BackgroundRetained foreign objects (RFO) after surgery are rare, serious patient safety events. In international comparisons based on routine data, Switzerland had remarkably high RFO rates. The objectives of this study were to 1) explore national key stakeholders’ views on RFO as a safety problem, its preventability and need for action in Switzerland; and 2) to assess their interpretation of Switzerland’s RFO incidence compared to other countries.MethodsA semi-structured expert survey was conducted among national key representatives, including clinician experts, patient advocates, health administration representatives and other relevant stakeholders (n= 21). Data were coded and analyzed to generate themes related to the study questions following a deductive approach.ResultsExperts in this study unequivocally emphasized the tragedy for individual patients affected by RFOs. Productivity pressure and the strong economization of operating rooms were perceived as detrimental to safety culture, which was seen as essential for RFO prevention, specifically by those working in the OR. RFOs were seen as “maximally minimizable” but not completely preventable. There was strong agreement that within country differences in RFO risk between Swiss hospitals existed. On the systems level and compared to other safety issues, RFO were having less urgency for most experts. The international comparison of RFO incidences raised serious skepticism across all groups of experts. The validity of the data was questioned and the dominant interpretation of Switzerland’s high RFO incidence compared to other countries was a “reporting artifact” based on high coding quality in Swiss hospitals. While most experts thought that the published RFO incidence warrants in-depth analysis of the data, there was little agreement aboutwho’srole it was to initiate any further activities.ConclusionsThis investigation offers valuable insights into the perspectives of significant stakeholders concerning RFOs, their root causes, and preventability. The findings demonstrate how international comparative safety data are perceived, interpreted, and utilized by national experts to derive conclusive insights.