National Maternity Hospital, Holles Street, Dublin, Ireland.
Children Health Ireland (CHI) Crumlin, Cooley Road, Dublin, Ireland.
Ir Med J. 2022 Sep 15;115(8):648.
Aim This audit is performed to see the bacteriology profiles in early-onset sepsis (EOS) and late-onset sepsis (LOS) to compare the microorganisms identified and the antibiotic sensitivity results against hospitals' guidelines for empiric treatment of early and late-onset sepsis. Methods We retrospectively collected the neonate's microbiological data from the laboratory which included the date blood culture (BC) samples were collected, patients' day of life when the samples were collected to determine whether it was EOS or LOS, time to positivity of BC, and antibiotic susceptibility results. Results In EOS, most infection was caused by Gram-positive organisms which were 12 out of 14 isolates (85.7%) with GBS as the most common pathogen identified. In LOS, the number of infections caused by Gram-negative organisms, which were 14 of 25 isolates (56%) was higher than those caused by Gram-positive organisms, which were 11 out of 25 isolates (44%). E. coli was identified as the leading pathogen causing BSI. All organisms were sensitive to the antibiotics used according to the protocol. Conclusion Escherichia coli was the most common organism and was sensitive to the first-line antibiotics used. Group B Streptococcus is still the main pathogen in EOS. The rate of antibiotic resistance is low. The audit showed the importance of analysing the bacteriological and antibiotic susceptibility pattern to ensure optimal treatments are administered to infants.
本审计旨在观察早发性败血症(EOS)和晚发性败血症(LOS)的细菌学特征,比较鉴定出的微生物和抗生素敏感性结果与医院对早发性和晚发性败血症经验性治疗的指南。
我们回顾性地从实验室收集了新生儿的微生物学数据,包括采集血培养(BC)样本的日期、样本采集时患者的日龄以确定是 EOS 还是 LOS、BC 阳性的时间以及抗生素敏感性结果。
在 EOS 中,大多数感染是由革兰氏阳性菌引起的,14 株分离株中有 12 株(85.7%)为 GBS,是最常见的病原体。在 LOS 中,革兰氏阴性菌引起的感染数量(25 株中有 14 株,占 56%)高于革兰氏阳性菌引起的感染数量(25 株中有 11 株,占 44%)。大肠杆菌被确定为导致 BSI 的主要病原体。所有的病原体都对根据方案使用的抗生素敏感。
大肠杆菌是最常见的病原体,且对一线抗生素敏感。B 组链球菌仍然是 EOS 的主要病原体。抗生素耐药率较低。该审计显示了分析细菌学和抗生素敏感性模式的重要性,以确保为婴儿提供最佳治疗。