Title

Vasomotor Innervation Fields Of Peripheral Nerves Supplying The Hand: Differences Between Neurovascular And Somatosensory Patterns

Document Type

Article

Publication Date

6-1-2004

Publication Title

Journal Of Neurologic Physical Therapy

Department

Physical Therapy

Abstract

This study's purpose was to thermographically investigate the innervation fields of peripheral nerves to arteries of the hand and compare these neurovascular patterns to established somatosensory patterns. Seventeen normal adult volunteers received peripheral nerve blocks to the radial, median, and ulnar nerves. Palmar and dorsal thermographic images of the hand were taken to identify regions of hyperemia, revealing the vasomotor innervation field for each peripheral nerve. Peripheral nerve vascular innervation patterns displayed marked similarity to somatosensory patterns, with the notable exception that the radial nerve does not appear to innervate vessels of the hand. The vascular innervation field of the ulnar nerve in the hand appears identical to its somatosensory field, whereas, innervation to the remainder of the hand's vasculature seems solely supplied by the median nerve. These findings may help identify neurovascular etiologies of some nontraditional symptom patterns, which may have been previously diagnosed as having no organic cause.

Volume

28

Issue

2

pp.

58-62

ISSN

1557-0576

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