ECMO - The Next Medical Futility Battleground?

The use of ECMO has been growing.  In contrast to dialysis, CPR, and mechanical ventilation; clinicians can usually more confidently refuse to offer or provide ECMO when they deem it medically inappropriate.  



Yet, one wonder whether expanding use will result in "indication creep."  CPR and dialysis were originally intended for only certain populations.  Yet, they are now regularly offered to 100-year-old patients with numerous serious comorbidities.  Et tu ECMO?