The present results suggest that cervical sympathectomy in the rat increases ACTH secretion and decreases TSH secretion in the pituitary. These effects seem to be due to a mildly increased secretion of melatonin in the pineal body that probably in turn increases corticotropin-releasing factor (CRF) secretion and decreases thyrotropin-releasing hormone (TRH) secretion in the hypothalamus. Extrapolation of these findings to humans suggests that longterm and repeated stellate ganglion block would affect the pituitary secretions of ACTH and TSH.
Hiroshi Iwama1 Mamoru Adachi1, Choichiro Tase1 and Yoichi Akama1
(1) | Department of Anesthesiology, Fukushima Medical College, 1 Hikarigaoka, 960-12 Fukushima, Japan |
Received: 26 June 1995 Accepted: 1 March 1996
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