Irritable bowel syndrome: current concepts and future trends.

Area of Science:

• Gastroenterology
• Internal Medicine
• Psychosomatic Medicine

Background:

• Irritable Bowel Syndrome (IBS) is a common gastrointestinal disorder affecting approximately 5% of the adult population annually.
• Key symptoms include constipation, diarrhea, abdominal pain, distension, rumbling, and flatulence.
• Diagnosis of IBS requires the exclusion of organic diseases.

Purpose of the Study:

• To elucidate the pathogenesis of individual IBS symptoms.
• To outline the current rationale for treating IBS.
• To highlight the multifactorial nature of IBS etiology.

Main Methods:

• Review of known pathogenetic mechanisms for constipation, pain, and meteorism in IBS.
• Identification of contributing factors such as diet, psychological elements, and fluid balance.
• Analysis of current treatment strategies.

Main Results:

• Chronic constipation is linked to low-fiber diets, psychological factors, local anorectal disorders, and diuretic intake.
• Abdominal pain is associated with spasms and motility disturbances leading to increased intraluminal pressure.
• Meteorism is attributed to "air traps" and segmental gas accumulation rather than increased gas volume.

Conclusions:

• The etiology of IBS is complex and likely multifactorial, involving psychopathological factors and potentially food intolerance.
• Current treatment rationales focus on symptom management: addressing constipation, easing spasms, reducing surface tension of intestinal contents, and alleviating mental stress.
• IBS is considered a syndrome rather than a distinct disease entity, making definitive treatment challenging.