Blood Culture Evaluation for Carbapenem Exposure in Pyogenic Liver Abscess: A Two-Center Retrospective Study Shuangjun He Shanghai Jiao Tong University School of Medicine Aliated Renji Hospital Jie Yu Shanghai Jiao Tong University School of Medicine Aliated Renji Hospital Hairong Wang Shanghai Jiao Tong University School of Medicine Aliated Xinhua Hospital Lifeng Wang Shanghai Jiao Tong University School of Medicine Aliated Renji Hospital Yi Chen Shanghai Jiao Tong University School of Medicine Aliated Renji Hospital Wei Zhou (
[email protected] ) Shanghai Jiaotong University School of Medicine Aliated Renji Hospital https://orcid.org/0000-0001- 6560-1956 Research article Keywords: pyogenic liver abscess, blood culture, carbapenems, extended-spectrum beta-lactamase, sepsis Posted Date: November 9th, 2020 DOI: https://doi.org/10.21203/rs.3.rs-102320/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/15 Abstract Background: High antibiotic consumption in pyogenic liver abscess (PLA) is unnecessary. Using the databases of two centers, we retrospectively evaluated the effects of blood culture on the exposure to carbapenems in patients with PLA. Methods: All patients diagnosed with PLA at two comprehensive tertiary care centers from 2014 to 2020 were assessed. Demographics and clinical data were analyzed, and multiple regression analysis was performed to investigate the association between blood culture and exposure to carbapenems after controlling for potential confounders. Results: Blood culture results were available in 110 (46.0%) patients, of whom 44 (40.0%) patients were tested positive on bacterial culture. The blood culture positivity rate was signicantly higher in the sepsis subgroup than in the non-sepsis subgroup (58.1% vs.