[Detecting recurrence by computer-assisted tumor after-care in renal cell carcinoma].

In a period of 11 years (1977-1988) 111 patients were recorded after tumor nephrectomy because renal cell carcinoma in a computer-assisted follow-up program. The controls were performed in the first postoperative year every thirds months, from the 2nd to the 5th year 6-monthly and yearly after the 5th year including complete blood count, erythrocyte sedimentation rate, serum creatinine, electrolytes, blood glucose, liver enzymes, ultrasonography (kidney, renal lodge, liver, retroperitoneum) and chest roentgenogram, but 6-monthly also computerized tomography and bone scan. The drop-out rate was 18.2% (20/110). In the other 90 patients a recurrent disease was found in 16.7% (15/90) and 5.6% (5/90) have been treated operatively. Currently, all patients survive after recurrent operation. Therefore, these results may support a computer-assisted follow-up in tumor patients with increasing compliance and efficacy.