ENS 41881: Difference between revisions

From kanterella

Latest revision as of 22:20, 1 March 2018

v t e ENS Event
06:00 Jul 21, 2003
Title	Medical Event - Dose Both Greater than and Less than Prescribed
Event Description	An independent review of HDR (High Dose Rate) treatment records occurred on July 28, 2005. During this review, a Medical Event was discovered which meets reporting requirements of 10 CFR 35.3045. On July 21, 2003, an 87 year old male received what was to be the first of two High Dose Rate (HDR) treatments for esophageal cancer using a remote afterloading unit. The physician Authorized User prescribed a dose of 500 cGy (centiGray) at 0.5 cm from the surface of the NG (naso-gastric) tube for an active length of 5.5 cm using a 5.551 Curie iridium-192 source. The treatment plan called for 12 indexer step positions at 5.0 mm spacing. The medical physicist entered 12 indexer step positions with 2.5 mm spacing and treatment was delivered. On August 14, 2003, the second fraction occurred without incident. A simulated plan was calculated on July 29, 2005, to reproduce the initial treatment plan and actual treatment delivered. The simulations suggest the patient may have received as much as 74% over dosage to a portion of his esophagus and as much as 92% under dosage to a portion of his esophagus. The patient returned to the facility on July 14, 2005, for treatment and is currently under our care.

ENS 41881 +/-
Where
Saint Vincent Hospital Indianapolis, Indiana (NRC Region 3)
License number:	13-000133-02
Organization:	Saint Vincent Hospital
Reporting

10 CFR 35.3045(a)(1)
Time - Person (Reporting Time:+17745.92 h739.413 days <br />105.63 weeks <br />24.308 months <br />)
Opened:	Edward Wroblewski 15:55 Jul 29, 2005
NRC Officer:	Bill Huffman
Last Updated:	Jul 29, 2005
41881 - NRC Website
v • d • e

v t e Emergency Notification System
Saint Vincent Hospital with 10 CFR 35.3045(a)(1)
WEEKMONTHYEAR2017-10-27T19:28:00 [Table view]
[ENS list for Saint Vincent Hospital]

@@ Line 16: / Line 16: @@
 | event date = 07/21/2003 CST
 | last update date = 07/29/2005
-| title = Medical Event - Dose Both Greater Than And Less Than Prescribed
+| title = Medical Event - Dose Both Greater than and Less than Prescribed
 | event text = An independent review of HDR (High Dose Rate) treatment records occurred on July 28, 2005.  During this review, a Medical Event was discovered which meets reporting requirements of 10 CFR 35.3045.
 On July 21, 2003, an 87 year old male received what was to be the first of two High Dose Rate (HDR) treatments for esophageal cancer using a remote afterloading unit.  The physician Authorized User prescribed a dose of 500 cGy (centiGray) at 0.5 cm from the surface of the NG (naso-gastric) tube for an active length of 5.5 cm using a 5.551 Curie iridium-192 source. The treatment plan called for 12 indexer step positions at 5.0 mm spacing.  The medical physicist entered 12 indexer step positions with 2.5 mm spacing and treatment was delivered.  On August 14, 2003, the second fraction occurred without incident.