Can someone get off ECMO?

I'm curious, can someone actually be taken off ECMO, or is it a treatment that patients are permanently attached to? It's a serious medical intervention, so I'm wondering if there's a possibility of patients recovering enough to no longer need it. If so, what are the criteria for being taken off ECMO, and how does the process typically go? It would be great to get a clearer understanding of the outcomes and next steps for patients who undergo this type of treatment.