Vascular complication and Doppler ultrasonographic finding after renal transplantation.
OBJECTIVE
Vascular complications are common after renal transplantation. In this study we correlated Doppler sonographic indices and transplant kidney function.


METHODS
We reviewed data on 244 renal transplant patients. Doppler ultrasonographic evaluation was performed during the first 2 weeks after renal transplantation. We determined resistive index (RI) and pulsatility index (PI) in the interlobar arteries and thrombosis of renal and lower limb veins. Serum creatinine (Cr) and cyclosporine levels were evaluated prior to sonographic assessment.


RESULTS
The mean age of the 142 male and 102 female patients was 36.31 +/- 3.30 years. Prevalence of real artery stenosis was 9.5%. In these patients the mean serum Cr level (2.21 +/- 1.83 mg/dL) was significantly higher than among patients with patent renovascular tributary (1.49 +/- 1.00 mg/dL; P=.03). RI and PI were also significantly correlated with serum Cr(P=.05 and .001, respectively). There was no relationship between cyclosporine level or panel-reactive antibody with RI and PI. Retransplant patients showed higher RI than first renal allograft recipients (0.72 +/- 0.16 vs 0.63 +/- 0.11; P=.006). Serum Cr level was higher among renal allograft recipients with Doppler evidence of thrombosis of the lower limb veins (3.1 +/- 0.98 mg/dL versus 1.56 +/- 1.13 mg/dL; P=.04).


CONCLUSIONS
RI and PI are two valuable Doppler ultrasonographic markers to determine renal allograft function and related vascular complications.
Tarzamni
M K
MK
Department of Radiology, Imam Hospital, Tabriz University of Medical Science, East Azerbaijan, Iran. Tarzamni@yahoo.com
Argani
H
H
Nurifar
M
M
Nezami
N
N
D000328:Adult; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D016030:Kidney Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011674:Pulse; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018608:Ultrasonography, Doppler; D014652:Vascular Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology
D003404:Creatinine