RESUMO
INTRODUCTION: Reducing the incidence of reportable events with undesirable effects (REUE) is a priority in the hospital environment, which is why reporting systems have been implemented to identify and manage them. Information is required regarding the performance of reporting systems, barriers, or facilitators for reporting and strategies that improve passive reporting. METHODOLOGY: Systematic scoping review of the literature that included studies performed in the population exposed to the occurrence of REUE in the health system (teams, patients, and family). A search was performed in Cochrane Database of Systematic Reviews, Epistemonikos, MEDLINE (PubMed), MEDLINE In-Process and MEDLINE Daily Update, EMBASE, LILACS, and databases of the World Health Organization and Pan-American Health Organization. RESULTS: Fifteen studies were found, 1 systematic review, 2 clinical trials, 8 observational studies, 3 qualitative studies, and 1 mixed study. In 4 of them, the effectiveness of active versus passive reporting systems was compared. The measures to improve the passive systems were education about REUE, simplification of the reporting format, activities focused on increasing the motivation for self-report, adoption of self-report as an obligatory institutional policy, and using specific report formats for each service. CONCLUSIONS: There is information that allows to find differences between the performance of the active and passive reporting systems. The reviewed research articles found that passive techniques significantly underreported adverse events. It is recommended that institutions adopt both active and passive techniques in adverse event surveillance. New studies should be directed to answer the comparative efficiency of the reporting systems.