key: cord-0789369-s2w4zjeb authors: Yu, Xianqiang title: Potential value of heparin in COVID-19 related cardiovascular disease date: 2021-10-02 journal: Am J Emerg Med DOI: 10.1016/j.ajem.2021.09.067 sha: 5625cf00e266ac1e01f934974010d1e497227fb3 doc_id: 789369 cord_uid: s2w4zjeb There is increasing evidence that COVID-19 is a multi-organ infectious disease with respiratory system as its main clinical manifestation. In particular, its risk of cardiovascular infection calls for effective clinical intervention strategies. The multiple values of heparin in its cardiovascular system deserve to be considered. Potential value of heparin in COVID-19 related cardiovascular disease Dear editor, we read with great interest an article in your journal about the burden of cardiovascular disease during the COVID-19 pandemic [1] . Obviously, it brings great challenges to the clinical recovery of patients. However, based on the implications of your research, we cannot ignore the issue of cardiovascular disease associated with COVID-19. To the best of our knowledge, angiotensin-converting enzyme 2 (ACE2) is the key factor that novel coronavirus can infect cells and further cause disease of related organs [2] . This is also the pathophysiological basis of multiple organ involvement of COVID-19. However, the cardiovascular system is rich in ACE-2 expression, so this may also be a key factor in the cardiovascular system involvement of COVID-19. With the ongoing and potential risks of the outbreak, there is increasing clinical evidence of COVID-19-related cardiovascular system involvement, including arteriovenous thrombosis and cardiovascular inflammation. From this point of view, antiviral inflammatory treatment and prevention of thrombosis are particularly important to improve the prognosis. In particular, we discuss the potential value of heparin in combating COVID-19 and its cardiovascular adverse effects. Recent studies have shown that heparin exerts anti-inflammatory effects mainly by inhibiting the interaction between HMGB1 and lipopolysaccharide (LPS) [3] . Novel coronavirus infection of the cardiovascular system significantly increased heparin-binding protein levels [4] . Therefore, the potential mechanism of heparin against cardiovascular inflammation caused by COVID-19 is clear. In other words, heparin has a one-shot effect on novel coronavirus cardiovascular infections. The potential value of heparin as a new clinical strategy in cardiovascular anti-inflammatory and anticoagulation is of great significance for improving the clinical prognosis of patients with COVID-19. Robust clinical randomized controlled trials are needed to further validate the multiple effects of heparin on cardiovascular infection in COVID-19 so that more patients can benefit. Not applicable. Not applicable. Xianqiang Yu completed the design and writing of the article and all the relevant content of the manuscript. The authors declare that they have no competing interests. Cardiovascular diseases burden in COVID-19: systematic review and meta-analysis Organ-protective effect of angiotensin-converting enzyme 2 and its effect on the prognosis of COVID-19 Heparin prevents caspase-11-dependent septic lethality independent of anticoagulant properties Integration of heparin-binding protein and interleukin-6 in the early prediction of respiratory failure and mortality in pneumonia by SARS-CoV-2 (COVID-19) E-mail address: yuxianqiang302@126 Not applicable.