|Title||Low bone volume--a risk factor for coronary calcifications in hemodialysis patients.|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||Adragao, T, Herberth, J, Monier-Faugere, M-C, Branscum, AJ, Ferreira, A, Frazao, JM, Curto, JDias, Malluche, HH|
|Journal||Clinical journal of the American Society of Nephrology : CJASN|
|Date Published||2009 Feb|
BACKGROUND AND OBJECTIVES: There is increasing evidence that altered bone metabolism is associated with cardiovascular calcifications in patients with stage 5 chronic kidney disease on hemodialysis (HD). This study was conducted to evaluate the association between bone volume, turnover, and coronary calcifications in HD patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In a cross-sectional study, bone biopsies and multislice computed tomography were performed in 38 HD patients. Bone volume/total volume, activation frequency, and bone formation rate/bone surface were determined by histomorphometry and coronary calcifications were quantified by Agatston scores. RESULTS: Prevalence of low bone turnover was 50% and of low bone volume was 16%. Among the studied traditional cardiovascular risk factors, only age was found to be associated with coronary calcifications. Lower bone volume was a significant risk factor for coronary calcifications during early years of HD, whereas this effect was not observed in patients with dialysis duration >6 yr. Histomorphometric parameters of bone turnover were not associated with coronary calcifications. CONCLUSIONS: Low bone volume is associated with increased coronary calcifications in patients on HD.