[Surgical treatment of hydronephrosis].

The objective of the study was to find the most suitable method of surgery of primary hydronephrosis and congestive horseshoe kidney, based on the authors own experience. The result was the finding that plastic resection operations according to Anderson-Hynes and flap operations in long stenoses and horseshoe kidneys meet the demands which are the prerequisite of favourable therapeutic results.

[Treatment of infertility in nonobstructive azoospermia using the TESE method (testicular sperm extraction)--clinical results].

Sperm was found in 56.6% of TESE cycles in 27 men with non-obstructive azoospermia. Using testicular sperm, 30% oocytes were fertilized.

[Treatment of infertility in non-obstructive azoospermia using the TESE (testicular sperm extraction) method--clinical study].

Testicular sperm extraction (TESE) was performed in 27 men in 30 cycles. All men were examined for genetics, serum hormonal status, biochemical status of semen samples. All men were examined by an urologist.

[Treatment of male infertility after oncologic therapy: preventive autologous sperm preservation versus testicular biopsy and oocyte fertilization with testicular spermatozoa].

The prognosis of oncological therapy of some malignancies is favourable. Unfortunately the majority of young patients remain sterile. Sperm cryopreserved before treatment was successfully used in IVF-ICSI (in vitro fertilization-intracytoplasmic sperm injection) cycles.

Infertility treatment of men with non-obstructive azoospermia.

Male infertility can be treated by several methods with varying degree of success. We present evidence that "open" testicular biopsy is favorable for men suffering from non-obstructive azoospermia (NOA). Moreover, any NOA patient may be subjected to this treatment even though his past histopathological examinations suggest that it is likely no sperm will be found in the testicular tissue.

Testicle hemodynamics in patients after laparoscopic varicocelectomy evaluated using color Doppler sonography.

Objectives: Testicular blood supply and semen quality were compared in two groups of patients undergoing laparoscopic varicocelectomy: group I (n = 27) with spermatic artery ligation and group II (n = 48) with spermatic artery preservation.

Methods: Laparoscopic varicocelectomy was performed on 75 patients divided on the basis of whether ligation took place during surgery or not. The blood flow parameter (resistance index-RI) measured using color Doppler sonography was the index of vascular efficiency selected.

Familial hydronephrosis unlinked to the HLA complex.

Clinical findings, management, and possible linkage of congenital hydronephrosis caused by ureteropelvic junction stenosis to the HLA complex were studied in four families. These families provide evidence of possible autosomal dominant inheritance. HLA class I antigen studies in all four and class II (HLA-DR) in three families were performed.

[Transvaginal urethrovesicopexy].

The authors present their own modification of Stamey's operation of female stress incontinence. Using a two-needle applicator of their own design, they introduce by transvaginal punction fibres next to the cervix of the bladder into the epigastrium. By tightening the fibres they elevate the cervix of the bladder.

[Personal experience in treatment of urolithiasis using the MEDILIT M6 extracorporeal lithotriptor].

The authors report on their experience with the destruction of kidney stones with the lithotriptor MEDELIT M6 of Medipo Co. BRNO on the development of which they participated. They checked 878 patients where the instrument was used and where the condition of a half-year interval after the operation had been met.

Contribution to the clarification of heterogeneous foci within the prostate.

The determination of the nature of heterogeneous foci within the prostate is up till now insufficient. With the help of a standard method using a scanner with a changeable plane of cut and frequency of 7.0 MHz, 292 patients were examined with an enlarged or standard size of prostate and with morphologically proved prostate cancer.

The initial experience with doppler diagnosis of scrotum disease abstract.

Blood flow parameters in the scrota of 83 men with acute and chronic infra scrotal disease were compared with values from a sample of 70 healthy controls, using doppler ultrasonography. The results confirm the validity of this method in the diagnoses of scrotum disease when combined with other methods of examination. Technical difficulties are discussed.

Protection of kidney cell against ischaemic damage by decreased kidney temperature.

At normal body temperature, kidney cells are highly sensitive to hypoxia. However, a bloodless operative field is advantageous in some interventions on the kidney. Kidney cells can be protected against the damage that might occur once blood flow has been interrupted pharmacologically or physically by reducing their temperature.

A revised coil for the external cooling of the kidney.

The authors describe a coil they have developed for contact peroperative hypothermia of the kidney. This new type of coil eliminates the disadvantages of existing cooling coils, namely slow thermal transfer from kidney to cooling agent due to imperfect contact between the coil and the concave surface of the kidney, use of an inadequately conductive material and thermal losses from the outer surface of the coil. Special features of the coil described here include its construction to match the contours of the kidney, isolation of external shell to reduce thermal losses and continuous monitoring of renal tissue to reduce the danger of overcooling.

A revised instrument for the regulated external cooling of the kidney.

The authors describe the instrument they have developed for the regulated external cooling of the kidney. This consists of a cooling thermostat fitted with a circulating pump, coils of their own construction for the surface cooling of the kidney and equipped with sensors for the measurement of kidney surface temperature, tube connectors, and a sensor for the measurement of the cooling medium temperature. A cooling liquid is supplied by means of a circulating pump from a thermostat through elastic tubes into the flow channels of the cooling coils.

Kidney temperature measurement. Thermistors for temperature measurement.

During a study of the protective effects of cold on kidney cells under conditions of interrupted blood circulation, it was found that attention must be paid to the temperature of kidney tissue in order to prevent cell damage caused by an excessively reduced temperature. The authors correspondingly developed an instrument for the measurement of kidney tissue temperature where thermal sensors located in a needle are able to measure deep temperature in live tissue under conditions of external hypothermia. Thermal sensors were also placed in a hypothermal coil for contact measurement of surface temperature of a cooled kidney and in a duct for supply of cooling medium into a coil.

A comparison of various methods for cooling the kidney.

Various methods for achieving preoperative renal hypothermia were tested and evaluated. A kidney immersed in an oil bath solution at 4 degrees C resulted in the highest rate of contact hyperthermia at a determined safe temperature of cooling medium. The acquired basic temperature curve served as a model for the comparison of other methods tested.

[Hypophysectomy as a possible therapy in prostatic carcinoma].

Hypophysectomy had been introduced in the therapy of advanced stages of prostatic carcinoma at the Clinic of Urology, University Hospital in Olomouc, in collaboration with the Research Institute of Higher Nervous Activity, 10 years ago. The tissue of the hypophysis is disintegrated thermodynamically which was performed in 19 patients. At the time of indication for this intervention, three patients had tumor in the stage T3, others in the stage T4.

[Comparison of digital and sonographic rectal examination in the diagnosis of carcinoma of the prostate].

Comparison of results of digital and sonographic rectal examination with morphological examination revealed a high percentage of agreement in prostate glands enlarged as a result of benign or malignant process, however, only in 50% in case of intraparenchymatous foci. It is possible to detect these foci sonographically even when the finding on palpation is normal. From the different echogenity conclusions cannot be drawn on the nature of the pathological process.

[Bilateral testicular tumors].

Bilateral testicular tumours account for cca 2-4% of all testicular tumours. In 1975-1989 at the Urological Clinic of the Faculty Hospital with Policlinic in Olomouc a total of 272 patients with testicular tumours were treated, incl. 6 with bilateral tumours which developed successively.

Triorchidism.

Polyorchidism is a rare congenital abnormality. This is a case of triorchidism that was suggested preoperatively by scrotal sonography.

Contribution of transurethral sonographic examination in diagnostics and treatment of superficial urinary bladder tumours.

For the determination of the operation treatment tactics concerning urinary bladder tumours, the state of the disease stage has the principal importance. Sonography introduction has reflected in more accurate diagnostics. The authors carried out the determination of the stage with the accuracy of 89.