the criteria for laryngeal mask airway selection
Conditions
Interventions
Weight group:Different sizes of Laryngeal Mask Airway(LMA) according to the weights of individuals
gnathion-cricoid cartilage distance group:Different sizes of Laryngeal Mask Airway(LMA) depends on gnathion-cricoid cartilage distances of the individuals
Sponsors
Zhongshan Ophthalmic Center, Sun Yat-sun University
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Patients who will undertake selective surgery; 2. Meet the standard of American Society of Anesthesiologists'(ASA) physical status 1 to 3; 3. Aged 18 to 60 years;Those weighing=50kg;?Those with a prediction of less than 2 hour operation time.
Exclusion criteria
Exclusion criteria: 1. suffered from cardiopulmonary dysfunctions, severe hepatic and renal dysfunctions or conagulation disorder; 2. with head-neck malformation or mouth opening <2cm; 3. with symptomatic acute upper respiratory infection; 4. with a potentially airway disease or malformation; 5. with history of gastroesophageal reflux disease; 6. with history of head-neck surgery or limited neck extension or cervical spondylopathy; 7. with loosening or absent of teeth; 8. ling-term taking hormore drugs; 9. exiting any other factors that would affect the results of the research.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| First attempt success rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Oropharyngeal leak pressure;Mean airway pressure;Time required for insertion;LMA adjustment required time(s) during the surgery;Ease of airway device placement;Fiberoptic score; | — |
Countries
China
Contacts
Public ContactChen Hongbin
Zhongshan Ophthalmic Center, Sun Yat-sun University
Outcome results
None listed