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Updated: Jun 7, 2025

Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
Published on: October 12, 2012
Complex Antiphospholipid Syndrome Successfully Controlled for 17 Years with Personalized Enoxaparin Therapy.
Mafalda Vasconcelos1, Patrícia Moreira1, Teresa Costa E Silva1
1Consulta de Doenças Auto-imunes, Hospital Beatriz Ângelo, ULS Loures-Odivelas, Loures, Portugal.
Antiphospholipid syndrome (APS) can present with rare, severe complications. Personalized anticoagulation with enoxaparin, guided by anti-factor Xa activity, led to 17 years of stability in a complex APS case.
Area of Science:
- Internal Medicine
- Rheumatology
- Autoimmune Diseases
Background:
- Antiphospholipid syndrome (APS) is an autoimmune disorder causing thrombosis and pregnancy complications.
- This case details a 56-year-old female with triple antibody-positive APS and multiple rare manifestations.
Purpose of the Study:
- To describe a complex case of Antiphospholipid Syndrome (APS).
- To highlight rare APS manifestations and their management.
- To emphasize personalized anticoagulation strategies in APS.
Main Methods:
- Case report of a 56-year-old female with APS.
- Detailed clinical follow-up including thrombotic and hemorrhagic events.
- Management with chronic enoxaparin, guided by anti-factor Xa activity.
Main Results:
- The patient experienced rare APS manifestations: purpuric lesions, adrenal insufficiency, acalculous cholecystitis, Budd-Chiari syndrome, and Addison's disease.
- She suffered severe thrombotic and hemorrhagic events, including splanchnic vein thrombosis and hemorrhagic shock.
- Long-term enoxaparin therapy, with dose adjusted by anti-factor Xa activity, resulted in 17 years of event-free stability.
Conclusions:
- Atypical APS presentations necessitate vigilance for unusual complications.
- Personalized anticoagulation, guided by anti-factor Xa activity, is crucial for managing APS.
- This case underscores the importance of tailored therapeutic strategies and close monitoring in APS patients.
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