LAUSR

143Background: MAO is a challenging sequela of advanced cancer, leading to significant morbidity and mortality. A number of patients with MAO present with significant airway compromise necessitating intubation and mechanical ventilation. PRT for MAO patients in the ICU is complex, requiring high levels of coordination and support. The role and efficacy of PRT in intubated patients is not well defined. We performed a retrospective review of intubated patients with MAO receiving PRT to understand efficacy of treatment and patient outcomes. Methods: After obtaining IRB approval, a retrospective query was performed to identify all patients who received PRT and required mechanical ventilation at some point during the course of RT at the Hospital of the University of Pennsylvania from 2008 to 2016. Data was analyzed looking at demographics, reason for intubation, PRT dose and fractionation, length of intubation, extubation success and overall survival. Data was subsequently entered into a database using the sec...