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Early Bacterial Infections After Liver Transplantation: Risk Factors, Microbiological Spectrum, and Outcomes in an Eastern European Cohort
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Iulian Buzincu, Mihaela Blaj, Eliza Isabela Buzincu, Adi-Ionuț Ciumanghel, Irina Gîrleanu, Irina Ciumanghel, Ana-Maria Trofin, Vlad Nuțu, Alexandru Năstase, Ramona Cadar, Vlad Carp, Beatrice Cobzaru, George Mălureanu, Corina Lupașcu Ursulescu and Cristian Dumitru Lupașcu
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Abstract
Early bacterial infections (EBI) remain a major cause of morbidity and mortality after liver transplantation (LT). This study aimed to characterize their incidence, microbiological spectrum, risk factors, and clinical impact in an Eastern European cohort. We retrospectively analyzed 64 adult LT recipients from
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Early bacterial infections (EBI) remain a major cause of morbidity and mortality after liver transplantation (LT). This study aimed to characterize their incidence, microbiological spectrum, risk factors, and clinical impact in an Eastern European cohort. We retrospectively analyzed 64 adult LT recipients from a tertiary center, focusing on perioperative parameters, infection profiles, and postoperative outcomes. EBI, defined as infections occurring within 30 days after transplantation and diagnosed according to CDC/NHSN criteria, occurred in 48.4% of patients. Gram-negative bacilli predominated (73.7%), mainly
Pseudomonas aeruginosa (34.2%) and
Klebsiella pneumoniae (15.8%), while
Clostridioides difficile (CDI) accounted for 18.4% of confirmed cases diagnosed by stool toxin assay. Infected patients had greater intraoperative blood loss (median 6500 mL vs. 5000 mL,
p = 0.036) and required more transfusions. The higher infection rate in our cohort may also be related to longer surgical duration. All deaths within the first postoperative year occurred among infected recipients, yet overall 30-day (7.8%) and 1-year (14.1%) mortality rates remained within the range reported internationally, suggesting that timely diagnosis and adequate management limited the impact of infections on survival. These findings emphasize the importance of infection prevention, optimized transfusion and bleeding control, and tailored antibiotic prophylaxis based on local microbiological patterns after LT.
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