Severe sepsis and cardiac arrhythmias

Area of Science:

• Cardiology
• Critical Care Medicine
• Epidemiology

Background:

• Sepsis is a known risk factor for cardiac arrhythmias, but data on incidence and outcomes in severe sepsis is limited.
• Understanding the association between severe sepsis and arrhythmias is crucial for patient outcomes.

Purpose of the Study:

• To examine the association of severe sepsis with cardiac arrhythmias.
• To determine the impact of these arrhythmias on outcomes in patients with severe sepsis.

Main Methods:

• Utilized Nationwide Inpatient Sample (NIS) hospital discharge data from 2012.
• Identified severe sepsis, atrial fibrillation, atrial flutter, and ventricular/non-ventricular fibrillation arrests using ICD-9-CM codes.
• Employed univariate and multivariate logistic regression to analyze associations and adjust for confounders.

Main Results:

• Severe sepsis was associated with increased risk of atrial fibrillation (OR 1.23), atrial flutter (OR 1.34), and ventricular arrest (OR 2.58-4.91).
• Cardiac arrhythmias in severe sepsis patients correlated with higher in-hospital mortality (OR 1.41), longer length of stay (OR 1.50), and increased hospital charges (OR 1.37).
• Advanced age, male sex, ischemic heart disease, diabetes, heart failure, respiratory failure, and vasopressor use were linked to arrhythmias.

Conclusions:

• Patients with severe sepsis face a high risk of both atrial and life-threatening ventricular arrhythmias.
• Severe sepsis is independently associated with a significantly higher risk of cardiac arrest and increased mortality, even after adjusting for confounders.