Abstract
Introduction and objectivesPrimary biliary cholangitis (PBC) is a chronic cholestatic autoimmune disease that disrupts the cholesterol metabolism. Our aim was to investigate the frequency of dyslipidemias and to evaluate the risk of cardiovascular events in a historic cohort of patients with PBC. PatientsAll patients attended from 2000 to 2009 with histological diagnosis of PBC were included and were compared with healthy controls. The 10-year cardiovascular risk was estimated by the Framingham risk score. ResultsFifty four patients with PBC were included and compared to 106 controls. Differences in total cholesterol (263.8±123.9mg/dl vs. 199.6±40, p=0.0001), LDL-cholesterol (179.3±114.8 vs. 126.8±34.7, p=0.0001), HDL-cholesterol (62.4±36.2mg/dl vs. 47.3±12.3, p=0.0001) and triglycerides (149.1±59.1mg/dl vs. 126.4±55.4, p=0.001) were found. Hypercholesterolemia (>240mg/dl) was found in 52.4% of the patients with PBC vs. 11% in the control group, high LDL-cholesterol (160–189mg/dl) in 45.2% of the patients with PBC vs. 10% in controls and hyperalphalipoproteinemia (HDL-cholesterol >60mg/dl) in 45.2% of the patients with PBC vs. 16% in controls. The 10-year cardiovascular risk was 5.3%±5.9 in the patients with PBC and 4.1%±5.7 in the control group (p=0.723, IC 95%=0.637–1.104). Only one cardiovascular event (stroke) in a patient with PBC was registered in a mean follow up time of 57.9±36.5 months. ConclusionsMarked derangements in serum lipids and a high frequency of dyslipidemias are found in patients with PBC, however, these do not increase the risk of cardiovascular events.
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