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  • 1990-1994  (2)
  • Carbon dioxide laser  (1)
  • Exercise  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Experimental study of laparoscopic selective proximal vagotomy using a carbon dioxide laser (1994)
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 857-861 
    Details
    ISSN: 1432-2218
    Keywords: Selective proximal vagotomy ; Carbon dioxide laser ; Laparoscopic surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This study investigated the effectiveness of laparoscopic selective proximal vagotomy using a CO2 laser. Irradiation of the stomach was performed from the serosal aspect using a defocused CO2 laser beam. In the first experiment, the inhibitory effect on cysteamine ulcers in rats was compared between surgical vagotomy and CO2 laser vagotomy using three different irradiation fields. The results suggested that irradiation near the lesser curvature provided sufficient denervation. In the second experiment, CO2 laser vagotomy was performed laparoscopically in dogs. The procedure lasted less than 1 h and a postoperative endoscopic Congo red test confirmed its effectiveness. Subserosal tissues including the vagus nerve branches showed degeneration and were replaced by fibrosis 3 months postoperatively, but the deeper tissues were spared. In conclusion, laparoscopic CO2 laser vagotomy may be as effective for reducing acid secretion as standard surgical vagotomy. Its simplicity and safety suggest that a clinical trial in humans may be warranted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00843454
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Heart rate and body temperature sensitive diaphragm pacing (1992)
    Springer
    Medical & biological engineering & computing 30 (1992), S. 155-161 
    Details
    ISSN: 1741-0444
    Keywords: Diaphragm pacing ; Exercise ; Physiological pacing ; Rate responsive
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Two ways of rate control for diaphragm pacing are proposed. One is rate control using only the patients' body temperature (method I). The other is rate control by both the patients' heart rate and body temperature (method II). To test the effectiveness of these methods, a diaphragm pacemaker which can be controlled by both heart rate and body temperature has been developed. It was applied to nine mongrel dogs. The pacing rate is controlled by atrial blood temperature (method I) or by both heart rate and temperature (method II). The animal's metabolism was elevated by the administration of a pyrogenic drug. It was found that method I is not suited to rapid changes in metabolism; however, it is useful in extreme metabolic elevation. An animal's metabolism was supported by using method II in all ranges of metabolism. This method proved more effective than method I for rate-responsive diaphragm pacing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446125
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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