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[Involvement of large arteries by Horton's disease]

A M Piette1, O Blétry

  • 1Service de médecine interne, Hôpital Foch, Suresnes.

La Revue Du Praticien
|April 28, 1999
PubMed

Insights

Temporal arteritis can affect large arteries, particularly the aorta and its branches. Aortic involvement significantly raises the risk of life-threatening complications like aneurysm and dissection.

Area of Science:

  • Vascular Medicine
  • Rheumatology
  • Cardiovascular Pathology

Context:

  • Temporal arteritis, a form of large vessel vasculitis, can extend beyond cranial arteries.
  • Up to 15% of patients may exhibit large vessel involvement, frequently affecting the aorta and its branches.

Purpose:

  • To highlight the prevalence and clinical significance of large vessel involvement in temporal arteritis.
  • To differentiate the prognosis of limb versus aortic involvement in this condition.

Summary:

  • Large arteries like the ascending aorta, aortic arch, and subclavian/axillary arteries are common sites of temporal arteritis.
  • While limb involvement generally responds well to corticosteroids, aortic localization presents a substantially higher risk.
  • Aortic involvement can manifest initially or in known cases of temporal arteritis, carrying risks of aneurysm, dissection, and mortality.

Impact:

  • Emphasizes the critical need for vigilant monitoring of aortic complications in temporal arteritis patients.
  • Informs clinical management strategies, particularly regarding the aggressive nature of aortic involvement.
  • Underscores the potentially fatal outcomes associated with untreated or inadequately managed aortic aneurysms and dissections in this vasculitic context.

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