Cellvizio to Evaluate Margins in Crohn's Ileal Disease
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: cellvizio.
- Who it may be relevant to
- Registry conditions: Crohn Disease, Resection Margins, Recurrence. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- France
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Is There a Concordance Between the Cellvizio With an Intravenous Injection of Fluorescein and the Pathology to Determine the Microscopic Inflammation at the Ileal Resection Margins in Crohn's Ileal Disease
Overview
Crohn disease is an inflammatory bowel disease. A surgical procedure is required in about 80% of cases. Surgery doesn't cure from Crohn's disease but the type of surgery remains important as there are several intraoperative risk factors for recurrence. Among these factors the microscopic inflammation at the resection margins. This is a crucial point, if the resection is too large there is a risk of short bowel syndrome, if the resection is too short (microscopic inflammation at resection site), there is a higher risk of postoperative recurrence (75% vs 46% at 18 months). Surgeons have to do a limited resection (2cm from macroscopic crohn disease). However this macroscopic non inflammatory resection margin can be microscopically inflammatory (up to 80%). Thus it is useful to evaluate if there is a microscopic inflammation at the resection margin. Moreover there is an increase interest for the role of the mesentery for recurrence but its role remains unclear. It is of interest to clarify the border between the inflammatory and non-inflammatory mesentery. Cellvizio is a confocal laser endomicroscopy providing the possibility of obtaining in vivo high-magnification images of the gut epithelium. This allows real-time examination of the gastrointestinal mucosa at the cellular and subcellular level. Cellvizio has never been used during surgery for Crohn disease. The aim of this study is to evaluate the intraoperative use of Cellvizio (using the CelioFlex microsonde) with an intravenous injection of fluorescein to determine the best ileal resection margins in Crohn disease.
Interventions
- Procedure cellvizio
During surgery an intravenous injection of fluorescein will be performed. The surgeon will, then, evaluate the ileal section margins on the mucosa, the serosa and the mesentery to evaluate if the section margin in microscopically inflammatory or not. She/he will then evaluate (in cm) the length between this section margin and the theorical section margin to be on a non-inflammatory tissue on the mucosa, serosa and mesentery. The data will be filled during surgery, blind from the pathological ana
Primary outcome measures
- concordance between the Cellvizio pictures and the pathology incidence [Time frame: 2 years]
Eligibility criteria
Inclusion criteria
- Patients who need a ileocaecal resection for a Crohn disease whatever is the phenotype of the Crohn's disease
Exclusion criteria
- Patients<18 years old,
- pregnancy or breastfeeding,
- patients who have an ileocolic resection for a surgical recurrence of the Crohn's disease.
- Patients operated in emergency for a peritonitis,
- patients who have a contra-indication for fluorescein injection or severe allergia to any drug
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Diagnostic
Study locations
France · 1 center
- CHU Amiens Picardie — Amiens
Identifiers
NCT: NCT05805020 · PI2022_843_0111