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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 7 (1992), S. 149-151 
    ISSN: 1437-9813
    Keywords: Midgut non-rotation ; Right paraduodenal hernia ; Abscessed hernia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 3-year-old boy with a history of recurrent episodes of abdominal pain and vomiting, a prior history of intra-abdominal sepsis (amoebiasis), and marked retroperitoneal mesenteric lymphadenopathy on ultrasound was admitted to the hospital because of severe abdominal pain of 2 days' duration associated with fever, nausea, and vomiting. His abdomen was distended and tender and a plain X-ray film revealed a large, dumb-bell-shaped double bubble in the mid-upper abdomen. A barium enema showed non-rotation of the colon with the cecum in the left upper quadrant. At operation, a large, dumbbell-shaped right paraduodenal hernia filled with air and pus was found, but no intestine. The body of the duodenum crossed the hernia and gave it its dumb-bell shape. The hernia/abscess was opened and drained. Penrose drains were left in the abscessed area and the margin of the hernia sac that contained the superior mesenteric artery was closed around the drains with care. The postoperative course was uneventful with no recurrence of symptoms.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of biomedical engineering 18 (1990), S. 263-283 
    ISSN: 1573-9686
    Keywords: Model simulation ; Cardiovascular ; Cardiac assist ; Intra-aortic balloon ; Energy balance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract A model of the cardiovascular system is presented. The model includes representations of the left and right ventricles, a nonlinear multielement model of the aorta and its main branches, and lumped models of the systemic veins and the pulmonary circulation. A simulation of the intra-aortic balloon pump and representations of physiological compensatory mechanisms are also incorporated in the model. Parameters of the left ventricular model were set to simulate either the normal or failing canine circulation. Pressure and flow waveforms throughout the circulation as well as ventricular pressure and volume were calculated for the normal, failing, and assisted failing circulation. Cardiac oxygen supply and consumption were calculated from the model. They were used as direct indices of cardiac energy supply and utilization to assess the effects of cardiac assistance.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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