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  • Title: Strongyloidiasis: a diagnosis more common than we think.
    Author: Koczka CP, Hindy P, Goodman A, Gress F.
    Journal: Eur J Gastroenterol Hepatol; 2012 Jul; 24(7):860-2. PubMed ID: 22555259.
    Abstract:
    Strongyloides stercoralis is endemic to many tropical regions; however, there is limited knowledge concerning the clinical implication of this helminth, particularly in urban medical centers. We report a case series of strongyloidiasis in our urban medical center in New York City. Patients over the age of 18 years who were examined in our institution from January 1998 to May 2011 were identified by electronic medical record search using International Classification of Diseases, 9th Revision codes. We identified 22 cases of S. stercoralis. Eleven patients were men and 11 were women, with the average age at diagnosis being 62.4 years. Fourteen patients emigrated from the Caribbean, one from Nepal, five were blacks born in the USA, and two did not have their birthplace documented. The main presenting complaints were diarrhea (9/22), abdominal pain (6/22), vomiting (7/22), and weight loss (8/22). Seventeen patients demonstrated eosinophilia. Four patients were positive for human T-lymphotropic virus-1 antibodies, and three patients were infected with HIV. Diagnosis was made with stool examination (19/22), bronchoalveolar lavage (1/22), gastric biopsy (1/22), and duodenal biopsy (3/22). Among six patients who had upper endoscopy performed, the findings commonly included gastritis and gastric and duodenal ulcers. After treatment, 12/22 showed resolution of symptoms. Although a diagnostic approach tends to start with stool collections, consideration of upper endoscopy with biopsy in symptomatic patients is advisable. The absence of eosinophilia should not deter the clinician from seeking a diagnosis. Although often not done, ascertaining HIV and human T-lymphotropic virus-1 status should be part of the work-up.
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