Is there a correlation between atherosclerosis and renal resistive indices in kidney transplant recipients?
Daniel C Brennan* and Krista L Lentine
Correspondence *6107 Queeny Tower, One Barnes-Jewish Hospital Plaza, St Louis, MO 63110, USA
Email dbrennan@wustl.edu
This article has no abstract so we have provided the first paragraph of the full text.
Renal Doppler resistive indices are believed to be a measure of renal parenchymal perfusion. The normal renal resistive index is 0.6;1 elevated indices are considered indicative of renal damage and can occur with renal allograft rejection, ureteral obstruction, acute tubular necrosis, renal vein occlusion, pyelonephritis, and ciclosporin toxicity. Renal resistive indices can also be influenced by the measuring technique and equipment used, pulse rate, intra-abdominal pressure, and systemic diseases such as diabetes or vascular disease. Although discouraging clinical experience has prompted most radiologists to abandon the resistive index, a report that an index of 0.8 is an extremely strong predictor of subsequent poor allograft function and death (associated with a RELATIVE RISK of 9.1) has recently increased interest in the use of this parameter.2
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