title: Cryptosporidiosis in patients with diarrhea and chronic liver diseases.
abstract: BACKGROUND
  The aim of this study was to evaluate the epidemiology and clinical significance of Cryptosporidium in patients with diarrhea and chronic liver diseases.
  
  
  METHODS
  The study included 150 patients with chronic liver diseases and diarrhea, and 50 subjects with diarrhea as a control group. Stool samples were screened for the presence of Cryptosporidium by microscopic examination after modified Ziehl-Neelsen staining and detection of Cryptosporidium coproantigen by enzyme-linked immunosorbent assay (ELISA).
  
  
  RESULTS
  The prevalence of Cryptosporidium infection in patients with chronic liver diseases was 30% (45/150) versus 14% (7/50) in controls. Cryptosporidium infection increased with the progression of chronic liver diseases from Child-Pugh class A to Child-Pugh class C (p<  0.001) and from model for end-stage liver disease (MELD) score ≤ 9 to MELD score > 9 (p< 0.031). Nine patients in Child-Pugh class C with diarrhea associated with Cryptosporidium infection developed hepatic encephalopathy, and only diarrhea was identified as a precipitating factor for hepatic encephalopathy.
  
  
  CONCLUSIONS
  Cryptosporidium is one of the important causes of diarrhea in patients with chronic liver diseases. The infection significantly increased with the progression of chronic liver diseases. In patients with advanced chronic liver diseases, Cryptosporidium infection may be a precipitating factor of hepatic encephalopathy.
authors.affiliation: Faculty of Medicine, Mansoura University, Mansoura, Egypt. mousa_medic@yahoo.com.
authors.forename: Nasser
authors.initials: N
authors.lastname: Mousa
authors.forename: Ahmed
authors.initials: A
authors.lastname: Abdel-Razik
authors.forename: Hala
authors.initials: H
authors.lastname: El-Nahas
authors.forename: Atef
authors.initials: A
authors.lastname: El-Shazly
authors.forename: Mohammad
authors.initials: M
authors.lastname: Abdelaziz
authors.forename: Marwa
authors.initials: M
authors.lastname: Nabih
authors.forename: Magdy
authors.initials: M
authors.lastname: Hamed
authors.forename: Mohammad
authors.initials: M
authors.lastname: Eissa
authors.forename: Narmin
authors.initials: N
authors.lastname: Effat
authors.forename: Walled
authors.initials: W
authors.lastname: Eldars
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003457:Cryptosporidiosis / Q000453:epidemiology* / Q000469:parasitology / Q000473:pathology*; D003458:Cryptosporidium / Q000302:isolation & purification*; D003967:Diarrhea / Q000453:epidemiology* / Q000209:etiology* / Q000469:parasitology; D004797:Enzyme-Linked Immunosorbent Assay; D005243:Feces / Q000469:parasitology; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000453:epidemiology* / Q000209:etiology* / Q000469:parasitology; D008297:Male; D008853:Microscopy; D008875:Middle Aged; D015995:Prevalence