Letters Section Editor: Robert M. Golub, MD, Senior Editor.
To the Editor: The study by Dr Wijeysundera and colleagues1 established and validated a simplified predictive index for renal replacement therapy after cardiac surgery. We agree with the authors that an association between the degree of vascular calcification, measured as peripheral vascular disease, and the possibility of renal complications in this patient population exists; this association has been previously identified.2 In addition, an association between peripheral vascular disease and calcification of the aorta has been shown.3
Rosenberger P, Nowak M, Shernan SK. Predictive Index for Renal Replacement Therapy. JAMA. 2007;298(7):737-738. doi:10.1001/jama.298.7.737-a