Post-COVID Mucormycosis: An Emerging Threat in Developing Countries - A Prospective Review
DOI:
https://doi.org/10.33084/bjop.v7i4.7690Keywords:
Mucormycosis, Corticosteroids, COVID-19, Diabetes mellitusAbstract
COVID-19, with its rapidly mutating strains, poses a significant global health challenge. Recent reports of a surge in mucormycosis cases among COVID-19 patients highlight the urgent need for understanding and addressing this critical complication. This review explores the factors contributing to mucormycosis development in COVID-19 patients and outlines strategies for prevention and management. Several factors, including high glucose levels (diabetes, onset, steroid-induced hyperglycemia), low oxygen levels, elevated iron levels (especially ferritin), metabolic acidosis, and diabetic ketoacidosis, can facilitate the germination of mucor spores. COVID-19 patients with underlying conditions such as diabetes, cancer, or organ transplants are particularly susceptible to mucormycosis due to their immunocompromised state. The growth of the mucor pathogen requires free iron, which is elevated in conditions like diabetic ketoacidosis. This elevated iron level promotes the formation of Cot-H, a crucial component of fungal growth, leading to mucormycosis. Additionally, comorbidities and corticosteroids can suppress the immune system, hindering the body's ability to fight off infections like mucormycosis. Therefore, it is imperative to avoid the indiscriminate use of corticosteroids. Strict control of acute hyperglycemia and comprehensive monitoring of diabetic and immunocompromised COVID-19 patients are essential preventive measures. By addressing these factors, healthcare providers can mitigate the risk of mucormycosis in COVID-19 patients and improve overall outcomes.
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References
Chorba T. The Concept of the Crown and Its Potential Role in the Downfall of Coronavirus. Emerg Infect Dis. 2020;26(9):2302-5. DOI: 10.3201/eid2609.AC2609; PMCID: PMC7454052
Cucinotta D, Vanelli M. WHO Declares COVID-19 a Pandemic.Acta Biomed. 2020;91(1):157-60. DOI: 10.23750/abm.v91i1.9397; PMCID: PMC7569573; PMID: 32191675
Chakraborty D, Yolmo NL. Fright of Covid-19 and its Future: A Review. J Palliat Care Med. 2020;10(4):1000369. DOI: 10.4172/2165-7386.1000369
Paltauf A. Mycosis mucorina. Archiv F Pathol Anat. 1885;102:543-64. DOI: 10.1007/BF01932420
Baker RD. Mucormycosis-a new disease? J Am Med Assoc. 1957; 163(10):805-8. DOI: 10.1001/jama.1957.02970450007003; PMID: 13405736
Mahalaxmi I, Jayaramayya K, Venkatesan D, Subramaniam MD, Renu K, Vijayakumar P, et al. Mucormycosis: An opportunistic pathogen during COVID-19. Environ Res. 2021;201:111643. DOI: 10.1016/j.envres.2021.111643; PMCID: PMC8258024; PMID: 34237335
Singh R, Mittal G, kakati B, Koul N. An Observational Study of Fungal Infections in COVID-19: Highlighting the Role of Mucormycosis in Tertiary Healthcare Settings. Cureus. 2024;16(3):e57295. DOI: 10.7759/cureus.57295; PMCID: PMC11059081; PMID: 38690487
Chillana S, Chilana KAM. COVID-19 and Mucormycosis: A Black Fungus Disaster? Indian J Dermatol. 2022;67(5):535-8. DOI: 10.4103/ijd.ijd_17_22; PMCID: PMC9971779; PMID: 36865825
Pollard CA, Morran MP, Nestor-Kalinoski AL. The COVID-19 pandemic has led to a global health crisis, with millions of deaths reported to the WHO. Physiol Genomics. 2020;52(11):549-57. DOI: 10.1152/physiolgenomics.00089.2020; PMCID: PMC7686876; PMID: 32991251
Skiada A, Pavleas I, Drogari-Apiranthitou M. Epidemiology and diagnosis of mucormycosis: An Update. J Fungi. 2020;6(4):265. DOI: 10.3390/jof6040265; PMCID: PMC7711598; PMID: 33147877
Chander J, Kaur M, Singla N, Punia RPS, Singhal SK, Attri AK, et al. Mucormycosis: Battle with the Deadly Enemy over a Five-Year Period in India. J Fungi. 2018;4(2):46. DOI: 10.3390/jof4020046; PMCID: PMC6023269; PMID: 29642408
Prakash H, Chakrabarti A. Global Epidemiology of Mucormycosis. J Fungi. 2019;5(1):26. DOI: 10.3390/jof5010026; PMCID: PMC6462913; PMID: 30901907
Jeong W, Keighley C, Wolfe R, Lee WL, Slavin MA, Kongn DCM, et al. The epidemiology and clinical manifestations of mucormycosis: a systematic review and meta-analysis of case reports. Clin Microbiol Infect. 2019;25(1):26–34. DOI: 10.1016/j.cmi.2018.07.011; PMID: 30036666
Singh AK, Singh R, Joshi SR, Misra A. Mucormycosis in COVID-19: A systematic review of cases reported worldwide and in India. Diabetes Metab Syndr. 2021;15(4):102146. DOI: 10.1016/j.dsx.2021.05.019; PMCID: PMC8137376; PMID: 34192610
Faria L, Mahin T, Qader MA, Ahmed M, Anwar MA. A Case of Post-COVID-19 Rhino-Cerebral Mucormycosis in an Immunocompromised Patient. Cureus. 2023;15(7):e42652. DOI: 10.7759/cureus.42652; PMCID: PMC10461695; PMID: 37644947
Mehta S, Pandey A. Rhino-Orbital Mucormycosis Associated With COVID-19. Cureus 2020;12(9):e10726. DOI: 10.7759/cureus.10726; PMCID: PMC7599039; PMID: 33145132
Bayram N, Ozsaygılı C, Sav H, Tekin Y, Gundogan M, Pangal E, et al., Susceptibility of severe COVID-19 patients to rhino-orbital mucormycosis fungal infection in different clinical manifestations. Jpn J Ophthalmol. 2021;65(4):515-25. DOI: 10.1007/s10384-021-00845-5; PMCID: PMC8165350; PMID: 34057620
Moorthy A, Gaikwad R, Krishna S, Hegde R, Tripathi KK, Kale PG, et al. SARS-CoV-2, Uncontrolled Diabetes and Corticosteroids—An Unholy Trinity in Invasive Fungal Infections of the Maxillofacial Region? A Retrospective, Multi-centric Analysis. J Maxillofac Oral Surg. 2021;20(3):418-25. DOI: 10.1007/s12663-021-01532-1; PMCID: PMC7936599; PMID: 33716414
Veisi A, Bagheri A, Eshaghi M, Rikhtehgar MH, Kanavi MR, Farjad R. Rhino-orbital mucormycosis during steroid therapy in COVID-19 patients: A case report. Eur J Ophthalmol. 2022;32(4):NP11-6. DOI: 10.1177/11206721211009450; PMCID: PMC9294610; PMID: 33843287
Satish D, Joy D, Ross A, Balasubramanya. Mucormycosis coinfection associated with global COVID-19: acase series from India. Int J Otorhinolaryngol Head Neck Surg. 2021;7(5):815-20. DOI: 10.18203/issn.2454-5929.ijohns20211574
Revannavar SM, Supriya PS, Samaga L, Vineeth VK. COVID-19 triggering mucormycosis in a susceptible patient: a new phenomenon in the developing world? BMJ Case Rep. 2021;14(4):e241663. DOI: https://doi.org/10.1136/bcr-2021-241663; PMCID: PMC8088249; PMID: 33906877
Hassan FA, Aljahli M, Molani F, Almomen A. Rhino-orbito-cerebral mucormycosis in patients with uncontrolled diabetes: A case series. Int J Surg Case Rep. 2020;73:324–7. DOI: 10.1016/j.ijscr.2020.07.011; PMCID: PMC7393455; PMID: 32738774
Pandilwar PK, Khan K, Shah K, Sanap M, Unnikrishnan KSA, Nerurkar S. Mucormycosis: A rare entity with rising clinical presentation inimmunocompromised hosts. Int J Surg Case Rep. 2020;77:57–61. DOI: 10.1016/j.ijscr.2020.10.075; PMCID: PMC7644794; PMID: 33152595
El-Shabasy RM, Nayel MA, Taher MM, Abdelmonem R, Shoueir KR, Kenawy ER. Three waves changes, new variant strains, and vaccination effect against COVID-19 pandemic. Int J Biol Macromol. 2022;204:161-8. DOI: 10.1016/j.ijbiomac.2022.01.118; PMCID: PMC8782737; PMID: 35074332
Thakur V, Bhola S, Thakur P, Patel SKS, Kulshrestha S, Ratho RK, et al. Waves and variants of SARS-CoV-2: understanding the causes and effect of the COVID-19 catastrophe. Infection. 2022;50(2):309-25. DOI: 10.1007/s15010-021-01734-2; PMCID: PMC8675301; PMID: 34914036
Moore S, Hill EM, Tildesley MJ, Dyson L, Keeling MJ. Vaccination and non-pharmaceutical interventions for COVID-19: a mathematical modelling study. Lancet Infect Dis. 2021;21(6):793-802. DOI: 10.1016/s1473-3099(21)00143-2; PMCID: PMC7972312; PMID: 33743847
Islam MA. A review of SARS-CoV-2 variants and vaccines: Viral properties, mutations, vaccine efficacy, and safety. Infect Med. 2023;2(4):247-61. DOI: 10.1016/j.imj.2023.08.005; PMCID: PMC10774670; PMID: 38205179
Weinreich DM, Sivapalasingam S, Norton T, Ali S, Gao H, Bhore R, et al. REGN-COV2, a Neutralizing Antibody Cocktail, in Outpatients with Covid-19. N Engl J Med. 2021;384(3):238-51. DOI: 10.1056/NEJMoa2035002; PMCID: PMC7781102; PMID: 33332778
Baum A, Fulton BO, Wloga E, Copin R, Pascal KE, Russo V, et al. Antibody cocktail to SARS-CoV-2 spike protein prevents rapid mutational escape seen with individual antibodies. Science 2020;369(6506):1014–8. DOI: 10.1126/science.abd0831; PMCID: PMC7299283; PMID: 32540904
Hoenigl M, Seidel D, Carvalho A, Rudramurthy SM, Arastehfar A, Gangneuz JP, et al. The emergence of COVID-19 associated mucormycosis: a review of cases from 18 countries. Lancet Microbe. 2022;3(7):e543-52. DOI: 10.1016/s2666-5247(21)00237-8; PMCID: PMC8789240; PMID: 35098179
Sharma A, Goel A. Mucormycosis: risk factors, diagnosis, treatments, and challenges during COVID-19 pandemic. Folia Microbiol. 2022;67(3):363-87. DOI: 10.1007/s12223-021-00934-5; PMCID: PMC8881997; PMID: 35220559
Parfrey NA. Improved diagnosis and prognosis of mucormycosis. A clinicopathologic study of 33 cases. Medicine. 1986;65(2):113-23. DOI: 10.1097/00005792-198603000-00004; PMID: 3951358
Howard DH. Iron gathering by zoopathogenic fungi. FEMS Immunol Med Microbiol. 2004;40(2):95-100. DOI: 10.1016/S0928-8244(03)00301-8; PMID: 15040387
Howard DH. Acquisition, transport, and storage of iron by pathogenic fungi. Clin Microbiol Rev 1999;12(3):394–404. DOI: 10.1128/cmr.12.3.394; PMCID: PMC100245; PMID: 10398672
Gebremariam T, Lin L, Liu M, Kontoyiannis DP, French S, Edwards Jr JE, et al., Bicarbonate correction of ketoacidosis alters host-pathogen interactions and alleviates mucormycosis. J Clin Invest. 2016;126(6):2280-94. DOI: 10.1172/jci82744; PMCID: PMC4887168; PMID: 27159390
Ibrahim AS, Spellberg B, Walsh TJ, Kontoyiannis DP. Pathogenesis of Mucormycosis. Clin Infect Dis. 2012;54(Suppl 1):S16–22. DOI: 10.1093/cid/cir865; PMCID: PMC3286196; PMID: 22247441
Hassan MIA, Voigt K. Pathogenicity patterns of mucormycosis: epidemiology, interaction with immune cells and virulence factors. Med Mycol. 2019;57(Suppl 2):S245–56. DOI: 10.1093/mmy/myz011; PMCID: PMC6394756; PMID: 30816980
Mirza M, Verma M, Sahoo SS, Roy S, Kakkar R, Singh DK. India's Multi-Sectoral Response to Oxygen Surge Demand during COVID-19 Pandemic: A Scoping Review. Indian J Community Med. 2023;48(1):31-40. DOI: 10.4103/ijcm.ijcm_665_22; PMCID: PMC10112770; PMID: 37082381
Alshahawey MG, El-Housseiny GS, Elsayed NS, Alshahrani MY, Wakeel LM, Aboshanab KM. New insights on mucormycosis and its association with the COVID-19 pandemic. Future Sci OA. 2021;8(2):FSO772. DOI: 10.2144/fsoa-2021-0122; PMCID: PMC8686842; PMID: 35059222
Spellberg B, Walsh TJ, Kontoyiannis DP, Edwards Jr J, Ibrahim AS. Recent advances in the management of mucormycosis: from bench to bedside. Clin Infect Dis. 2009;48(12):1743-51. DOI: 10.1086/599105; PMCID: PMC2809216; PMID: 19435437
Smith C, Lee SC. Current treatments against mucormycosis and future directions. PLoS Pathog. 2022;18(10):e1010858. DOI: 10.1371/journal.ppat.1010858; PMCID: PMC9560507; PMID: 36227854
Dwivedi AK. Black Fungus/Mucormycosis and Homeopathic Treatment. Int J Sci Res. 2021:10(8):71-2. DOI: 10.36106/ijsr
Wolthers MS, Schmidt G, Gjørup CA, Helweg-Larsen J, Rubek N, Jensen LT. Surgical management of rhinocerebral mucormycosis: A case series. JPRAS Open. 2021;30:33-7. DOI: 10.1016/j.jpra.2021.04.013; PMCID: PMC8358096; PMID: 34401438
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