摘要:

The use of optical microscopy and scanning electron microscopy combined permits a more far-reaching investigation of a given specimen. The subsequent element distribution analysis (EDAX system) allows the determination of mixed phases, inclusions and single crystals. The instrument combination was successfully tried on urinary crystals and thin sections of urinary calculi. The description of some findings, with the aid of examples, explains the efficiency of the system in the expansion of urinary calculus analysis.

ISSN:0042-1138    

DOI:10.1159/000280772

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

32 patients whose condition was diagnosed as carcinoma of the urinary bladder were subjected to weekly intravesical instillation treatment with adriamycin for a period of 6 weeks after transurethral resection of the tumours. The oncolytic and thus recurrence-preventive value of treatment was determined by endoscopic controls with exploratory excisions. All in all a persistent tumour was found in 31% of the cases and a recurrenc-free course in 69% over a minimum observation period of 1 year. These results are definitely better than those for comparable instillation treatments with surface-active or immunologically active substances.

ISSN:0042-1138    

DOI:10.1159/000280773

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

Examination of exfoliated urothelial cells present in the urine has been shown to be diagnostic by many researchers, but cytology is not yet widely accepted for routine diagnostic purposes. Cytology is highly efficient in the primary diagnosis of high grade transitional carcinoma (grade II–III) but of limited value in the diagnosis of benign papilloma and low grade tumors. The sensitivity of cytology would be increased by improving the techniques of collecting cells out of the urine, using highly sensitive staining techniques and by objective cytologic measuring methods. Using a computer-based cytophotometric microscope, the cytologic analysis of 26 patients with bladder tumors are represented. There is evidence that a computerized measuring system is able to detect bladder tumors with a high accurac

ISSN:0042-1138    

DOI:10.1159/000280774

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

A new in vitro method was employed which enabled detailed examination of the initiation and propagation of the peristaltic contraction of the renal pelvis and ureter. Both the kidney and its attached ureter were carefully removed and the renal parenchyma concealing the renal pelvis and calyces removed under the dissection microscope. At the pelvicalyceal border, ripple-like peristaltic contraction of a constant frequency were observed. At the same time, electromyograms with a slow rising phase were recorded at constant intervals from the pelvicalyceal border, leading us to deduce that these might represent pacemaker potentials. The discharge interval of electromyograms recorded at both the center of the pelvis and the pelviureteric junction were found to be a multiple of the ‘pacemaker’ interval. Electrical activity (peristalsis) arising from the pacemaker might be blocked at not only the center of the pelvis but also at the pelviureteric junct

ISSN:0042-1138    

DOI:10.1159/000280775

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

The effect of the urethrovesical suspension according to Pereyra (combined with vaginal repair and hysterectomy) was analyzed using urodynamic and clinical data of 30 stressincontinent women before and 1 year after the operation. Parameters of 149 patients also suffering from stress incontinence treated by anterior colporrhaphy were studied in a similar way. The comparison showed that women with an unusual short urethra ( < 22 mm) and a low urethral closure pressure ( < 45 cm H2O) are not expected to be continent after anterior colporrhaphy. In these cases the Pereyra suspension could be indicated to reduce the risk of recurrent incontinence.

ISSN:0042-1138    

DOI:10.1159/000280776

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

A new antiseptic contrast material, composed of sodium diatrizoate-meglumine diatrizoate and PVP-iodine solution, was prepared and tested for retrograde cystography. It was tested in vitro and in dogs, showed satisfactory radiological features and rapid wide bactericidal action without detectable side effects. Septic complications following radiological demonstration of the urinary tract may be reduced.

ISSN:0042-1138    

DOI:10.1159/000280777

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

There are numerous reports dealing with the significantly reduced citrate secretion in (recurrent) stone formers. The critical values of the Ca/citrate ratio in the nocturnal urine of (oxalate) stone formers has also been reported, emphasizing the need of medicaments being capable to increase the citrate secretion and to raise the basal citrate level of the nocturnal urine in these patients. In our in vitro experiments, we tested quantitatively the inhibitory activity of some new substances on crystal growth. In Wistar rats we measured the Ca2+-binding capacity as well as the citrate and oxalate excretion before and after oral application of a great number of new compounds. Some of them were highly efficacious in the reduction of the Ca-oxalate activity product, as can be derived from the increased Ca2+-binding capacity and/or the decreased oxalate secretion in urine.

ISSN:0042-1138    

DOI:10.1159/000280778

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

Nine kidneys with typical xanthogranulomatous pyelonephritis (XP) involvement were investigated on the occurrence of bacteria, bacterial fragments and antigen, in light microscopy using Gram staining and immunohistochemistry, and by electron microscopy. The present study did not reveal any occurrence of bacteria, bacterial fragments or antigen. It is concluded that the xanthogranulomatous reaction in man represents a resorption phenomenon, and not an immunological reaction to bacteria or bacterial antigen.

ISSN:0042-1138    

DOI:10.1159/000280779

出版商:S. Karger AG    

年代:1981

数据来源: Karger