Patients who underwent T-2 sympathectomy demonstrated a significant increase in blood flow volume and flow velocities of the CAs and MCA, especially on the left side. Asymmetry of sympathetic influence on the hemodynamics of the CAs and MCA was noted. The usefulness of sympathectomy for the treatment of ischemic cardiovascular and cerebrovascular disease deserves further investigation.

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Craniofacial hyperhidrosis as well as palmar hyperhidrosis is an abnormal state of local excessive sweating of unclear etiology. The hyperhidrosis may be isolated in the craniofacial region or associated with palmar hyperhidrosis. The patient's face is so wet with sweat that their daily activities are often seriously disturbed. To the best of our knowledge, there has been no satisfactory medical therapy, nor any effective surgical treatment reported in the literature. In 1991, we started to treat a patient with such distress using endoscopic ablation of the sympathetic T2 segment, because we mastered the technique after treating a large series of palmar hyperhidrosis patients. Furthermore, we were impressed by concomitant reduction of craniofacial sweating after T2-3 sympathectomy resulting from the relatively different domination of sympathetic supply between the eye and face. It appears possible to relieve excessive sweating of the head and face, without producing ptosis or miosis by ablation of the T2 segment. During the past 2 years, 7 patients with severe craniofacial hyperhidrosis have been successfully treated with the method and all obtained a satisfactory result. No complete Horner's syndrome has been produced except in one patient, who showed a mild and transient left eye ptosis, in whom coagulation of the sympathetic trunk higher than the T2 segment was performed. Intraoperative monitoring of forehead skin perfusion and observation of the change of pupillary size is emphasized during the lesion making. The longest postoperative follow-up was 2 years, with a mean follow-up of 12.4 months.(ABSTRACT TRUNCATED AT 250 WORDS)

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