Neurolytic block

A neurolytic block is a form of nerve block involving the deliberate injury of a nerve by freezing or heating ("neurotomy") or the application of chemicals ("neurolysis").[1] These interventions cause degeneration of the nerve's fibers and temporary (a few months, usually) interference with the transmission of nerve signals. In these procedures, the thin protective layer around the nerve fiber, the basal lamina, is preserved so that, as a damaged fiber regrows, it travels within its basal lamina tube and connects with the correct loose end, and function may be restored. Surgical cutting of a nerve (neurectomy), severs these basal lamina tubes, and without them to channel the regrowing fibers to their lost connections, over time a painful neuroma or deafferentation pain pain may develop. This is why the neurolytic is usually preferred over the surgical block.[2]

The neurolytic block is sometimes used to temporarily reduce or eliminate pain part of the body. Targets include[3]

References

  1. Scott Fishman; Jane Ballantyne; James P. Rathmell (January 2010). Bonica's Management of Pain. Lippincott Williams & Wilkins. p. 1458. ISBN 978-0-7817-6827-6. Retrieved 15 August 2013.
  2. Williams JE. Nerve blocks: Chemical and physical neurolytic agents. In: Sykes N, Bennett MI & Yuan C-S. Clinical pain management: Cancer pain. 2nd ed. London: Hodder Arnold; 2008. ISBN 978-0-340-94007-5. p. 225–35.
  3. Atallah JN. Management of cancer pain. In: Vadivelu N, Urman RD, Hines RL. Essentials of pain management. New York: Springer; 2011. doi:10.1007/978-0-387-87579-8. ISBN 978-0-387-87578-1. p. 597–628.


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