Comparison of Antrum Surface Between Women With Operative Hysteroscopy or Planned Caesarean Section

Study Overview
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Brief Summary
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Realization of a gastric ultrasound just before surgery, to measure the surface of antrum of stomach and compare if divergence sizes can be observed between women with a operative hysteroscopy and women with a planned caesarean section. To know if anaesthesia need to be adapted to the population.

Official Title
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Gastric Ultrasound Before Planned Caesarean Section or Operative Hysteroscopy : How Much Pregnancy Changes Surface of Antrum of the Stomach ? Comparative Observational Study

Conditions
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Pregnancy Related

Intervention / Treatment
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* Other: Ultrasound


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age between 18 and 40 Membership of a national insurance scheme Written consent Physical status score or American Society of Anesthesiologists (ASA) score = 1 or 2 Planned caesarean section or operative hysteroscopy Exclusion Criteria: Not able to give her written consent (not speaking French), under legal protection Insulin-dependant diabetes Hiatus hernia History of gastro-oesophageal surgery Contraindication to right lateral decubitus Treatments with anti-acids before ultrasounds.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Female

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Operative hysteroscopy<br>women with an operative hysteroscopy planned | Other: Ultrasound<br>* Ultrasound of antrum of stomach<br>|
| Planned caesarean section<br>Pregnant women with a planned caesarean section | Other: Ultrasound<br>* Ultrasound of antrum of stomach<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Measure of antral surface | Measure of gastric antrum surface by Ultrasound on operative hysteroscopy women and planned caesarean section women. | Just before anesthesia and surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Measure of Perlas score | Perlas score (Grade 0, defined as an empty antrum in both the supine and the right lateral decubitus positions, indicates that the stomach is completely empty; grade 1, defined as visualisation of gastric fluid content in the right lateral position only, corresponds to low gastric fluid volume; grade 2, defined by visualisation of liquid contents in both supine and right lateral positions, suggests a high gastric fluid volume with increased risk for pulmonary aspiration) measure by Ultrasound on operative hysteroscopy women and planned caesarean section women. | Before surgery | 
| Assessment of anxiety on gastric residue with a numeric scale | Measure of anxiety with a numeric scale (0 = no anxiety, 10 = maximal anxiety) | Before surgery | 
| Assessment of frequency of intraoperative inhalation | Comparison of proportion of inhalation between the two population | During surgery | 
| Incidence of fasting on gastric residue between the two populations | Comparison of antral surface with fasting as covariable | Before surgery |