[Changes in free thyroid hormones after epidural anesthesia]. / Variazioni degli ormoni tiroidei liberi dopo anestesia epidurale.

The changes of FT4 and FT3 hormone levels were measured in 14 patients who were submitted to various light operations after epidural anesthesia. The FT3 changes were similar to those usually detected after general anesthesia, a fact that leads to the hypothesis that the afferent stimuli are not the only responsible for the thyroid hormone changes after stress.