Is presumed consent an ethically acceptable way of obtaining organs for transplant?

The near-universal acceptance of cadaveric organ donation has been based on the provision of explicit consent by the donor while alive, either in the form of a formal opt-in or informal discussion of wishes with next of kin. Despite the success of transplantation programmes based on explicit consent, the ongoing imbalance between demand and supply of organs for transplantation has prompted calls for more widespread introduction of laws validating presumed consent with facility for opt-out as a means of increasing organ availability. The Department of Health (UK) has recently concluded a consultation on the introduction of such a law for England.