TCT-525 Initial experience with the use of fractional flow reserve in percutaneous intervention of transplant renal artery stenosis

Decrease of fractional flow reserve shortly after percutaneous coronary intervention.

BACKGROUND The aim of the present study was to quantitatively assess the physiological acute recoil after percutaneous coronary intervention (PCI), and to determine the relation between it and target lesion revascularization (TLR) in the chronic phase. METHODS AND RESULTS This study evaluated 76 patients who underwent elective PCI between May 1997 and December 2001: plain old balloon angiopla...

Percutaneous transluminal dilatation of transplant renal artery stenosis.

Percutaneous transluminal angioplasty has been applied to the treatment of transplant renal artery stenosis in 3 patients, 2 with severe hypertension resistant to medical therapy, and one with graft dysfunction related to the presence of the stenosis in the early post-transplant period. The clinical courses of the patients before and after angioplasty are illustrated and the usefulness of the t...

Fractional flow reserve versus angiography for guiding percutaneous coronary intervention.

BACKGROUND In patients with multivessel coronary artery disease who are undergoing percutaneous coronary intervention (PCI), coronary angiography is the standard method for guiding the placement of the stent. It is unclear whether routine measurement of fractional flow reserve (FFR; the ratio of maximal blood flow in a stenotic artery to normal maximal flow), in addition to angiography, improve...

Transplant Renal Artery Stenosis

Renal transplant artery stenosis.

Renal transplant artery stenosis is a relatively frequent complication after transplantation, with an incidence of up to 23% being reported. The gold standard for the diagnosis still remains renal arteriography. Several imaging techniques are available to confirm the diagnosis (duplex-Doppler, nuclear magnetic resonance, spiral computerized tomography), and their use depends, in part, on the ce...