Transplantation: can a single criterion determine the use of ECD kidneys?

Kidneys from expanded-criteria donors (ECDs)—the “kidneys that nobody wanted”—started to be used for transplantations more than a decade ago.1 The purpose of using ECD organs was to expand the donor pool to include donors who are over 60 years of age or are considered to have at-risk kidneys because of conditions such as hypertension or because the cause of death was cerebrovascular.