• Giuseppe Berton, Rocco Cordiano, Fiorella Cavuto, Francesco Bagato, Heba Talat Mahmoud, and Mattia Pasquinucci.
• Department of Cardiology, Conegliano General Hospital, Via Brigata Bisagno, 31015, Conegliano, TV, Italy. giube.s@alice.it.
• Bmc Cardiovasc Disor. 2019 May 20; 19 (1): 119.

BackgroundEmerging evidence suggests that patients with coronary artery disease carry an increased risk of developing malignancy, with deleterious effects on long-term prognosis. Our aim was to ascertain whether baseline plasma lipid levels during acute coronary syndrome (ACS) are associated with malignancy in long-term.MethodsThis study included 589 patients admitted with ACS to three centers and discharged alive. Plasma lipid levels were assessed on the first morning after admission. Patients were followed for 17 years or until death.ResultsFive hundred seventy-one patients were free from malignancy at enrollment, of them 99 (17.3%) developed the disease during follow-up and 75 (13.1%) died due to it. Compared to patients without malignancy, those with malignancy showed lower plasma levels of total cholesterol (TC), low-density lipoprotein (LDL), and triglycerides (TG). The groups showed similar statin use rates at any time in follow-up. The incidence rate of neoplasia and neoplastic mortality was higher in patients with baseline TC or LDL values ≤ median; they showed 85 and 72% increased incidence rate of developing malignancy and 133 and 122% increased incidence rate of neoplastic death respectively. No differences were observed relative to HDL and TG levels. In survival analysis using Cox regression with parsimonious models, patients with baseline TC or LDL values > median, respectively, showed risks of 0.6(95% CI 0.4-0.9; p = 0.01) and 0.6(95%CI 0.4-0.9; p = 0.02) for malignancy onset, and 0.5(95% CI 0.3-0.8; p = 0.005) and 0.5(95% CI 0.3-0.8; p = 0.004) for neoplastic death. Similar results were obtained using competitive risk analysis with parsimonious models.ConclusionsThis long-term prospective study of an unselected real-world patient sample showed that neoplasia onset and mortality are independently associated with low plasma TC and LDL levels at admission for ACS.

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