Introduction: The need to maintain a Quality Management System based on the UNE-EN-ISO 9001:2000 standards in 12 Departments of the "Hospital General Universitario Gregorio Marañón" (HGUGM), led us to make the decision to establish an internal audit program using our own personnel as a useful tool for knowledge management and continuous improvement. The Department of "Medicina Preventiva y Gestión de Calidad" developed an Audit Program, which has been implemented in our Hospital during the last three years.
Materials and methods: We conducted a training program for internal auditors, who then became part of the hospital audit staff. Quality Managers of the accredited departments were consolidated as a group. A procedure for scheduling and coordination of audits was developed. The auditors and those audited were surveyed on the difficulties in conducting audits, including a section for suggestions, and an annual report was drafted with the results of internal and external audits, as well as the improvement areas identified in the whole process.
Results: A total of 40 internal audits have been performed in HGUGM since 2007, and 38 people were trained. The Quality Management System improved in terms of the decreasing number of non-conformances (NC) in external audits, and all services have maintained the certification.
Conclusions: The perception of auditors and those audited regarding the performing of internal audits by our own personnel is very positive. There were identified improvement areas and common solutions.