SIBO
Pronunciation: SYE-boh
Also written as: SIBO — small intestinal bacterial overgrowth
Condition characterized by excessive bacterial growth in the small intestine leading to malabsorption.
Full Definition
Small intestinal bacterial overgrowth (SIBO) occurs when bacteria that normally reside in the colon proliferate abnormally in the small intestine. This condition disrupts normal digestive processes, leading to malabsorption of nutrients, particularly fats and fat-soluble vitamins. In pediatric patients, SIBO can result from anatomical abnormalities, motility disorders, immunodeficiency, or previous surgical interventions. Symptoms include bloating, diarrhea, steatorrhea, and failure to thrive. Diagnosis is typically made through breath testing or small bowel aspirate culture. Treatment involves antibiotics and addressing underlying predisposing factors.
Usage
Usage note: Spell out on first use in formal documents; acronym is widely recognized in gastroenterology.
In Context
- "Hydrogen breath testing confirmed the diagnosis of SIBO in this patient with chronic diarrhea." — Diagnostic test report
- "SIBO was successfully treated with a course of rifaximin." — Treatment response note