Four years Follow-up of Patients with Irritable Bowel Syndrome

There is little data on the long term evolution of patients with irritable bowel syndrome (IBS) and of associated conditions. We therefore studied the evolution of IBS patients in a single tertiary center during a long interval of time.

We carried out a retrospective study based on the survey of patients records. We analyzed the records of symptoms, therapy, associated diseases, as consigned at follow-up visits for an interval of 4 years in average (2008-2011).

A cohort of 114 patients with IBS diagnosed based on Rome III criteria were included (29 men and 85 women), age 19-85 years (mean age: 43.45 years). Urban patients were predominant. The main three symptoms were: abdominal pain, bowel disorders (constipation, diarrhea) and bloating. IBS--constipation (IBS--C) is associated with a favorable course of symptoms (increasing the number of stools, decrease intensity of abdominal pain and bloating) after treatment and IBS--diarrhea (IBS--D) is associated with variable symptoms after treatment (p = 0.031). Using trimebutin or mebeverin in association with other drugs for one month correlates with a favorable evolution of symptoms after treatment and monotherapy is associated with fluctuating symptoms ( p< 0.001). Favorable symptoms are associated with the use of probiotics in combination, but not in monotherapy (p< 0.001). Favorable evolution of symptoms is also associated with the use of anxiolytics in combination. Persistence of symptoms after treatment was correlated with the presence or absence of depression. The absence of depression was correlated with a favorable evolution of symptoms (p = 0.005). IBS-C is associated at limit (marginal significance) with hemorrhoidal disease (p = 0.56). 33 patients (29%)--received monotherapy (trimebutin or mebeverin or probiotics); 81 patients (71%)--received combined therapy: (trimebutin or mebeverin or probiotics) + anxiolytics or proton pump inhibitors (PPI) or nonsteroidal anti-inflammatory (NSAI) or spasmolytics. The most common associated diseases observed in patients with IBS were: depression (27.19%), dyslipidemia (25.43%), hemorrhoidal disease (22.80%) and fibromyalgia (21%).

The highest response rate was obtained with trimebutin or mebeverin + anxiolitics + probiotics. The most frequent disease associated with IBS was depression. Other diseases with a high incidence: dyslipidemia, hemorrhoidal disease and fibromyalgia. Further studies are needed to analyze the link between IBS and some associated diseases.