[<SUP>18</SUP>F]FDG PET/CT Imaging Is Associated with Lower In-Hospital Mortality in Patients with Pyogenic Spondylodiscitis-A Registry-Based Analysis of 29,362 Cases

Lang, Siegmund and Walter, Nike and Heidemanns, Stefanie and Lapa, Constantin and Schindler, Melanie and Krueckel, Jonas and Schmidt, Nils Ole and Hellwig, Dirk and Alt, Volker and Rupp, Markus (2024) [<SUP>18</SUP>F]FDG PET/CT Imaging Is Associated with Lower In-Hospital Mortality in Patients with Pyogenic Spondylodiscitis-A Registry-Based Analysis of 29,362 Cases. ANTIBIOTICS-BASEL, 13 (9): 860. ISSN 2079-6382,

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Abstract

Background: While MRI is the primary diagnostic tool for the diagnosis of spondylodiscitis, the role of [F-18]-fluorodeoxyglucose ([F-18]FDG) PET/CT is gaining prominence. This study aimed to determine the frequency of [F-18]FDG PET/CT usage and its impact on the in-hospital mortality rate in patients with spondylodiscitis, particularly in the geriatric population. Methods: We conducted a Germany-wide cross-sectional study from 2019 to 2021 using an open-access, Germany-wide database, analyzing cases with ICD-10 codes M46.2-, M46.3-, and M46.4- ('Osteomyelitis of vertebrae', 'Infection of intervertebral disc (pyogenic)', and 'Discitis unspecified'). Diagnostic modalities were compared for their association with in-hospital mortality, with a focus on [F-18]FDG PET/CT. Results: In total, 29,362 hospital admissions from 2019 to 2021 were analyzed. Of these, 60.1% were male and 39.9% were female, and 71.8% of the patients were aged 65 years and above. The overall in-hospital mortality rate was 6.5% for the entire cohort and 8.2% for the geriatric subgroup (p < 0.001). Contrast-enhanced (ce) MRI (48.1%) and native CT (39.4%) of the spine were the most frequently conducted diagnostic modalities. [F-18]FDG PET/CT was performed in 2.7% of cases. CeCT was associated with increased in-hospital mortality (OR = 2.03, 95% CI: 1.90-2.17, p < 0.001). Cases with documented [F-18]FDG PET/CT showed a lower frequency of in-hospital deaths (OR = 0.58, 95% CI: 0.18-0.50; p = 0.002). This finding was more pronounced in patients aged 65 and above (OR = 0.42, 95% CI: 0.27-0.65, p = 0.001). Conclusions: Despite its infrequent use, [F-18]FDG PET/CT was associated with a lower in-hospital mortality rate in patients with spondylodiscitis, particularly in the geriatric cohort. This study is limited by only considering data on hospitalized patients and relying on the assumption of error-free coding. Further research is needed to optimize diagnostic approaches for spondylodiscitis.

Item Type: Article
Uncontrolled Keywords: ACUTE KIDNEY INJURY; VERTEBRAL OSTEOMYELITIS; INFECTIOUS SPONDYLODISCITIS; COMPUTED-TOMOGRAPHY; DIAGNOSTIC-VALUE; BACTEREMIA; spondylodiscitis; vertebral osteomyelitis; [F-18]FDG PET/CT; in-hospital mortality; elderly patients
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Unfallchirurgie
Medicine > Lehrstuhl für Neurochirurgie
Medicine > Abteilung für Nuklearmedizin
Depositing User: Dr. Gernot Deinzer
Date Deposited: 18 Jul 2025 06:15
Last Modified: 18 Jul 2025 06:15
URI: https://pred.uni-regensburg.de/id/eprint/63564

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