title: An evaluation of the Laryngeal Tube during general anesthesia using mechanical ventilation.
abstract: The Laryngeal Tube is a new supraglottic ventilatory device for airway management. It has been developed to secure a patent airway during either spontaneous or mechanical ventilation. In this study, we sought to determine the effectiveness of the Laryngeal Tube for primary airway management during routine surgery with mechanical ventilation. One-hundred-seventy-five subjects classified as ASA physical status I and II, scheduled for elective surgery, were included in the study. After the induction of general anesthesia and insertion of a Size 4 Laryngeal Tube, measurements of oxygen saturation, end-tidal CO(2) and isoflurane concentration, and breath-by-breath spirometry data were obtained every 5 min throughout surgery. The lungs were ventilated with volume-controlled mechanical ventilation. The number of attempts taken to insert the Laryngeal Tube and the insertion time were recorded. In 96.6% of patients, it was possible to maintain oxygenation, ventilation, and respiratory mechanics by using mechanical ventilation throughout the surgical procedure. The results of this study suggest that the Laryngeal Tube is an effective and safe airway device for airway management in mechanically ventilated patients during elective surgery.
  
  
  CONCLUSIONS
  In 96.6% of patients intubated with the Laryngeal Tube, it was possible to maintain oxygenation, ventilation, and respiratory mechanics during mechanical ventilation.
authors.affiliation: *Department of Anesthesiology, Bnai-Zion Medical Center, Haifa, Israel; and †Department of Anesthesiology, University of Texas-Houston Medical School, Houston, Texas.
authors.forename: Luis A
authors.initials: LA
authors.lastname: Gaitini
authors.forename: Sonia J
authors.initials: SJ
authors.lastname: Vaida
authors.forename: Mostafa
authors.initials: M
authors.lastname: Somri
authors.forename: Victor
authors.initials: V
authors.lastname: Kaplan
authors.forename: Boris
authors.initials: B
authors.lastname: Yanovski
authors.forename: Robert
authors.initials: R
authors.lastname: Markovits
authors.forename: Carin A
authors.initials: CA
authors.lastname: Hagberg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000399:Air Pressure; D000768:Anesthesia, General; D002245:Carbon Dioxide / Q000097:blood; D004868:Equipment Failure; D005260:Female; D006801:Humans; D007830:Larynx; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D012121:Respiration, Artificial / Q000295:instrumentation*; D012129:Respiratory Function Tests; D013147:Spirometry
chemical_list: D002245:Carbon Dioxide