Skip to content

Gastric Residual Volume and Aspiration Risk Following Intravenous Metoclopramide in Fasted Diabetic Patients Undergoing Elective Surgery

Ultrasonographic Assessment of Preoperative Gastric Residual Volume and Aspiration Risk Following Intravenous Metoclopramide in Fasted Diabetic Patients Undergoing Elective Surgery Under General Anesthesia: A Prospective Non-Randomized Controlled Comparative Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07519447
Enrollment
60
Registered
2026-04-09
Start date
2025-03-01
Completion date
2025-09-01
Last updated
2026-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Aspiration Risk, Elective Surgery, Fasted Diabetic Patients, Gastric Residual Volume, Metoclopramide

Brief summary

This study aimed to evaluate the effect of metoclopramide on preoperative gastric emptying in diabetic patients.

Detailed description

Perioperative aspiration of gastric contents is a rare but serious complication of anesthesia. Aspiration pneumonia is associated with significant morbidity, including prolonged mechanical ventilation, and carries a risk of mortality as great as 5%. Point-of-care (POC) gastric ultrasound has gained popularity in recent times. It has been adapted in the field of anesthesiology gradually to make the clinical decision before anesthetizing patients where the fasting status is uncertain and in emergency patients where surgery is mandated. Metoclopramide, a medication used for diabetic gastroparesis, is a cholinergic agent that acts by increasing the release of acetylcholine at the neuromuscular junction within the gastric wall. Further, metoclopramide has antidopaminergic properties that inhibit dopamine-induced gastric smooth muscle relaxation, and it also penetrates the blood-brain barrier and binds to medullary chemoreceptors.

Interventions

DRUGMetoclopramide

Diabetic patients received a single IV dose of metoclopramide 10 mg (2 mL) administered 30-60 minutes prior to POC gastric ultrasound assessment, to allow for peak prokinetic effect.

Sponsors

Kafrelsheikh University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age from 18 to 65 years old. * Both sexes. * American Society of Anesthesiologists (ASA) physical status I-II. * Underwent elective surgery.

Exclusion criteria

* Patients taking drugs that affect gastric motility. * Patients with renal failure. * Hypothyroidism. * Obesity \[body mass index (BMI) \> 30kg/m2\]. * Connective tissue disorders. * History of gastrointestinal surgery. * Those with steroid-induced hyperglycemia. * Pregnancy.

Design outcomes

Primary

MeasureTime frameDescription
Antral cross-sectional area30 minutes after drug administrationAntral cross-sectional area (CSA) was measured by Point-of-Care (POC) ultrasound (cm²). Antral CSA was calculated using the standard ellipse formula: Antral CSA (cm²) = π/4 × antero-posterior (AP) (cm) × cranio-caudal (CC) (cm)

Secondary

MeasureTime frameDescription
Gastric volume30 minutes after drug administrationGastric volume (GV) was estimated using the validated formula described by Perlas et al.: GV (mL) = 27.0 + 14.6 × right lateral decubitus (RLD)-cross-sectional area (CSA)- 1.28 × Age
Antral gastric grade30 minutes after drug administrationQualitative grading of gastric content was performed as follows, using the validated Perlas classification: Grade 0 - empty antrum in both semi-sitting (SS) and right lateral decubitus (RLD) positions (estimated GRV ≤0 mL, minimal aspiration risk); Grade 1 - fluid visible in RLD position only \[estimated gastric residual volume (GRV) approximately 100-300 mL, low-to-intermediate risk\]; Grade 2 - fluid visible in both SS and RLD positions (estimated GRV \>300 mL, high aspiration risk).
Fasting glucose30 minutes after drug administrationPost-intervention fasting serum glucose was measured.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 10, 2026