Re: staffing - I agree that there is a difference between plasmapheresis (which is reasonable to monitor a few people at once) and ICU care (which, at least at my institution, we generally rely on 1:1 staffing for devices that circulate blood outside of the body).
Re: catheters - agreed that they are routinely placed, but they're morbid and we don't do it unless necessary. Generally we use a different type of catheter for recirculation vs a standard central line, so this probably can't be piggy-backed on what is already going to be placed in the ICU.
Re: catheters - agreed that they are routinely placed, but they're morbid and we don't do it unless necessary. Generally we use a different type of catheter for recirculation vs a standard central line, so this probably can't be piggy-backed on what is already going to be placed in the ICU.