Patients with chronic liver diseases (CLD) are often highly susceptible to parasitic infection due to a depressed immune system. The objective of this study was to detect the most commonly intestinal parasites found among Egyptian children with CLD. The present study was conducted on 50 children with CLD of different etiology (25 were having different intestinal symptoms, 25 without intestinal symptoms) and 50 non-CLD children with gastrointestinal complaints served as controls. All cases were subjected to stool examination and investigated by liver function tests. Also, anthropometric measurements were taken for all children including weight and height. It was found that the most commonly intestinal protozoa identified in the patients with CLD in order of frequency were: Entamoeba histolytica/Entamoeba dispar (16 %), Giardia lamblia (14 %), Blastocystis hominis (14 %), Cryptosporidium parvum (10 %), E. histolytica and G. lamblia (2 %), E. histolytica and B. hominis (2 %), G. lamblia and B. hominis (2 %), B. hominis and Entamoeba coli (2 %), Microsporidium (2 %) and no cases were found infected with Strongyloides stercoralis. As compared to the controls, the observed incidence of these organisms in CLD patients was significantly higher (p \ 0.045) as regards stool examination by unstained techniques while, there was no significant difference between both groups as regards stool examination by stained techniques (p \ 0.478). In addition, this study showed that the weight and height of studied patients were affected by parasitic infection while, there was no significant correlation between parasitic infection and liver function tests. In conclusion, chronic liver diseases affect the immunity of the patients as shown in significant increase in the incidence of intestinal parasites in cases compared to controls.

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