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Protein-losing enteropathies.
Authors:Polly B Peterson  Michael D Willard
Institution:Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, 4474 TAMU, Texas A&M University, College Station, TX 77843-4474, USA.
Abstract:GI protein loss can result from a heterogeneous group of diseases, including lymphangiectasia, IBD, neoplasia, ulceration, intussusception, and histoplasmosis. PLE should be suspected in any hypoalbuminemic patient with no evidence of exudative protein loss, proteinuria, or HI. A minimum laboratory database for the suspected PLE patient should include a complete blood cell count, a biochemical and electrolyte profile, urinalysis (+/- urine protein:cretinine ratio), and pre- and postprandial bile acid determinations. Fecal alpha 1-PI concentrations may be used to confirm the presence of GI protein loss in cases with concurrent renal or hepatic disease. Because PLE is a syndrome and not a specific disease, the most effective therapy must be directed at the underlying cause. Multiple high-quality endoscopic biopsies are sufficient to diagnose most patients with PLE, although full-thickness biopsies are required in some cases. Patients with PLE are often clinically "fragile," and careful symptomatic therapy must be integrated with dietary and medical management strategies in most cases.
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