Recent data suggest that oral therapy can be effective for bone infections. We aim to assess the efficacy of an early switch to oral therapy ( weeks) compared to a non-early switch in bacterial native vertebral osteomyelitis. We conducted a cohort study at Mayo Clinic, Rochester (MN), between 2019-2021 combined with a systematic review, which queried multiple databases. Data were analyzed using a random-effects model. The cohort study included 139 patients: two received an early switch. Of 3708 citations, 13 studies were included in the final analysis. Meta-analysis demonstrated no difference in treatment failure (odds ratio 1.073, 95 % confidence interval 0.370-3.116), but many studies presented high risk of bias. Current evidence is insufficient to conclude the proportion of patients with failure or relapse is different in the two groups. High-quality studies are warranted before early switch can be routinely recommended.
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