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Serum immunoreactive elastase in diagnosis of pancreatic diseases

A sensitive marker for pancreatic cancer

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Abstract

Diagnostic significance of serum immunoreactive elastase-1 was studied in 137 patients with pancreatic disease, 335 with various nonpancreatic diseases, and 416 healthy controls by using radioimmunoassay. Frequency of abnormally high serum elastase values exceeding 410 ng/dl was 100% in acute pancreatitis (N=14), 40% in chronic pancreatitis (N=80), and 72% in pancreatic cancer (N=43). In pancreatic cancer the mean value of serum elastase in resectable cancer (N=19) was significantly higher than that in unresectable cancer (N=24). Sensitivity, specificity, and efficiency of serum elastase in pancreatic cancer were 72.1%, 98.3%, and 95.9% against healthy controls; 72.1%, 85.9%, and 83.6% against nonpancreatic digestive diseases; and 72.1%, 60.0%, and 64.2% against chronic pancreatitis at a cutoff level of 410 ng/dl, respectively. High serum elastase could be a diagnostic clue to detect pancreatic duct obstruction due to pancreatic cancer, although further examination should be done by endoscopic retrograde pancreatography and other imaging studies.

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Authors and Affiliations

  1. Second Department of Internal Medicine, Nagoya University School of Medicine, Tsuruma-cho 65, Showa-ku, 466, Nagoya, Japan

    Hirotsugu Hamano MD,  Tetsuo Hayakawa MD & Takaharu Kondo MD

Authors
  1. Hirotsugu Hamano MD
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  2. Tetsuo Hayakawa MD
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  3. Takaharu Kondo MD
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Additional information

This study was supported in part by a research grant for intractable pancreatic disease and a cancer grant 58-21 from Ministry of Health and Welfare, Japan.

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Hamano, H., Hayakawa, T. & Kondo, T. Serum immunoreactive elastase in diagnosis of pancreatic diseases. Digest Dis Sci 32, 50–56 (1987). https://doi.org/10.1007/BF01296687

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  • DOI: https://doi.org/10.1007/BF01296687

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