Introduction:

The risk matrix identifies the relevant control measures. Failure modes and effects analysis postpones defining the effectiveness of corrective measures. Using just one of these methods limits the scope when assessing risks and making decisions.

Objectives:

To determine the individual contribution of the basic causes of failure in the radiological risk of radiosynoviorthesis and the myelosupressor treatment of polycythemia vera, based on the matrix model and the reports.

Methods:

The analysis of quality management in radiotherapy was adapted to the practices under study and the individual selection of the basic causes most contributing to radiological risk. The international incident base provided the causes that completed the list of those derived from the application of the Pareto principle.

Results:

The sub-processes that contributed the most to risk were, in order of importance, the administration of the radiopharmaceutical, its preparation and the clinical prescription. For these, the most important, stages, failure modes and their causes were identified. There were causes that contributed to various failure modes. Non-compliance with procedures, protocols or practices, lack of staff training and staff fatigue are the causes of the identified risks.

Conclusions:

The effectiveness of the corrective measures of the most contributing causes, which are added to those derived from the matrix, was characterized in the improvement plan in radiosynoviorthesis and myelosupressor treatment of polycythemia vera in Cuba.

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