Prognostic factors in patients receiving surgery and radiation therapy for retroperitoneal sarcoma: A machine-learning analysis.

Background: The addition of radiation therapy to surgery for retroperitoneal sarcoma remains controversial. Improved patient selection may help identify optimal candidates for multimodality treatment. The aim of this analysis was to define prognostic factors among patients who receive radiation therapy and surgery to aid in patient selection for multimodal therapy.

Impact of visitor restriction rules on the postoperative experience of COVID-19 negative patients undergoing surgery.

Background: Many hospitals have implemented visitor restriction policies in response to the coronavirus disease 2019 pandemic. Because caregivers serve an important role in postoperative recovery, the purpose of this study was to evaluate the impact of visitor restrictions on the postoperative experience of coronavirus disease 2019-negative patients undergoing surgery.

Methods: Patients who underwent surgery immediately before or after the implementation of a visitor restriction policy were enrolled.