COVID-19 and Thrombosis
COVID-19 and Thrombosis
COVID-19 infection can cause mild flu-like symptoms to causing pneumonia where those affected can get very breathless and require additional oxygen, even mechanical ventilation. COVID-19 pneumonia causes an inflammatory response that increases clotting factors in the blood, making blood clots in veins and arteries more likely. The risk of VTE is especially high in those with COVID-19 pneumonia.
Research has now shows that small doses of anticoagulants reduce the risk of hospital associated VTE in those with COVID-19 pneumonia and larger doses help improve recovery in those who only need supplementary oxygen.
The treatment of blood clots acquired during or after a hospital stay with COVID-19 pneumonia is the same as standard care in those who don’t have COVID-19.
What is COVID-19 Vaccine Immune Thrombosis and Thrombocytopenia (VITT)?
VITT is a very rare occurrence after certain COVID-19 vaccines. Symptoms start five or more days after the Astra- Zeneca or Johnson & Johnson COVID-19 vaccines and blood clots usually occur at unusual sites in the body. Cerebral venous sinus thrombosis occurs in 50 percent and can cause headaches which are unusually severe and persistent and may be worse on lying down or bending forward. The headache may occur with changes in vision, feeling or being sick. Fits (seizures) can occur, or weakness on one side of the body or a drop in consciousness.
Other symptoms can include:
- Persistent abdominal (tummy) pain
- Blood in the stools
- Chest pain, shortness of breath
- Leg pain and/or swelling
COVID-19 and Thrombosis FAQs
Share Your Story
Survivors of blood clots from around the world are sharing their stories with World Thrombosis Day to raise awareness and recognize their resilience. We want to hear from you. Share your story of strength and determination to inspire someone else!
 Prof. Beverley Hunt Interview in Thrombosis UK Video; https://www.youtube.com/watch?v=vTjkcfVrLUg&feature=youtu.be
 Clinical Guidance on the Diagnosis, Prevention and Treatment of Venous Thromboembolism in Hospitalized Patients with COVID-19,” published on 5/27/20 in the Journal of Thrombosis and Haemostasis (JTH)
 “Clinical Guidance on the Diagnosis, Prevention and Treatment of Venous Thromboembolism in Hospitalized Patients with COVID-19,” published on 5/27/20 in the Journal of Thrombosis and Haemostasis (JTH)