Open AccessRelationship of D-dimer and prediction of pulmonary embolism in hospitalized COVID-19 patients: a multicenter study
Author(s) -
Iftikhar Nadeem,
Adeel Anwar,
Louise Jordon,
Noor Mahdi,
Masood Ur Rasool,
Jonathan Dakin,
She Lok
Publication year - 2021
Publication title -
future microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.797
H-Index - 82
eISSN - 1746-0921
pISSN - 1746-0913
DOI - 10.2217/fmb-2021-0082
Subject(s) - medicine , d dimer , youden's j statistic , pulmonary embolism , cutoff , covid-19 , receiver operating characteristic , pulmonary angiography , area under the curve , cardiology , radiology , physics , disease , quantum mechanics , infectious disease (medical specialty)
Aim: COVID-19 is a known risk factor for pulmonary embolism (PE). In this retrospective, multicenter study, we aimed to determine an optimal D-dimer cutoff to predict PE in hospitalized patients with COVID-19. Materials & methods: A total of 193 patients underwent computerized tomographic pulmonary angiography imaging and were classified into PE positive and negative groups. Physiological, radiological and biochemical parameters were compared and receiver operator curve analysis was conducted to determine a predictive D-dimer threshold. Results: An optimal D-dimer cutoff of 2494 ng/ml was selected (Youden index: 0.906), giving a sensitivity of 100% (95% CI: 100-100) and specificity of 90.62% (95% CI: 90.5-90.8) for predicting PE. Conclusion: We propose that in the absence of other clinical signs, a D-dimer threshold of 2495 ng/ml could be used with high sensitivity and specificity to predict PE in hospitalized patients with COVID-19.