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  • 1
    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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  • 2
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Polymorphisms in the vitamin D receptor (VDR) gene have been analyzed in several studies for an association with prostate cancer (PCA) and odds ratios (OR) ≥3 have been observed in study populations from North America. We studied three polymorphisms in the VDR gene (poly-A microsatellite, TaqI and FokI RFLPs) in 105 controls and 132 sporadic PCA cases from France and in a collection of families from Germany and France. The polymorphisms near the 3' end of the gene were in linkage disequilibrium with an almost complete coincidence of the short poly-A alleles and t (presence of the restriction site) of the TaqI polymorphism, (contingency tables, P〈0.0001). An association was found by logistic regression for the poly-A between PCA and the heterozygous genotype (S/L; S〈17, L≥17, OR=0.44, 95% confidence interval, CI=0.198–0.966, P=0.041). OR was lower in patients ≤70 years old and patients with a Gleason score ≥6. The Tt genotype of the TaqI RFLP also showed an association with PCA (OR=0.5, CI=0.27–0.92, P=0.026). This association was also stronger for patients ≤70 years old (OR=0.31, CI=0.15–0.63, P=0.001). The risk alleles were S and t alleles as indicated by the OR of the homozygotes, although these were not significant. The FokI RFLP at the 5' end of the gene did not reveal any association (P〉0.7). While some association studies differ between Europe and North America, our present findings with the VDR gene agree with those from North America, indicating a weak but general role of the VDR in PCA susceptibility.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reproduktionsmedizin 16 (2000), S. 420-427 
    ISSN: 1434-808X
    Keywords: Schlüsselwörter Prostatakarzinom • Genetik • Linkage-Analyse • Assoziationsstudien ; Keywords Prostate cancer • Genetics • Linkage analysis • Association studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Prostate cancer is the most common malignancy in men with a lifetime risk of about 15 %. Similar to the situation in breast cancer, approximately 10 % of the cases are familial and most probably hereditary. Both of the classical approaches to resolve genetic predisposition or susceptibility, association studies and linkage analyses, have been used and linkage analyses revealed 6 confirmed and a series of as yet unconfirmed chromosomal regions which harbour genes predisposing to prostate cancer. These regions are, however, too large to allow for a direct positional cloning approach at about 20 cM centiMorgan corresponding to 20 million base pairs. Hence no gene has been cloned up to now. The variety of different genes responsible for the risk in different populations renders analysis difficult and prevents molecular diagnosis from being established. When the first genes and mutations are found a considerable number of families can be expected to ask for molecular diagnosis.
    Notes: Zusammenfassung Das Prostatakarzinom (PCA) ist mit einem Lebenszeitrisiko von ca 15 % die häufigste maligne Erkrankung beim Mann. Ähnlich wie beim Mammakarzinom der Frau sind etwa 10 % dieser Fälle familiär und vermutlich genetisch bedingt. Von den beiden Ansätzen zur Klärung genetischer Disposition, Assoziationsstudie und Linkage-Analyse, war beim PCA der 2. bislang erfolgreich. Es wurden 6 gesicherte und eine Reihe weiterer zu vermutender chromosomaler Regionen identifiziert, in denen prädisponierende Gene liegen. Diese Regionen sind jedoch jeweils zu groß (20 cM entsprechend ca. 20 Millionen Basenpaaren), als dass das jeweils entscheidende Gen darin hätte gefunden werden können. Die Vielzahl verschiedener und in unterschiedlichen Populationen verantwortlicher Gene erschwert die Untersuchungen erheblich und hat bislang verhindert, dass molekulare Diagnostik etabliert werden konnte. Mit der Identifikation von Genen und Mutationen dürfte aber rasch ein erheblicher Bedarf an molekulargenetischer Diagnostik entstehen.
    Type of Medium: Electronic Resource
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