An observational study in Diabetes Mellitus, sponsored by Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León. Completed at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-13.
Sponsored by Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León · Observational
Comparison of residual gastric volume measure by ultrasounds between diabetic and non-diabetic patients scheduled for elective surgery
The presence of gastric content increases the risk of aspiration during general anesthesia. Delayed gastric emptying has been described in diabetic patients; for that reason, diabetic patients could have a high risk of aspiration despite adequate fasting. This study aimed to compare ultrasound-guided measurement of residual gastric volume between diabetic and non-diabetic patients scheduled for elective surgery.
8,290 studies on the registry are indexed under Diabetes Mellitus; 1,077 are open to participants now.
This study's enrollment of 592 is above the median of 246 across 1,936 observational studies indexed under Diabetes Mellitus.
Browse Diabetes Mellitus studies →Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León is the lead sponsor of 15 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Fasted diabetic and non-diabetic patients scheduled for surgery.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Diabetic patients undergoing scheduled surgery
Non-diabetic patients undergoing sheduled surgery
Residual Gastric Volume
Residual gastric volume measured by ultrasounds as follows: Volume (mL) = 27.0 + 14.6 × CSARLD (cm²) - 1.28 × age (years)
Time frame: Preoperative
Antral Cross-Sectional Area
Antral cross-sectional area measured by ultrasounds
Time frame: Preoperative
| Milestone | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia |
|---|---|---|---|
| Started | 218 | 152 | 222 |
| Completed | 216 | 144 | 221 |
| Not completed | 2 | 8 | 1 |
Residual gastric volume measured by ultrasounds as follows: Volume (mL) = 27.0 + 14.6 × CSARLD (cm²) - 1.28 × age (years)
| mL | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia |
|---|---|---|---|
| Residual Gastric Volume | 22.1 (-0.08 to 47.32) | 33.1 (9.8 to 67.1) | 40.2 (12.3 to 80.9) |
Antral cross-sectional area measured by ultrasounds
| cm2 | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia |
|---|---|---|---|
| Antral Cross-Sectional Area | 5.7 (4.1 to 7.1) | 5.4 (4.0 to 7.2) | 7.1 (5.2 to 9.3) |
Collected over 1 day. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Diabetic Patients | 0/216 (0%) | 0/216 (0%) | 0/216 (0%) |
| Non-diabetic Patients | 0/144 (0%) | 0/144 (0%) | 0/144 (0%) |
| Diabetic Patients With Dysautonomia | 0/221 (0%) | 0/221 (0%) | 0/221 (0%) |
| Age, Continuous(years) | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia | Total |
|---|---|---|---|---|
| Median | 70 (61 to 76) | 59 (50 to 69) | 72 (65 to 76) | 66 (64 to 68) |
| Sex: Female, Male(Participants) | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia | Total |
|---|---|---|---|---|
| Female | 83 | 75 | 80 | 238 |
| Male | 133 | 69 | 141 | 343 |
| Ethnicity (NIH/OMB)(Participants) | Diabetic Patients | Non-diabetic Patients | Diabetic Patients With Dysautonomia | Total |
|---|---|---|---|---|
| Hispanic or Latino | 216 | 144 | 221 | 581 |
| Not Hispanic or Latino | 0 | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 | 0 |
PDFs hosted by the registry, ClinicalTrials.gov.
Ran from Mar 2022 to primary completion in Dec 2024, 33 months.
Results were first posted in May 2026, 1 year 4 months after primary completion.
Of 533 non-industry observational studies under Diabetes Mellitus, half reached primary completion within 42 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 175. This study's 33 months is below that.
Counting every sponsor, half of 642 studies reached it within 36 months; a quarter within 14 and three quarters within 122.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León