Articles: nerve-block.
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Nerve block
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Randomized Controlled Trial Comparative Study Clinical Trial
[Carticaine in brachial plexus block, axillary approach (author's transl)].
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The Journal of physiology · Jan 1974
Mechanisms for differential block among single myelinated and non-myelinated axons by procaine.
1. The differential sensitivity of saphenous nerve fibres in the cat to block by procaine HCl was re-examined by recording identifiable unit action potentials from small nerve filaments.2. ⋯ Absolute differential block of non-myelinated and small myelinated axons was obtained by limiting the length of axons exposed to procaine to 2 mm.5. Differential rates of blocking among myelinated axons appear to depend on differences in the length of axons that must be exposed to blocking concentrations of procaine and to arise from the irregular distribution of such concentrations within an exposed nerve.