I'm not sure about 3+3, but UTSW has a 4+2 track. You don't have to commit until you are already in the general surg program a year or two, and you end up double boarded in general and vascular surgery, if that is important to you. Most vascular surgeons don't do general cases nor do they particularly like having to take general call. There are aprox. 18-19 0+5 integrated programs. They are only 5 years and you are only board eligible for the vascular boards. For the most part in the 0+5 programs you do your first two years in general surgery and the last 3 years doing strickly vascular. These programs are relatively new (1-3 yrs old) so there is some variation in the curriculm and rotations from program to program. But for the most part they are at pretty big league programs and the number of index cases done by the traditional fellows are really good, so they should be good for the residents as well. Some of the programs plan to phase out their traditional fellowships as the vascular residents become chiefs. Don't know if that will be a national trend, but something to think about if you are interested in vascular surgery.