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  • 1
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    German Medical Science GMS Publishing House; Düsseldorf
    In:  43. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 29. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 25. wissenschaftliche Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR); 20150902-20150905; Bremen; DOCKR.16 /20150901/
    Publication Date: 2015-09-02
    Keywords: ddc: 610
    Language: English
    Type: conferenceObject
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  • 2
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Secondary resection of metastases remaining after inductive chemotherapy of advanced germ-cell tumors has thus far been obligatory. The absence of malignant components in one-third of all residual tumors and the high risk of the operation have led several authors to reconsider the criteria for this approach. In a retrospective study of 153 cases (127 evaluable) we investigated the histology of the primary tumor and the size of the residual tumor with regard to residual histology and outcome. Patients were divided into the following three groups according to the histology of the primary tumor: group I, pure seminoma (16 patients); group II, nonseminoma without teratoma (32 patients); and group III, nonseminoma with teratoma (79 patients). Among the 16 purely seminomatous tumors, the residual masses ranged from 2 to 12 cm; 12 consisted of necrotic tissue only, 3 contained malignant germ-cell elements, and 1 contained adult teratoma. The residuals of primarily teratoma-free nonseminomas measured 2–16 cm; the smallest residual tumor containing active malignant elements measured 4 cm, and the diameter of the largest necrotic residue was 6 cm. Four residuals contained mature teratoma. The size of residuals from teratomatous primary tumors was 3–24 cm; the smallest malignant tumor measured 5 cm, and the diamter of the largest purely necrotic mass was 8 cm. According to our results, a secondary operation may be omitted if the residual mass of a primary seminoma is smaller than 5 cm or if that of a primary nonseminoma without teratoma is less than 3 cm in diameter. However, firm conclusions can be drawn only after these criteria have been confirmed by an ongoing multicenter trial.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Electrochimica Acta 11 (1966), S. 401-419 
    ISSN: 0013-4686
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A total of 385 patients (83% men, 52% aged 16–30) with urogenital (UG) trauma were treated in 19 urological clinics between April 1984 and December 1986. In all, 41% of the accidents were due to traffic; 13% to work and sports each; 8% to sexual activities; and 6% to violence. The distribution of injury severity included 40% light, 21% moderate and 39% severe. Of 427 UG lesions, 27% were combined with intraabdominal and 24% with pelvic injuries. The kidneys were involved in 51% of cases and the bladder, urethra, penis and scrotum, including its content, in ca. 10% each. Of the renal traumas, 49% were ruptures; 48% contusions; and 7% hilar lesions,a nd in 6% the complete destruction of the organ occurred. In all, 76% of these traumas were treated conservatively, whereas 8% each required reconstruction or nephrectomy. Amongst the urethral ruptures, 46% were complete; 39% partial posterior; and 11% ruptures of the penile urethra. In 43% of cases the treatment was conservative and in 41% a primary reconstruction was carried out. All intraperitoneal (43%) and 2/3 of the extraperitoneal bladder ruptures (57%) were operated on. Gross hematuria was found in 73% of the renal, 83% of the vesical and 73% of the urethral injuries. Microhematuria occurred in 24%, 9% and 13% of cases, whereas no hematuria was found in 3%, 5% and 13% of the kidney, bladder and urethral injuries, respectively. The injury-relevant sensitivity of the imaging methods was computed to be 95% for cystograms, 91% for urethrograms and 83% for angiograms. When used to screen trauma patients, the sensitivity proved to be 69% for the CT scan, 55% for the intravenous pyelogram (IVP) and 54% for sonography. Overall, 37% of 161 complications involved the UG tract, followed by neurological complications, those due to the operation or treatment, to infections or to organ failure. In all, 11% of patients remained in the hospital for only 1 day; 50% for up to 13 days; 20% for 14–60 days; and 17% for 〉60 days.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 14 (1986), S. 9-14 
    ISSN: 1434-0879
    Keywords: Intracavity sonography ; Experimental investigations I ; Variation of the media ; PVC hollow receptacles ; Isolated porcine urinary bladder ; Sound conduction alterations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Multiple artifacts may occur in the diagnostic application of sonography. Occasionally, these may make it difficult to differentiate real tissue structures. In order to investigate the imaging properties of ultrasound in intracavity investigation techniques, we have examined the imaging under different conditions in rigid hollow receptacles as well as in an isolated porcine urinary bladder. A measurable difference of sound conduction depended on the characteristics of the fluid (sound conductor): furthermore, accumulation of air in the hollow space lead to various interfering echos. The importance of a central position of a sound source for obtaining useful sonograms in intracavity ultrasonographic diagnosis was evident.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 14 (1986), S. 15-19 
    ISSN: 1434-0879
    Keywords: Experimental investigations II ; Alteration of the wall characteristics ; Isolated pig bladders ; Depth of ultrasound penetration ; Sonographic shadows
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Because the determination of the depth of urinary bladder tumors by means of intracavity sonography depends on several factors (tumor size, reflection behavior of the tumor etc.), we checked the imaging of this diagnostic technique in the isolated porcine urinary bladder under various experimental conditions. Different tissues of defined size were fixed on the inner or outer surface of the bladder wall; both the bladder mucosa and the foreign tissue were damaged thermally or by incision. The importance of a limited depth of sound penetration or of a sound shadow depending on the characteristics of the tissue under investigation was revealed; tissue types could not be distinguished unequivocally by the reflection pattern; above all, a sonographic diagnosis of the tumor was not possible in the presence of histo-pathologically detectable tissue changes due to thermal damage.
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  • 8
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract CaY цеолиты, содержащие Ni2+, Cr3+ и Pb2+- ионы, включая и их смешанные формы CrNiCaY и PbNiCaY, били испытаны в реакции превращения метанола. Селективность реакции по отнощению образования олефинов и парафинов зависит от типа исследуе-мого образца, активации катализатора и условий реакции.
    Notes: Abstract Ni2+, Cr3+ and Pb2+ exchanged CaY zeolites including mixed forms like CrNiCaY and PbNiCaY were used to study methanol conversion. The selectivity of the reaction to olefin and paraffin formation depends on the type of samples, the activation of the catalyst and the reaction conditions.
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  • 9
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The experimental bifurcation diagrams of the heterogeneous catalytic oxidation of methanol on Pd have been determined by changing the concentration of methanol or oxygen in the feed. Hopf bifurcations have been obtained.
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  • 10
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Превращение метанола в утлеводороды на фаучэитах с загрузками никеля бчло замедлено на несколвко часов во времени ра потоке. Индукционный период обвяснялся подавлением автокаталитическй ступени реакции. Предлагается звтокаталитический механизм, основанный нс β-расзеплении разветвленных промежуточных ионов карбения.
    Notes: Abstract The conversion of methanol to hydrocarbons on nickel loaded faujasites can be retarded for many hours time-on-stream. The induction period is interpreted to be due to a suppression of the autocatalytic step of the reaction. An autocatalytic mechanism is proposed based on the β-scission of branched carbenium ion intermediates.
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