 
         
         Abstract
         
         
            
Background
            
            Microsurgical breast reconstruction is intraoperatively complex. Evidence of standardized
               workflows improving outcomes exists, but the impact of staffing cases with familiar
               personnel is not documented.
            
         
         
            
Methods
            
            All microsurgical breast reconstructions (July 2021–June 2024) at our institution
               were analyzed for staff familiarity at granular time intervals (T0: setup to incision, T1-T3: each third of procedure). Staff were deemed “unfamiliar” if they staffed <2 microsurgical
               breast reconstructions with the attending in past 4 months. Intraoperative setbacks
               included anastomotic revisions, vessel damage, switching recipient vessels, or mastectomy
               flap defect. Major complications included operative takeback or flap loss.
            
         
         
            
Results
            
            Among 291 surgeries (5 attendings, 2 hospitals), 35.1% were immediate, 77.3% used
               standard hemiabdominal DIEP flaps, 58.4% were bilateral, and 49.5% had prior radiation.
               Intraoperative setbacks occurred in 19.7%, major complications in 7.4%, average duration
               was 631.6 minutes, and supply costs averaged $5,216. Unfamiliar scrub-techs correlated
               with increased intraoperative setbacks (OR: 2.11, p < 0.05), particularly in early time intervals (T1: 1.91, p = 0.06; T2: 2.09, p < 0.05). Unfamiliar circulators correlated with increased supply costs (+12.2%, p < 0.05), especially in later time intervals (T2: +12.2%, p < 0.05; T3: +16.0%, p < 0.05). In addition to staff familiarity, at univariate level, intraoperative setbacks
               also correlated with prior radiation (p < 0.05), duration correlated with laterality, immediate reconstructions, mastectomy
               type, and anastomoses (p < 0.05), and costs correlated with anastomoses (p < 0.05). Multivariate analysis confirmed unfamiliar scrub-techs and circulators were
               significantly correlated with increased intraoperative setbacks and higher costs (p < 0.05), with a trend toward longer duration (p = 0.06).
            
         
         
            
Conclusion
            
            In microsurgical breast reconstruction, unfamiliar teams correlated with increased
               intraoperative setbacks, costs, and durations. Adjusting staffing models to prioritize
               familiarity may provide medical, financial, and logistical benefits.
            
         
         Keywords
teaming - operating room efficiency - microsurgical breast reconstruction - cost saving
            - intraoperative setbacks - complications