[Diagnosis of early complications of the transplanted kidney by pulsed Doppler].
Thirty four patients with advanced renal insufficiency and after kidney transplantation have been prospectively studied using pulsed wave doppler. The doppler flows were evaluated using an index of resistance. The index of resistance varies proportionally with the peripheral resistances. This study showed in 14 patients without symptoms a mean index of resistance equal to 0.71 +/- 0.087. During acute rejection, the mean index of resistance increases to 0.91 +/- 0.12 (p less than 0.01). Seven patients with acute tubular necrosis and an index of resistance equal to 1 (p less than 0.01). There is no increase of the indices of resistance in patients with cytomegalovirus infection or with overdosed cyclosporin treatment. The pulsed wave doppler has a very good sensitivity to diagnose the acute rejection (90%) and acute tubular necrosis (100%) but cannot differentiate them. However, the repetition of systematic examinations allows the early diagnosis of acute rejection and the follow-up of the vascularization of anuric kidneys related to tubulopathy.
Attal
M
M
Radiologie centrale, Hôpital de la Pitié, Paris.
Bitker
M O
MO
Bousquet
J C
JC
Chatelain
C
C
Grellet
J
J
D005260:Female; D005500:Follow-Up Studies; D006084:Graft Rejection; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D016030:Kidney Transplantation / Q000009:adverse effects*; D008297:Male; D011446:Prospective Studies; D012189:Retrospective Studies; D013997:Time Factors; D014463:Ultrasonography
Diagnostic des complications précoces du rein transplanté par Doppler pulsé.