Administering levothyroxine, a synthetic thyroid hormone replacement
drug, to brain-dead patients who are potential organ donors, may
result in an increase in the quantity and quality of organs available
for transplantation, according to Dr. George C. Velmahos of the
University of Southern California.
One potential organ donor in four is lost due to sudden physiologic
deterioration after brain death, researchers reported, and even
more organs are lost as a consequence of high doses of vasopressors,
stimulants that increase blood pressure to maintain adequate perfusion
to the brain-dead organ donor.
In a study of 19 patients who were candidates for organ donation
following brain death declaration, the researchers reported in
Archives of Surgery that use of the thyroid hormone replacement
enabled a "significant reduction" in the use of vasopressors,
and said there were "no failures to reach organ donation
due to cardiopulmonary arrest."
They concluded that levothyroxine therapy can play "an important
role in the management" of potential organ donors, and "may
result in an increase in the quantity and quality of organs available
for transplantation."