[The peculiarities of renal lesion in nodular polyarteritis].

Analysis of the medical records of 122 patients with nodular polyarteritis showed that the most frequent visceral manifestations were renal (93.4%), cardial (72%), and gastrointestinal (57.4%) ones. Central nervous system (CNS), pulmonary, and peripheral arterial lesions were less frequent (36.8%, 17.2%, and 6.6%, respectively). Renal lesions were manifested by arterial hypertension (AH) in 107 patients, urinary syndrome in 97, nephrotic syndrome in 7, and rapidly progressing glomerulonephritis in 5 patients. Monofactor analysis revealed the following predictors of poor prognosis: malignant AH, nephrotic proteinuria, male sex, body mass reduction, intestinal ulcers, gastrointestinal hemorrhage, CNS lesion, heart failure, and pulmonary lesion. The relative risk of lethal outcome was the highest in nephrotic proteinuria (3.5) and malignant AH (2.9). In 56% of cases death was caused by cardiovascular complications, in 18%--chronic renal failure, in 11%--abdominal complications.