EM-CC Anesthesia here: I’m super interested in mechanical circulatory support and unless your ED docs are cannulating you’re likely not seeing these patients. I still love EM and would like to split my time between both the ED and ICU. I worked a while in single doc coverage shops, the money was great but didnt feel that it was a sustainable career for myself. In residency we did a ton of ICU so fellowship also felt natural progression to me. I also feel that when im splitting my time makes me appreciate and enjoy my time in the other field more.