Medline ® Abstract for Reference 27
of 'Barrett's esophagus: Treatment with photodynamic therapy'
Photodynamic therapy as salvage treatment for local failures after definitive chemoradiotherapy for esophageal cancer.
Yano T, Muto M, Minashi K, Ohtsu A, Yoshida S
Gastrointest Endosc. 2005;62(1):31.
BACKGROUND: Although definitive chemoradiotherapy for esophageal cancer shows a high response rate, persistent or recurrent locoregional disease remains a major problem. Salvage esophagectomy is the only curative intent treatment option; however, it carries higher morbidity and mortality rates than primary esophagectomy. Response to second-line chemotherapy is quite dismal.
METHODS: From December 2002 to November 2003, we applied salvage photodynamic therapy to 13 patients with local failures after completion of chemoradiotherapy, 4 patients had local recurrence after achieving a complete response, and 9 had a persistent tumor after chemoradiotherapy. The decision to treat was based on patients' refusal of salvage surgery or chemotherapy. After the intravenous administration of 2 mg/kg of Photofrin, photoradiation treatment with an excimer dye laser was performed for 48 hours and 72 hours after the injection. Written informed consent was obtained from all patients.
RESULTS: Eight patients (62%) achieved a complete response. After a median follow-up period of 12 months after photodynamic therapy, 6 patients were still free of disease, and the overall survival rate at 1 year was 68.4%. There were no treatment-related deaths.
CONCLUSIONS: Our results show that salvage photodynamic therapy could be a promising curative intent treatment option with low morbidity and mortality rates.
Division of Digestive Endoscopy and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa 277-8577, Japan.