Abstract
Objective To observe the characteristics of cerebral regional blood flow (rCBF) in the patients with palmar hyperhidrosis,and to explore the passible mechanism for the development of pal-mar hyperhidrosis. Methods SPECT 99Tcm-ECD was used to quantitatively determine rCBF of patients with palmar hyperhidrosis who underwent endoscopic thoracic sympathectomy. The preoperative rCBF mode was analyzed, and the preoperative and postoperative mode of rCBF was compared. Results The one later-al high rCBF zone was observed at basal nucleus area in 9 cases out of 10 cases. The blood flow of high rCBF zones was significantly decreased after sympathectomy (Ra value 1.7.0±0.19 vs 1.10±0.06, P< 0.05). The blood flow change rate was (42.00±6.92) %. Conclusion The basal nucleus may play an important role in the development of palmar hyperhidrosis and compensatoy sweating. Key words: Palmar hypethidrosis; Cerebral blood flow; SPECT; Endothoracoscopic sympa-thecotmy
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