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  • 2000-2004  (7)
  • 1980-1984  (2)
  • 1970-1974  (1)
  • 1940-1944  (1)
  • 1905-1909  (2)
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Year
  • 1
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A bronchial P cell carcinoid, which was negative for all hormones immunocytochemically tested, showed a globular intracytoplasmic inclusion in almost every cell. The inclusions were not clearly distinguishable using the haematoxylin-eosinsafran procedure; they were best demonstrated with the Masson trichrome stain and the Grimelius technique and were easily detected in 1 μm thick Epon sections as target-like structures. On electron microscopy, they were found to be composed of filamentous aggregates entrapping a few endosecretory granules, which showed degenerative changes. The filaments, 8–10 nm in diameter, lacked any periodicity; they were randomly dispersed in the central area and arranged in broken concentric swirls at the periphery of the inclusions. The globules lacked the tinctorial properties of amyloid, but showed a strong immunostaining for keratin-like proteins. A systematic investigation of 12 APUDomas of bronchial or duodenopancreatic origin, using both light and electron microscopy, identified a few filamentous bodies in one case, a somatostatin cell tumour of ampulla of Vater. In both cases, the structures appeared similar to those previously reported in growth hormone cell pituitary adenomas as well as in a few bronchial or gut carcinoids. Whatever their nature, morphological data suggest that they are related to abnormalities in the secretory function, involving the Golgi apparatus, the endosecretory granules and the microtubular microfilamentous system.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 154 (1944), S. 459-459 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PUBLISHED methods for the extraction and purification of penicillin1,2,3 are all based on the observation that penicillin can be extracted by ether, amyl acetate or chloroform from strongly acid aqueous solutions. Considerable losses of the antibacterial substance occur during ...
    Type of Medium: Electronic Resource
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  • 3
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    Unknown
    Baltimore, Md. : Periodicals Archive Online (PAO)
    Behavioral science. 25:4 (1980:July) 315 
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Power technology and engineering 6 (1972), S. 798-799 
    ISSN: 1570-1468
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 80 (1906), S. 23-36 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 88 (1907), S. 179-222 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Herz-, Thorax- und Gefässchirurgie 14 (2000), S. 2-3 
    ISSN: 0930-9225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0930-9225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A 6-month-old infant was investigated for the first time at the German Heart Institute because of right ventricular insufficiency. The echocardiogram revealed right ventricular dilatation, severe tricuspid valve regurgitation, pulmonary hypertension and abnormal origin of the right pulmonary artery from the ascending aorta. The subsequent catheterization confirmed the diagnosis and the increased pulmonary vascular resistance in the right and left lung. The infant underwent immediate cardiac surgery and re-implantation of the right pulmonary artery in a newly created bifurcation using pericardial patch material. The postoperative course was complicated by persistent pulmonary hypertension, which was successfully treated with inhaled nitric oxide (NO).    The infant was discharged in good cardiorespiratory conditions on the 15th postoperative day.    Conclusion: Right ventricular failure and pulmonary hypertension in infancy can be associated with the rare malformation of abnormal origin of the pulmonary artery from the ascending aorta.
    Notes: Zusammenfassung Wir berichten über ein nunmehr 6 Monate altes Kind, welches im Alter von 2 Monaten durch eine Rechtsherzinsuffizienz unklarer Ursache auffiel. In der transthorakalen Echokardiographie und in der sich unmittelbar anschließenden Herzkatheteruntersuchung wurde eine fehlentspringende rechte Pulmonalarterie (RPA) aus der Aorta ascendens diagnostiziert. Die operative Korrektur erfolgte am Folgetag durch Re-implantation der RPA in den Pulmonalarterienstamm unter Erweiterung der Neo-Bifurkation mit Perikardflicken. Der postoperative Verlauf war komplikationslos.    Schlussfolgerung: Eine unklare RV-Dekompensation geht in einigen seltenen Fällen auf eine abnormal entspringende RPA zurück, die initialen Symptome hängen dabei entscheidend vom Ausmaß der sekundären pulmonalen Hypertension ab.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neuro-oncology 47 (2000), S. 175-179 
    ISSN: 1573-7373
    Keywords: intracranial pseudolymphoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Intracranial pseudolymphoma is a rare tumor of the central nervous system. A 35-year-old woman presented with a frontal subcutaneous tumor. Magnetic resonance imaging revealed a left frontal meningeal tumor involving subcutaneous tissue without bone involvement. The mass was completely removed and the histological aspect of all tumor sections was that of a lymphoid hyperplasia with polyclonal proliferation. These findings were characteristic of pseudolymphoma defined as a hyperplasia of follicular and diffuse lymphoid type with assessment of its polyclonality by immunophenotyping on frozen sections, completed by molecular biology techniques.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1435-1285
    Keywords: Key words Mechanical heart support – children – ventricular assist device – congestive heart failure – dilated cardiomyopathy ; Schlüsselwörter Kunstherz – Kinder – ventikuläres Assist Device – terminales Herzversagen – dilatative Kardiomyopathie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Kinder mit progredienter dilatativer Kardiomyopathie können auf der Warteliste zur Herztransplantation versterben, da bei ihnen das Krankheitsbild besonders rasch mit Kreislauf- und Multiorganversagen fortschreitet und ein passendes kindliches Spenderangebot nicht schnell genug verfügbar ist. Bei 15 Kindern im Alter von vier Monaten bis 15 Jahren führten wir im Stadium des nicht mehr medikamentös therapierbaren Herzversagens und beginnendem Multiorganversagen eine Kreislaufunterstützung mittels Kunstherz (Ventrikuläres Assist Device, „Berlin Heart”) durch. Alle Kinder befanden sich in progredientem Schock und waren mindestens einmal reanimiert worden, bevor wir uns zur Implantation entschlossen. Das Kunstherz besteht aus zwei pneumatisch angetriebenen extrakorporalen Blutpumpen, vier Silikonkanülen zur venösen und arteriellen Verbindung zwischen Patient und Pumpe und einem elektropneumatischen pulsatilen Antrieb. Zwölf der 15 Kinder konnten wir mit dem System während 1 bis 98 Tagen (Mittel: 24 Tage) am Leben erhalten und die Wartezeit bis zur Herztransplantation überbrücken. Neun Kinder waren während der Unterstützungszeit extubiert und mobilisiert. Drei Kinder verstarben vor Erreichen einer Transplantation an Blutung, Sepsis und Lungenversagen, bei einem überlebenden Kind trat ein Infarkt der arteria cerebri media auf. Sieben transplantierte Langzeitüberlebende sind beschwerdefrei und sozial vollintegriert. Durch modifizierte Technik ist das Kunstherz auch im Säuglings- und Kleinkindalter einsetzbar. Dadurch können wir Kinder mit terminaler Herzinsuffizienz bei dilatativer Kardiomyopathie für Wochen und Monate am Leben erhalten und die Zeit bis zur Transplantation überbrücken.
    Notes: Summary In children with dilated cardiomyopathy the disease may progress so rapidly that they die during the waiting period before a suitable donor organ is found. Fifteen children of 4 months to 15 years of age had been in congestive heart failure with multiorgan failure due to dilated cardiomyopathy, where intensive medical treatment had failed. After resuscitation, a miniaturized pulsatile ventricular assist device for the mechanical replacement of heart function was implanted. The biventricular assist device (“Berlin Heart”) consists of two extracorporeal pneumatically driven polyurethane blood pumps, with a multi-layer flexible membrane that separates a blood and an air chamber. Four silicon cannulae connect the blood pumps to the patient. A three-leaflet valve prevents blood reflux. The pumps are driven by a pulsatile electropneumatic system. In 12 of the 15 children the bridging to transplantation was successful with a support time of 1 to 98days (mean 24 days). Nine of them were extubated and mobilized while assisted. Three children died during the support time due to hemorrhage, sepsis, and pulmonary failure. In addition, there was one infarction of the arteria cerebri media. To date seven of the transplanted children are in good condition on follow-up. The beneficial effects of ventricular assist device use are well known in adult patients and with special devices it can be transfered to infants and children in whom longer need for support is anticipated. Even in small infants it is an effective method for bridging to cardiac transplantation.
    Type of Medium: Electronic Resource
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