2021 Volume 99 Issue 1 Pages 57-61
Photodynamic therapy (PDT) is used for salvage treatment of esophageal cancer after failed response to chemoradiotherapy (CRT) or radiotherapy (RT). However, post-procedural strictures occur often after PDT, which require extensive fiberization and frequent expansions. Therefore, we performed PDT using tip food for painting a black oil-based ink paint marking that could conduct a stable laser radiation locally and induce light blocking and hardness to prevent esophageal strictures. We retrospectively analyzed 7 patients with esophageal cancer (T1b in 5 patients and T2 in 2 patients) who were treated by this modified PDT technique in our hospital from January 2020 to August 2021. After PDT, a localized complete remission rate of 85.7% was achieved (5 patients with T1b (100%) and 1 of 2 patients with T2 (50%) esophageal cancer). No signs of esophageal stenosis were observed. By using a black oil-based ink paint marking, esophageal stenosis following PDT can be prevented.
