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Elucidating the Correlation of D-Dimer Levels with COVID-19 Severity: A Scoping Review
Wesam Ahmed Nasif1,2, Abeer Shaker El-Moursy Ali3, Mohammed Hasan Mukhtar1
1Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia.
Insights
Elevated D-dimer levels in COVID-19 patients indicate increased thrombotic activity and are linked to disease severity. D-dimer may serve as a prognostic biomarker for better patient outcomes and reduced mortality.
Area of Science:
- Biochemistry
- Hematology
- Infectious Diseases
Background:
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection triggers prothrombotic states.
- D-dimer, a fibrin degradation product, reflects thrombotic activity.
- Elevated D-dimer levels are associated with COVID-19 severity.
Purpose of the Study:
- To review existing literature on the association between D-dimer levels and COVID-19 severity and prognosis.
- To evaluate the efficacy of anticoagulant therapies in managing COVID-19.
Main Methods:
- Comprehensive literature search of MEDLINE/PubMed, Scopus, and Web of Science.
- Keywords included COVID-19, D-Dimer, Thrombosis, Fibrin network, Anticoagulant therapy, Inflammation, and disease severity.
- Scoping review of retrieved articles and clinical experience.
Main Results:
- D-dimer is a marker of thrombotic activity, formed from fibrin network degradation.
- SARS-CoV-2 infection induces prothrombotic changes, correlating positively with D-dimer levels.
- D-dimer levels are postulated to be associated with COVID-19 disease severity.
Conclusions:
- D-dimer shows potential as a biomarker for predicting COVID-19 prognosis and outcomes.
- Utilizing D-dimer for risk stratification can personalize clinical management.
- Early identification via D-dimer may reduce mortality and accelerate recovery in COVID-19 patients.
Aims:
The review explores the findings of previous studies to elucidate the association between levels of D-dimer and COVID-19 severity and prognosis. In addition, we assessed the efficiency of anticoagulant therapies in reducing COVID-19 severity and improving the prognosis of the patients.
Materials And Methods:
A comprehensive literature review was conducted using MEDLINE/PubMed databases, Scopus, and Web of Science with the help of keywords "COVID-19," "D-Dimer," "Thrombosis," "Fibrin network," "Anticoagulant therapy," "Inflammation," and "disease severity." Based on all these articles and clinical experience, a scoping review was constructed and the full texts of the articles that were retrieved were accessed.
Results:
A D-dimer is a complex protein molecule that is formed during plasmin-mediated degradation of the fibrin network. Thus, it serves as a marker of thrombotic activity. On the other hand, in addition to severe respiratory distress and reduction in pulmonary gas exchange, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) also triggers prothrombotic changes in the infected individuals. The levels of D-dimer have been postulated to be positively associated with the degree of disease severity among COVID-19 patients.
Conclusions:
It has been postulated that D-dimer could potentially be used as a biomarker to predict the prognosis and outcome of COVID-19 patients at the time of admission to hospitals and facilitate more personalized and efficient clinical management that could significantly reduce the mortality rate of such patients and allow more rapid recovery.
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