Detection of Giardia intestinalis in duodenal aspirate and in the stool

Compared was the detection of Giardia intestinalis in duodenal contents and in the stool. During endoscopic examination duodenal contents were recovered by means of a tube attached to the mucosa and by aspiration from the region of pars verticalis. In 102 persons, duodenal and stool examinations revealed four and five cases of Giardia infection, respectively. The results showed that both diagnostic methods are equivalent and demonstrated that parasitologic examinations of patients suffering from dyspeptic disorders are very useful.