[Pre- and postnatal diagnostic imaging of congenital urinary tract disorders]. / Prä-und postnatale bildgebende Diagnostik angeborener Harnabflussstörungen.

The prenatal diagnosis of urinary tract obstruction was made in 10 neonates. These findings were confirmed postnatally by sonography, urography, voiding cystourethrography, and scintigraphy. There were 8 neonates with unilateral obstruction of the ureter, and 2 with urethral valves and reflux. Nephrectomy because of hydronephrosis was necessary in 2 instances. The prenatal diagnosis of a urinary tract obstruction is of great importance, because the neonate may be operated upon without delay. Thus the diseased kidney can be saved. Diuretic radionuclide urography is helpful in differentiating between dilated obstructed and dilated nonobstructed kidneys.

[Foreign body aspiration in childhood: diagnostic problems]. / Fremdkörperaspiration im Kindesalter: diagnostische Probleme.

The authors report on 33 children with aspirated foreign bodies not casting a shadow. These included 21 children who had been referred to hospital after more than 24 hours, in some cases only after weeks and months following aspiration or onset of symptoms, and in whom bronchoscopy was thus performed with considerable delay. The study shows that most of the patients presented a pathological x-ray pattern of the thoracic organs; but it also shows that even a "n.a.d." finding should never be an excuse not to perform bronchoscopy if there is the slightest suspicion of aspiration. The authors analyse the reasons causing the delay in diagnosis and treatment.

[Diagnostic problems with foreign-body aspirations in childhood]. / Diagnostische Probleme bei Fremdkörper-aspirationen im Kindesalter.

Diagnosing aspiration of foreign bodies in children still causes a great deal of difficulties, especially as the anamnesis is not always dependable and the aspiration has often not been noticed. This is why it sometimes takes months before the foreign bodies are discovered and removed. Quite often a child is treated over a long period for bronchitis which is actually caused by a foreign body. This report is based on experience with 33 children between 8 months and 15 years, who aspirated foreign bodies and were treated by bronchoscopy. The diagnostic difficulties are described with special emphasis on radiodiagnosis.

[Animal experiments on ozone therapy of non-irradiated and irradiated tumors. II. Ehrlich ascites carcinoma in vivo]. / Tierexperimentelle Untersuchungen über die Anwendung von Ozon auf unbestrahlte und bestrahlte Tumoren. II. Ehrlich-Asziteskarzinom in vivo

Mice, carriers of the Ehrlich ascites carcinoma, were exposed to a fractionated whole-body irradiation with four times 750 R. Before resp. after each exposure, an ozone-oxygen mixture was intraperitoneally injected. In other cases, the ozone-oxygen mixture was given without irradiation. Ozone had no essential effect upon the transplantation capacity neither in irradiated ascites cells nor in cells not exposed to radiation. Ehrlich ascites tumor cells, transplanted into a subcutaneous air-pocket under the abdominal skin of the mouse, developed a solid tumor and a fluid accumulation without cells. A diminution of the fluid was brought about by means of a fractionated local irradiation with five times 200R, by a secondary treatment with ozone and also by ozone alone. Evidence of damage to the tumor cells, however, is only to be produced by investigations into the metabolism and reproductive capacity of these cells.

[Animal experiments on the use of ozone in irradiated and non-irradiated tumors. III. Ehrlich-ascite carcinoma cells in vitro]. / Tierexperimentelle Untersuchungen über die Anwendung von Ozon auf unbestrahlte und bestrahlte Tumoren

Measurements carried in vitro were carried out concerning the effectof ozone either by itself or combined with X-ray therapy (single dose of 2000 R) on the reproductive capacity of Ehrlich-ascites cancer cells. The strongest combination effect is stated when ozone is administered after irradiation. The findings and results of this study are compared with hypotheses and results described in the corresponding literature.

[Animal experiment studies on the use of ozone in irradiated and non-irradiated tumors. I. Intravenous ozone therapy of Crocker's sarcoma 180 and Ehrlich carcinoma in the white mouse]. / Tierexperimentelle Untersuchungen über die Anwendung von Ozon auf unbestrahlte und bestrahlte Tumoren. I. Intravenöse Ozonbehandlung des Crocker-Sarkoms 180 und des Ehrlich-Karzinoms der weissen Maus

The fractionated tangential local X-ray therapy, in cases of sarcoma 180 in white mice with a total dose of 1500 R, effects a shrinking of the tumours as well as a certain number of cures. Intravenous administration of ozone in a total dose of 0.15 times 10(-7)g, 1.5 times 10(-7)g, and 15 times 10(-7)g - by itself or together with irradiation - has as consequence neither an inhibitory effect on the tumour growth, nor an increase in radiation effect that are surpassing the diffusion width of the model and are reproducible in an exact manner. It has been possible to prove an inhibition of the tumour growth in the solid Ehrlich's carcinoma of white mice after a fractionated 2000 R irradiation, but also in these cases, no effect of the ozone application was stated.