ENS Event | |
|---|---|
05:00 Apr 15, 2025 | |
| Title | Medical Event |
| Event Description | The following information was provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
The radiation safety officer for Northwestern Memorial Healthcare contacted the Agency on 4/17/2025 to report a medical underdose. Initial information indicated an underdosing of Y-90 TheraSpheres of 54 percent. The patient reportedly tolerated the procedure well and no further treatment is scheduled. The administering physician reported an issue with vasoconstriction of the target artery. The licensee confirmed that the patient and referring physician were notified. The licensee did not meet reporting requirements, which will be addressed during a reactive inspection to be conducted on 4/21/2025. The intended activity was 17.03 mCi (630.11 MBq) and the administered activity was 7.84 mCi (290.08 MBq). Illinois Reference Number: IL250016 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. |
| Where | |
|---|---|
| Northwestern Memorial Hospital Chicago, Illinois (NRC Region 3) | |
| License number: | IL-01037-02 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+77.42 h3.226 days <br />0.461 weeks <br />0.106 months <br />) | |
| Opened: | Robin Muzzalupo 10:25 Apr 18, 2025 |
| NRC Officer: | Josue Ramirez |
| Last Updated: | Apr 18, 2025 |
| 57671 - NRC Website
Loading map... | |
Northwestern Memorial Hospital with Agreement State | |
WEEKMONTHYEARENS 577072025-05-12T05:00:00012 May 2025 05:00:00
[Table view]Agreement State Agreement STATE- Medical Event ENS 576712025-04-15T05:00:00015 April 2025 05:00:00 Agreement State Medical Event ENS 570972024-04-30T05:00:00030 April 2024 05:00:00 Agreement State Medical Event ENS 558422022-04-11T05:00:00011 April 2022 05:00:00 Agreement State Patient Received Dose Less than Prescribed ENS 557162022-01-27T06:00:00027 January 2022 06:00:00 Agreement State Patient Underdose ENS 557042021-02-15T06:00:00015 February 2021 06:00:00 Agreement State Patient Underdose ENS 467922011-04-27T05:00:00027 April 2011 05:00:00 Agreement State Agreement State Report - Underdose Due to Clumping in the Delivery Device ENS 448162009-01-29T06:00:00029 January 2009 06:00:00 Agreement State Agreement State Report - Personnel Contamination from I-131 Spill in Hot Lab ENS 423542006-02-21T06:00:00021 February 2006 06:00:00 Agreement State Agreement State - Loss of Iridium Seed Strand Following Medical Treatment 2025-05-12T05:00:00 | |