title: Barrett's esophagus: treatment with 5-aminolevulinic acid photodynamic therapy.
abstract: Barrett's esophagus has been identified as the premalignant precursor of esophageal adenocarcinoma. The eradication of metaplastic or dysplastic columnar-lined (Barrett's) esophagus may prevent progression to esophageal adenocarcinoma. 5-Aminolevulinic acid photodynamic therapy is a simple method for the mucosal ablation of the abnormal segment. Areas of metaplastic epithelium may remain buried after treatment and continued surveillance is necessary. Repeated treatments often are necessary but are very well tolerated with few complications.
authors.affiliation: Department of Surgery, Cranfield Postgraduate Medical School (Gloucester), Gloucestershire Royal Hospital, United Kingdom.
authors.forename: H
authors.initials: H
authors.lastname: Barr
mesh_terms: D000622:Aminolevulinic Acid / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000627:therapeutic use*; D001471:Barrett Esophagus / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D004945:Esophagoscopy; D006801:Humans; D007275:Injections, Intravenous; D007413:Intestinal Mucosa / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D010778:Photochemotherapy / Q000379:methods*; D017319:Photosensitizing Agents / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000627:therapeutic use*; D011524:Protoporphyrins / Q000378:metabolism; D016896:Treatment Outcome
chemical_list: D017319:Photosensitizing Agents; D011524:Protoporphyrins; D000622:Aminolevulinic Acid; C028025:protoporphyrin IX