Document Detail


Leukocyte alkaline phosphatase and carcinoembryonic antigen in lung cancer patients.
MedLine Citation:
PMID:  8388558     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Leukocyte alkaline phosphatase (LAP) scores in peripheral blood and plasma carcinoembryonic antigen (CEA) levels were determined in 58 lung cancer patients and compared with those of 22 healthy persons, who served as controls. In the control group we found LAP scores of 54 +/- 28 and CEA levels of 4 +/- 3 ng/ml. The 97.7% confidence intervals are: LAP score < 110 and CEA level < 10. In the patients with limited lung cancer we found LAP scores of 152.4 +/- 36.7 and CEA levels of 22.7 +/- 48 ng/ml. The 97.7% confidence intervals are: LAP score > 78.6 and CEA level > 0. In the patients with extensive lung cancer we found LAP scores of 272 +/- 49 and CEA levels of 47.5 +/- 80.4 ng/ml. The 97.7% confidence intervals are: LAP score > 174 and CEA level > 0. The sensitivity of each marker is discussed, here as percent of false-negative results, denoted PFN, and meaning that with a chosen threshold for the marker level, only PFN% of the patients with a given condition (e.g. extensive lung cancer) might have a marker level less than the chosen threshold and could therefore be assumed healthy. The sensitivity of the LAP score is 0.05% PFN for the group of patients with extensive lung cancer, and we conclude that indeed LAP score < 110 indicates a very low probability of having extensive malignancy. The sensitivity of the CEA level is 32% PFN. The sensitivity of the LAP score to limited lung cancer is 12% PFN for the group of patients with that condition compared with 40% of CEA. The specificities of both LAP score and CEA levels, expressed as percent of false-positive results in the control group, are fair (2.3%), provided that the common conditions, other than cancer, that elevate LAP score and/or CEA levels are well known and can be eliminated by the physician. It is concluded that the LAP score is considerably more useful than the CEA level as a marker for extensive lung cancer.
Authors:
N Walach; Y Gur
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Oncology     Volume:  50     ISSN:  0030-2414     ISO Abbreviation:  Oncology     Publication Date:    1993 Jul-Aug
Date Detail:
Created Date:  1993-06-22     Completed Date:  1993-06-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0135054     Medline TA:  Oncology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  279-84     Citation Subset:  IM    
Affiliation:
Department of Oncology, Assaf Harofeh Medical Center, Zerifin, Sackler School of Medicine, Tel Aviv University, Israel.
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MeSH Terms
Descriptor/Qualifier:
Adenocarcinoma / blood
Alkaline Phosphatase / blood*
Carcinoembryonic Antigen / blood*
Carcinoma, Non-Small-Cell Lung / blood
Carcinoma, Small Cell / blood
Carcinoma, Squamous Cell / blood
False Negative Reactions
Female
Humans
Leukocytes / enzymology*
Lung Neoplasms / blood*,  pathology
Male
Neoplasm Metastasis
Tumor Markers, Biological
Chemical
Reg. No./Substance:
0/Carcinoembryonic Antigen; 0/Tumor Markers, Biological; EC 3.1.3.1/Alkaline Phosphatase

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