Pathogenetic criteria of nephroptosis

The aim of the study was to specify treatment policy in nephroptosis
on the basis of characteristics of the onset, development and
course of the disease. A total of 83 patients with nephroptosis were
examined. The rotation angles of the kidney were summed using
standard excretory urograms in clino- and orthostasis. Radionuclide
nephroscintigraphy, rheorenography were made in 72 patients. Statistical
processing employed correlation, cluster, discriminant analysis
of the program Statistica. The method of estimation of the angles of
rotation of the movable kidney in three planes was introduced.
Grouping of patients by the sum of the rotation angles appeared more
precise in reflecting disorders of intraorganic circulation in the kidney
than skeletotopic distribution by the nephroptosis degree. Standard
excretory urograms allow determination of the sum of the angle of
rotation of the movable kidney and, finally, adequate conservative or
surgical treatment method. Surgery can correct disorders of intraoring
ganic blood flow by creating physiological position for the kidney raisto
the due level and eliminating rotation.