[Irritable bowel syndrome]

Area of Science:

• Pediatric Gastroenterology
• Clinical Medicine
• Pathophysiology

Background:

• Irritable bowel syndrome (IBS) in children, also known as chronic nonspecific diarrhea, is a frequent reason for pediatric gastroenterology consultations.
• This condition is benign and self-limiting, typically resolving with age, but can cause significant parental anxiety.

Purpose of the Study:

• To review the pathophysiology of childhood IBS to better explain its clinical manifestations and treatment.
• To clarify the diagnostic criteria and management strategies for this frequently encountered pediatric syndrome.

Main Methods:

• A literature search was conducted using Medline, recent review articles, and personal files.
• The review focused on understanding the underlying pathophysiology to correlate with clinical presentation and treatment efficacy.

Main Results:

• Childhood IBS is characterized by unclear pathophysiology and lack of laboratory confirmation, leading to frequent misdiagnoses.
• Despite diagnostic challenges, the condition presents with specific clinical manifestations when there is no dietary or medicinal manipulation.
• Dietary advice, guided by pathophysiological insights, is often effective, while the role of drug therapy remains debated.

Conclusions:

• Irritable bowel syndrome should be considered in children aged 6 months to 5 years presenting with oligosymptomatic diarrhea and no signs of malnutrition.
• Pharmacological interventions are typically not required, and their efficacy is uncertain.
• Management primarily involves dietary modifications based on an understanding of the condition's pathophysiology.