• Jaime Chen, Robert K Lin, and Tarek Hassanein.
• Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California, San Diego, CA 92161, USA.
• J. Clin. Gastroenterol. 2005 Oct 1; 39 (9): 831-3.

AbstractChylous ascites is uncommon and occurs in about 1 in 20,000 hospital admissions. Causes include disruption of the lymphatic system due to malignancy, cirrhosis, surgery, or radiation therapy. The mainstay of therapy has been low-fat diet supplemented with medium-chain triglyceride oil. However, dietary compliance can be difficult to achieve for adequate response. We report a 47-year-old man with hepatitis C and alcohol-related cirrhosis with new-onset chylous ascites and chylothorax. His ascites triglyceride was 585 mg/dL, and the pleural fluid triglyceride was 691 mg/dL. Ascitic and pleural fluid cytology and acid-fast bacilli stain were negative. The patient was treated with low-fat diet and medium-chain triglyceride oil. However, his ascites remained chylous after 1 week of treatment because of poor compliance with the dietary restrictions. Orlistat was then added to his treatment regimen. A half week later, the chylous component of his ascites resolved. Remaining high-volume clear ascites was treated with placement of a transjugular intrahepatic portosystemic shunt. To our knowledge, orlistat has never been used in the treatment of chylous ascites. This case suggests the potential value of adding orlistat to low-fat diet and medium-chain triglyceride oil in the treatment of chylous ascites, especially in patients who are unable to comply with the dietary restrictions.

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