The Difference in Surgical Waste and Unused Surgical Supplies in Breast Surgery Done at Ambulatory Surgical Center vs Hospital

Background This study was performed to determine the amount of waste produced in breast operations in the ambulatory surgery center (ASC) as well as the hospital setting and where potential improvements could be made. Methods The study was performed at two hospitals and one ASC in Arizona from January 1, 2025 to September 30, 2025. 60 patients at the ASC and 20 patients were included at each hospital. All the disposable items that were opened were documented. All reusable surgical equipment and instruments were documented. At the conclusion of each case, the weight of the waste bags were recorded. Results The study included 100 patients who had breast conserving operations. The surgeons used 14/70 (20%) and 14/74 (19%) of the instruments at the two hospitals and 14/50 (28%) of the instruments at ASC. A significantly lower percentage of surgical equipment went unused at ASC vs hospitals ( P < 0.01). The average weight of the waste produced was 13.8 lbs and 14.0 lbs at the two hospitals, and ASC 7.97 lbs. The amount of waste produced at the ASC was significantly lower ( P < 0.01). The costs of the unused items per case at the two hospitals were $183.78 and $252.07, while the cost at the ASC was $52.35. Conclusion Even in small operations, there is significant waste of valuable resources. More specific trays would lessen waste. Waste was greater in hospitals vs the ASC. This may be another cost saving measure of ambulatory surgery center compared to hospital based surgery.