Trends, Outcomes, and Predictors of Revascularization in Cardiogenic Shock

Area of Science:

• Cardiology
• Interventional Cardiology
• Health Outcomes Research

Background:

• Cardiogenic shock (CS) is a severe complication of acute myocardial infarction (AMI) with high mortality.
• Early revascularization is a critical management strategy for patients experiencing CS.
• Understanding the predictors and outcomes of revascularization in CS is essential for improving patient care.

Purpose of the Study:

• To determine the outcomes associated with revascularization in patients with CS.
• To identify predictors of undergoing revascularization among CS patients.
• To analyze trends in revascularization rates and mortality over time.

Main Methods:

• Utilized the National Inpatient Sample (NIS) database from January 2002 to December 2014.
• Identified patients with CS and AMI using ICD-9-CM codes.
• Analyzed demographic, clinical factors, and outcomes for patients who underwent revascularization versus those who did not.

Main Results:

• A total of 118,618 CS patients were identified; 47% underwent revascularization.
• Revascularized patients were younger and had significantly lower mortality (25.1% vs. 52.2%, p < 0.01).
• Revascularization rates showed a modest increasing trend, coinciding with declining mortality; predictors for lower odds included female gender, weekend admission, and comorbidities.

Conclusions:

• Revascularization is associated with improved survival in a significant proportion of CS patients.
• Despite a modest increase in revascularization rates, disparities exist, with certain patient characteristics associated with lower odds of receiving this intervention.
• Further research into optimizing revascularization strategies and addressing access barriers is warranted to reduce CS mortality.