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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Pediatric surgery international 13 (1998), S. 79-83 
    ISSN: 1437-9813
    Schlagwort(e): Key words Esophageal atresia ; Esophageal replacement ; Colonic interposition ?tul
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Between 1974 and 1994, 25 colonic interposition procedures were performed for esophageal replacement in 23 cases of esophageal atresia (EA) and 2 corrosive strictures. Nine patients had one-stage and 16 had two-stage reconstructions. The transthoracic route was used in 16 cases (64%) and the retrosternal route in 9 (36%). Average age at the time of operation in EA patients was 17 months (range 12–33), and the children with corrosive injuries were 3 and 6 years old. Mean age at follow-up was 11.8 years (2.3–20.5 years). There was no mortality in the series. One patient developed full-graft necrosis and had a gastric pull-up procedure later. One child had partial graft necrosis (3 cm at the cervical end), however, enough colon was available for reconstruction. Ten patients developed a leak from the cervical anastomosis (40%) and 7 developed a stricture at the cervical esophago-colonic anastomosis (28%). The strictures were treated by repeated esophageal dilatation, and 3 patients required revision of the anastomosis (12%). Other complications included acid reflux in 2 cases (8%), small-intestinal obstruction in 1 (4%), redundancy of the colon in 1 (4%), and chest infections in 2 (8%). Follow-up included assessment of the patient's symptoms, serial growth measurements (height and weight), and where relevant, endoscopy and a contrast swallow or meal. There was a 52% improvement in weight and height percentiles post-operatively. Each of the 19 patients who had barium swallows showed rapid transit and emptying without any significant delay or hold-up. Overall long-term results were excellent in 13 patients (52%), good in 7 (28%), and fair in 5 (20%). The colon conduit thus provides an excellent substitute esophagus in pediatric patients.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 14 (1992), S. 167-173 
    ISSN: 0271-2091
    Schlagwort(e): Finite element ; Interlayer slip ; Stress distribution ; Pressure drop ; Engineering ; Engineering General
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Maschinenbau
    Notizen: The observed phenomenon of slip between the layers of a flowing slurry is modelled mathematically by a finite-element-based numerical technique. This technique enables us to quantify variables such as the slip velocity and shear stress distribution at the interlayer boundary and the pressure drop within the flow domain.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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