[Experimental studies on the regeneration capability and prognosis of hydronephrosis]

There are conflicting opinions regarding the ability of kidneys to return to normal functioning following removal of an obstruction. Opinions also differ on the precision of radioactive iodine for the measurement of functional ability in obstructed kidneys. We tried to assess the value of nuclear medical methods in comparison to the classical physiological clearance methods. Furthermore, we tried to answer the following questions: how long can an obstruction be present before total recovery becomes impossible and when is it no longer worthwhile to perform conservative surgery?