ENS 56661
ENS Event | |
|---|---|
15:07 Aug 5, 2023 | |
| Title | Medical Underdose |
| Event Description | The following information was provided by the PA Bureau of Radiation Protection (the Department) via email:
On August 4, 2023, the licensee, University of Pennsylvania, informed the Department of an under-dose incident involving yttrium-90 (Y-90) TheraSpheres. The event is reportable per 10 CFR 35.3045(a)(1). On August 3, 2023, it was determined that 71.0 percent of the prescribed dose to the target tissue was delivered for the above treatment. The only information relayed to the Department so far was that there were no spills or leaks in the system. The DEP [Department of Environmental Protection] is currently in contact with the licensee and will update this event as soon as more information is provided. The cause of the event is unknown at this time. The Department will perform a reactive inspection. More information will be provided as received. Event Report ID No: PA230021
An administration of Y-90 TheraSpheres occurred with no apparent difficulties. No leaks or spills were identified, as corroborated by post administration monitoring which identified no contamination. However, when the waste was measured it was determined that less than 80 percent (72.6 percent) of the prescribed activity was administered. It is estimated that 21.18 mCi of the 29.18 mCi prescribed dose was administered. The patient and prescribing physician have been informed. No adverse effects to the patient are present nor are any anticipated. Notified R1DO (Dimitriadis) and NMSS (Email). 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 | |
|---|---|
| University of Pennsylvania Philadephia, Pennsylvania (NRC Region 1) | |
| License number: | PA-0131 |
| Organization: | Pa Bureau Of Radiation Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+-4 h-0.167 days <br />-0.0238 weeks <br />-0.00548 months <br />) | |
| Opened: | John S. Chippo 11:07 Aug 5, 2023 |
| NRC Officer: | Karen Cotton-Gross |
| Last Updated: | Aug 7, 2023 |
| 56661 - NRC Website
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University of Pennsylvania with Agreement State | |
WEEKMONTHYEARENS 573752024-10-09T04:00:0009 October 2024 04:00:00
[Table view]Agreement State Patient Underdose ENS 570812024-04-17T04:00:00017 April 2024 04:00:00 Agreement State Medical Underdose ENS 566612023-08-05T15:07:0005 August 2023 15:07:00 Agreement State Medical Underdose ENS 570862023-01-31T04:00:00031 January 2023 04:00:00 Agreement State Medical Event ENS 570852022-12-29T04:00:00029 December 2022 04:00:00 Agreement State Medical Event ENS 570842022-12-28T04:00:00028 December 2022 04:00:00 Agreement State Medical Event ENS 558892022-05-04T04:00:0004 May 2022 04:00:00 Agreement State Underdose ENS 558512022-04-18T04:00:00018 April 2022 04:00:00 Agreement State Patient Underdose ENS 553372021-07-02T04:00:0002 July 2021 04:00:00 Agreement State Patient Under Dose ENS 549642020-10-20T04:00:00020 October 2020 04:00:00 Agreement State Missing Licensed Material ENS 534302018-05-25T04:00:00025 May 2018 04:00:00 Agreement State En Revision Imported Date 10/15/2018 ENS 525042017-01-19T05:00:00019 January 2017 05:00:00 Agreement State Agreement State Report - Received Dose Less than Prescribed Dose ENS 524572016-12-20T05:00:00020 December 2016 05:00:00 Agreement State Agreement State Report - Medical Underdose ENS 483032012-09-11T04:00:00011 September 2012 04:00:00 Agreement State Agreement State Report - Patient Underexposure Using Yttrium-90 Sir-Spheres Treatment ENS 482292012-08-23T04:00:00023 August 2012 04:00:00 Agreement State Agreement State Report - Patient Underexposure Using Yttrium-90 Sir-Spheres Treatment ENS 481372012-07-26T04:00:00026 July 2012 04:00:00 Agreement State Agreement State Report - Medical Event Involving an Underdose with Yttrium-90 Spheres ENS 477632012-03-20T04:00:00020 March 2012 04:00:00 Agreement State Agreement State Report - Underdose During Liver Disease Treatment ENS 474352011-11-10T12:00:00010 November 2011 12:00:00 Agreement State Agreement State Report - Underdosage of Theraspheres ENS 461012010-07-07T04:00:0007 July 2010 04:00:00 Agreement State Agreement State Report - Delivered Dose Differed from the Prescribed Dose by Greater than 50% ENS 457272010-01-21T05:00:00021 January 2010 05:00:00 Agreement State Agreement State Report - Brachytherapy Implants Outside of the Intended Treatment Area 2024-04-17T04:00:00 | |