Andra T.: Antiphospholipid Syndrome and Its Thrombotic Risks
Andra T., Intelligence Liaison Officer at JMED MCM CBRN, shared a post on LinkedIn:
“Antiphospholipid syndrome (APS)
A stroke at 40, a clot with no obvious reason, repeated pregnancy loss: they can share one cause.
Antiphospholipid syndrome affects about 2 new people per 100,000 each year, and about 1 in 2,000 people live with it. Antibodies against phospholipid-binding proteins make the blood clot too easily, in veins, arteries and the placenta.
Who it affects: mostly women, with a mean age of about 42 at diagnosis. About half have primary APS; others also have lupus. Between 1 and 5 percent of healthy people carry the antibodies without ever developing the syndrome.
What patients describe:
- A swollen, painful leg from deep vein thrombosis
- Sudden breathlessness or chest pain from a clot in the lungs
- A stroke or mini-stroke at a young age, migraine or memory problems
- Recurrent miscarriage, stillbirth or early severe pre-eclampsia
- A lacy, purple, net-like pattern on the skin (livedo) and leg ulcers
- Low platelets and easy bruising
The serious side: clots tend to come back, so many people need long-term anticoagulation, usually warfarin. Fewer than 1 percent develop catastrophic APS, with clots in many organs within days, which can be fatal. In the large Euro-Phospholipid cohort, 9.3 percent of patients died over 10 years.
How it is diagnosed: blood tests for lupus anticoagulant, anticardiolipin and anti-β2-glycoprotein I antibodies. They must be positive twice, at least 12 weeks apart, together with a clot or a pregnancy complication.
Why it matters: testing after an unexplained stroke under 50, or after repeated pregnancy loss, changes treatment. With low-dose aspirin and heparin, most women with APS can have a successful pregnancy.
This is post 6 of 10 in my series on rare autoimmune diseases, ranked by incidence. Figures vary between studies and regions. This post is for awareness, not medical advice.”

Stay updated with Hemostasis Today.
-
Nov 8, 2026, 17:38Nasrin Samadi: Can a Normal Clotting Test Be Misleading?
-
Nov 8, 2026, 17:36Paschalis Evangelidis: The Multifactorial Nature of Cardiovascular Risk in People With Hemophilia
-
Nov 8, 2026, 17:32Evangelos Panagiotopoulos: Apixaban Reduces Stroke and Major Bleeding Risk in Secondary Stroke Prevention
-
Nov 8, 2026, 17:27Danny Gaskin: Applications Open for the BBTS Specialist Certificate in Clinical Transfusion Practice
-
Nov 8, 2026, 16:54James P. Crowley: DOAC Testing Under 50 ng/mL Safely Expedites Urgent Hip Fracture Surgery
-
Nov 8, 2026, 16:21Alessandra Bosch: Women and Girls With Bleeding Disorders and the DACH Registries at HHS 2026
-
Nov 8, 2026, 15:0310 Posts Not to Miss This Week
-
Nov 8, 2026, 14:06Shayan Mohammadmoradi: ZEUS Trial-Inflammation Reduction Without Fewer Cardiovascular Events
-
Nov 8, 2026, 14:05Kausik Ray: Plaque-Guided Care for Better Coronary Outcomes