b"Scientific Session Abstracts SATURDAY APRIL 20, 2024 Conclusion: The establishment of an OBL as part of our academic practice allowed for a 57% increase in overall case volume from P1 to P2. This increased case volume allowed expansion of our training program without compromising case volume. Endovascular cases overall represent 40% of trainee experience. Since initiating an OBL, approximately 20% of residents' cases areperformed in OBL setting. Clinical experience in an OBL as part of Vascular Surgery Training offers experience which is absent from traditional educational paradigms and is directly applicable to modern Vascular Surgery practice.CASE VOLUMEALL P1 P2 P VALUEYEAR 20042023 20042013 20142023All Cases 44,816 17,431 27,385 p0.05Endo Cases 17,930 7,039 10,891 p0.05Avg No Cases Per TraineeAll Cases 1,689.80 1,713.10 1,610.80 p=n.s.Endo Cases 664.1 703.9 640 p=n.s.Percent of All Trainee Cases in OBL42 NDANNUAL MEETING|APRIL 1921, 2024|OCEANSIDE, CA 37"