[Effect of kidney occlusion on survival in renal cell carcinoma: a 10-year retrospective study].

84 out of 116 patients suffering from renal cancer with comparable tumor stages were nephrectomized. 39 out of these 84 patients have had an additional embolization preoperatively. The survival rate and the development of metastases did not show any significant difference between only nephrectomized and occluded plus nephrectomized patients.

[Malignant kidney tumors in old age--postoperative complications and mortality].

Surgery was performed on 38 patients over 70 years of age with malignant renal tumours. The mortality rate (29%) and the incidence of postoperative complications (18%) were relatively high. Various means of preventing these complications, taking the factor of old age into particular consideration, are discussed in this paper.

[Possibilities for the use of sonography in kidney injuries].

As a non-invasive, easily repeatable examination ultrasound can supplement or even replace angiography in cases of renal trauma. Since it is moreover cheap and quickly performable, an ultrasound examination should never be omitted when renal trauma is suspected. It does not matter whether it is performed before or after infusion urography; this will mainly depend on the facilities available.

[Initial experiences with the neodym YAG laser in urology].

The present study reports the therapeutic results obtained by using neodym-YAG laser for the coagulation of tumours of the external genitals (n = 30), as well as for endoscopic laser treatment of tumours of the bladder (n = 32) and the urethra (n = 2). Despite the small number of cases, laser treatment of bladder tumours (observation period 6-33 months) appears to reduce the orthotopic recurrence rate, which is in aggrement with other publications. However, randomized studies will be necessary to prove the advantages of the above-mentioned method as compared with electroresection.