reflux aspiration
Conditions
Interventions
PCV-VG group:pressure-controlled ventilation-volume guaranteed
PCV group:pressure controlled ventilation
No positive pressure group:no positive pressure ventilation
Sponsors
the First Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
Female
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. Age 18 to 65 years old; 2. ASA I-II grades; 3. Mallampati grades I to III.
Exclusion criteria
Exclusion criteria: 1. More than 2 independent risk factors for difficult mask ventilation (age > 55 years, history of snoring, bearded, toothless, BMI > 28 kg/m2, Mallampati grade III or IV, limited mandibular extension ability, and nails and jaws) distance < 6 cm); 2. Difficult airway in anticipation of assessment; 3. Respiratory system and cardiovascular and cerebrovascular diseases; 4. Those who are allergic to the drugs used in the study; 5. Gastroesophageal reflux disease, intestinal obstruction and pregnancy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cross-sectional area of gastric antrum; | — |
Secondary
| Measure | Time frame |
|---|---|
| vital signs;blood gas analysis;Postoperative flatulence and nausea and vomiting; | — |
Countries
China
Contacts
Public ContactShiping Yin
The First Affiliated Hospital of Nanchang University
Outcome results
None listed