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- T Igarashi, Y Hirabayashi, R Shimizu, K Saitoh, and H Fukuda.
- Department of Anaesthesiology, Jichi Medical School, Tochigi-ken, Japan.
- Br J Anaesth. 1998 Aug 1;81(2):121-5.
AbstractWe examined the extradural space using a flexible extraduroscope in 113 patients undergoing extradural anaesthesia. Patients were classified into two groups to receive either thoracic or lumbar extradural anaesthesia as needed for perioperative analgesia. The extraduroscopy showed that the thoracic extradural space becomes widely patent after injecting a given amount of air and that the amount of fatty and fibrous connective tissue is less in the thoracic extradural space compared with the lumbar extradural space. We suggest that differences between the structure of these two vertebral regions may affect the spread of local anaesthetics in the extradural space.
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