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<h3>Background and Importance</h3> In Belgium, the reimbursement of medical and implantable devices relies on fixed lump sums defined by the National Institute for Health and Disability Insurance (INAMI). These amounts are not indexed and do not always reflect patient complexity or technological advances. Optimising the use of such reimbursement schemes is crucial for sustainable hospital resource management. <h3>Aim and Objectives</h3> This study aimed to assess the impact of a pharmacist-led intervention on the financial performance of vascular surgery procedures. A secondary objective was to identify variables associated with reimbursement deficits. <h3>Material and Methods</h3> A before-after interventional study was conducted from December 2023 to April 2025. The analysis focused on endovascular dilatation procedures (INAMI code 589050–589061). The study included three phases: baseline financial analysis, pharmacist-led feedback, and post-intervention evaluation. Pharmacists met with vascular surgeons to explain the reimbursement model, present margin data by physician, and highlight price differences among equivalent devices. Primary outcomes were the average financial margin per procedure and the proportion of interventions exceeding the reimbursed amount. Secondary analyses explored associations between selected variables and the likelihood of generating a device-related financial deficit. <h3>Results</h3> Among 199 procedures, 193 were included in the final analysis. Patient and surgery characteristics were comparable between periods. The average margin increased by € 59.7 (+23.3%) (p=0,51), and the proportion of negative-margin procedures declined from 31.7% to 27.2% (p=0,53) though not statistically significant. Margins were negatively correlated with procedure duration (p < 0.001*) and number of comorbidities (p = 0.016*), but not with age or sex. <h3>Conclusion and Relevance</h3> Although statistical significance was not reached, the study revealed encouraging trends. The observed correlation between clinical complexity and lower margins suggests that fixed reimbursement schemes may be inadequate for complex patients. These findings highlight the relevance of hospital pharmacists in promoting cost-awareness and optimising the use of surgical devices. <h3>Conflict of Interest</h3> No conflict of interest