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  • 1
    ISSN: 1432-1440
    Keywords: Germ cell tumors ; Gonadal toxicity ; Chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The impact of aggressive chemotherapy on reproductive and endocrine gonadal function was prospectively studied in 44 patients with germ cell tumors. Diagnostic procedures to determine gonadal toxicity consisted of hormone determinations, semen analyses, interviews with a standardized questionnaire, and gonadal histology. After chemotherapy all patients showed elevated serum levels of follicle-stimulating hormone (FSH) and azoospermia due to germ cell and stem cell loss. Recovery of spermatogenesis, as indicated by normalization of serum FSH levels and sperm density, occurred in 77% of the patients 25–60 months after cessation of chemotherapy. In all patients serum testosterone and luteinizing hormone (LH) values remained within normal limits after therapy indicating resistance of Leydig cells to cytotoxic drugs. Three patients fathered four healthy children after completion of chemotherapy. These data suggest significant reproductive dysfunction in all men treated for germ cell tumors. However, most patients showed late and complete recovery of spermatogenesis. In contrast, endocrine gonadal function was unaffected after chemotherapy in all patients. FSH and LH are feasible markers to assess drug-induced gonadal toxicity.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 6-8 (May 2005), p. 517-524 
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The manufacturing technique of driving is one of the oldest procedures for sheet metal forming and has been used in the ancient world for the production of copper pots and vases. This technique is still utilized for niche applications but today has lost its importance. The process of driving is almost completely carried out manually and thus is only appropriate for very small quantities or in case of failure of other production processes. Since individualization of products is strongly gaining in significance, forming processes have to be found, which are independent from expensive tools and equipment. Using driving as the process of choice to form sheet metal, the grade of automation of the forming process has to be increased. Numerically controlled driving, i.e. automated positioning and handling of the work piece during the production process, will need a conclusive simulation base. This paper provides results of the analysis of sheet steel angles formed by the driving sub groups of shrinking and stretching
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0022-4731
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 14 (1996), S. 22-26 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary From April 1986 through May 1995, 306 men with primary urothelial carcinoma underwent radical cystoprostatectomy and orthotopic bladder substitution via the ileal neobladder. Altogether, 7.5% of the patients suffered general early complications, including thrombosis, embolism, wound infection, and pneumonia. Specific early complications directly related to formation of the neobladder and requiring surgery included ileus (4%), abscess drainage (2%), and leakage of the ileal anastomosis (0.5%). The early reoperation rate was 6.5%. Early complications that required temporary percutaneous drainage were lymphocele formation (3%) or ureteral obstruction (6%). In all, 9% of our patients required prolonged catheter drainage for leakage of the ileouretheral anastomosis. Late complications requiring reoperation were ileus (2%), abscess drainage (1%), neobladder fistula to the colon (1,5%), ureteral reimplantation because of obstruction (3.6%), and nephrectomy for hydronephrosis (1%). A transurethral incision of the ileoureteral anastomosis was necessary in 7% of cases. Continence was separately addressed by sending each patient and his home physician a detailed questionnaire: Using our criteria (no diapers, no awakenings) the night and day continence rate increased from 67% at 6 months, to 72% at 1 year, to 85% at 2 years, finally reacting 90% after 4 years. In part II of this presentation we address the question as to whether the option of orthotopic bladder replacement has any impact on the patient's and physician's decision toward earlier cystectomy. We compared our ileal neobladder cohort with a group of 137 patients that had been operated on during the same time span by the same group of surgeons. There was no negative selection with regard of the tumor stage of our patients. However, as compared with the conduit group, the neobladder cohort had a significantly improved survival rate. This phenomenon is explainable by the significantly lower number of previous transurethral resections of the bladder (TUR-Bs) performed in the neobladder group. The time span between primary diagnosis and cystectomy was 10 months in the neobladder group as compared with 18 months in the conduit patients. These data reinforce our belief that orthotopic bladder replacement using the ileal neobladder yields an extraordinary functional result that can be accomplished with a high degree of patient satisfaction and minimal complication. The availability of orthotopic bladder replacement does indeed stimulate the physicians and patients decision toward earlier cystectomy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 1 (1983), S. 186-191 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of therapeutic management in cystinuria is simply to keep the urinary cystine concentration less than supersaturation and thus to prevent cystine precipitation and subsequent stone formation. However, the results in clinical experience with cystinuria treatment continue to be poor. The most promising form of therapy at present is changing cystine to a chemically more soluble form. Until now, treatment has relied primarily on d-penicillamine. However, the drug has serious side effects that limit its application. MPG is a newly developed drug, promising higher effectiveness and lack of toxic side effects. From 1970 to 1983, 38 female and 61 male cystinuric stone formers with a mean age of 36 years have been treated with MPG. Of these 99 patients, 42 form the basis of a report on long-term follow-up, i.e., MPG treatment for a period greater than 3 years. The dose of MPG required was adjusted to the urinary cystine level, which should be less than 100 mg/d if calculi are to be prevented. The results were as follows: 1) There was no recurrent stone formation except at the immediate onset of the MPG therapy when 14 of the 42 patients continued to pass small calculi. However, in these patients this must be attributed to their failure to follow the MPG regimen appropriately in the early days of the therapy. 2) The routinely performed tests were normal through the years, and there were no major side effects necessitating withdrawal of the drug. 3) Unfortunately, continued use of MPG during this 10-year period resulted in a slight loss of effectiveness in 27 of the 42 patients. In these patients the dosage had to be increased stepwise from 600 to 2,000 mg/d. 4) After a dosage increase to finally 2,500 mg/d after a treatment period of 9 years, the cystine excretion in only one patient showed no further response and thus this patient is the only treatment failure. Because of its high effectiveness and lack of toxicity MPG currently should be the treatment of choice in cystinuric stone-forming patients.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 5 (1987), S. 259-261 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Until recently, the indications for extracorporeal shock wave lithotripsy (ESWL) have been limited to renal calculi and ureteral calculi above the pelvic brim. However, the distal ureter can be made available for shock wave treatment as well, by modifying the position of the patient on the support of the Dornier lithotripter HM-3. Using this “sitting position” technique, 133 patients with stones or stone fragments in the lower ureter were treated from January through November 1986. Treatment was successful in 125 patients (94%), 14 of whom required 2 sessions. In 8 patients, treatment failed and stone removal was accomplished using ureteroscopy or open surgery. No complications or adverse side effects were encountered in the entire series. We consider ESWL the treatment of choice in the management of distal ureteral calculi and Steinstrassen.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1335
    Keywords: Interferon plus MPA ; Advanced renal cell cancer ; Medroxyprogesterone acetate (MPA)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The response rates in metastatic renal cell cancer (RCC) after chemotherapy, hormonal treatment, or immunotherapy rarely exceed 15%. Recently, interferon alpha (IFNα) was used for treatment of this disease in several studies which also demonstrated response rates of 15%. In order to test whether IFN therapy combined with hormones would result in higher response rates we compared single agent IFN therapy with a combined therapy of rIFNα 2C plus medroxyprogesterone acetate (MPA) in a randomized multicenter trial. The rIFNα 2C (2MU) was given s.c. 5 times per week for 8–12 weeks and subsequently once weekly until week 48. In the combined treatment, 750 mg MPA was given p. o. daily until week 48 in addition to the IFN as described. The overall response rate in 93 evaluable patients was 5.4%, corresponding to 2 complete and 3 partial responses. Median survival was 7 months in both treatment groups. These data confirm the ineffectivity of low IFN doses for treatment of RCC. The low response rate is not increased by addition of MPA to IFN. The analysis of other IFN studies suggests that not only IFN doses but also IFN sources may influence response rates in metastatic RCC.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1433-0563
    Keywords: Key words Incontinence • Collagen ; Schlüsselwörter Inkontinenz • Kollagen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Minimal invasive Methoden in der Behandlung der Streßharninkontinenz erfreuen sich zunehmender Beliebtheit. An der urologischen Universitätsklinik Ulm wird seit 4/93 die transurethrale Kollageninjektion durchgeführt. Es wurden bisher 48 Patienten (26 Männer und 22 Frauen) behandelt. Bei den Männern bestand die Ursache der Harninkontinenz in einem Zustand nach radikaler Prostatektomie (n = 19) oder TURP (n = 7). Bei allen Frauen (n = 22) war zumindest eine Harninkontinenzoperation vorangegangen. Bei den Patienten wurden im Mittel 1,8 Behandlungen durchgeführt, bei denen durchschnittlich 14,5 ml Kollagen injiziert wurde. Bei einer mittleren Nachbeobachtungszeit von 9,2 Monaten sind 68,2 % der weiblichen Patienten sozial kontinent. Bei den Männern sind 47,3 % nach radikaler Prostatektomie und 6 von 7 Patienten nach TURP sozial kontinent. Bei den Männern war das postoperative Ergebnis v. a. abhängig von der Restfunktion des Sphinkterapparates. Insgesamt muß die transurethrale Kollageninjektion in der Behandlung der Streßharninkontinenz als eine interessante minimal invasive Ergänzung im therapeutischen Armamentarium angesehen werden. Dies setzt aber in jedem Fall eine sorgfältige Patientenselektion voraus.
    Notes: Summary Minimally invasive treatment of urinary incontinence has become a subject of major interest in recent years. We examined the use of transurethral collagen injection for incontinence treatment. A total of 48 patients were selectet for this procedure from April 1993 to February 1997 – 26 male patients (19 post-RPX incontinence and 7 post-TUR incontinence) and 22 female patients (all after previous incontinence surgery) were treated by injection of collagen into the continence region. The whole group underwent an average of 1.8 sessions, and a mean collagen injection volume of 14.5 ml was delivered per session. Mean follow-up was 9.2 months. Of the female population, 68.2 % were cured or greatly improved. In the male population only 47.3 % of the post-RPX patients and 6/7 of the post-TUR patients benefited from the procedure. In males, treatment outcome depends on the degree of pretreatment incontinence, because all grade III incontinence patients did worse. Therefore we conclude: transurethral collagen injection is an interesting method in the treatment of urinary incontinence if proper patient selection is assured.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 1 (1983), S. 94-98 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Repeated instillation of adriamycin, mitomycin C and cisplatinum into the bladder of female Wistar rats induced epithelial proliferation and tumors. The induction rate depends on the total dose of the cytotoxic agent administered. No lesions were found in the control group. The biological behavior of the induced lesions is followed up in long-term experiments.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 1 (1983), S. 113-113 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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