556:Ambulatory Surgical Procedures / Q000379:methods*; D000768:Anesthesia, General; D000769:Anesthesia, Inhalation; D001940:Breast / Q000601:surgery; D004209:Disposable Equipment; D005260:Female; D013509:Gynecologic Surgical Procedures; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D007442:Intubation, Intratracheal; D017214:Laryngeal Masks; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D012121:Respiration, Artificial; D018401:Sample Size; D016896:Treatment Outcome; D055815:Young Adult