Abstract
We have read with great interest the report by Miller et al 1 Miller L.E. Pierson L.M. Pierson M.E. Kiebzak G.M. Ramp W.K. Herbert W.G. Cook J.W. Changes in bone mineral and body composition following coronary artery bypass grafting in men. Am J Cardiol. 2007; 99: 585-587 Abstract Full Text Full Text PDF PubMed Scopus (11) Google Scholar evaluating bone mineral density (BMD) and bone mineral composition (BMC) in patients who undergo coronary artery bypass grafting (CABG) surgery. Briefly, during the 3-month postoperative period after CABG, total-body and arm BMC, BMD, and fat-free mass decreased despite a 48% increase in functional capacity. Through 1 year after treatment, total-body and leg BMD and arm bone mineral remained less than pretreatment levels, despite an almost twofold increase in functional capacity. The investigators suggest a site-specific disuse phenomenon in the arm, with substantial decreases in BMC, BMD, and fat-free mass.
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