Heart failure decompensation with cardiogenic shock exhibits distinct sequential inflammatory profiles

Area of Science:

• Cardiology
• Immunology
• Critical Care Medicine

Background:

• Cardiogenic shock (CS) following myocardial infarction impacts patient outcomes.
• The inflammatory profile of CS in acute decompensated heart failure (ADHF-CS) is not well understood.
• Investigating inflammatory markers in ADHF-CS is crucial for understanding disease progression.

Purpose of the Study:

• To measure and compare inflammatory cytokine levels in patients with ADHF-CS.
• To identify differences in inflammatory profiles between ADHF-CS, pre-CS, and stable heart failure (HF) patients.
• To explore the potential of inflammatory changes in predicting CS risk.

Main Methods:

• Patients admitted to a cardiac intensive care unit (CICU) with ADHF-CS were identified.
• Comparator groups included outpatients with stable HF and those who developed CS (pre-CS).
• Biospecimens were analyzed for 48-plex cytokine levels and white blood cell differentials.

Main Results:

• ADHF-CS patients exhibited significantly higher pro-inflammatory cytokine levels (IL-1, IL-6, IL-8) and total white blood cell counts compared to stable HF patients.
• The pre-CS group displayed an intermediate inflammatory profile, suggesting a transitional phase.
• Cytokine profiles clearly differentiated between ADHF-CS and stable HF cohorts.

Conclusions:

• ADHF-CS is associated with heightened pro-inflammatory cytokines and elevated white blood cell counts relative to ambulatory HF.
• Heart failure decompensation may involve two distinct inflammatory phases.
• Identifying these inflammatory phases could help stratify outpatients at risk for developing CS.