A year of pandemic for European particle radiotherapy: A survey on behalf of EPTN working group

•We investigated the effect of Covid-19 pandemic in the treatment practice of particle therapy institutions in Europe.•The number of in-person first evaluations and follow-up visits decreased, but telemedicine was implemented.•During the pandemic hypofractionation and short-schedule of chemotherapy, when applicable, were preferred.•A delay in cancer diagnosis and oncological staging leading to an increment in more advanced diseases at first presentation.