Sala Anna, Pivetti Valentina, Vittorini Alessandra, Viggiano Claudia, Castoldi Francesca, Fabiano Valentina, Lista Gianluca, Cavigioli Francesco
Department of Neonatology and Neonatal Intensive Care Unit, V. Buzzi Children's Hospital, 20154 Milan, Italy.
Department of Biomedical and Clinical Sciences, University of Milan, 20157 Milan, Italy.
Pathogens. 2024 Mar 7;13(3):234. doi: 10.3390/pathogens13030234.
Coagulase-negative staphylococci (CoNS) are reportedly responsible for 50-60% of bloodstream infections in very preterm (<1500 g) infants in neonatal intensive care units (NICUs). is an increasingly prevalent pathogen in the neonatal setting, frequently causing central-line-associated bloodstream infections (CLABSIs) that can be difficult to eradicate. Central venous catheter (CVC) removal versus in situ treatment with CoNS CLABSIs is a controversial treatment strategy with no clear consensus. We reviewed all CLABSIs in our NICU between 2019 and 2022, focusing on the role of catheter removal in eradication. Among the 25 patients, 17 CVCs were removed after diagnosis, leading to a 76.5% eradication rate in this group. Three infants had a persistently positive blood culture after CVC substitution. A new catheter was then inserted after a 48 h washout period, resulting in resolution of the infection. Only two of the eight patients (25%) who retained their catheter after diagnosis achieved infection eradication with antibiotic therapy alone. When feasible, catheter removal seems to be the most effective strategy for eradicating CLABSIs, sometimes even requiring a 48 h washout period before reinsertion. Further studies on this topic are needed to better standardize the management of this type of infection.
据报道,凝固酶阴性葡萄球菌(CoNS)在新生儿重症监护病房(NICU)中导致了50%-60%的极早产儿(<1500克)血流感染。在新生儿环境中,CoNS是一种日益普遍的病原体,经常引起难以根除的中心静脉导管相关血流感染(CLABSIs)。对于CoNS CLABSIs,移除中心静脉导管(CVC)与原位治疗是一种有争议的治疗策略,尚无明确共识。我们回顾了2019年至2022年期间我们NICU的所有CLABSIs,重点关注导管移除在根除感染中的作用。在25例患者中,17例在诊断后移除了CVC,该组的根除率为76.5%。3例婴儿在更换CVC后血培养持续阳性。在48小时的冲洗期后插入了一根新导管,感染得以解决。在诊断后保留导管的8例患者中,只有2例(25%)仅通过抗生素治疗实现了感染根除。在可行的情况下,移除导管似乎是根除CoNS CLABSIs的最有效策略,有时甚至需要在重新插入前进行48小时的冲洗期。需要对该主题进行进一步研究,以更好地规范这类感染的管理。