6. Clinical, subclinical features and results of Staphylococcus aureus sepsis treatment in newborns

Le Duc Quang, Nguyen Thi Quynh Nga

Main Article Content

Abstract

The study was conducted to describe the clinical, subclinical and therapeutic outcomes of Staphylococcus aureus (S.aureus) sepsis in newborns at the Neonatal Center, National Children's Hospital from January 2022 to June 2023. Among the 38 neonatans, hospitalizations were dominated by poor feeding (78.9%), fever (76.3%), and lethargy (34.2%). Respiratory manifestations accounted for 71.1%, the majority being tachypnea (44.7%) and moist rales (44.7%). Lbaoratory results shows leukocyte ratio ≥ 20 G/L (39.5%), < 5 G/L (10.6%), granulocytopenia < 1.5 G/L (7.8%), thrombocytopenia < 150 G/L (18.8%), CRP ≥ 15 mg/L (78.9%). X-ray lesions are diverse as faint nodules (73.6%), consolidation (39.5%), pleural effusion (21.1%), pneumothorax (15.8%), air balloons (7.8%). There were 25/38 (65.8%) solitary positive blood culture patients, 13/38 (34.2%) combined with another site. S. aureus is also sensitive to many antibiotics such as vancomycin (100%), linezolid (100%), ciprofloxacin (92.1%), and levofloxacin (92.1%). The average duration of treatment was 21.2 ± 11.8 days, the mortality rate was 13.2%. Clinical and subclinical manifestations of S. aureus in neonates are diverse, often in the respiratory organs. Despite being sensitive to many antibiotics, many cases do not respond to treatment, leading to high mortality. As such, it is important  to improve early diagnosis and timely treatment of the disease.

Article Details

References

1. Taylor TA, Unakal CG. Staphylococcus aureus Infection. StatPearls. June 10, 2023.
2. Vasiljević B, Antonović O, Maglajlić-Djukić S, et al. [The serum level of C-reactive protein in neonatal sepsis]. Srp Arh Celok Lek. 2008; 136(5-6): 253-257. doi:10.2298/sarh0806253v.
3. Ortiz de Zárate M, Sáenz C, Cimbaro Canella R, et al. Prevalence of microbiologically confirmed neonatal sepsis at a maternity center in the City of Buenos Aires. Arch Argent Pediatr. 2023; 121(3): e202202779. doi:10.5546/aap.2022-02779.eng.
4. Ericson JE, Popoola VO, Smith PB, et al. Burden of Invasive Staphylococcus aureus Infections in Hospitalized Infants. JAMA Pediatr. 2015 Dec; 169(12): 1105-11. doi: 10.1001/jamapediatrics.2015.2380.
5. Sattler CA, Mason EO, Kaplan SL. Prospective comparison of risk factors and demographic and clinical characteristics of community-acquired, methicillin-resistant versus methicillin-susceptible Staphylococcus aureus infection in children. Pediatr Infect Dis J. 2002; 21(10): 910-917. doi:10.1097/00006454-200210000-00005.
6. Nguyễn Thị Quỳnh Nga (2020), Nhiễm khuẩn sơ sinh, Bài giảng Nhi khoa, Tập 1, Nhà xuất bản Y học, Trường Đại học Y Hà Nội, trang 119-129.
7. James S. Lewis II, PharmD, et al (2023), Performance Standards for Antimicrobial Susceptibility Testing; Twenty-Fifth Informational Supplement. CLSI document M100-S25. Wayne, PA - Z-Library.
8. Shadbolt R, We MLS, Kohan R, et al. Neonatal Staphylococcus Aureus Sepsis: a 20-year Western Australian experience. J Perinatol. 2022; 42(11): 1440-1445. doi:10.1038/s41372-022-01440-3.
9. Đỗ Trọng Đạt (2020). Đặc điểm lâm sàng, tính nhạy cảm kháng sinh của vi khuẩn và nhận xét kết quả điều trị nhiễm khuẩn huyết do tụ cầu vàng tại Bệnh viện Nhi trung ương, Luận văn Thạc sĩ y học, Trường Đại Học Y Hà Nội.
10. Hamdy RF, Hsu AJ, Stockmann C, et al. Epidemiology of Methicillin-Resistant Staphylococcus aureus Bacteremia in Children. Pediatrics. 2017; 139(6): e20170183. doi:10.1542/peds.2017-0183.
11. Celik IH, Hanna M, Canpolat FE, et al. Diagnosis of Neonatal Sepsis: The Past, Present and Future. Pediatr Res. 2022; 91(2): 337-350. doi:10.1038/s41390-021-01696-z.
12. Shittu AO, Okon K, Adesida S, et al. Antibiotic resistance and molecular epidemiology of Staphylococcus aureus in Nigeria. BMC Microbiol. 2011 May 5; 11:92. doi: 10.1186/1471-2180-11-92.
13. Dong Q, Liu Y, Li W, et al. Phenotypic and Molecular Characteristics of Community-Associated Staphylococcus aureus Infection in Neonates. Infect Drug Resist. 2020; 13:4589-4600. doi:10.2147/IDR.S284781.
14. Miles F, Voss L, Segedin E,. Review of Staphylococcus aureus infections requiring admission to a paediatric intensive care unit. Arch Dis Child. 2005; 90(12):1274-1278. doi:10.1136/adc.2005.074229.