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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
1981-7-23
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pubmed:abstractText |
From January 1974 through July 1979, 1,588 patients underwent diagnostic peritoneal lavage. The test had an accuracy of 98.6%, sensitivity of 94.3%, and specificity of 99.8%. It was true positive in 21.9%, false positive in 0.1%, false negative in 1.3%, and true negative in 76.6%. Fifty-nine patients from the true-positive group had grossly equivocal tests, but had positive lavage results based on quantitative cell count. Thus without cell count the test would have a sensitivity of 78.3%, accuracy of 94.8%, and specificity of 99.8. Eight patients had positive lavage based on WBC count but negative RBC count; all of these patients had bowel injuries. Measurement of lavage fluid amylase resulted in minimal or no improvement in the accuracy (0.06%), sensitivity (0.3%), or specificity (0.0%). Five of six patients with positive amylase levels but grossly negative tests had concomitant positive WBC count. The added cost of the amylase measurement is estimated to be $154,472. Peritoneal lavage has high accuracy, sensitivity, and specificity. Cell counts significantly improve sensitivity. Patients with a grossly equivocal test but with a positive cell count should undergo laparotomy. The lavage-fluid amylase measurement is costly and is of insignificantly yield.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0022-5282
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
21
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
345-8
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:6164796-Abdominal Injuries,
pubmed-meshheading:6164796-Amylases,
pubmed-meshheading:6164796-Ascitic Fluid,
pubmed-meshheading:6164796-Clinical Enzyme Tests,
pubmed-meshheading:6164796-Erythrocyte Count,
pubmed-meshheading:6164796-Humans,
pubmed-meshheading:6164796-Leukocyte Count,
pubmed-meshheading:6164796-Therapeutic Irrigation,
pubmed-meshheading:6164796-Wounds, Nonpenetrating
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pubmed:year |
1981
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pubmed:articleTitle |
Value of quantitative cell count and amylase activity of peritoneal lavage fluid.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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