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Ultrasound Assessment of Gastric Residual Volume in Obese Patients

NCT04544371 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 100

Last updated 2021-02-02

No results posted yet for this study

Summary

Gastric emptying is a major risk factor for aspiration of gastric contents.Aspiration into the lungs represents a fatal complication that can occur during anesthesia.

Not only gastric emptying importance to anesthetists is related to aspiration but also it is important to determine the systemic availability of substances given through the mouth. Delayed gastric emptying represents a major danger as it causes nausea and vomiting and prevents a return to oral feeding. Lastly it may cause morbidity and mortality.

Both humoral and neural influences have their impact on emptying. Volume and composition of gastric food act as major determinants for the rate of gastric emptying. The effect of body weight on gastric emptying are inconsistent.

ASA fasting guidelines application represents the primary method to avoid aspiration as it ensures that stomach is empty before induction of anesthesia.

These guidelines cannot be applied on all cases as in urgent or emergent situations or in morbidities associated with delayed gastric emptying.

Ultrasound can be used perioperatively to asses gastric content and volume at bedside.

Conditions

  • Aspiration Pneumonia

Interventions

DEVICE

gastric ultrasound

Focused gastric ultrasound was performed in semi-sitting position then right lateral position mindray curved transducer for examination of abdomen with low frequency (2-5 MHz) by a trained physician. The antrum of the stomach was located in the epigastrium after a sweep of the probe from left to right subcostal margins. This could be done using left lobe of liver as an anterior landmark and descending abdominal aorta as a posterior landmark

PROCEDURE

nasogastric tube insertion

Nasogastric tube (18-french) was inserted after induction of anaesthesia and endotracheal intubation. Aspiration of gastric contents was performed through gentle suction using 50 ml syringe with synchronous epigastric massage and gentle movement of nasogastric tube in and out for 10 minutes after confirmation of nasogastric tube position.

Sponsors & Collaborators

  • Fayoum University Hospital

    lead OTHER

Principal Investigators

  • Atef M sayed, MD · Fayoum University

  • maged L Bolis, MD · Fayoum University

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-10-15
Primary Completion
2020-12-20
Completion
2020-12-30

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04544371 on ClinicalTrials.gov