Barrett's esophagus Flashcards
Recommended endoscopic screening for BE
Males with > 5 years GERD + one additional risk factor:
- Age >50
- Caucasian
- Central obesity
- Smoking
- Family hx of BE or EAC
Seattle protocol
Surveillance OGD
4 quadrant biopsy every 2 cm along the extent of BE
Prague criteria
Maximum extent (distance from OGJ to max extent of Z-line) Circumferential extent
Chemoprevention for BE
Rationale
PPI
Rationale:
-cohort studies: decrease risk of progression to neoplastic BE
-most BE patient have symptoms of GERD and endoscopic evidence of reflux esophagitis
Risks of EAC in
1) general pop of BE
2) LGD
3) HGD
1) 0.25% / year
2) 0.5% / year
3) 4-8% / year
Types of endoscopic eradication for BE
RFA ( most common)
Management options for high grade syplasia/intramucosal carcinoma
Endoscopic ablation
Endoscopic resection
Esophagectomy
Intensive endoscopic surveillance
Surveillance for BE controversial
1) For
2) Against
1) observational studies that:
- can detect curable dysplasia
- detect asymptomatic cancers at less advance stage
2) observational studies have -lead-time bias
- length-time bias
- evidence of documented incurable disease in surveillance patients