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KMID : 0363819930270010088
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Korean Journal of Nuclear Medicine
1993 Volume.27 No. 1 p.88 ~ p.97
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Diagnosis of Protein Losing Enteropathy in Connective Tissue Diseases with 99mTc-human Serum Albumin (HSA)
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원경숙
오영석/방신호/박원
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Abstract
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Anterior abdominal scintigraphy after intravenous injection of 99mTc-human serum albumin (99mTc-HAS 20 mCi) was done in 16 patients with connective tissue diseases and 15 healthy control patients. Patients with proteinuria or hepatopathy were
excluded.
1) 7 (44%) patients among 16 connective tissue disease patients without the apparent evidence of external protein loss showed abnormal intestinal accumulation of albumin. 6 patients with positive albumin scintigraphy showed hypoalbuminemia.
2) There was no false positive scintigraphic finding in control group.
3) The serum albumin level in connective tissue disease patients (3.1±0.6g/dl, n=16) was lower than control patients (3.9±0.3g/dl, n=15) (p<0.0001).
4) The serum albumin level was lower in connective tissue disease patients with positive 99mTc-HAS scan (2.8±0.6g/dl, n=7) than the connective tissue disease patients with negative scan (3.3±0.3g/dl, n=9) (p<0.05).
5) The hemoglobin level in connective tissue disease patients with positive scan (10.6±2.91g/dl) was lower than that of the control group (13.6±1.5g/dl) (p<0.05).
Hypoalbuminemia is frequently involved in chronic connective tissue diseases. Protein losing enteropathy (PLE) is also responsible for the majority of the hypoalbuminemia in these patients. But it has been ignored because the conventional method
for the
diagnosis of PLE was difficult to perform.
99Tc-HAS scan also must be validated by more extended study and comparison with the quantitative study such as stool α-1 antitrypsin measurement. There must be a reevaluation of PLE in various diseases especially in connective tissue diseases
with
easy, fast, economical, and non-invasive method.
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