COVID-19 associated thromboinflammation of renal capillary: potential mechanisms and treatment

Area of Science:

• Nephrology
• Infectious Diseases
• Hematology

Background:

• COVID-19, caused by SARS-CoV-2, is a global pandemic with significant morbidity and mortality.
• Key manifestations include systemic inflammation and a hypercoagulable state, impacting multiple organs.
• The kidneys are particularly vulnerable due to their filtration role, leading to protein loss and exacerbating hypercoagulability.

Purpose of the Study:

• To elucidate the pathophysiological mechanisms linking COVID-19 infection to renal capillary thrombosis.
• To identify potential targets for antithrombotic therapy in COVID-19 patients with kidney involvement.
• To propose a graded management strategy for patients, including preventative and therapeutic anticoagulation.

Main Methods:

• Review of existing literature on COVID-19, inflammation, thrombosis, and kidney injury.
• Analysis of pathophysiological pathways including inflammatory storm, endothelial injury, phosphatidylserine expression, and extracellular traps.
• Synthesis of evidence to support antithrombotic strategies and patient management.

Main Results:

• COVID-19 infection triggers mechanisms like inflammatory storm and endothelial injury, promoting renal capillary thrombosis.
• Erythrocyte aggregation and capillary lumen blockage contribute to kidney damage, making it a frequently affected organ.
• Antithrombotic therapies targeting specific mechanisms are proposed for graded patient management.

Conclusions:

• Integrating antithrombotic therapy with supportive care for renal disease in COVID-19 is crucial.
• Early prevention of thrombosis and continuous anticoagulation strategies are recommended.
• This approach aims to reduce kidney disease progression and mortality in COVID-19 patients.