PMID- 32583809 OWN - NLM STAT- MEDLINE DCOM- 20201008 LR - 20201218 IS - 0974-7559 (Electronic) IS - 0019-6061 (Print) IS - 0019-6061 (Linking) VI - 57 IP - 9 DP - 2020 Sep 15 TI - COVID-19 Associated Hemophagocytic Lymphohistiocytosis and Coagulopathy: Targeting the Duumvirate. PG - 827-833 LID - S097475591600204 [pii] AB - CONTEXT: Preliminary data on coexistence of secondary hemophagocytic lymphohistiocytosis syndrome (HLH) and disseminated intravascular coagulation (DIC) in critically ill children with novel coronavirus disease (COVID-19) are emerging. Herein, we summarize the available literature and fill-in the gaps in this regard. EVIDENCE ACQUISITION: We have performed a literature search for articles in PubMed, EMBASE and Google Scholar databases till May 12, 2020, with following keywords: "COVID-19", "SARS-CoV-2", "HLH", "HScore", "coagulopathy", "D-dimer", "cytokine storm", "children" and "pediatrics" with interposition of Boolean operator "AND". RESULTS: Children presenting with moderate-severe COVID-19 and Kawasaki disease shock-like syndrome exhibit peripheral blood picture analogous to HLH. HScore, a validated tool to diagnose HLH, has been suggested to screen severe COVID-19 patients for cytokine storm. However, HScore faces certain limitations in this scenario. It may be more pragmatic to use 'high D-dimer' (> 3 microg/mL) instead of 'low fibrinogen' to facilitate early detection of cytokine storm. COVID-19 associated coagulopathy resembles hypercoagulable form of DIC with bleeding being rarely reported. Although the International Society on Thrombosis and Haemostasis (ISTH) interim guidance recommends low molecular weight heparin in all hospitalized patients, data is lacking in population below 14 years of age. However, in the presence of life-threatening thromboembolic event or symptomatic acro-ischemia, unfractionated heparin (UFH) should be used with caution. CONCLUSIONS: HScore can be used as a complement to clinical decision for initiating immunosuppression. Children with moderate-to-severe COVID-19, especially those with documented thrombocytopenia or chilblains, should be regularly monitored for coagulopathy. FAU - Bhattacharjee, Sukrita AU - Bhattacharjee S AD - Institute of Hematology and Transfusion Medicine, Medical College and Hospital, Kolkata, West Bengal, India. Correspondence to: Dr Sukrita Bhattacharjee, Department of Hematology, Institute of Hematology and Transfusion Medicine, Medical College and Hospital, Kolkata, India. skrtbhttchry@gmail.com. FAU - Banerjee, Mainak AU - Banerjee M AD - Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India. FAU - Pal, Rimesh AU - Pal R AD - Post Graduate Institute of Medical Education and Research, Chandigarh, India. LA - eng PT - Journal Article PT - Review DEP - 20200624 PL - India TA - Indian Pediatr JT - Indian pediatrics JID - 2985062R SB - IM MH - *Betacoronavirus MH - Blood Coagulation Disorders/*diagnosis/therapy/*virology MH - COVID-19 MH - Coronavirus Infections/*complications/diagnosis/therapy MH - Humans MH - Lymphohistiocytosis, Hemophagocytic/*diagnosis/therapy/*virology MH - Pandemics MH - Pneumonia, Viral/*complications/diagnosis/therapy MH - SARS-CoV-2 PMC - PMC7498551 EDAT- 2020/06/26 06:00 MHDA- 2020/10/09 06:00 PMCR- 2020/09/18 CRDT- 2020/06/26 06:00 PHST- 2020/06/26 06:00 [pubmed] PHST- 2020/10/09 06:00 [medline] PHST- 2020/06/26 06:00 [entrez] PHST- 2020/09/18 00:00 [pmc-release] AID - S097475591600204 [pii] AID - 1962 [pii] AID - 10.1007/s13312-020-1962-z [doi] PST - ppublish SO - Indian Pediatr. 2020 Sep 15;57(9):827-833. doi: 10.1007/s13312-020-1962-z. Epub 2020 Jun 24.