Özet:

Abstract Objective: to analyze the frequency of adverse effects in patients with cervical cancer undergoing external beam radiation therapy (teletherapy) in a cancer treatment center. Methods: cross-sectional, exploratory and descriptive study, carried out between May and June 2022, through interviews and documentary research, in the Serra Catarinense region, in Southern Brazil. Results: seven patients aged between 38 and 64 years, in different stages of the disease, were considered. The most common adverse effects presented were diarrhea, intestinal pain, abdominal cramps, rectal urgency and dysuria; therefore, the gastrointestinal and urinary systems are the most affected by the treatment. Conclusion: the use of methods that reduce the occurrence of the effects of external beam radiation therapy is an investigative demand, since these effects directly imply the quality of life and well-being of patients.

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