Postoperative Re-irradiaTion With and Without HYPERthermia: Toxicity, Quality of Life and Survival in Patients With Locoregional Recurrent Breast Cancer

Patients will receive standard of care. Patients need to fill in questionnaires, these are additional interventions for the included subject. Questionnaires for patient-reported outcomes (PROMs) and toxicity will be filled in one week before treatment, one week before re-irradiation, one week and three months after re-irradiation, one, two and five years after surgery.