[Morphology of analgesic nephropathy and its incidence in Czechoslovakia].

Basing on the data obtained at 10433 autopsies performed from 1972 to 1981, cases of secondary kidney cirrhosis (chronic pyelonephritis, glomerulonephritis and interstitial nephritis) and renal pelvis cancer were thoroughly analysed. Analgetic nephropathy was found in 13.5% of all chronic interstitial and tubulo-interstitial inflammatory renal diseases, and in cases of bilateral lesions--in 17.2%. The conclusion was made on the basis of morphologic criteria ("chronic" papillary necroses and capillarosclerosis of renal pelvis). There was 41 patient with analgetic nephropathy, who died of chronic renal insufficiency, i.e. 10.6% out of the total number of patients deceased of the same reason for the period mentioned. In the biopsy material reviewed for the same period, that mainly consisted of cases with renal pelvis cancer, analgetic nephropathy was found in 15.7%.