NONINVASIVE BREATH TESTS FOR DIAGNOSIS OF SIBO AND LACTOSE INTOLERANCE IN PATIENTS ON CHEMOTHERAPY TREATMENT FOR COLORECTAL AND GASTRIC CÂNCER.

Diarrhea was a frequent symptom in chemotherapy patients with gastric or colorectal cancer independent of the presence of SIBO or lactose intolerance. Surgery and chemotherapy treatment impacted in the intestinal habit of patients. Diagnosis of other causes of diarrhea may contribute to a better tolerance to treatment and quality of life.