Related Experiment Video
Updated: Nov 1, 2025

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Clinical Features of COVID-19 Patients With Venous Thromboembolism
Insights
Venous thromboembolism (VTE) occurred in 20% of COVID-19 patients, particularly severe and critical cases. D-dimer levels can predict prognosis and mortality risk in these patients.
Area of Science:
- Medical Research
- Infectious Diseases
- Cardiology
Background:
- Coronavirus disease 2019 (COVID-19) is associated with an increased risk of thrombotic events.
- Venous thromboembolism (VTE) is a serious complication that can affect COVID-19 patients, particularly those with severe symptoms.
Purpose of the Study:
- To assess the clinical features of COVID-19 patients who develop VTE.
- To identify risk factors and prognostic indicators for VTE in COVID-19.
- To inform the development of preventive strategies for VTE in COVID-19 cases.
Main Methods:
- Retrospective analysis of COVID-19 patients admitted to Henan Provincial People's Hospital.
- Inclusion of patients with mild to moderate, severe, and critical symptoms.
- Analysis of VTE incidence, demographic data, laboratory parameters (including D-dimer and platelet counts), and patient outcomes.
Main Results:
- Overall VTE incidence was 20.0% among the 35 analyzed COVID-19 patients.
- VTE occurred predominantly in severe (1 case) and critical (6 cases) COVID-19 patients.
- Elevated D-dimer levels were statistically significant, serving as both a diagnostic and prognostic indicator for VTE in COVID-19.
- Severe and critical cases showed reduced platelet counts, indicating a risk of hemorrhage.
- A significant increase in D-dimer was associated with a higher risk of death in critical COVID-19 cases.
Conclusions:
- VTE is a significant complication in COVID-19, particularly in severe and critical cases.
- D-dimer is a crucial marker for risk assessment and prognosis in COVID-19 patients with VTE.
- Clinical management should balance the risks of hemorrhage and thrombosis during treatment for COVID-19.
Abstract:
This study aimed to assess the clinical features of coronavirus disease 2019 (COVID-19) patients with VTE, to help develop preventive measures for venous thromboembolism (VTE in COVID-19) cases. COVID-19 patients admitted to Henan Provincial People's Hospital were retrospectively analyzed, including 23, 4 and 8 cases with mild to moderate, severe and critical symptoms, respectively. VTE incidence, age at onset, relevant laboratory parameters and prognosis were analyzed. Overall, VTE incidence in the 35 patients was 20.0%, occurring in severe (n = 1) and critical (n = 6) cases. D-dimer showed statistical significance in laboratory examination, representing except a diagnostic index and especial can be a prognostic factor in VTE among COVID-19 patients. Severe and critical COVID-19 cases had significantly reduced platelet counts, with a risk of hemorrhage. During treatment, the risk of both hemorrhage and thrombosis should be considered. VTE occurs in COVID-19 cases, affecting individuals with severe and critical symptoms. Significant D-dimer increase is of great significance in the risk assessment of death in critical cases of COVID-19. Appropriate measures should be taken to prevent VTE during treatment.
Related Concept Videos
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis I: Introduction
Venous Thrombosis III: Interprofessional Care
Venous Thrombosis IV: Nursing Management
Endocarditis II: Clinical Features of Infective Endocarditis
Pulmonary Embolism I: Introduction

