Sepsis bundles and quality metrics

Sepsis & Septic Shock - The Definitions

• Sepsis: Life-threatening organ dysfunction from a dysregulated host response to infection.

  • Clinically, an acute change in total SOFA score ≥2 points.

• Septic Shock: Sepsis with profound circulatory, cellular, and metabolic abnormalities.

  • Requires vasopressors to maintain MAP ≥65 mmHg.
  • Serum lactate >2 mmol/L despite adequate fluid resuscitation.

• qSOFA (Bedside Prompt): Suspect sepsis if ≥2 of:

  • Respiratory Rate: ≥22/min
  • Altered Mentation: GCS <15
  • Systolic BP: ≤100 mmHg

⭐ The Sepsis-3 definition replaced the older SIRS-based criteria, which lacked specificity and failed to identify high-risk patients accurately.

Hour-1 Bundle - The Golden Hour

Immediate, synchronized interventions to be initiated within the first hour of sepsis recognition to reduce mortality. The goal is to complete all tasks as soon as possible.

• Measure Lactate: Re-measure if initial lactate is elevated (>2 mmol/L).
• Blood Cultures: Obtain before antibiotic administration.
• Broad-Spectrum Antibiotics: Administer ASAP, within 1 hour.
• IV Fluids: For hypotension or lactate ≥4 mmol/L, begin rapid infusion of 30 mL/kg crystalloid.
• Vasopressors: If hypotensive during or after fluids, titrate to maintain MAP ≥65 mmHg.

⭐ Each hour of delay in administering antibiotics in septic shock is associated with an average mortality increase of ~8%.

SEP-1 Quality Metric - Checking the Boxes

• SEP-1 is a CMS quality measure for processes applied to septic patients. It bundles time-sensitive tasks to improve outcomes.

⭐ High-Yield: Each hour of delay in antibiotic administration after the onset of septic shock is associated with a ~7.6% increase in mortality. Early recognition and treatment are paramount.

• The Surviving Sepsis Campaign 1-hour bundle dictates immediate management.
• Measure lactate; if >2 mmol/L, remeasure to guide resuscitation.
• Obtain blood cultures before starting antibiotics.
• Administer broad-spectrum antibiotics within 1 hour of recognition.
• Rapidly infuse 30 mL/kg crystalloid for hypotension or lactate ≥4 mmol/L.
• Use vasopressors (norepinephrine first-line) to maintain MAP ≥65 mmHg if fluids fail.
• Adherence to the CMS SEP-1 bundle is a key hospital quality metric.