Abstract
Abstract Background and Aims Tunneled double-lumen catheters are increasingly used as permanent vascular access in hemodialysis patients, particularly in those with limited vascular access options. Catheter-related bloodstream infection (CRBSI) is a major cause of hospitalization with increased mortality and cost. The purpose is to study the effect of the pathogen on the clinical course of the hemodialysis patients with CRBSI. Method Patients hospitalized in our department from 11/2021 to 12/2022 with established CRBSI were retrospectively studied. Their demographics, duration of hospitalization, microbiological data, central venous catheter management and hospital outcome were recorded. Results A total of 27 patients with median age (SD) 68,03 (16,93) years were treated, 12 (44.4%) were men. The following pathogens were isolated from the blood cultures: Staphylococcus aureus in 7 (25.9%) patients, coagulase-negative Staphylococcus in 10 (37%) patients, Gram-positive bacteria in 4 (14.8%) patients, Gram-negative bacteria in 3 (11.1%) patients, candida in one (3.7%) patient, while 2 (7.4%) patients had negative cultures. Mean (SD) duration of hospitalization was 16,85 (13,15) days for all patients. Patients in whom Staphylococcus aureus and Candida were isolated had longer hospital stay than other infections with a mean (SD) 29 (18) days and 41 days respectively (p = 0.014). Metastatic infections occurred in 4 (14,8%) patients, of whom 2 had endocarditis, one endocarditis and pulmonary abscess, and one endocarditis, lung abscess and brain abscess. All 4 patients isolated Staphylococcus aureus in blood culture out of a total of 7 (57,1%) patients with this pathogen (p = 0.02). 3 of 7 (42,8%) patients with Staphylococcus aureus, 1 of 10 (10%) with coagulase-negative Staphylococcus, and 1 of 3 (33,3%) with Gram-negative bacteria died (p = 0.385). In 26 of the 27 patients (96.3%) central venous catheter was removed. Conclusion The majority of patients in the present sample required central venous catheter removal. The type of pathogen seems to play an important role both in the duration of hospitalization and in the occurrence of metastatic infections.
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