[Aspects of roentgen ray burden in endourologic surgery].

In 1987 a total of 322 endourological procedures with punctual use of x-rays were performed at our ultrasonographic-radiological working table. The personal-dosimetric supervision of 4 surgeons who performed the interventions was analyzed in dependence of our local dosimetric realities. The radiation exposure of the surgeon and the possibilities of supervision and reduction of the exposition are presented.

[Tumor marker diagnosis in non-seminomatous testicular tumors using human chorionic gonadotropin (HCG) and alpha fetoprotein (AFP)].

In 28 patients with non-seminomatous testicle tumour the tumour markers human chorionic gonadotropin (HCG) and alpha-fetoprotein (AFP) were determined radioimmunologically and enzymeimmunologically, respectively. While tumours with chorionic carcinoma (n = 8) always were marker-positive, in the embryonic carcinoma in 2 out of 10 cases falsely negative findings appeared. On 5 patients the biochemical monitoring of the course of the testicle tumour disease is demonstrated in detail by means of HCG and AFP and estimated as very helpful method.

[Percutaneous, transrenal balloon catheter dilatation. A possibility for the treatment of uretero-enteral implantation stenoses].

In contrast to the undisputed position of percutaneous translumenal balloon catheter dilation of arteriostenoses, the use of this method on strictures of the efferent urinary tract is hardly known. Encouraged by initial promising reports, we present our own application of this method in a cases of bilateral recidive implantation stenoses with progressive hydronephrosis following operative revision of a Bricker conduit. Balloon dilation (Grüntzig catheter) was performed several times antegradely via previously made bilateral percutaneous pyelonephrostomies.

[Experiences with oscilloresistometry in addition to spirometry in preoperative function diagnosis in the elderly].

A sample of 57 geriatric surgical patients were investigated with the aim of establishing which additional information the forced oscillation method yields for the assessment of an increased operation risk as compared with spirometry. In addition to the proved diagnosis of a restrictive ventilatory disturbance as causing a limitation of the maximum available respiratory volume, the measuring of the oscillatory resistance makes it possible in particular to prove and quantify the obstruction. Over and above this, the measuring of resistance fluctuation while breathing at rest makes it possible to differentiate a geronto-typical exobronchial component of the obstruction.

[Treatment of non-seminomatous testicular tumors in combination with vinblastine/bleomycin and adriamycin/cisplatin].

Following orchiectomy and retroperitoneal lymph node dissection (RND) 11 patients with non-seminomatous testicular cancer were treated alternately with combination chemotherapy consisting of vinblastine/bleomycin and adriamycin/cis-dichlorodiammineplatinum (II) (DDP). A total of 39 course of vinblastine/bleomycin and 36 course of adriamycin/DDP were administered. The two patients with disseminated testicular cancer came into complete and partial remission respectively.