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  • Articles: DFG German National Licenses  (2)
  • Acute cholecystitis  (1)
  • Hypothesis test  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Laparoscopic cholecystectomy for acute cholecystitis (1993)
    Springer
    Surgical endoscopy and other interventional techniques 7 (1993), S. 296-299 
    Details
    ISSN: 1432-2218
    Keywords: Laparoscopic cholecystectomy ; Acute cholecystitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Because laparoscopic cholecystectomy reduces hospitalization time and postoperative disability, it is being offered to an increasing number of patients with symptomatic gallstones. Nevertheless, acute cholecystitis is still considered by many surgeons to be a relative contraindication. Our standard approach has been to perform laparoscopy on all patients considered candidates for cholecystectomy. From June 1990 to October 1991, the authors personally performed laparoscopic cholecystectomy on 110 patients, 29 (26%) of whom had pathologically confirmed acute cholecystitis. Of these, nine had evidence of gangrene, perforation, or abscess formation. It was necessary to convert to open cholecystectomy in four (14%) patients. In each, inflammation or dense adhesions precluded the performance of a safe operation. The hepatorenal space was drained in 12 (41%) and cystic dust cholangiograms were performed selectively. The mean operating time was 108 min. There were no intraoperative complications. One patient developed a prolonged postoperative paralytic ileus and two patients were noted to have postoperative common duct stones. There were no deaths. The average postoperative stay for laparoscopic cholecystectomy was 2.6 days. We conclude that the advantages of laparoscopic cholecystectomy can be safely and effectively extended to the majority of patients with acute cholecystitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00725943
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A new paradigm for hypothesis testing in medicine, with examination of the Neyman Pearson condition (1986)
    Springer
    Theoretical medicine and bioethics 7 (1986), S. 269-282 
    Details
    ISSN: 1573-1200
    Keywords: Computer simulation ; Hypothesis test ; Neyman Pearson lemma ; Token swap test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Philosophy
    Notes: Abstract In the past, hypothesis testing in medicine has employed the paradigm of the repeatable experiment. In statistical hypothesis testing, an unbiased sample is drawn from a larger source population, and a calculated statistic is compared to a preassigned critical region, on the assumption that the comparison could be repeated an indefinite number of times. However, repeated experiments often cannot be performed on human beings, due to ethical or economic constraints. We describe a new paradigm for hypothesis testing which uses only rearrangements of data present within the observed data set. The token swap test, based on this new paradigm, is applied to three data sets from cardiovascular pathology, and computational experiments suggest that the token swap test satisfies the Neyman Pearson condition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00539848
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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