| Incident level |
Examples of incidents |
Notification of responsible staff and reporting |
| Level 1 |
• Critical incidents had a severe impact on a patient (e.g., dose deviation from prescribed total dose of >25%) |
General risk managers, clinical risk managers, radiation oncologist in charge, chief of staff. |
| Level 2 |
• Major incident that had an impact on a patient (e.g., dose deviation from prescribed total dose of 5-25% that could have led to serious side effect according to the irradiated organ) |
Immediately completed hospital incident report and reported the incident to the clinical risk management committee |
| Level 3 |
• Minor incidents that had less of an impact on a patient (e.g., <5% dose deviation from total intended prescription dose; <5 mm geometric variation except a set-up error, no shielding of normal tissue but below the tolerance dose) |
Clinical risk manager, radiation oncologist in charge, chief of staff. |
| |
• Compensable radiation incident (e.g., the final outcome, such as clinical significance, was not different radiobiologically from that which was intended) |
Completed hospital incident report and recorded internal incident report within 24 h |
| Level 4 |
• Near miss detected after the responsible phase but prior to starting the intended treatment plan, or treatment implemented without adequate check but patient received correct treatment as a result of a subsequent check |
|
| Level 5 |
• Non-compliance with some aspect of standard procedures but that did not directly affect radiation therapy |
|
| Level 6 |
• Errors detected and corrected as part of checking procedure during responsible phase |
Staff involved with error Recorded internal incident report |
