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Raynaud phenomenon: the Jepson classification.

B N Catchpole1

  • 1Department of Surgery, University of Western Australia, Queen Elizabeth II Medical Centre, Nedlands.

The Australian and New Zealand Journal of Surgery
|April 1, 1990
PubMed
Summary
This summary is machine-generated.

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Raynaud phenomenon occurs when digital arteries are sensitive to cold, leading to reduced blood flow. Localized arterial issues or limb occlusions increase susceptibility to cold-induced vasoconstriction.

Area of Science:

  • Vascular Medicine
  • Pathophysiology

Background:

  • Raynaud phenomenon is characterized by exaggerated digital vasospasm in response to cold.
  • Understanding its pathogenesis is crucial for effective management.

Purpose of the Study:

  • To present the Jepson classification of Raynaud phenomenon based on its underlying causes.
  • To elucidate the mechanisms by which cold and arterial conditions trigger the phenomenon.

Main Methods:

  • Review and synthesis of existing literature on Raynaud phenomenon.
  • Analysis of the role of digital artery sensitivity and limb artery occlusions.

Main Results:

  • Digital vessels in normal individuals exhibit sensitivity to direct cold exposure.
  • A 'local fault' in digital arteries enhances susceptibility to temperature drops.

Related Experiment Videos

  • Limb artery occlusions impair digital temperature regulation, contributing to the phenomenon.

    • Conclusions:

    • Raynaud phenomenon results from a combination of digital vascular sensitivity to cold and predisposing arterial conditions.
    • Vasoconstrictive influences play a significant role in precipitating Raynaud phenomenon episodes.