Measuring Normal Esophageal Flexibility in Children Using EndoFLIP (EndoFLIP)
Prospective Measurement of Normative Esophageal Distensibility Using EndoFLIP in Asymptomatic Children
Tutkimuksen yleiskatsaus
Tila
Interventio / Hoito
Yksityiskohtainen kuvaus
The Endoluminal Functional Lumen Imaging Probe (EndoFLIP) is an FDA-cleared device that measures the size, pressure, and flexibility (distensibility) of the esophagus. In adults, EndoFLIP measurements are routinely used to evaluate esophageal motility disorders such as achalasia. However, normal reference values for children have not been established, and pediatric interpretation currently relies largely on adult data.
The purpose of this prospective, single-center observational study is to generate preliminary normative pediatric EndoFLIP measurements. One hundred children between 5 and younger than 18 years of age who are undergoing clinically indicated colonoscopy with colonic motility catheter placement under general anesthesia will be enrolled. Eligible participants must have no history of esophageal disease or surgery and no symptoms suggestive of upper gastrointestinal disease.
Immediately before the scheduled colonoscopy and motility catheter placement, an EndoFLIP catheter will be inserted through the mouth and positioned across the lower esophageal sphincter. Measurements of esophageal diameter, cross-sectional area, pressure, compliance, and distensibility index will be obtained at standardized balloon fill volumes (20-60 mL). The EndoFLIP assessment requires approximately 3-5 minutes and does not require an upper endoscopy or any additional anesthesia. After the measurements are completed, the catheter is removed and the planned clinical procedure proceeds as scheduled. No additional study visits or follow-up are required.
The primary objective is to establish preliminary normative pediatric values for esophageal distensibility and related biomechanical parameters. Secondary analyses will evaluate associations between EndoFLIP measurements and participant age, height, weight, and body mass index. These data are intended to improve interpretation of pediatric EndoFLIP studies and support future research and clinical care for children with esophageal disorders.
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Vaihe
- Ei sovellettavissa
Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Lapsi
Hyväksyy terveitä vapaaehtoisia
Tutkimusväestö
Kuvaus
Inclusion Criteria:
- Age 5 to <18 years
- Scheduled to undergo clinically indicated colonoscopy with colonic motility catheter placement under general anesthesia
- No upper gastrointestinal symptoms (including dysphagia, recurrent vomiting, gastroesophageal reflux, or odynophagia)
- No history of esophageal disease or esophageal surgery
- Parent/guardian consent and participant assent, when applicable
Exclusion Criteria:
- Known or suspected esophageal pathology
- Prior esophageal surgery or instrumentation
- Anatomic upper gastrointestinal abnormalities
- Contraindication to anesthesia or EndoFLIP catheter placement
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Muut
- Jako: Ei käytössä
- Inventiomalli: Yksittäinen ryhmätehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Muut: Asymptomatic Children Undergoing EndoFLIP Assessment
Children 5 to younger than 18 years of age undergoing clinically indicated colonoscopy with colonic motility catheter placement under general anesthesia who have no history or symptoms of esophageal disease.
Participants undergo a single 3-5 minute EndoFLIP assessment before the scheduled procedure to measure esophageal distensibility index, diameter, cross-sectional area, compliance, and pressure for development of preliminary normative pediatric reference values.
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The Endoluminal Functional Lumen Imaging Probe (EndoFLIP) is an FDA-cleared impedance planimetry device used to measure esophageal diameter, cross-sectional area, intraballoon pressure, distensibility index, and compliance.
In this study, the EndoFLIP catheter is inserted orally during general anesthesia immediately before clinically indicated colonoscopy with colonic motility catheter placement.
Measurements are obtained over approximately 3-5 minutes at standardized balloon fill volumes of 20-60 mL, after which the catheter is removed and the planned clinical procedure proceeds.
The EndoFLIP assessment is performed solely for research purposes to establish preliminary normative pediatric esophageal biomechanical reference values.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Esophageal Distensibility
Aikaikkuna: During the procedure (approximately 3-5 minutes)
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Esophageal distensibility index measured using the Endoluminal Functional Lumen Imaging Probe (EndoFLIP) at standardized balloon fill volumes of 20, 30, 40, 50, and 60 mL.
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During the procedure (approximately 3-5 minutes)
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Esophageal Diameter
Aikaikkuna: During the procedure (approximately 3-5 minutes)
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Esophageal diameter measured using the Endoluminal Functional Lumen Imaging Probe (EndoFLIP) at standardized balloon fill volumes of 20, 30, 40, 50, and 60 mL.
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During the procedure (approximately 3-5 minutes)
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Esophageal Cross-sectional Area
Aikaikkuna: During the procedure (approximately 3-5 minutes)
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Esophageal cross-sectional area measured using the Endoluminal Functional Lumen Imaging Probe (EndoFLIP) at standardized balloon fill volumes of 20, 30, 40, 50, and 60 mL.
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During the procedure (approximately 3-5 minutes)
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Esophageal Compliance
Aikaikkuna: During the procedure (approximately 3-5 minutes)
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Esophageal compliance measured using the Endoluminal Functional Lumen Imaging Probe (EndoFLIP) at standardized balloon fill volumes of 20, 30, 40, 50, and 60 mL.
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During the procedure (approximately 3-5 minutes)
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Intraballoon Pressure
Aikaikkuna: During the procedure (approximately 3-5 minutes)
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Intraballoon pressure measured using the Endoluminal Functional Lumen Imaging Probe (EndoFLIP) at standardized balloon fill volumes of 20, 30, 40, 50, and 60 mL.
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During the procedure (approximately 3-5 minutes)
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Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
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