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Manevska, N. et al.

Vesicoureteral Reflux Detected with (99m)Tc-DTPA Renal Scintigraphy during Evaluation of Renal Function.

BACKGROUND: Radionuclide techniques, as direct radionuclide cystography and (99m)Tc-DMSA scintigraphy, have been used in evaluation of vesicoureteral reflux (VUR) and reflux nephropathy (RN) in children. Dynamic (99m)Tc-DTPA scintigraphy is reserved for evaluation of differential renal function and obstruction in children, where hydronephrosis is detected by ultrasonography (US) pre- or postnatally. CASE REPORT: Six year old boy was prenatally diagnosed with bilateral hydronephrosis. Postnatal, severe bilateral VUR was detected by voiding urethrocytography. US and (99m)Tc-DTPA scintigraphy performed in the first month of life showed small left kidney that participated with 2% in the global renal function. Bilateral cutaneous ureterostomy has been performed in order to obtain good renal drainage and promote optimal renal growth. Twelve months later, classic antireflux procedure was done. Control (99m)Tc-DTPA scintigraphy, 5 ys after antireflux surgery, revealed persisting radioactivity during the diuretic phase, in the left kidney that indicated antireflux procedure failure with VUR reappearance. CONCLUSION: (99m)Tc-DTPA scintigraphy is the first method of choice for long-term monitoring of individual kidney function in children with VUR and other congenital urinary tract anomalies. Additionally, it can be used as indirect radionuclide cystography when rising of radioactivity in the kidney region, during the diuretic phase can indicate presence of VUR.[1]

References

Vesicoureteral Reflux Detected with (99m)Tc-DTPA Renal Scintigraphy during Evaluation of Renal Function. Manevska, N., Stojanoski, S., Majstorov, V., Pop-Gjorcheva, D., Zdraveska, N., Kuzmanovska, D. Open. Access. Maced. J. Med. Sci (2016) [Pubmed]

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