Evaluating the Diagnostic Utility of 16S Oxford Nanopore Technology Sequencing in Patients With Central Nervous System Infections and Its Usefulness in Antimicrobial Stewardship - Scorecard - MDSpire
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Evaluating the Diagnostic Utility of 16S Oxford Nanopore Technology Sequencing in Patients With Central Nervous System Infections and Its Usefulness in Antimicrobial Stewardship
Clinical Scorecard: Assessing the Diagnostic Value of 16S Oxford Nanopore Technology Sequencing for Central Nervous System Infections and Its Role in Promoting Antimicrobial Stewardship
At a Glance
Category
Detail
Condition
Central nervous system infections (meningitis, encephalitis, meningoencephalitis)
Key Mechanisms
Untargeted 16S rRNA gene sequencing using Oxford Nanopore Technology (ONT) for broad pathogen detection in cerebrospinal fluid
Target Population
Hospitalized patients with suspected CNS infections in resource-limited settings
Care Setting
Hospital-based, multicenter settings in Vietnam
Key Highlights
16S ONT sequencing demonstrated higher sensitivity (9%) than conventional CSF culture (7%) in detecting bacterial/fungal pathogens.
16S ONT identified 17 pathogens not detected by culture, including Streptococcus suis and Acinetobacter baumannii.
Findings enabled improved antimicrobial stewardship: 61% of patients had inappropriate empirical therapy that could be optimized.
Guideline-Based Recommendations
Diagnosis
Consider 16S ONT sequencing as a complementary diagnostic tool to CSF culture for CNS infections to improve pathogen detection.
Use 16S rRNA gene sequencing to identify fastidious or antibiotic-pretreated pathogens that may be missed by culture.
Management
Adjust empirical antibiotic therapy based on 16S ONT sequencing results to enable targeted antimicrobial treatment.
Implement antimicrobial stewardship interventions including de-escalation, escalation, or adjustment of antibiotics guided by sequencing data.
Monitoring & Follow-up
Monitor patient response to antimicrobial therapy informed by sequencing results to optimize treatment outcomes.
Risks
Be aware of potential false negatives in culture due to prior antibiotic use; sequencing may mitigate this risk.
Consider limitations of sequencing turnaround time and resource availability in low-income settings.
Patient & Prescribing Data
Patients hospitalized with suspected CNS infections in resource-limited hospitals in Vietnam
61% received inappropriate empirical antibiotics; sequencing results could guide de-escalation in 11 cases, escalation in 5, and adjustments in 2 cases to improve antimicrobial stewardship.
Clinical Best Practices
Use 16S ONT sequencing alongside conventional CSF culture to enhance diagnostic yield in CNS infections.
Prioritize rapid sequencing methods to reduce time to pathogen identification and optimize early treatment.
Incorporate sequencing findings into antimicrobial stewardship programs to reduce inappropriate antibiotic use.
Consider local epidemiology and pathogen diversity when interpreting diagnostic results and planning treatment.
Ensure lumbar puncture is performed following clinical guidelines to obtain adequate CSF samples for testing.
by Do Van Dong, Le Thi Kieu Linh, Nguyen Thi Tuyet Nga, Nghiem Xuan Hoan, Nguyen Thi Khanh Linh, Tran Thi Thanh Huyen, Hoang Xuan Quang, Tran Thi Lien, Van Dinh Trang, Vu Viet Sang, Peter G Kremsner, Le Huu Song, Dennis Nurjadi, Thirumalaisamy P Velavan
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