Research Article

Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles

Volume: 4 Number: 3 September 30, 2026

Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles

Abstract

Objective: To characterize the clinical, inflammatory, and microbiological profiles of central venous catheter-associated bloodstream infections in a neurological intensive care unit and explore differences between cerebrovascular and other neurological disorders. 

Methods: This retrospective study included 29 neurological intensive care patients with catheter-associated bloodstream infection. We evaluated 41 infection episodes, 48 isolates, and serial white blood cell count (WBC), C-reactive protein (CRP), and procalcitonin (PCT) measurements. Cerebrovascular disease included ischemic and hemorrhagic stroke (n=22); seven patients had other neurological diagnoses. Longitudinal biomarker changes were assessed using the Friedman test with Holm-adjusted post-hoc comparisons. 

Results: Median age was 76 years (IQR, 66-80), and 75.9% had cerebrovascular disease. Recurrent infection occurred in 34.5% of patients; 14.6% of episodes were polymicrobial and fever was present in 24.1%. Gram-negative, Gram-positive, and fungal organisms accounted for 50.0%, 41.7%, and 8.3% of isolates, respectively. PCT changed from 0.50 ng/mL at admission to 2.98 ng/mL at infection evaluation and 1.38 ng/mL at one week (p<0.001). CRP at infection evaluation was higher in cerebrovascular than other neurological disorders [172.47 vs 66.64 mg/L; p=0.013; Holm-adjusted p=0.039]. 

Conclusion: Neurological intensive care catheter-associated bloodstream infections showed heterogeneous presentation and a mixed pathogen spectrum. Serial PCT demonstrated a distinct infection-associated pattern, while the greater CRP response in cerebrovascular disease may reflect interaction between systemic infection and cerebral injury-related inflammation.

Keywords

Catheter-Related Infections, intensive care units, stroke, biomarkers, sepsis

Ethical Statement

The study was conducted in accordance with the Declaration of Helsinki and was approved by the local institutional ethics committee (approval no: AEŞH-BADEK2-2025-759; date: 30 December 2025). The requirement for informed consent was waived because of the retrospective study design.

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APA
Ger Akarsu, F., Mehdiyev, Z., Demirtaş, F. Z., & Taş, D. (2026). Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles. Journal of Bursa Faculty of Medicine, 4(3), 47-51. https://doi.org/10.61678/bursamed.2042419
AMA
1.Ger Akarsu F, Mehdiyev Z, Demirtaş FZ, Taş D. Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles. J Bursa Med. 2026;4(3):47-51. doi:10.61678/bursamed.2042419
Chicago
Ger Akarsu, Fatma, Zaur Mehdiyev, Fatıma Zehra Demirtaş, and Dilan Taş. 2026. “Central Venous Catheter-Associated Bloodstream Infections in Neurological Intensive Care: Clinical, Inflammatory, and Microbiological Profiles”. Journal of Bursa Faculty of Medicine 4 (3): 47-51. https://doi.org/10.61678/bursamed.2042419.
EndNote
Ger Akarsu F, Mehdiyev Z, Demirtaş FZ, Taş D (September 1, 2026) Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles. Journal of Bursa Faculty of Medicine 4 3 47–51.
IEEE
[1]F. Ger Akarsu, Z. Mehdiyev, F. Z. Demirtaş, and D. Taş, “Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles”, J Bursa Med, vol. 4, no. 3, pp. 47–51, Sept. 2026, doi: 10.61678/bursamed.2042419.
ISNAD
Ger Akarsu, Fatma - Mehdiyev, Zaur - Demirtaş, Fatıma Zehra - Taş, Dilan. “Central Venous Catheter-Associated Bloodstream Infections in Neurological Intensive Care: Clinical, Inflammatory, and Microbiological Profiles”. Journal of Bursa Faculty of Medicine 4/3 (September 1, 2026): 47-51. https://doi.org/10.61678/bursamed.2042419.
JAMA
1.Ger Akarsu F, Mehdiyev Z, Demirtaş FZ, Taş D. Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles. J Bursa Med. 2026;4:47–51.
MLA
Ger Akarsu, Fatma, et al. “Central Venous Catheter-Associated Bloodstream Infections in Neurological Intensive Care: Clinical, Inflammatory, and Microbiological Profiles”. Journal of Bursa Faculty of Medicine, vol. 4, no. 3, Sept. 2026, pp. 47-51, doi:10.61678/bursamed.2042419.
Vancouver
1.Fatma Ger Akarsu, Zaur Mehdiyev, Fatıma Zehra Demirtaş, Dilan Taş. Central venous catheter-associated bloodstream infections in neurological intensive care: Clinical, inflammatory, and microbiological profiles. J Bursa Med. 2026 Sep. 1;4(3):47-51. doi:10.61678/bursamed.2042419