Nephrology Dialysis Transplantation, Vol 12, Issue 1 67-70, Copyright © 1997 by Oxford University Press
E Canivet, H Wampach, B Brandt, O Toupance, S Lavaud, B Lardennois, J Liehn and J Chanard
Background. The gold standard for documenting
vesicoureteric reflux is direct (retrograde) micturating cystography (MC).
In children, radioisotopic MC has been advocated for increased sensitivity
and lesser radiation exposure. In renal transplant recipients, where reflux
can induce acute pyelonephritis, this technique has not been evaluated. The
aim of this study was to assess the radioisotopic technique in these
patients. Methods. Seventeen renal transplant
recipients had developed acute pyelonephritis following the surgical
grafting procedure. They were investigated using both MC techniques.
Radioisotopic MC was performed using
99mTc-pertechnetate. Results.
Reflux was documented in nine patients by radioisotopic MC but in only
seven with the conventional technique. All negative patients remained
symptom free after the pyelonephritis was cured and it was assumed that
they had no reflux. Consequently, using the radioisotopic MC as gold
standard, the conventional X-ray technique had a sensitivity of 78% and a
specificity of 100%. Conclusion. Direct radioisotopic
MC allowing continuous cystogram recording is more accurate than
conventional X-ray MC for the diagnosis of vesicoureteric reflux in
transplanted patients with acute pyelonephritis.
Keywords: renal transplantation; vesicoureteric
reflux; cystography; radioisotopic cystography; pyelonephritis
ORIGINAL ARTICLES
Assessment of radioisotopic micturating cystography of the diagnosis of vesicouretic reflux in renal transplant recipients with acute pyelonephritis
Service de Nephrologie, Centre Hospitalier et Universitaire, 45 rue Cognacq-Jay, 51100 Reims, France; Service de Medecine Nucleaire, Institut Jean Godinot, Universite de Reims, France; Service d'Urologie, Centre Hospitalier et Universitaire, Reims, France; Corresponding author
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