The study of the recovery process of sympathetic nerves, indicating sudomotor functions and using such means as sweating tests by Wada-Takagi method and galvanic skin reflex, was made in comparison with the recovery of functions of sensory nerves under the five cases whose pedicle skin flaps were transplanted from various causes.
1) The order of the recovery of functions in transplanted skin flaps was, at first, pain sensation and was followed by touch, and next cold, warm sensations and lastly by sweating.
One of the main reasons why the recovery of sweating functions is so late is believed to be that, because the functions of sweat-glands themselves are regarded as being conserved from the first, the regeneration of sympathetic nerves reach sweat-glands and that when it connects functionally with the glands, there arises many difficulties.
2) When sweating tests by method of Wada and Takagi, galvanic skin reflex and electric skin resistance as the testing methods of recovery of sympathetic nerves indicating sweat-glands are compared each other, we can find close relations lie among them. But sweating test is most suitable for the purpose of observing the recovery of sweat-gland functions, which elucidates the extent and degree of the recovery.
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