RESUMO
Metabolomics is the analytical study of metabolites in biological matrices using high-throughput profiling. Traditionally, the metabolome has been studied to identify various biomarkers for the diagnosis and pathophysiology of disease. Over the last decade, metabolomic research has grown to include the identification of prognostic markers, the development of novel treatment strategies, and the prediction of disease severity. In this review, we summarized the available evidence on the use of metabolome profiling in neurocritical care populations. Specifically, we focused on aneurysmal subarachnoid hemorrhage, traumatic brain injury, and intracranial hemorrhage to identify the gaps in the current literature and to provide direction for future studies. A primary literature search of the Medline and EMBASE databases was conducted. Upon removing duplicate studies, abstract screening and full-text screening were performed. We screened 648 studies and extracted data from 17 studies. Based on the current evidence, the utility of metabolomic profiling has been limited due to inconsistencies amongst studies and a lack of reproducible data. Studies identified various biomarkers for diagnosis, prognosis, and treatment modification. However, studies evaluated and identified different metabolites, resulting in an inability to compare the study results. Future research towards addressing the gaps in the current literature, including reproducing data on the use of specific metabolite panels, is needed.
RESUMO
BACKGROUND: There is growing interest in the utilization of daptomycin for the treatment of multi-drug-resistant, Gram-positive infections. Pharmacokinetic studies suggest that daptomycin could penetrate into the cerebrospinal fluid, albeit to a small extent. The objective of this review was to evaluate the available clinical evidence for the use of daptomycin in acute bacterial meningitis of both paediatric and adult patients. METHODS: Electronic databases were searched up to June 2022 for studies published on the topic. The inclusion criteria were met if the study reported the use of intravenous daptomycin (more than a single dose) for the treatment of diagnosed acute bacterial meningitis. RESULTS: In total, 21 case reports were identified that met the inclusion criteria. These suggest that daptomycin could be a safe and effective alternative to achieve clinical cure of meningitis. In these studies, daptomycin was used in the event of treatment failure, patient intolerance or bacterial resistance to first-line agents. CONCLUSIONS: Daptomycin has potential to be an alternative to standard care for meningitis caused by Gram-positive bacteria in the future. However, more robust research is required to establish an optimal dosing regimen, duration of therapy, and place in therapy for the management of meningitis.
