Photodynamic therapy (PDT)--also called phototherapy, photoradiation therapy, or photochemotherapy--is a relatively new treatment option being used to treat certain types of cancer, including endobronchial and esophageal cancers. PDT is a two-step process that involves administration of a photosensitizing agent followed by exposure to non thermal laser light. Intensive patient education and support are required during PDT. In the immediate post-procedure period, patients require intensive monitoring to ensure that a patient airway is maintained and pain is alleviated. Photosensitivity persist for four to six weeks post-PDT; to avoid photosensitivity reactions, patients must adhere to specific recommendations to avoid exposure to light. PDT is noted for extending the life expectancy and improving the quality of life of patients.
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