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  • 1
    Electronic Resource
    Electronic Resource
    Electromyographic study of the mechanism of postoperative cholangitis in congenital biliary atresia (1990)
    Springer
    Pediatric surgery international 5 (1990), S. 433-436 
    Details
    ISSN: 1437-9813
    Keywords: Congenital biliary atresia ; Roux-en-Y biliary reconstruction ; Ascending cholangitis ; Intestinal motility ; Electromyographic analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cholangitis after biliary reconstruction for congenital biliary atresia is a troublesome postoperative complication. In order to clarify its mechanism and the changes in intestinal movement after biliary reconstruction by Roux-en-Y anastomosis, we performed electromyographic (EMG) studies of the motility of the reconstructed intestine in dogs. Monitoring the basic electrical rhythm (BER) and migrating myoelectric complexes (MMC), EMG analysis was carried out. As most of the Y-loop MMCs were propagated smoothly to the anal side, according to the continuity of the intestine, the intestinal contents were transported without stagnation. These intestinal movements appear to be useful as a biliary drainage route and to prevent ascending cholangitis. A comparison of short- and long-term intestinal motility after biliary reconstruction showed adaptation of the intestinal movement following the procedure. The outflow of bile appeared to accelerate intestinal motility because of prolongation of the MMC interval in the duodenum and oral jejunum without bile flow.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00174343
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electrogastrography after operative repair of esophageal atresia (1997)
    Springer
    Pediatric surgery international 12 (1997), S. 340-343 
    Details
    ISSN: 1437-9813
    Keywords: Key words Esophageal atresia ; Electrogastrography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Esophageal atresia (EA) is a life-threatening disorder associated with operative complications. Postoperative gastric electrical control activity detected by a non-invasive electrogastrography (EGG) technique was investigated in 13 children aged 1–17 years to clarify whether gastric motility disorders were present. EGG abnormalities were present in 5 patients; persistent dysrhythmias were found in 3. Roentgenographic examinations showed mild gastroesophageal reflux in 3 (60%) of the dysrhythmic patients; 2 others had postprandial dysrhythmias. The mean spectral frequency (MSF) of EA cases with dysrhythmia was significantly higher than that of patients without dysrhythmia in both fasting and postprandial states (P 〈 0.05). The variability of the peak spectral frequencies (PSFV) in patients with dysrhythmia was significantly higher than in those without dysrhythmia in both fasting and postprandial states (P 〈 0.05). There were no significant differences in MSF and PSFV between EA patients without dysrhythmia and controls. These results suggest that gastric motor activity may be disordered in patients following operative repair of EA, although they remain asymptomatic. EGG may be a useful screening examination for postoperative gastric functional disorders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003830050146
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A method for determining reference points in celloidin specimens for computer graphic reconstruction (1989)
    Springer
    European archives of oto-rhino-laryngology and head & neck 246 (1989), S. 97-99 
    Details
    ISSN: 1434-4726
    Keywords: Reference points ; Three-dimensional reconstruction ; Celloidin-embedded specimens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary For three-dimensional computer graphic reconstruction of histological sections, it is important to determine reference points. We have developed a machine that makes reference points in a celloidin block for this purpose by drilling holes straight into the block. A sliding microtome is placed under the machine, which consists of a worktable, a stand, and a motor-driven unit. The celloidin block is sectioned on a microtome to determine a plane for serial sectioning. Several holes are then drilled in the block vertical to the plane selected. Serially sectioned specimens are next stained with hematoxylin and eosin and are mounted in the usual manner. Threedimensional reconstructions of the specimens were next done using a PC-9801 computer and CosmoZone-S software. As an example, the reconstruction of a guinea pig stapes is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00457462
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    Paper (German National Licenses)
    Fulltext
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