title: Photodynamic therapy of early stage oral cavity and oropharynx neoplasms: an outcome analysis of 170 patients.
abstract: The indications of photodynamic therapy (PDT) of oral cavity and oropharynx neoplasms are not well defined. The main reason is that the success rates are not well established. The current paper analyzes our institutional experience of early stage oral cavity and oropharynx neoplasms (Tis-T2) to identify the success rates for each subgroup according to T stage, primary or non-primary treatment and subsites. In total, 170 patients with 226 lesions are treated with PDT. From these lesions, 95 are primary neoplasms, 131 were non-primaries (recurrences and multiple primaries). The overall response rate is 90.7% with a complete response rate of 70.8%. Subgroup analysis identified oral tongue, floor of mouth sites with more favorable outcome. PDT has more favorable results with certain subsites and with previously untreated lesions. However, PDT can find its place for treating lesions in previously treated areas with acceptable results.
authors: Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. b.karakullukcu@nki.nl
authors: Baris
authors: B
authors: Karakullukcu
authors: Kim
authors: K
authors: van Oudenaarde
authors: Marcel P
authors: MP
authors: Copper
authors: W M C
authors: WM
authors: Klop
authors: Robert
authors: R
authors: van Veen
authors: Maarten
authors: M
authors: Wildeman
authors: I
authors: I
authors: Bing Tan
mesh_terms: D002278:Carcinoma in Situ / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D018572:Disease-Free Survival; D006801:Humans; D008297:Male; D008652:Mesoporphyrins / Q000627:therapeutic use; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D037981:Neck Dissection; D009959:Oropharyngeal Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000627:therapeutic use; D015996:Survival Rate
chemical_list: D008652:Mesoporphyrins; D017319:Photosensitizing Agents; C072269:temoporfin