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Mitral annular calcification is associated with reduced left ventricular function and inflammation in patients with chronic kidney disease.
BACKGROUND: Mitral annular calcification (MAC) is prevalent in patients with chronic kidney disease (CKD); however, it is not known whether the increased cardiovascular risk observed in patients with CKD and MAC is related to atherosclerotic burden, because they share common risk factors.
METHODS: Transthoracic echocardiography was performed in patients with CKD undergoing pre-kidney transplantation evaluation. Fasting lipids, high-sensitivity C-reactive protein, parathyroid hormone, calcium, and creatinine levels were measured.
RESULTS: Of 99 participants, the 31 with MAC had higher carotid intima-media thickness (P = .004), lower left ventricular ejection fraction (P = .016), and higher high-sensitivity C-reactive protein (P = .01). MAC was predicted independently by increasing high-sensitivity C-reactive protein, decreasing left ventricular ejection fraction, and not being on dialysis (likelihood ratio 21.8, P < .001). Models were not affected significantly by the addition of age, carotid intima-media thickness, and other laboratory tests.
CONCLUSIONS: In patients with CKD, MAC is associated with inflammation, reduced left ventricular function, and treatment with dialysis, independent of the degree of subclinical atherosclerosis.
METHODS: Transthoracic echocardiography was performed in patients with CKD undergoing pre-kidney transplantation evaluation. Fasting lipids, high-sensitivity C-reactive protein, parathyroid hormone, calcium, and creatinine levels were measured.
RESULTS: Of 99 participants, the 31 with MAC had higher carotid intima-media thickness (P = .004), lower left ventricular ejection fraction (P = .016), and higher high-sensitivity C-reactive protein (P = .01). MAC was predicted independently by increasing high-sensitivity C-reactive protein, decreasing left ventricular ejection fraction, and not being on dialysis (likelihood ratio 21.8, P < .001). Models were not affected significantly by the addition of age, carotid intima-media thickness, and other laboratory tests.
CONCLUSIONS: In patients with CKD, MAC is associated with inflammation, reduced left ventricular function, and treatment with dialysis, independent of the degree of subclinical atherosclerosis.
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