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Vascular Alterations Following COVID-19 Infection: A Comprehensive Literature Review
Paschalis Karakasis1, Athina Nasoufidou1, Marios Sagris2
1Second Department of Cardiology, Aristotle University of Thessaloniki, Hippokration General Hospital, 54642 Thessaloniki, Greece.
Insights
COVID-19 infection significantly impacts the vascular system, causing short and long-term issues like inflammation and clotting. This review explores these vascular effects and prevention strategies for better patient outcomes.
Area of Science:
- Cardiovascular Science
- Infectious Diseases
- Pathology
Background:
- SARS-CoV-2 (COVID-19) extends beyond respiratory effects, primarily targeting the vascular system.
- The infection triggers endothelial dysfunction, inflammation, and a hypercoagulable state, impacting both micro and macrovasculature.
Purpose of the Study:
- To comprehensively review short and long-term vascular alterations post-COVID-19.
- To investigate the impact of these vascular changes on patient prognosis.
- To outline preventive strategies for managing COVID-19-associated vascular complications.
Main Methods:
- Review of existing literature on vascular manifestations of COVID-19.
- Analysis of data from imaging modalities (e.g., MRI) and histopathological studies.
- Inclusion of diagnostic tools like video capillaroscopy.
Main Results:
- COVID-19 causes diverse vascular issues including thromboembolism, cardiovascular events, cerebrovascular complications, nephropathy, and retinopathy.
- Persistent vascular effects, termed long-term COVID-19, involve prolonged inflammation and endotheliopathy.
- Vascular alterations are frequently observed in severe illness and may persist long-term.
Conclusions:
- SARS-CoV-2 infection poses significant risks to the vascular system, both acutely and chronically.
- Understanding these vascular complications is crucial for improving patient prognosis.
- Preventive measures are essential to mitigate long-term vascular sequelae of COVID-19.
Abstract:
SARS-CoV-2, the causative agent of the ongoing COVID-19 pandemic, has revealed a broader impact beyond the respiratory system, predominantly affecting the vascular system with various adverse manifestations. The infection induces endothelial dysfunction and immune system dysregulation, creating an inflammatory and hypercoagulable state. It affects both microvasculature and macrovasculature, leading to thromboembolic events, cardiovascular manifestations, impaired arterial stiffness, cerebrovascular complications, and nephropathy, as well as retinopathy-frequently observed in cases of severe illness. Evidence suggests that SARS-CoV-2 infection may result in persistent effects on the vascular system, identified as long-term COVID-19. This is characterized by prolonged inflammation, endotheliopathy, and an increased risk of vascular complications. Various imaging modalities, histopathological studies, and diagnostic tools such as video capillaroscopy and magnetic resonance imaging have been employed to visualize vascular alterations. This review aims to comprehensively summarize the evidence concerning short and long-term vascular alterations following COVID-19 infection, investigating their impact on patients' prognosis, and providing an overview of preventive strategies to mitigate associated vascular complications.

