Ventilator Lung
Conditions
Keywords
manual ventilation
Brief summary
Evaluation of effects of an endoscopic bite block on mask ventilation. In the present study, expiratory tidal volume and minute ventilation are measured under same pressure controlled mode in ventilator with three kinds of holding a mask. ( by one hand, one hand with an endoscopic bite block and two hand hold.)
Detailed description
Evaluation of effects of an endoscopic bite block on mask ventilation. In the present study, expiratory tidal volume and minute ventilation are measured under the same pressure controlled mode in ventilator (Pressure 15cmH2O, Respiratory rate 15/min, I:E=1:1) with three kinds of holding a mask. ( by one hand, one hand with an endoscopic bite block and two hand hold.)
Interventions
PROCEDUREmask ventilation
mask ventilation (one-handed ventilation, one-handed with an endoscopic bite block, and two-handed ventilation)
Sponsors
SMG-SNU Boramae Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* patients scheduled for elective surgery under general anesthesia and agree with the purpose of the study
Exclusion criteria
* patients with diseases or structural abnormalities in the upper airway, wobbly teeth, and limited mouth opening of less than 3.5 cm or those who were at risk of aspiration
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Expiratory tidal volume | during mask ventilation after anesthesia induction | Expiratory tidal volume with one-hand mask ventilation, one-handed mask ventilation with an endoscopic bite block, and two-handed ventilation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Minute ventilation | during mask ventilation after anesthesia induction | Minute ventilationwith one-hand mask ventilation, one-handed mask ventilation with an endoscopic bite block, and two-handed ventilation |
| Incidence of inadequate ventilation or dead space ventilation | during mask ventilation after anesthesia induction | Inadequate mask ventilation and dead-space ventilation are defined as a mean expiratory tidal volume of less than 4 mL kg-1 of predicted body weight and a mean expiratory tidal volume of less than 150 mL per breath with no clinical signs, respectively. |
Countries
South Korea
Outcome results
None listed