Barrett's oesophagus precancerous condition of the esophagus
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patients in the age of 18-85 years with HGD/EC in a Barrett*s esophagus. - Pretreatment biopsies and ER specimen reviewed by the study pathologist (Prof. D. F. ten Kate). - In case pretreatment diagnosis is made on biopsy material: biopsies should be obtained at two separate occasions of which the most recent occasion is less than six months prior to inclusion in the study. - In case of previous endoscopic en-bloc resection of focal lesions: the ER specimen should have negative deeper resection margins and no invasive cancer at the lateral margins. - In case of previous endoscopic piece meal resection of focal lesions: all ER specimens should have negative deeper resection margins and the patient should have had two separate endoscopies showing no residual invasive cancer in the remaining Barrett*s mucosa. - Normal EUS - Informed written consent.
Exclusion criteria
Exclusion criteria: - Patients with a Barrett*s segment >5 centimeters. - Any endoscopic visual abnormality detected by high-resolution endoscopy at the RFA procedure. - Invasive cancer in any of the biopsies obtained at two different mapping endoscopies after ER but before RFA. - Any prior endoscopic treatment of Barrett*s neoplasia other than ER. - Patients unable to give informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - total histological eradication of HGD and/or EC. - total endoscopic eradication of Barrett*s mucosa. - total histological eradication of Barrett*s mucosa. | — |
Secondary
| Measure | Time frame |
|---|---|
| - acute and late complications of RFA - Percentage regression of Barrett's mucosa on the surface. - Changes in 24 hour impedantie-measurments and micro-manometry. | — |
Countries
Netherlands