Risk factors to identify patients who may not benefit from whole brain irradiation for brain metastases - a single institution analysis.

Background: Radiotherapy plays a major role in the management of brain metastases. This study aimed to identify the subset of patients with multiple brain metastases who may not benefit from whole brain irradiation (WBI) due to a short survival time regardless of treatment.

Methods: We analyzed a total of 339 patient records with brain metastases treated with whole brain radiotherapy from January 2009 to January 2016.