[Small intestine flora in chagasic patients with megaesophagus and/or megacolon: study using the H2 breath test].

The author use the H2 breath test to study the small bowel microflora of chagasic patients with megaesophagus and/or megacolon. Compare this group with a control one. Find a significant increase (P < 0.05) in the small bowel flora of chagasic group. It is concluded that H2 breath is a simple and useful test to detect alteration in intestinal flora.