FDA Adverse Event Summary report: N

LINEAR ACCELERATOR

MDR report key: 32485 · Received April 30, 1996

Report

Report Number
32485
Date Received
April 30, 1996
Date of Event
April 10, 1996
Report Date
April 19, 1996
Manufacturer
UNKNOWN
Product Code
IYE
Adverse Event
Yes
Report Source
User Facility report
Reporter Location
TX, US
Reporter Occupation
OTHER

Narratives

Description of Event or Problem · 1

THE PRESCRIPTION FOR THE PT WAS 300C GY 1 FX GIVEN DOSE FOR 15 FRACTIONS WITH 6 MCV ELECTRONS TO AN AREA OF HIS RIGHT EAR. THE TREATMENT FIELD WAS SET UP USING THE 5CM DIAMETER PLASTIC TIP CONE. ACCELERATOR MONITOR UNITS NEEDED TO DELIVER THE PRESCRIBED DOSE WERE CALCULATED USING OUTPUT FACTORS FOR THE 5CM DIAMETER METAL CONE. THIS RESULTED IN THE PT RECEIVING 7 TREATMENTS OF 414C GY GIVEN DOSE (2898C GY/ 7FX). ONCE THIS ERROR WAS DISCOVERED THE PRESCRIPTION WAS AMENDED BY THE PHYSICIAN TO DECREASE THE DOSE RATE TO 200 C GY PER FRACTION FOR THE REMAINING 8 TREATMENTS. AT COMPLETION OF THIS COURSE OF TREATMENT,THE PT WILL HAVE RECEIVED 4500 C GY GIVEN DOSE IN 15 FRACTIONS.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 LINEAR ACCELERATOR LINEAR ACCELERATOR IYE UNKNOWN

Patients

Seq Age Sex Outcome Treatment
1 66 YR