[Platelet count and clinical profile of anticardiolipin positive leg ulcers]

Thelma Laroka Skare1, Carmen Autralia Paredes Marcondes Ribas, Osvaldo Malafaia

  • 1Programa de Pós-Graduação em Princípios da Cirurgia do Hospital Universitário Evangélico de Curitiba/Faculdade Evangélica do Paraná, Curitiba, PR - BR. tskare@onda.com.br

Insights

Anticardiolipin antibodies are more common in patients with leg ulcers. However, factors like ulcer type or platelet count do not predict antibody presence.

Area of Science:

  • Immunology
  • Vascular Medicine
  • Dermatology

Context:

  • Leg ulcers represent a significant clinical challenge with diverse etiologies.
  • Anticardiolipin antibodies (aCL) are associated with thrombotic events and autoimmune conditions.
  • Understanding the prevalence and predictors of aCL in leg ulcer patients is crucial for diagnosis and management.

Purpose:

  • To determine the prevalence of anticardiolipin antibodies (IgG and IgM) in patients presenting with venous, diabetic, and arterial leg ulcers.
  • To investigate whether platelet count, a history of venous thrombosis, obstetrical history, or the presence of livedo reticularis are associated with aCL positivity in this cohort.

Summary:

  • This study found a significantly higher prevalence of anticardiolipin antibodies in patients with leg ulcers (7.2%) compared to controls (1.3%).
  • No significant association was observed between aCL positivity and gender, previous venous thrombosis, history of abortions, or platelet count.
  • The presence of livedo reticularis was noted in only two patients, limiting conclusions regarding its predictive value.

Impact:

  • The findings suggest an increased prevalence of anticardiolipin antibodies in individuals with leg ulcers, highlighting a potential, yet uncharacterized, link.
  • Clinical markers such as ulcer type, platelet count, and thrombotic history are not reliable indicators for identifying aCL positivity in leg ulcer patients.
  • Further research is warranted to elucidate the specific role and implications of anticardiolipin antibodies in the pathogenesis and management of leg ulcers.
Abstract

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