期刊
EUROPEAN JOURNAL OF PEDIATRICS
卷 180, 期 7, 页码 2091-2098出版社
SPRINGER
DOI: 10.1007/s00431-021-03994-4
关键词
Antimicrobial; Resistance; Susceptibility; Pediatric; Appendicitis
类别
This study found an increased proportion of Gram-positive cocci and Milleri group Streptococci in the intraperitoneal flora of patients with complicated appendicitis. Patients with Gram-positive cocci had longer hospital stays and more complicated diseases. Those with Milleri group Streptococci isolates had a higher readmission rate.
This study aims to describe the microbiology and susceptibility profile of the intraperitoneal flora in complicated appendicitis. It is a retrospective cohort study including children < 18-year-old with pathologically confirmed appendicitis, from 2007 to 2017. It included 1466 children. Intraperitoneal samples were obtained from 655 (44.7%) patients, and 201 (30.7%) had positive culture with 395 pathogens. Gram-negative rods comprised 67.6%, Gram-positive cocci 21.5%, and anaerobes 10.9% of the isolates. Gram-positive cocci were detected in 67 (37.8%) patients. Milleri group Streptococci was the most frequently isolated Gram-positive (44.7%). The proportional rate of Milleri group Streptococci from Gram-positive cocci increased from 9.5 to 56.3% (P < 0.001, OR 12.214). Patients with Gram-positive cocci had longer hospital stay (mean 9.36 + 6.385 vs 7.72 + 4.582, P = 0.036, (CI -3.165, -0.105)) and more complicated disease (89.5% vs 78.4%, P = 0.045, OR 2.342). Patients with Milleri group Streptococci isolates readmitted more frequently (26.5% vs 13.2%, P = 0.05, OR 2.37). Resistance to amoxicillin-clavulanate, gentamicin, ceftazidime, piperacillin-tazobactam, and amikacin were detected in 29.1%, 6.5%, 2.3%, 1.2%, and 0.7% of the Gram-negative rods, respectively. Conclusion: The rates of Gram-positive cocci and particularly Milleri group Streptococci in peritoneal fluid are increasing. More complicated disease and longer hospital stay in Gram-positive cocci and higher readmission rate in Milleri group Streptococci. These emphasize the role of anti-Gram-positive antimicrobials. What is known: Gram-negative rods are the main isolates in complicated appendicitis. The choice of antibiotic regimen is an unsettled issue due to resistance. What is new: Increased rate of Gram-positive cocci and Milleri group Streptococci. More complicated disease, longer hospital stay, and higher readmission rate.
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