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Vitamin D deficiency and periprocedural myocardial infarction in patients undergoing percutaneous coronary interventions.
Vitamin D deficiency has been implicated in the progression of atherosclerosis and acute thrombotic events. We aimed at evaluating the impact of vitamin D deficiency on periprocedural myocardial infarction (PMI) in patients undergoing percutaneous coronary interventions (PCI). We included 934 patients undergoing non-urgent PCI. Assessment of myocardial biomarkers was performed from 6 to 48 h after PCI. PMI was defined as Creatine Kinase-MB increase by 3 times the Upper Limit Normal or by 50% of an elevated baseline value, periprocedural myocardial damage as Troponin I increase by 3 × ULN or 50% of baseline. Patients were divided according to vitamin D tertiles values (<10.2 ng/ml; 10.2-18.7 ng/ml; ≥18.8 ng/ml). Lower tertiles values of vitamin D were associated with age (p = 0.04), female gender, (p = 0.001), and a higher cardiovascular risk profile. Lower vitamin D levels related with PCI of descending anterior coronary artery or bypass vein grafts (p = 0.03), treatment of bifurcations (p = 0.05) and side branch loss (p = 0.05) and inversely with direct stenting (p = 0.002). However, lower vitamin D levels did not influence the risk of PMI (adjusted OR [95% CI] = 0.81[0.65,1.18], p = 0.09) or periprocedural myocardial damage (adjusted OR [95% CI] = 0.93[0.77,1.13], p = 0.48). Similar results were achieved when considering the severity of vitamin D deficiency. Therefore, in patients undergoing PCI, no association was observed between vitamin D deficiency and the risk of periprocedural MI and myocardial damage.
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