Background: The use of shorter radiotherapy schedules has an economic and logistic
advantage for radiotherapy departments, as well as a high degree of patient convenience.
The aim of this study is to assess the acute and short-term late toxicities of a
hypofractionated radiotherapy schedule with a concomitant boost. Methods: We enrolled 57
eligible patients as group A. These patients received 42.5 Gy in 16 fractions of 2.66 Gy each
to the whole breast over 3.2 weeks. A concomitant electron boost of 12 Gy in 16 fractions