[Imaging diagnosis and interventional therapy of transplant renal artery stenosis]
Xiao-guang Li1, Zheng-yu Jin, Ning Yang
1Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China. xglee88@yahoo.com.cn
Objective:
To discuss the diagnostic methods of transplant renal artery stenosis (TRAS) and clinical outcome following percutaneous transluminal angioplasty.
Methods:
Of 24 patients with TRAS screened by color Doppler ultrasound and confirmed with digital subtraction angiography, balloon angioplasty was performed in 19 patients, and 5 patients received stent implantation, including 2 cases of recurrent stenosis.
Results:
Technical success was achieved in all procedures with no serious complications. The blood pressure and serum creatinine levels of all patients were remarkably decreased (P < 0.01). Renal functions of the two patients with restenosis were significantly improved after intra-arterial stenting.
Conclusions:
Doppler ultrasonography is useful in the screening and follow-up of TRAS and arteriography is still the definite diagnostic method. Percutaneous transluminal angioplasty and stenting are safe and effective procedures to treat TRAS.
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