Gastric Assessment Ambulatory Surgery (GAAS)

Gastric Assessment in Ambulatory Surgery : a Prospective Study

The surgical procedures in outpatient surgery are in perpetual increase. However, the peri operative stress can reduce the gastric emptying. A patient's compliance for following the fasting rules cannot be controlled at home. Ambulatory surgery is currently proposed to fragile patients with many comorbidities known to slow gastric emptying. In day case surgery the airway management are often managed with supraglottic device ( laryngeal mask). This device does not protect the respiratory tract and may expose the patient to a risk of inhalation of gastric content (if not empty).

This study aim to mesure the prevalence of full stomachs in outpatient surgery and to observe any changes in anesthetic management secondary to the ultrasound assessment of gastric content. It will confront theoretical full stomach risk factors with ultrasound findings. The practical and clinical relevance of such a technique in the context of outpatient surgery will be assessed in this study. The ultimate goal is to improve the safety of the patient's anesthetic management by controlling the risk of pulmonary aspiration.

Study Overview

• Status: Completed
• Conditions: Full Stomach
• Intervention / Treatment: Other: Ultrasouund assessment of gastric contents

Detailed Description

Patients will be included during the pre-anesthetic evaluation. The theoretical full stomach risk factors and the anesthetic management will be recorded in the computerized pre-anesthetic evaluation.

A qualitative and quantitative ultrasound evaluation will be performed when the patient arrives in the pre-anesthesia room. The examination will be performed in the right lateral decubitus with a low frequency convex ultrasound probe.

The main objective is to measure the prevalence of patients with a "full stomach" based on ultrasound criteria.

The primary endpoint is the presence of solid or fluid greater than 1.5 ml / kg of the predicted ideal body weight during ultrasonographic evaluation of gastric contents. In this situation, the patient will be considered at high risk of inhalation (considered full stomach).

This study will observe and record any anesthetic changes (ie : airway management) secondary to this ultrasouund assessment of gastric contents.

• Study Type: Observational
• Enrollment (Actual): 500

Contacts and Locations

Study Locations

• France
  • Montpellier, France, 34295
    • Uhmontpellier

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 99 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Ultrasouund assessment of gastric contents : prevalence of patients with a "full stomach" based on ultrasound criteria.

Description

Inclusion Criteria:

Affiliation to social security. Be over 18 years old. Have signed informed consent for this study. Score from the American Society of Anesthesiology (ASA) 1, 2, or 3. Being admitted for ambulatory day care surgery.

Exclusion criteria:

Patients who are protected or unable to give consent Patients with cognitive dysfunction, or unable to give their consent according Pregnant or lactating women. Vulnerable people. Patients with a history of esophageal or gastric surgery Patients suffering from hiatal hernia with esophageal reflux

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The prevalence of patients with a "full stomach" based on ultrasound criteria.	The presence of solid or fluid greater than 1.5 ml / kg of the predicted ideal body weight during ultrasonographic evaluation of gastric contents.	one hour

Collaborators and Investigators

• Sponsor: University Hospital, Montpellier
• Investigators: Principal Investigator: Philippe BIBOULET, MD, University Hospital, Montpellier

Study record dates

Study Major Dates

• Study Start (Actual): November 27, 2017
• Primary Completion (Actual): November 30, 2019
• Study Completion (Actual): February 20, 2020

Study Registration Dates

• First Submitted: November 16, 2017
• First Submitted That Met QC Criteria: November 20, 2017
• First Posted (Actual): November 24, 2017

Study Record Updates

• Last Update Posted (Actual): March 10, 2020
• Last Update Submitted That Met QC Criteria: March 9, 2020
• Last Verified: March 1, 2020

More Information

Terms related to this study

• Keywords: Pulmonary aspiration, full stomach, gastric content inhalation, Mendelson syndrom
• Other Study ID Numbers: RECHMPL17_0289

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED
• IPD Plan Description: NC

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No