The effect of oxygen inhalation on gastric volume of parturient
Conditions
Interventions
Control group:Routine nasal catheterization of oxygen
HFNO group:Flow nasal catheter for oxygen
Sponsors
Shanghai First Maternity and Infant Hospital
Eligibility
Sex/Gender
Female
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1.ASA II-III; 2.Aged 18 to 45 years; 3.BMI 18-35; 4.Gestational age greater than 37 weeks, healthy singleton parturients, undergo elective cesarean section with spinal anesthesia.
Exclusion criteria
Exclusion criteria: 1.Other known gastric emptying disorders or patients with gastroesophageal reflux disease are not excluded; 2.Intrauterine distress or pregnant women whose birth weight is less than 2500g; 3.Parturients with systemic diseases or chronic diseases; 4.The presence of respiratory comorbidities may affect the results of breathing and gas exchange; 5.The patient can only breathe through the mouth; 6.Parturients whose spinal anesthesia is contraindicated.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| gastric antrum area under semi-recumbent;gastric antrum area under the right lateral decubitus positions;gastric antrum area under semi-recumbent;gastric antrum area under the right lateral decubitus positions;Perlas semi-quantitative grading;Perlas semi-quantitative grading; | — |
Countries
China
Contacts
Public ContactZhou Shuangqiong
Shanghai First Maternity and Infant Hospital
Outcome results
None listed