Published in:
Open Access 01-12-2024 | Heart Failure | Research
Serum zinc concentration in patients with myocardial infarction: a retrospective study
Published in: BMC Cardiovascular Disorders | Issue 1/2024
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Background
Zinc regulates the oxidative stress and inflammatory signaling cascade and affects the development and deterioration of cardiovascular disease. We investigated the prognosis of developing heart failure in patients with myocardial infarction.
Methods
Patients with myocardial infarction (n = 243) were divided using the median value of zinc concentration on admission into low (< 66 µg/dL at admission, n = 111) and high zinc group (≥ 66 µg/dL at admission, n = 132). During follow-up (mean ± SD: 734 ± 597 days; median 691 days), admission due to heart failure was observed in 12 patients: 10 and 2 cases in the low and high zinc groups, respectively.
Results
The risk of admission due to heart failure was significantly higher in the low zinc than in the high zinc group (P = 0.0043). Relative to the high zinc group, the hazard ratio for admission due to heart failure was 15.7 (95% confidence interval 1.11–221, P = 0.042) via adjusted Cox proportional hazards analysis. Even after propensity score matching, the risk of admission due to heart failure was significantly higher in the low zinc than in the high zinc group (P = 0.048).
Conclusion
Low serum zinc concentration may be a risk factor for admission due to heart failure after myocardial infarction.