The following information was obtained from the state of
Florida via email:
On May 22, 2019, [the licensee Radiation Safety Officer] notified the BRC [Florida Bureau of Radiation Control] of an overdose of radiation treatment to a female 60 year-old Caucasian patient. Patient was prescribed ten 340 cGy planning target volume (ptv) fractionated treatments: 2 per day for 5 days. Minimum dose of 340 cGy per fraction, mean dose value 625 cGy per fraction, actual dose administered 1167.3 cGy in single fraction. Source S/N: 24-01-7403-001-032119-13092-68. Licensee has notified the patient that an overdose did occur, and expects no harm to the patient due to this fraction of treatment. Patient has five more treatments.
The machine used was a Varying GammaMed+, SN 641053, using a 7.385 Ci Iridium-192 GammaMed 232 source.
Florida Incident number: FL19-071
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.