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      D-dimer level is a useful predictor for mortality in patients with COVID-19: Analysis of 483 cases

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          Abstract

          Background and aims

          : COVID-19 is a multi-system disease, with coagulation abnormalities. D-dimer levels are increased in this disease. We aimed to determine the association of D-dimer levels and mortality and to establish its optimal cut off values in predicting mortality. Association of D-dimer levels with Diabetes Mellitus has also been established.

          Methods

          : Information on 483 patients with confirmed COVID-19 was retrospectively collected and analyzed. The optimal D-dimer cutoff point and C-statistic of routine tests both on admission and during hospital stay were evaluated by receiver operator characteristic (ROC) curve.

          Results

          : The D-dimer elevation (≥0.50 μg/mL) was seen in 80.1% of the hospitalized patients. D-dimer level ≥2.01 μg/mL was a significant predictor of subsequent deaths ( P < 0.01; HR, 3.165; 95% CI, 2.013–4.977). The high D-dimer values (≥0.50 μg/mL) were observed in 72 of the 75 (96%) cases with a fatal outcome. Median D-dimer values among non-survivors was 6.34 μg/mL and among survivors it was 0.94 μg/mL. A higher proportion of fatal outcomes occurred in patients with underlying disease (89.0%), most prominent of which was Diabetes Mellitus (66%). The median D-dimer value was found to be significantly high in Diabetic patients (1.68 μg/mL).

          Conclusions

          : Among the measured coagulation parameters, D-dimer during hospital stay had the highest C-index to predict in-hospital mortality in COVID-19 patients. D-dimer value ≥ 2.01 μg/mL can effectively predict in-hospital mortality in patients with COVID-19. A significant association of increased D-dimer level has been found with Diabetes Mellitus and elderly age.

          Highlights

          • •

            D-dimer ≥2.01 μg/ml FEU (fourfold increase) during hospital stay might be the optimum cutoff to predict mortality.

          • •

            Elderly age and diabetes were significantly associated with elevated D-dimer levels, disease severity and mortality.

          • •

            Median D-dimer values were calculated for age, gender, survivors/non-survivors, and diabetic/non - diabetics.

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          Most cited references20

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          Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China

          Chaolin Huang, Yeming Wang, Xingwang Li … (2020)
          Summary Background A recent cluster of pneumonia cases in Wuhan, China, was caused by a novel betacoronavirus, the 2019 novel coronavirus (2019-nCoV). We report the epidemiological, clinical, laboratory, and radiological characteristics and treatment and clinical outcomes of these patients. Methods All patients with suspected 2019-nCoV were admitted to a designated hospital in Wuhan. We prospectively collected and analysed data on patients with laboratory-confirmed 2019-nCoV infection by real-time RT-PCR and next-generation sequencing. Data were obtained with standardised data collection forms shared by WHO and the International Severe Acute Respiratory and Emerging Infection Consortium from electronic medical records. Researchers also directly communicated with patients or their families to ascertain epidemiological and symptom data. Outcomes were also compared between patients who had been admitted to the intensive care unit (ICU) and those who had not. Findings By Jan 2, 2020, 41 admitted hospital patients had been identified as having laboratory-confirmed 2019-nCoV infection. Most of the infected patients were men (30 [73%] of 41); less than half had underlying diseases (13 [32%]), including diabetes (eight [20%]), hypertension (six [15%]), and cardiovascular disease (six [15%]). Median age was 49·0 years (IQR 41·0–58·0). 27 (66%) of 41 patients had been exposed to Huanan seafood market. One family cluster was found. Common symptoms at onset of illness were fever (40 [98%] of 41 patients), cough (31 [76%]), and myalgia or fatigue (18 [44%]); less common symptoms were sputum production (11 [28%] of 39), headache (three [8%] of 38), haemoptysis (two [5%] of 39), and diarrhoea (one [3%] of 38). Dyspnoea developed in 22 (55%) of 40 patients (median time from illness onset to dyspnoea 8·0 days [IQR 5·0–13·0]). 26 (63%) of 41 patients had lymphopenia. All 41 patients had pneumonia with abnormal findings on chest CT. Complications included acute respiratory distress syndrome (12 [29%]), RNAaemia (six [15%]), acute cardiac injury (five [12%]) and secondary infection (four [10%]). 13 (32%) patients were admitted to an ICU and six (15%) died. Compared with non-ICU patients, ICU patients had higher plasma levels of IL2, IL7, IL10, GSCF, IP10, MCP1, MIP1A, and TNFα. Interpretation The 2019-nCoV infection caused clusters of severe respiratory illness similar to severe acute respiratory syndrome coronavirus and was associated with ICU admission and high mortality. Major gaps in our knowledge of the origin, epidemiology, duration of human transmission, and clinical spectrum of disease need fulfilment by future studies. Funding Ministry of Science and Technology, Chinese Academy of Medical Sciences, National Natural Science Foundation of China, and Beijing Municipal Science and Technology Commission.
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            Abnormal coagulation parameters are associated with poor prognosis in patients with novel coronavirus pneumonia

            Ning Tang, Dengju Li, Xiong Wang … (2020)
            Abstract Background In the recent outbreak of novel coronavirus infection in Wuhan, China, significantly abnormal coagulation parameters in severe novel coronavirus pneumonia (NCP) cases were a concern. Objectives To describe the coagulation feature of patients with NCP. Methods Conventional coagulation results and outcomes of 183 consecutive patients with confirmed NCP in Tongji hospital were retrospectively analyzed. Results The overall mortality was 11.5%, the non‐survivors revealed significantly higher D‐dimer and fibrin degradation product (FDP) levels, longer prothrombin time and activated partial thromboplastin time compared to survivors on admission (P < .05); 71.4% of non‐survivors and 0.6% survivors met the criteria of disseminated intravascular coagulation during their hospital stay. Conclusions The present study shows that abnormal coagulation results, especially markedly elevated D‐dimer and FDP are common in deaths with NCP.
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              ISTH interim guidance on recognition and management of coagulopathy in COVID‐19

              Jecko Thachil, Ning Tang, Satoshi Gando … (2020)
              Article 0 comments Cited 926 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Diabetes Metab Syndr
                Journal ID (iso-abbrev): Diabetes Metab Syndr
                Title: Diabetes & Metabolic Syndrome
                Publisher: Diabetes India. Published by Elsevier Ltd.
                ISSN (Print): 1871-4021
                ISSN (Electronic): 1878-0334
                Publication date PMC-release: 17 November 2020
                Publication date (Electronic): 17 November 2020
                Affiliations
                [a ]Department Of Haematology & Clinical Pathology, Apollo Hospitals, 21 Gream lane, Off Greams Road, Chennai, 600031, India
                [b ]Institute of Infectious Diseases, Apollo Hospitals, Chennai, India
                [c ]Indraprastha Apollo Hospitals, New Delhi, India
                [d ]Apollo Hospitals, Chennai, India
                Author notes
                [∗ ]Corresponding author.
                Article
                Publisher Item ID: S1871-4021(20)30472-0
                DOI: 10.1016/j.dsx.2020.11.007
                PMC ID: 7670909
                PubMed ID: 33395786
                SO-VID: 947a6706-17a4-4883-830c-8c15ae1aeede
                Copyright © © 2020 Diabetes India. Published by Elsevier Ltd. All rights reserved.
                License:

                Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

                History
                Date received : 25 October 2020
                Date revision received : 4 November 2020
                Date accepted : 6 November 2020
                Categories
                Subject: Article

                Keywords: covid-19,coronoavirus,d-dimer,mortality,diabetes
                Data availability:
                Keywords: covid-19, coronoavirus, d-dimer, mortality, diabetes

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