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Biomedical subjects

K Kocí

Publications and source records attributed to K Kocí.

14 recordsLinked to original sources
PubMed1992

[The effect of extracorporeal shock-wave lithotripsy on renal function].

Using the method of phase scintigraphy, the authors examined 48 patients who were treated by means of extracorporeal shock-wave lithotripsy. The authors proved at the 5% of significance that the development or deterioration of renal functions does not depend on the localization of the concrement and the number of shock-waves needed for disintegration. The authors confirmed the significant effect of the size of concrement on the lesion of renal function--all stones larger than 30 mm lead in 100% to a varying deviation, as compared with the examination made before extracorporeal shock-wave lithotripsy. Obesity has also a significant effect on the development or deterioration of lesions of renal function. From the total number of patients where after lithotripsy a lesion of renal function developed or deteriorated 70.6% were obese! After 24 months in two patients deterioration of the condition, as compared with the initial state, was proved.

Female↗
PubMed1991

[Surgical treatment of obstructive azoospermia].

In 23 infertile men the diagnosis of azoospermia was established. Bilateral biopsy of the testes was made, in four patients primary deficiency of spermiogenesis was revealed, in another four patients the Sertoli cells only syndrome. In a group of 3 men with hypospermiogenesis revision revealed severe hypoplasia of the epididymis which in context with the bioptic finding did not give hope of successful surgery. In the group of four men with normal spermiogenesis revision revealed in one obliteration of the terminal portion of the d. deferens, treated by transurethral discision of the colliculus and in three its partial or total agenesis. In one of the three latter cases bilaterally artificial spermatoceles were implanted which function satisfactorily; in the aspirated contents, however, even after several months only non-motile sperm cells were found. In seven patients epididymovasoanastomosis was performed by the microscopic technique--five times unilateral and twice bilateral. In one patient a condition after bilateral vasectomy was involved which was resolved by vasovasoanastomosis. In three patients after epididymovasoanastomosis azoospermia persists. In another two patients the check-up spermiogram revealed a positive finding, the wife of one of the patients is pregnant at the moment. In one patient the result of the operation cannot be evaluated yet due to a short time interval after operation. One patient did not come for a check-up examination. The patient after vasovasoanastomosis has a positive spermiogram with 38 million sperm cells per ml. In one patient with a discision of the colliculus the spermiogram is negative. The cumulative index of patient anastomoses reported in the literature is approximately 45%, the percentage of pregnancies only 17-18%.

Adult↗
PubMed1990

[Problems with indications for extracorporeal lithotripsy in urolithiasis].

Extracorporeal lithotripsy is a modern noninvasive method for the treatment of urolithiasis. The morphological and functional state of the urinary pathways, the localization of concrement and their size and number call in 35% of the patients for additive and auxiliary operations. Such comprehensive treatment can be provided by departments where all methods for the treatment of lithiasis are readily available. Repeated lithotripsy and combined therapeutic methods of more complicated conditions protract hospitalization and reduce the number of patients. The authors tested in more than 2500 lithotripsies the possibility to apply this treatment in the great majority of lithiases. However, because of the limited capacity they had to reduce the spectrum of indications to a minimum. Retardation of treatment by a protracted waiting period could damage the patient and it is then better to indicate another therapeutic approach; or to provide adequate treatment. We hope that patients who will need treatment after a year's time, will have the opportunity to be treated sooner by lithotriptors which should be installed before long in other departments.

Humans↗
PubMed1989

[Nephrolithotomy using Doppler and dynamic sonography].

In open operations of coralliform or multiple small nephrolithiasis frequently the problem of peroperative localization of residual concrements arises. A simple, reliable, accurate and non-aggressive peroperative detection of concrements in the kidney is made possible by ultrasonography. The method was used in 25 cases, a probe with a frequency of 7.5 MHz makes it possible to detect even minute fragments. On the screen we can see not only the size of concrements but also their distance from the surface, and their position can be accurately assessed three-dimensionally. The surgeon thus can make nephrotomy aimed directly on the concrement. The course of major blood vessels can be detected by means of a Dopplers probe. This procedure makes it possible to make the incision in a relatively avascular zone without the necessity of the application of cooling or ischaemia of the kidney. In the investigated group no false positive finding was obtained, a false negative finding can result from non-systematic examination.

Humans↗
PubMed1989

[Acceleration of the chemolysis of kidney stones using ultrasound. Experimental study in vitro].

The dissolution of infectious renal concrements by means of percutaneous nephrostomy or ureteral catheter often requires lavage lasting several weeks. Using an experiment in vitro, the authors tried to reduce this interval by means of ultrasound. By combination of the physical effect of ultrasound with that of chemolytic dissolution of the infectious concrement was significantly accelerated. Thus, simultaneous intermittent ultrasound application to the body's surface during dissolution could considerably reduce the time needed for the concrement to dissolve in vivo.

Calcium Carbonate↗
PubMed1989

[Extracorporeal shock-wave lithotripsy].

Concrement lithotripsy in the kidney and ureter using extracorporeal shock waves (ESWL) was performed with the aid of a 2nd-generation lithotriptor--Lithostar Siemens. Over a period of 11 months ESWL was applied in 526 patients aged 7 to 80 years, 10 of these were children. 19 patients had bilateral lithiasis so that the treatment was applied to a total of 545 renoureteral units and 698 concrements were disintegrated. In the ureter 34 concrements were disintegrated, the remainder being in the kidney. 12 patients had solitary kidney lithiasis; 62 subjects prior to ESWL, had been operated on the same kidney for lithiasis or on the ipsilateral ureter. Most patients had only local infiltration anaesthesia of the relevant intercostal nerves sometimes supplemented with mild opioid analgesia. Children were operated on in general anaesthesia. More than one ESWL application was needed in 33% cases, 54 disintegrated concrements measured more than 30 mm. Cystine concrements in 2 patients remained unaffected, in 1 woman with apatite lithiasis the disintegration was unsatisfactory. Auxiliary interventions had to be performed in 22% cases, prior to ESWL, and in 13% patients after ESWL, in 1 case following ESWL, open ureteromy was performed. The patient's exposure to radiation is negligibly low, the paramedical personnel is exposed to none. The noise level both for the patient and personnel is within the hygienic limits and is lower than in the case of 1st--generation lithotriptors. The average hospitalization period in patients with unilateral lithiasis lasted 7 days, 8 patients were treated in out-patient departments. When released from the clinic, 39.5% patients had no concrements, the remainder had only minute residual concrements. Three months upon the release, 77.6% patients were found with no demonstrable signs of concrements.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1984

Transabdominal ultrasonotomography of prostatic carcinoma.

In a series of 134 patients with histologically verified prostatic carcinoma, ultrasonotomography, using the transvesical technique, yielded positive results in 97.0% of the cases; in 11.9% inaccessible localization made rectal palpation of the tumour impossible. Ultrasonographic examination is an important contribution to determination of the extent of a tumour whose palpation accessibility is limited and which can be demonstrated only indirectly by radiography. It allows more exact indication of the form of treatment and a non-aggressive follow-up of its effect.

Abdomen↗