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Chokri Ben Lamine: Early Recognition and Immediate Treatment of Catastrophic APS
Aug 31, 2026, 17:11

Chokri Ben Lamine: Early Recognition and Immediate Treatment of Catastrophic APS

Chokri Ben Lamine, Hematologist at King Faisal Specialist Hospital and Research Center, shared a post on X:

Catastrophic antiphospholipid syndrome (CAPS)

Rare, fulminant and fatal – recognize early!

Suspect CAPS when:

  1. 3 or more organs involved
  2. Manifestations develop within 1 week or less
  3. Small-vessel thrombosis on histology
  4. Antiphospholipid antibodies detected

Common targets: kidney, lung, brain, heart, skin and GI tract

Thrombocytopenia, hemolysis and DIC-like findings may occur

  • Frequent triggers
  • Infection
  • Surgery or trauma
  • Pregnancy or postpartum
  • Estrogen or anticoagulation withdrawal
  • Malignancy or SLE flare

Do-not-miss mimics

  • TTP or aHUS
  • DIC or sepsis
  • HIT
  • HELLP syndrome
  • Malignant hypertension
  • Vasculitis

Treat immediately – do not await full criteria

  • Therapeutic unfractionated heparin
  • High-dose glucocorticoids
  • Plasma exchange with or without IV immunoglobulin
  • Identify and treat the trigger
  • Early ICU with hematology or rheumatology involvement

Refractory CAPS: consider rituximab or complement inhibition such as eculizumab in expert centers; evidence remains limited.

Repeat antiphospholipid antibodies 12 or more weeks later, but never delay emergency treatment for confirmatory testing.

ASH Education Program 2024⁠, EULAR recommendations, BSH APS guideline 2024⁠.”

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