What is the mortality and morbidity of antiphospholipid syndrome (APS)?

Updated: Nov 24, 2020
  • Author: Suneel Movva, MD; Chief Editor: Herbert S Diamond, MD  more...
  • Print

APS may contribute to an increased frequency of stroke or MI, especially in younger individuals. Strokes may develop secondary to in situ thrombosis or embolization that originates from the valvular lesions of Libman-Sacks (sterile) endocarditis, which may be seen in patients with APS. Cardiac valvular disease may be severe enough to require valve replacement. Recurrent pulmonary emboli or thrombosis can lead to life-threatening pulmonary hypertension.

Catastrophic APS (CAPS) is a rare, serious, and often fatal manifestation characterized by multiorgan infarctions over a period of days to weeks. Mortality rates of 50% have been reported; however, with triple therapy (anticoagulation, corticosteroids, plasma exchange and/or intravenous immunoglobulin) data from an international registry showed a mortality rate of 28.6%. [10]

Late spontaneous fetal loss (second or third trimester) is common; however, it can occur at any time during pregnancy. Recurrent early fetal loss (< 10 weeks’ gestation) is also possible.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!