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Published on: January 28, 2020
Prognostic value of circulating chromogranin A levels in acute coronary syndromes
Anna M Jansson1, Helge Røsjø, Torbjørn Omland
1Department of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.
Insights
Chromogranin A (CgA) levels predict long-term mortality and heart failure hospitalizations in acute coronary syndromes (ACSs). This biomarker offers valuable prognostic information beyond traditional risk factors.
Area of Science:
- Cardiology
- Biomarkers
- Prognostics
Background:
- Acute coronary syndromes (ACSs) represent a spectrum of clinical presentations of myocardial infarction.
- Accurate risk stratification is crucial for managing ACS patients and improving outcomes.
- Conventional risk markers may not fully capture the complexity of patient prognosis.
Purpose of the Study:
- To investigate the prognostic value of circulating chromogranin A (CgA) levels in patients with ACS.
- To determine if CgA provides independent prognostic information beyond established cardiovascular risk factors.
Main Methods:
- A cohort of 1268 ACS patients had their baseline CgA levels measured.
- Patients were followed for a median of 92 months for mortality and clinical events.
- Statistical analyses, including adjustments for conventional risk markers, were performed.
Main Results:
- Elevated CgA levels were strongly associated with increased long-term mortality and heart failure hospitalizations.
- The association between CgA and mortality remained significant after adjusting for conventional risk factors.
- CgA also independently predicted heart failure hospitalizations, but not recurrent myocardial infarction or stroke.
Conclusions:
- Circulating chromogranin A is an independent predictor of long-term mortality and heart failure hospitalizations in ACS patients.
- CgA offers incremental prognostic value, enhancing risk prediction beyond traditional cardiovascular risk markers.
Aims:
To determine whether circulating levels of chromogranin A (CgA) provide prognostic information independently of conventional risk markers in acute coronary syndromes (ACSs).
Methods And Results:
We measured circulating CgA levels on day 1 in 1268 patients (median age 67 years, 70% male) with ACS admitted to a single coronary care unit of a Scandinavian teaching hospital. The merit of CgA as a biomarker was evaluated after adjusting for conventional cardiovascular risk factors. During a median follow-up of 92 months, 389 patients (31%) died. The baseline CgA concentration was strongly associated with increased long-term mortality [hazard ratio per 1 standard deviation increase in logarithmically transformed CgA level: 1.57 (1.44-1.70), P < 0.001], heart failure hospitalizations [1.54 (1.35-1.76), P < 0.001], and recurrent myocardial infarction (MI) [1.27 (1.10-1.47), P < 0.001], but not stroke. After adjustment for conventional cardiovascular risk markers, the association remained significant for mortality [hazard ratio 1.28 (1.15-1.42), P < 0.001] and heart failure hospitalization [hazard ratio 1.24 (1.04-1.47), P = 0.02], but not recurrent MI.
Conclusion:
CgA is an independent predictor of long-term mortality and heart failure hospitalizations across the spectrum of ACSs and provides incremental prognostic information to conventional cardiovascular risk markers.
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