Ultrasound Evaluation of Superior Mesenteric Artery Measurements in a Healthy Pediatric Population

Study Overview
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Brief Summary
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Multicenter, prospective, observational research project on children aged from 10 to 15 years old undergoing abdominal ultrasound examinations during routine clinical practice.

Detailed Description
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Demographics data, clinical indications, ultrasound diagnosis, and ultrasound measurements will be recorded and stored on an database. Ultrasound measurements will be analyzed to define the normal range of values of Superior Mesenteric Artery (SMA) angle and Superior Mesenteric Artery - Aorta (SMA-A) distance in the pediatric population according to age, Body Mass Index (BMI), and fat parameters.

Official Title
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A Prospective, Observational, Multicenter Study on Ultrasound Evaluation of Superior Mesenteric Artery Measurements in a Healthy Pediatric Population

Conditions
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Superior Mesenteric Artery Syndrome

Intervention / Treatment
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* Diagnostic Test: Ultrasound measurements


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male and female children Age ranging from10 to 15 years, included Abdominal ultrasound examination to be performed for indications other than gastrointestinal evaluation Signed Informed Consent Exclusion Criteria: Presence of a disease that could distort the anatomy around the SMA (e.g., abdominal mass, lymphadenopathy, severe scoliosis, free abdominal fluid) Oncologic patients at risk of neoplastic cachexia.

Ages Eligible for Study
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Minimum Age: 10 Years
Maximum Age: 15 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: Ultrasound measurements|ultrasound measurement at the level of the left renal vein on a sagittal plane according to age|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Define the normal range of values of the SMA angle | Measurement in degree with its 95% confidence interval | 1 day | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Define the normal range of values of the SMA-A distance LV | Measurement in millimeter (mm) with its 95% confidence interval measured through ultrasound examination at the level of the left renal vein on an axial plane according to age | 1 day | 
| Define the normal range of values of the SMA-A distance D | Measurement in millimeter (mm) with its 95% confidence interval measured through ultrasound examination at a level where the third part of the duodenum crosses on an axial plane according to age | 1 day | 
| Define the normal range of values of the SMA angle (degree), SMA-A distance LV | Measurement in millimeter (mm) with its 95% confidence interval measured through ultrasound examination according to BMI categories, subcutaneous and visceral fat thickness | 1 day | 
| Assess the association between the SMA angle and BMI categories | According to age and sex. | 1 day |