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V A Mezentsev

Publications and source records attributed to V A Mezentsev.

13 recordsLinked to original sources
PubMed1994

[Current approach to solving the problem of urolithiasis].

The article analyses experience in the management of about 1,500 patients with urolithiasis who underwent in- and out-patient treatment at the Urological Clinic of the Moscow Regional Scientific Research Clinical Institute in 1990-1993. Indications were determined for applying lithotripsy in patients with stones in anomalous kidneys, in cases of a solitary kidney, and children with urolithiasis. The tactics of management of large kidney stones is described. The use of endoscopic methods of treatment (percutaneous and transurethral) is evaluated. Modern methods of urolithiasis treatment were applied instead of an open operation in 90% of patients.

Adolescent↗
PubMedDate not supplied

Extracorporeal shock wave lithotripsy in the treatment of renal pelvicalyceal stones in morbidly obese patients.

INTRODUCTION: Management of urolithiasis in morbidly obese patients is usually associated with higher morbidity and mortality compared to non-obese patients. In morbidly obese patients, since the kidney and stone are at a considerable distance from the skin (compared to non-obese patients) difficulty may be found in positioning the patient so that the stone is situated at the focal point of the lithotripter. OBJECTIVE: To evaluate the outcomes and cost-efficiency of extracorporeal shock wave lithotripsy (ESWL) in the treatment of renal pelvicalyceal stones sized between 6 and 20 mm in morbidly obese patients. MATERIALS AND METHODS: Using various aids, such as mobile overtable module, extended shock pathway and abdominal compression 37 patients with body mass index more than 40 kg/m2 were treated using the Siemens Lithostar-plus third generation lithotripter. The size of renal pelvicalyceal stones was between 6 and 20 mm. Treatment costs for shock wave lithotripsy were calculated. RESULTS: The overall stone free rate at 3 months of 73% was achieved. The mean number of treatments per patient was 2.1. The post-lithotripsy secondary procedures rate was 5.4%. No complications, such as subcapsular haematoma or acute pyelonephritis were recorded. The most effective (87% success rate) and cost-efficient treatment was in the patients with pelvic stones. The treatment of the patients with low caliceal stones was effective in 60% only. The cost of the treatment of the patients with low calyceal stones was in 1.8 times higher than in the patients with pelvic stones. CONCLUSION: We conclude that ESWL with the Siemens Lithostar-plus is the most effective and cost-efficient in morbidly obese patients with pelvic stones sized between 6 and 20 mm. 87% success rate was achieved. The increased distance from the skin surface to the stone in those patients does not decrease the success rate provided the stone is positioned in the focal point or within 3 cm of it on the extended shock pathway. ESWL should not be considered as the first line of treatment in the morbidly obese patients with low caliceal stones where the stone was positioned more than 1 cm from the focal point on the extended shock pathway.

Adolescent↗
PubMedDate not supplied

[The functional assessment of the renal parenchyma and perirenal fatty tissue during electropiezolithotripsy by x-ray computed tomography].

Computed tomography was performed before and after telelithotripsy to evaluate changes in renal parenchyma induced by the procedure in 34 patients with nephroliths. Piezolith-2300 lithotriptor ("Wolf", FRG) was employed. The images showed no serious parenchymal injuries or paranephric hematomas, on the one hand, but density changes in the parenchyma, on the other hand. These were of 3 types: focal reduction in 3, diffuse reduction in 4 and diffuse increase of the density in 2 patients. As shown by comparison with literature data, telelithotripsy on "Piezolith-2300" causes minimal changes in renal parenchyma and perirenal fat. In view of this, the procedure is recommended for wide clinical and outpatient practice.

Adipose Tissue↗
PubMedDate not supplied

[The effect of extracorporeal piezoelectric lithotripsy on cardiac activity].

To evaluate cardiac effects of shock waves, 40 patients with uroliths (10 subjects with and 30 without arrhythmia) were examined during their exposure to remote electropiezolithotripsy (Piezolith-2300 unit). Arterial pressure and ECG were registered before, during (upon 1500 and 3000 impulses) and after the session. Except a slight deceleration of the heart rate, no cardiac disorders significant clinically were reported.

Adult↗
PubMedDate not supplied

[Urolithiasis in children].

The paper reviews the experience of the urological clinic in the treatment of 106 children with urolithiasis. The necessity of careful pretreatment examination to reject associated anomaly of the upper urinary tracts as a cause of lithogenesis is emphasized. Surgical treatment and extracorporeal lithotripsy which has proved highly effective against uroliths in children are considered.

Adolescent↗
PubMedDate not supplied

[Extracorporeal lithotripsy in certain forms of urolithiasis].

Therapeutic results of remote lithotripsy have been analyzed for 1016 patients with urolithiasis. The authors also focus on specific features of remote lithotripsy in anomalous stones, in nephroliths on the single and transplanted kidney, in location of the stone in the ureter. The efficacy of the procedure is reviewed in pediatric patients. Satisfactory results were achieved in 962 patients (95%). Remote lithotripsy is considered to be a valuable component of combined treatment of urolithiasis replacing successfully open surgery in 95% of the cases.

Adolescent↗
PubMedDate not supplied

[Extracorporeal lithotripsy in the treatment of urolithiasis].

The material gained in the urological clinic of the Moscow Regional Research Clinical Institute covers 2000 cases of uroliths treated with extracorporeal lithotripsy (ECL) for 4 years. Factors implicated in the treatment outcomes, measures to prevent ECL complications, recommendations for ECL regimens in different clinical forms are specified.

Adult↗
PubMedDate not supplied

[The international system of overall scoring assessment of the symptoms and quality of life of patients with benign prostatic hyperplasia].

The paper presents the International system of overall score estimation of symptoms and life quality for patients with benign prostatic hyperplasia and reviews the results of this system application for objective diagnosis and evaluation of the efficacy of the treatment (chemotherapy, transurethral resection, transvesicular adenomectomy, transrectal hyperthermia, YAG-Nd laser prostatectomy) in 250 patients with benign prostatic hyperplasia. The fault of the system is the absence of specific recommendations for rating objective test results. The authors propose their variant of estimation of prostatic volume, maximal urination rate, residual urine.

Diagnosis, Differential↗
PubMedDate not supplied

[The treatment procedure in patients with a combination of kidney tumor and urolithiasis].

Renal carcinoma and urolithiasis combine rather rarely. Postnephrectomy patients often consult the urologist when the condition is serious because of complications resultant from uroliths in the contralateral kedney. In view of solitary kidney, progressive chronic pyelonephritis, associated chronic renal failure surgical treatment of the condition becomes risky and necessitates individual approach to choice of therapeutic policy and definition of indications to urolithiasis treatment in patients after nephrectomy for renal carcinoma. This includes the decision whether to perform nephrolithiasis before or after nephrectomy and whether to attempt any surgery in the absence of urolithiasis clinical symptoms.

Adult↗