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1 March 1995 Barrett's esophagus: photodynamic therapy for ablation of dysplasia, reduction of specialized mucosa and treatment of superficial esophageal cancer
Bergein F. Overholt M.D., Masoud Panjehpour
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Proceedings Volume 2371, 5th International Photodynamic Association Biennial Meeting; (1995) https://doi.org/10.1117/12.203380
Event: Fifth International Photodynamic Association Biennial Meeting, 1994, Amelia Island, FL, United States
Abstract
Fifteen patients with Barrett's esophagus and dysplasia were treated with photodynamic therapy. Four patients also had early, superficial esophageal cancers and 5 had esophageal polyps. Light was delivered via a standard diffuser or a centering esophageal balloon. Eight patients maintained on omeprazole and followed for 6 - 54 months are the subject of this report. Photodynamic therapy ablated dysplastic or malignant mucosa in patients with superficial cancer. Healing and partial replacement of Barrett's mucosa with normal squamous epithelium occurred in all patients and complete replacement with squamous epithelium was found in two. Side effects included photosensitivity and mild-moderate chest pain and dysphagia for 5 - 7 days. In three patients with extensive circumferential mucosal ablation in the proximal esophagus, healing was associated with esophageal strictures which were treated successfully by esophageal dilation. Strictures were not found in the distal esophagus. Photodynamic therapy combined with long-term acid inhibition provides effective endoscopic therapy of Barrett's mucosal dysplasia and superficial (Tis-T1) esophageal cancer. The windowed centering balloon improves delivery of photodynamic therapy to diffusely abnormal esophageal mucosa.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Bergein F. Overholt M.D. and Masoud Panjehpour "Barrett's esophagus: photodynamic therapy for ablation of dysplasia, reduction of specialized mucosa and treatment of superficial esophageal cancer", Proc. SPIE 2371, 5th International Photodynamic Association Biennial Meeting, (1 March 1995); https://doi.org/10.1117/12.203380
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KEYWORDS
Photodynamic therapy
Cancer
Esophagus
Oncology
Chest
Diffusers
Endoscopy
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