Contrast radiography and effects of thoracic sympathetic ganglion block--anatomical analysis.

Thoracic sympathetic ganglion block is less effective than lumbar sympathetic ganglion block due to differences in the anatomical structure of these regions. Contrast radiographic findings and an analysis of the effects of lumbar sympathetic ganglion block have been reported, but there are few reports concerning thoracic sympathetic ganglion block. The relationship between contrast radiography findings and the effects of thoracic sympathetic ganglion block were studied in 131 block procedures which mainly had hyperhidrosis.