What are the odds of surviving ECMO?

I'm curious to know, what are the chances of survival for patients undergoing ECMO treatment? Is it a highly effective therapy, or does it come with significant risks? How does the success rate vary depending on the patient's condition and the reason for the ECMO? Additionally, what are some of the potential complications or side effects that patients might experience during or after ECMO treatment? I'd appreciate a comprehensive overview of the survival odds and potential risks associated with this life-saving procedure.