NCT06567873

Gastric Ultrasound Assessment for Patients Taking Cannabis

Assessment of Preoperative Gastric Content With Ultrasound in Patients Reporting Cannabis Use

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 40 (actual)
• Sponsor: Hospital for Special Surgery, New York · Academic / Other
• Sex: All
• Age: 18 Years – 99 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study is to perform bedside gastric point of care ultrasound (POCUS) exams to assess the gastric volume and content (clear liquids vs solid food) perioperatively in patients who report cannabis use.

Detailed description

Cannabis use in the United States has continued to increase in recent years, particularly in the adult population. Ease of access through legalization paired with improved public perception has contributed to the uptick in cannabis use. The subset of cannabis users suffering from pain who present for surgery pose a risk for perioperative aspiration due to the slowing of gastric motility due to cannabis use. There is currently no adapted NPO guideline to account for cannabis use. Gastric Ultrasound (GUS) can be used as a bedside tool for assessing a patient's stomach contents and risk of aspiration. GUS can identify whether a patient's stomach is empty or filled with clear liquid, thick liquid, or solid food. The volume of the stomach can be accurately calculated if there is clear liquid content. A full stomach is categorized as those with solid or thick liquid content or with clear liquid measuring more than 1.5 ml/kg body weight. As GUS is noninvasive and does not pose risk to patients, it is a useful tool assessing aspiration risk in the preoperative period.

Conditions

• Gastric Ultrasound
• Point of Care Ultrasound
• Cannabis Use

Interventions

Type	Name	Description
OTHER	Gastric Ultrasound Exam	A gastric ultrasound is a simple, fast, non-invasive bedside diagnostic test that provides a qualitative and quantitative assessment of gastric contents. There are no known risks of a gastric ultrasound exam.

Timeline

• Start date: 2025-05-09
• Primary completion: 2025-10-13
• Completion: 2025-10-14
• First posted: 2024-08-23
• Last updated: 2025-12-16

Locations

1 site across 1 country: United States