Errors and Datix Yr 1-1

St George's University of London

1. Overview of Radiotherapy Errors

  • Course Title: Essentials of Radiotherapy TRA401

  • Instructors: Hannah Andrews and Kim Robinson

2. Learning Objectives

  • At the end of this session, students will:

    • Understand errors in radiotherapy.

    • Recognize causative factors in radiotherapy errors.

    • Analyze errors using an error chain.

    • Be familiar with the error reporting process.

3. Understanding Mistakes and Errors

3.1 Definitions

  • Mistake: Often due to assumptions, lack of systems, instructions, or carelessness.

  • Examples:

    • Spelling mistakes

    • Getting on the wrong bus

    • Wrong fuel in cars

3.2 Difference Between Mistakes and Errors

  • Error: A deviation from correctness, either intentional or unintentional.

  • Emphasizes the need for reporting and future training to prevent recurrence.

4. Types of Radiotherapy Errors

4.1 Setup Errors

  • Gross Errors: More than 1cm deviation affecting dosage.

  • Random Errors: Variability due to patient setup mistakes.

  • Systematic Errors: Consistent deviations of similar magnitude.

4.2 Common Errors in Radiotherapy

  • Imaging and Setup Errors:

    • Incorrect manual matching on imaging.

    • Wrong patient identification.

  • Treatment Delivery Errors:

    • Failure to initiate breath-hold.

    • Incorrect tattoos or reference marks used.

5. Error Categorization

5.1 Error Types

  • Radiotherapy Error: Non-conformance in RT treatment compared to local protocols.

  • Radiotherapy Incident (RI): Treatment delivery differs from what was prescribed, leading to potential or actual harm to the patient.

  • Correctable RI: Can be compensated, outcome not clinically significant.

  • Reportable RI: Significant, and must be reported under regulations.

  • Non-Reportable RI: Not required to be reported but may still have clinical significance.

  • Near Miss: Error caught before impacting treatment.

6. Causes of Errors

6.1 Error Analysis Process

  1. Identify chain of events.

  2. Specific errors and issues in the process.

  3. Identify contributing factors.

6.2 Contributing Factors in Radiotherapy

  • Lack of training

  • Stress and fatigue

  • Poor documentation and design

  • Reliance on automation

  • Communication breakdowns

  • Staffing concerns

7. Automaticity and Clinical Practice

  • Involuntary Automaticity: Repetitive skilled actions may lead to a robotic approach, negatively impacting practice.

8. Detection and Prevention of Errors

  • Implement protocols for:

    • Checks and verification processes.

    • Avoiding distractions in the work environment.

    • Regular auditing of procedures.

9. Role of RCR and Patient Safety

9.1 Towards Safer Radiotherapy

  • Personal and collective responsibility for patient safety.

  • Initiatives to:

    • Investigate causes of errors.

    • Improve detection and reporting of errors and near misses.

    • Enhance education on risk awareness.

10. Post-Error Considerations

10.1 Impacts on Patients and Healthcare Professionals

  • For Patients: Increased toxicity, reduced tumor control, anxiety, loss of confidence.

  • For Professionals: Guilt, morale issues, anxiety about repercussions.

10.2 Duty of Candour

  • Obligation to inform patients if an error occurs.

11. Error Chains

  • Error Chain Concept: Series of events leading to unsafe outcomes.

  • Importance of communication, teamwork, and decisive actions in prevention.

12. Learning from Errors

12.1 Sharing Information

  • Errors and near misses must be reported:

    • Locally

    • Nationally

    • Internationally

12.2 Recommended Processes

  • Analyze incidents and provide recommendations.

  • Implement a quality system for change.

  • Establish feedback loops for staff involved.

13. Datix Incident Reporting System

  • Datix is used for reporting incidents, ensuring alerts to risks and guidance to prevent harmful events.

14. Case Studies

14.1 Case Study 1 (Adult)

  • Discussion on causative factors of a specific error.

14.2 Case Study 2 (Paediatric)

  • Challenges faced due to staff turnover and complexity of treatment setups.

  • Actions taken to resolve discrepancies in treatment processes.

15. Future Directions

  • Establishing a NO BLAME culture in radiotherapy departments.

  • Empowering staff to report errors without fear of reprimand.

  • Learning from past incidents and continuously improving practices.

16. Closing Remarks

  • Importance of engaging in open discussions.

  • Opportunity for questions and clarifications.