The following information was provided by the
Arizona Department of Health Services (the Department) via email:
On March 13, 2026, the Department was notified that a medical event involving Y-90 Sirtex SIR-Spheres had occurred at St. Joseph's Hospital on March 12, 2026. During administration, staff noticed there was leakage from the tubing connecting the delivery system to the patient indicating an improperly secured connection. The procedure was immediately paused to assess the leak, the catheter was re-attached, and the administration continued. Preliminary dose assessment indicated that approximately 58 percent of the intended activity was delivered to the patient. The Department continues to investigate the event.
Additional information will be provided as it is received in accordance with SA-300.
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.