Antimicrobial Strategies in Sepsis Management

Sepsis represents a dysregulated host response to infection that may rapidly progress to organ dysfunction and death. Antimicrobial intervention remains the cornerstone of management and requires an immediate balance between early broad-spectrum coverage and the minimisation of drug resistance. Empiric regimens are selected on the basis of likely pathogens, local epidemiology and patient risk factors, while awaiting culture results. Prompt initiation is associated with improved survival, particularly in septic shock, but indiscriminate use of broad-spectrum agents drives resistance and collateral damage to the microbiome. To mitigate this, antimicrobial stewardship principles advocate for timely de-escalation to narrow-spectrum therapies once pathogen identity and susceptibilities are confirmed. Parallel advances in rapid diagnostics—including microfluidic platforms and biomarker panels—promise to shorten the window to targeted therapy. Contemporary guidelines recommend structured care bundles, integrating source control, haemodynamic support and predefined antibiotic timeframes, while emerging strategies explore adjunctive immunomodulation and pharmacokinetic-guided dosing. Globally, resource-limited settings must adapt these approaches to local constraints, underscoring the importance of adaptable protocols, surveillance of resistance patterns and investment in diagnostic infrastructure to optimise sepsis outcomes worldwide.

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Antimicrobial Strategies in Sepsis Management publication trend

The graph below shows the total number of articles in antimicrobial strategies in sepsis management across all publications each year (not limited to Nature Index journals).

Technical terms

Empiric therapy: Initiation of broad-spectrum antimicrobials before the specific pathogen is identified.

De-escalation: Reduction in the spectrum or number of antibiotics based on microbiological results and clinical response.

Antimicrobial stewardship: Coordinated interventions designed to optimise antibiotic use and reduce resistance.

Septic shock: Subset of sepsis characterised by profound circulatory and cellular metabolic abnormalities with increased mortality risk.

Sepsis bundle: A set of time-sensitive clinical interventions, including antibiotic administration, fluid resuscitation and source control, aimed at improving outcomes.

References

1. Time to treatment and mortality for clinical sepsis subtypes. Critical Care (2023).
2. Rapid Bacterial Detection and Gram-Identification Using Bacterially Activated, Macrophage-Membrane-Coated Nanowired-Si Surfaces in a Microfluidic Device. Nano Letters (2023).
3. Time-to-antibiotics and clinical outcomes in patients with sepsis and septic shock: a prospective nationwide multicenter cohort study. Critical Care (2022).