6.12  SARS-CoV-2 – Venous thromboembolism
People affected with pneumonia are more prone to venous thromboembolism. Out of 1026 COVID-19 patients, 40% of them exhibited high risk, and 11% of them at high risk of developing venous thromboembolism without any prophylaxis. Prophylactic measures can prevent venous thromboembolism. Only 7 out of 140 patients at high risk for venous thromboembolism had recorded about the anticoagulation treatment. And 44 out of 407 exhibited a higher risk for bleeding. In these patients, the mechanical compressions such as intermittent pneumatic compression and elastic compression stockings are instructed, and the duration and dosage of anticoagulants should be adjusted. Also, the COVID-19 patients, along with other co-morbid conditions such as cardiovascular manifestations, respiratory failure, renal and hepatic problems, can affect the bleeding status and venous thromboembolism. Therefore, further investigations are required to reduce the risk due to venous thromboembolism and bleeding in the case of COVID-19 patients [127].