Chemotherapy/Radiotherapy-Induced Dysphagia in Head and Neck Tumors: A Challenge for Otolaryngologists in Low- to Middle-Income Countries

Head and neck cancer accounts for 2.8% of all cancers and a large proportion of these patients have a locally advanced stage of the disease, for which chemotherapy and radiation therapy are potentially curative treatments. Dysphagia is one of the most common chemoradiotherapy-related side effects in head and neck cancer since it can lead to life-threatening complications. Reports from the current literature suggest better swallowing outcomes with intensity-modulated radiotherapy (IMRT) compared to three-dimensional conformal radiotherapy (3DCT). However, in low-/middle-income countries, multiple healthcare access barriers to 3DCT that may lead to higher rates of chemo/radiotherapy related adverse events. This narrative review provides a comprehensive appraisal of published peer-reviewed data, as well as a description of the clinical practice in an otolaryngology referral center in Colombia, a low-income country.