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The peak inspiratory pressure during face mask ventilation for general anesthesia is closely correlated with gastric insufflation. High pressure increases the amount of air in stomach and low pressure could decrease the tidal volume, therefore ideal pressure means the pressure guarantee adequate ventilation with minimal gastric insufflation.
The aim of this study is finding the proper pressure and mode of face mask ventilation in pediatric patients.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| P12 | Placebo Comparator |
| |
| P7+5 | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Peep 5cmH2O | Other | Face mask ventilation with peak inspiratory pressure according to the group P7+5 means face mask ventilation with peak inspiratory pressure 7cmH2O plus PEEP 5 cmH2O. |
| Measure | Description | Time Frame |
|---|---|---|
| The degree of atelectasis | After intubation, confirming endotracheal intubation, the ventilator is connected and turned on. | 1min after ventilator-on |
| Measure | Description | Time Frame |
|---|---|---|
| The incidence of gastric insufflation | During face mask ventilation |
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Inclusion Criteria:
Exclusion Criteria:
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| Peak inspiratory pressure | Other | Face mask ventilation with peak inspiratory pressure according to the group P12 means face mask ventilation with peak inspiratory pressure 12cmH2O without PEEP. |
|