Clinical Profile and Etiological Structure of Diseases in Children with Septic and Critical Conditions Hospitalized in a Pediatric Intensive Care Unit in Bulgaria: A Single-Center Study
DOI:
https://doi.org/10.14748/8e9w6c82Keywords:
sepsis, critical conditions, children, pediatric intensive care unitAbstract
Introduction: The history of sepsis dates back to ancient Greece, with its name being derived from the Greek word sepo, meaning decay. A large multicentered study conducted in 2020 reported that sepsis accounts for 48.9 million cases annually, resulting in over 11 million fatalities. Strengthening prevention, early diagnosis, and appropriate treatment of sepsis remains a primary strategy and objective of the World Health Organization, as outlined in the resolutions of the Seventeenth World Health Assembly.
Aim: The aim of this article is to investigate the clinical profile and etiological structure of diseases in children with septic and critical conditions hospitalized between June 2022 and January 2024 in the pediatric intensive care unit of a Bulgarian university hospital.
Materials and Methods: Over an 18-month prospective period, a total of 53 children, aged from 7 days to 18 years, with acute-onset infectious diseases or in critical conditions meeting predefined inclusion criteria were evaluated. For the purposes of the study, medical history, physical examination, and laboratory methods to determine complete blood count, blood gas analysis, coagulation and biochemical parameters, and microbiological analysis of blood were used.
Results: The relative share of children with diseases of infectious etiology was 79.2% (septic group), while those with non-infectious critical conditions accounted for 20.8%. The 13–48-month age group represented the highest relative proportion of hospitalizations (30.2%). Lower respiratory tract infections dominated in the septic group (53.4%), while intoxications were the leading cause in the critical condition group (36.4%). Microbiological identification was achieved in 42.8% of infections, with bacterial pathogens predominating over viral ones (55.6% vs. 44.4%). Escherichia coli, Streptococcus pneumoniae, and Staphylococcus aureus were among the bacterial species most frequently identified as causative agents of infections, associated with sepsis. Long-term complications following intensive treatment were observed in 9.4%.
Conclusion: Knowledge about the microbial spectrum of sepsis in childhood allows applying etiological rather than empirical antibiotic therapy, and the modern diagnostic methods ensure its timely initiation and reduction of the long-term disability risk.
References
[1] Vincent JL, Abraham E. The last 100 years of sepsis. Am J Respir Crit Care Med. 2006 Feb 1;173(3):256–63. doi: 10.1164/rccm.200510-1604OE. DOI: https://doi.org/10.1164/rccm.200510-1604OE
[2] Rudd KE, Johnson SC, Agesa KM, Shackelford KA, Tsoi D, Kievlan DR, et al. Global, regional, and national sepsis incidence and mortality, 1990–2017: analysis for the Global Burden of Disease Study. Lancet. 2020 Jan;395(10219):200–11. doi: 10.1016/S0140-6736(19)32989-7. DOI: https://doi.org/10.1016/S0140-6736(19)32989-7
[3] World Health Organization. Sepsis [Internet]. 2020 Aug. Available from: https://www.who.int/news-room/fact-sheets/detail/sepsis
[4] Bone RC, Balk RA, Cerra FB, Dellinger RP, Fein AM, Knaus WA, et al. Definitions for sepsis and organ failure and guidelines for the use of innovative therapies in sepsis. Chest. 1992 Jun;101(6):1644–55. doi: 10.1378/chest.101.6.1644. DOI: https://doi.org/10.1378/chest.101.6.1644
[5] Vincent JL, Opal SM, Marshall JC, Tracey KJ. Sepsis definitions: time for change. Lancet. 2013 Mar;381(9868):774–5. doi: 10.1016/S0140-6736(12)61815-7. DOI: https://doi.org/10.1016/S0140-6736(12)61815-7
[6] Levy MM, Fink MP, Marshall JC, Abraham E, Angus D, et al. 2001 SCCM/ESICM/ACCP/ATS/SIS International Sepsis Definitions Conference. Intensive Care Med. 2003 Apr;29(4):530–8. doi: 10.1007/s00134-003-1662-x. DOI: https://doi.org/10.1007/s00134-003-1662-x
[7] Centers for Disease Control and Prevention. Multisystem inflammatory syndrome in children (MIS-C) associated with coronavirus disease 2019 (COVID-19) [Internet]. 2020. Available from: https://emergency.cdc.gov/han/2020/han00432.asp
[8] Klein Klouwenberg PMC, Cremer OL, Van Vught LA, Ong DSY, Frencken JF, Schultz MJ, et al. Likelihood of infection in patients with presumed sepsis at the time of intensive care unit admission: a cohort study. Crit Care. 2015 Dec;19(1):319. doi: 10.1186/s13054-015-1035-1. DOI: https://doi.org/10.1186/s13054-015-1035-1
[9] Singer M, Deutschman CS, Seymour CW, Shankar-Hari M, Annane D, Bauer M, et al. The third international consensus definitions for sepsis and septic shock (Sepsis-3). JAMA. 2016 Feb 23;315(8):801. doi: 10.1001/jama.2016.0287. DOI: https://doi.org/10.1001/jama.2016.0287
[10] Carlton EF, Perry-Eaddy MA, Prescott HC. Context and implications of the new pediatric sepsis criteria. JAMA [Internet]. 2024 Jan 21 [cited 2024 Oct 12]; Available from: https://jamanetwork.com/journals/jama/fullarticle/2814299
[11] Schlapbach LJ, Watson RS, Sorce LR, Argent AC, Menon K, Hall MW, et al. International consensus criteria for pediatric sepsis and septic shock. JAMA. 2024 Feb 27;331(8):665. doi: 10.1001/jama.2024.0179. DOI: https://doi.org/10.1001/jama.2024.0179
[12] Darda VM, Iosifidis E, Volakli E, Antachopoulos C, Haidich AB, Vagdatli E, et al. Bloodstream infections due to carbapenem-resistant gram-negative bacteria in pediatric intensive care units: risk factors and outcomes. Open Forum Infect Dis. 2018 Nov 26;5(Suppl 1):S683–S683. DOI: https://doi.org/10.1093/ofid/ofy210.1955
[13] Vincent JL, Taccone F, Schmit X. Classification, incidence, and outcomes of sepsis and multiple organ failure. In: Ronco C, Bellomo R, Kellum JA, editors. Contributions to nephrology [Internet]. Basel: KARGER; 2007 [cited 2024 Nov 13]. p. 64–74. Available from: https://karger.com/books/book/2581/chapter/5745580 DOI: https://doi.org/10.1159/000102071
[14] Goldstein B, Giroir B, Randolph A. International pediatric sepsis consensus conference: definitions for sepsis and organ dysfunction in pediatrics. Pediatr Crit Care Med. 2005 Jan;6(1):2–8. doi: 10.1097/01.PCC.0000149131.72248.E6. DOI: https://doi.org/10.1097/01.PCC.0000149131.72248.E6
[15] Matics TJ, Sanchez-Pinto LN. Adaptation and Validation of a Pediatric Sequential Organ Failure Assessment Score and Evaluation of the Sepsis-3 Definitions in Critically Ill Children. JAMA Pediatr. 2017 Oct 2;171(10):e172352. DOI: https://doi.org/10.1001/jamapediatrics.2017.2352
[16] Pollack M, Patel K, Ruttimann U. PRISM III: an updated pediatric risk of mortality score. Critical care medicine. 1996 Jun 1;24:743–52. DOI: https://doi.org/10.1097/00003246-199605000-00004
[17] Leteurtre S, Duhamel A, Salleron J, Grandbastien B, Lacroix J, Leclerc F. PELOD-2: An Update of the PEdiatric Logistic Organ Dysfunction Score. Critical Care Medicine. 2013 Jul;41(7):1761–73. DOI: https://doi.org/10.1097/CCM.0b013e31828a2bbd
[18] Sanchez-Pinto LN, Bennett TD, DeWitt PE, Russell S, Rebull MN, Martin B, et al. Development and Validation of the Phoenix Criteria for Pediatric Sepsis and Septic Shock. JAMA. 2024 Feb 27;331(8):675. DOI: https://doi.org/10.1001/jama.2024.8202
[19] Watson RS, Carrol ED, Carter MJ, Kissoon N, Ranjit S, Schlapbach LJ. The burden and contemporary epidemiology of sepsis in children. Lancet Child Adolesc Health. 2024 Sep;8(9):670–81. doi: 10.1016/S2352-4642(24)00140-8. DOI: https://doi.org/10.1016/S2352-4642(24)00140-8
[20] Carlton EF, Gebremariam A, Maddux AB, McNamara N, Barbaro RP, Cornell TT, et al. New and progressive medical conditions after pediatric sepsis hospitalization requiring critical care. JAMA Pediatr. 2022 Nov 7;176(11):e223554. doi: 10.1001/jamapediatrics.2022.3554. DOI: https://doi.org/10.1001/jamapediatrics.2022.3554
[21] Hayes R, Hartnett J, Semova G, Murray C, Murphy K, Carroll L, et al. Neonatal sepsis definitions from randomized clinical trials. Pediatr Res. 2023 Apr;93(5):1141–8. doi: 10.1038/s41390-021-01749-3. DOI: https://doi.org/10.1038/s41390-021-01749-3
[22] Weiss SL, Fitzgerald JC, Pappachan J, Wheeler D, Jaramillo-Bustamante JC, Salloo A, et al. Global epidemiology of pediatric severe sepsis: the Sepsis Prevalence, Outcomes, and Therapies Study. Am J Respir Crit Care Med. 2015 May 15;191(10):1147–57. doi: 10.1164/rccm.201412-2323OC. DOI: https://doi.org/10.1164/rccm.201412-2323OC
[23] Pecheva N. Neonatal bacterial sepsis – problems of diagnosis, treatment, and prevention. Pleven: Dissertation; 1994.
[24] Gladilova A, Ribarova N. Dynamics and epidemiological characteristics of nosocomial infections in neonates during 2010–2011. National University Cardiology Hospital - Sofia; Department of Epidemiology, MU Sofia; 2012.
[25] Vladimirova N, Minkova A, Bogdanov N, Petkova K, Gecova Z, Kamenov G. Acute infectious diseases in Bulgaria in 2023 [Internet]. Available from: https://www.ncipd.org/images/UserFiles/File/Analizi/Analysis_ZB%20_2023%20FINAL.pdf
[26] Watson RS, Carcillo JA, Linde-Zwirble WT, Clermont G, Lidicker J, Angus DC. The epidemiology of severe sepsis in children in the United States. Am J Respir Crit Care Med. 2003 Mar 1;167(5):695–701. doi: 10.1164/rccm.200207-682OC. DOI: https://doi.org/10.1164/rccm.200207-682OC
[27] Martinot A, Leteurtre S, Grandbastien B, Duhamel A, Leclerc F. Characteristics of patients and resource use in French pediatric intensive care units. Arch Pediatr. 1997 Aug;4(8):730–6. doi: 10.1016/s0929-693x(97)83410-0. DOI: https://doi.org/10.1016/S0929-693X(97)83410-0
[28] Martinón-Torres F, Salas A, Rivero-Calle I, Cebey-López M, Pardo-Seco J, Herberg JA, et al. Life-threatening infections in children in Europe (the EUCLIDS Project): a prospective cohort study. Lancet Child Adolesc Health. 2018 Jun;2(6):404–14. doi: 10.1016/S2352-4642(18)30113-5. DOI: https://doi.org/10.1016/S2352-4642(18)30113-5
[29] Southeast Asia Infectious Disease Clinical Research Network. Causes and outcomes of sepsis in Southeast Asia: a multinational multicenter cross-sectional study. Lancet Glob Health. 2017 Feb;5(2):e157–67. doi: 10.1016/S2214-109X(17)30007-4. DOI: https://doi.org/10.1016/S2214-109X(17)30007-4
[30] Agyeman PKA, Schlapbach LJ, Giannoni E, Stocker M, Posfay-Barbe KM, Heininger U, et al. Epidemiology of blood culture-proven bacterial sepsis in children in Switzerland: a population-based cohort study. Lancet Child Adolesc Health. 2017 Oct;1(2):124–33. doi: 10.1016/S2352-4642(17)30010-X. DOI: https://doi.org/10.1016/S2352-4642(17)30010-X
[31] Ikuta KS, Swetschinski LR, Robles Aguilar G, Sharara F, Mestrovic T, Gray AP, et al. Global mortality associated with 33 bacterial pathogens in 2019: a systematic analysis for the Global Burden of Disease Study 2019. The Lancet. 2022 Dec;400(10369):2221–48. doi: 10.1016/S0140-6736(22)02185-7. DOI: https://doi.org/10.1016/S0140-6736(22)02185-7
[32] Institute for Health Metrics and Evaluation [Internet]. Available from: https://vizhub.healthdata.org/microbe/
[33] Martinez RM, Wolk DM. Bloodstream Infections. Hayden RT, Wolk DM, Carroll KC, Tang YW, editors. Microbiol Spectr. 2016 Aug 12;4(4):4.4.42. DOI: https://doi.org/10.1128/microbiolspec.DMIH2-0031-2016
[34] Wieser A, Schneider L, Jung J, Schubert S. MALDI-TOF MS in microbiological diagnostics—identification of microorganisms and beyond (mini review). Appl Microbiol Biotechnol. 2012 Feb;93(3):965–74. doi: 10.1007/s00253-011-3783-4. DOI: https://doi.org/10.1007/s00253-011-3783-4
[35] El-Nawawy A, Ashraf GA, Antonios MAM, Meheissen MA, El-Alfy MMR. Incidence of Multidrug-Resistant Organism Among Children Admitted to Pediatric Intensive Care Unit in a Developing Country. Microbial Drug Resistance. 2018 Oct;24(8):1198–206. doi: 10.1089/mdr.2017.0414. DOI: https://doi.org/10.1089/mdr.2017.0414
[36] Cabral C, Zhang T, Oliver I, Little P, Yardley L, Lambert H. Influences on use of antibiotics without prescription by the public in low- and middle-income countries: a systematic review and synthesis of qualitative evidence. JAC-Antimicrobial Resistance. 2024 Oct 25;6(5):dlae165. doi: 10.1093/jacamr/dlae165. DOI: https://doi.org/10.1093/jacamr/dlae165
[37] Ibiebele I, Algert CS, Bowen JR, Roberts CL. Pediatric admissions that include intensive care: a population-based study. BMC Health Serv Res. 2018 Dec;18(1):264. doi: 10.1186/s12913-018-3041-x. DOI: https://doi.org/10.1186/s12913-018-3041-x
[38] Halilova M, Krumova D, Teneva T, Pechilkov D, Mladenov B, Daskalova I, Hadzhieva-Hristova A, Zdravkov B, Ivanov I, Avdzhieva D, Iotova V. Current review of the state of pediatric intensive care units in Bulgaria at the end of 2021. Pediatria. 2022;4.