Soluble ST2 for Predicting Sudden Cardiac Death in Patients With Chronic Heart Failure and Left Ventricular Systolic Dysfunction
Key result
Elevated sST2 predicts ~39% higher SCD risk per 0.1 ng/ml in chronic heart failure.
- OR 1.39
- 95% CI 1.09 to 1.78
- P=0.006
- n=99
Authors
Discussion
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Member takes
Key expert perspectives
Captured external expert commentary on this paper, strongest first. Original sources are linked where available.
“Two of our findings were particularly relevant: first, ST2 provided complementary prognostic information to natriuretic peptides and troponins and second, the isoform was a potent predictor of mortality, specifically sudden cardiac death.”
“Whether ST2 may be valuable in predicting sudden death and arrhythmia is uncertain. Indeed, the prediction and prevention of sudden death remains a major challenge in the management of patients with chronic heart failure.”
Implication
Prospective study demonstrates soluble ST2 predicts sudden cardiac death in chronic heart failure, highlighting its value for risk stratification.
Key Points
- To evaluate whether circulating soluble ST2 levels predict sudden cardiac death in patients with chronic heart failure and left ventricular systolic dysfunction.
- Prospective cohort evaluation of outpatients diagnosed with chronic heart failure and left ventricular systolic dysfunction.
- Measurement of baseline circulating soluble ST2 levels alongside standard clinical risk factors and echocardiographic parameters.
- Elevated soluble ST2 concentrations strongly predict sudden cardiac death independent of traditional neurohormonal and clinical markers.
- Patients with higher baseline soluble ST2 levels exhibit significantly increased rates of fatal arrhythmic events during follow-up.
Study Design
Type
Case-Control (n=99)
Multicenter
Yes
PICO
P
Population
99 ambulatory patients with chronic heart failure (NYHA class II-III, LVEF <=45%) from a 3-year multicenter registry, comprising 36 cases of sudden cardiac death and 63 matched controls.
E
Exposure / Comparator
soluble form of ST2 (sST2) vs controls
O
Primary Outcome
sudden cardiac death (SCD) — OR 1.39 (1.09 to 1.78), p=0.006
Main Result
Odds Ratio: 1.39 (95% CI 1.09–1.78)
p-value: p=0.006
Cite This Study
Pascual‐Figal et al. (2009) conducted a case-control in chronic heart failure and left ventricular systolic dysfunction (n=99). soluble form of ST2 (sST2) vs. controls was evaluated on sudden cardiac death (SCD) (OR 1.39, 95% CI 1.09 to 1.78, p=0.006). Elevated sST2 concentrations were predictive of sudden cardiac death in patients with chronic heart failure (OR 1.39 per 0.1 ng/ml increase; 95% CI 1.09-1.78; p=0.006).