Steatocrit test after a standard fatty meal: a new simple and sensitive test to detect malabsorption
Iacono, G. | Carroccio, A. | Montalto, G. | Cavataio, F. | Balsamo, V. | Notarbartolo, A.
The steatocrit test, a simple semiquantitative method for determining fat content in stool, was performed after a standard fatty meal to detect malabsorption in patients with celiac disease. Thirty-seven children (mean age 2.6 t 2.1 years) with total atrophy of the intestinal villi and 79 controls (mean age 3.5 +/- 2.8 years) were studied. All subjects underwent a small-bowel biopsy, a D-xylose absorption test, a rapid triglyceride absorption test, and a steatocrit determination first on an uncontrolled diet and then again after a standard fatty meal. The steatocrit test after a fatty meal did not detect any false-positive or false-negative results, while the D-xylose test showed two false-negative and four false-positive results, and the rapid triglyceride absorption test found two false-negative and 23 false-positive results. We conclude that the determination of steatocrit after a standard fatty meal is a useful, simple, and noninvasive test to identify patients with total intestinal villous atrophy.
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