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Query: UMLS:C0022104 (irritable bowel syndrome)
 8,033 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Constipation is a multifactorial disorder that can cause significant psychological distress to patients and economic burden on the health care system. Many patients are not satisfied with their current established treatment, highlighting the need for new and improved therapeutic options. Guanylate cyclase-C (GC-C)/cyclic guanosine monophosphate agonists have emerged as a safe and efficacious class of drugs for the treatment of chronic idiopathic constipation (CIC). Plecanatide, a second-in-class, US FDA-approved, synthetic GC-C agonist, has recently been approved in the US for the treatment of irritable bowel syndrome with constipation at doses of 3 and 6 mg and CIC at the 3 mg dosage. In this study, we summarize the design of this novel 16-amino acid uroguanylin analog, drug development through Phase I, II, and III clinical studies, and its role in the treatment of CIC.
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PMID:Profile of plecanatide in the treatment of chronic idiopathic constipation: design, development, and place in therapy. 3077 7

Gas, bloating, and belching are associated with a variety of conditions but are most commonly caused by functional gastrointestinal disorders. These disorders are characterized by disordered motility and visceral hypersensitivity that are often worsened by psychological distress. An organized approach to the evaluation of symptoms fosters trusting therapeutic relationships. Patients can be reliably diagnosed without exhaustive testing and can be classified as having gastric bloating, small bowel bloating, bloating with constipation, or belching disorders. Functional dyspepsia, irritable bowel syndrome, and chronic idiopathic constipation are the most common causes of these disorders. For presumed functional dyspepsia, noninvasive testing for Helicobacter pylori and eradication of confirmed infection (i.e., test and treat) are more cost-effective than endoscopy. Patients with symptoms of irritable bowel syndrome should be tested for celiac disease. Patients with chronic constipation should have a rectal examination to evaluate for dyssynergic defecation. Empiric therapy is a reasonable initial approach to functional gastrointestinal disorders, including acid suppression with proton pump inhibitors for functional dyspepsia, antispasmodics for irritable bowel syndrome, and osmotic laxatives and increased fiber for chronic idiopathic constipation. Nonceliac sensitivities to gluten and other food components are increasingly recognized, but highly restrictive exclusion diets have insufficient evidence to support their routine use except in confirmed celiac disease.
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PMID:Gas, Bloating, and Belching: Approach to Evaluation and Management. 3081 Nov 60

Irritable Bowel Syndrome (IBS), characterized by abdominal pain and bowel dysfunction, treatment focuses on alleviating symptoms. Adherence is crucial for pharmacologic management success. We examined 73 adult's objective adherence to rifaximin using the taxonomy for adherence. Demographic, quality of life (QOL), psychological distress, perceived stress, adverse childhood experiences (ACE), pain, and adherence data were collected. Impaired QOL, elevated psychological distress and perceived stress, and a significant number of ACE were reported at baseline. Average time to prescription initiation was 2.5 days. Once implemented, 92% missed midday dose and persisted 5 days beyond the prescribed dose. High-adherers reported lower pain levels post-rifaximin compared to low-adherers. Objective adherence was significantly lower than self-reported. Objective adherence was not predicted by above variables. Adherence to rifaximin is poor in those with IBS. Future research examining perceived barriers/facilitators toward rifaximin adherence may provide insight into patient-centered, modifiable targets for adherence interventions and improve patient-related outcomes.
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PMID:Adherence to Short-course Pharmacotherapy in Adults with Irritable Bowel Syndrome. 3144 9

Women with irritable bowel syndrome often report fatigue, along with abdominal pain and psychological distress (i.e., depression and anxiety). There is little information about the relationships among these symptoms. Using a secondary data analysis (N = 356), we examined the relationship between abdominal pain and fatigue and whether psychological distress mediates the effect of abdominal pain on fatigue in both across women and within woman with irritable bowel syndrome. Data gathered through a 28-day diary were analyzed with linear regressions. The across-women and within-woman relationships among same-day abdominal pain, fatigue, and psychological distress were examined. Within-woman relationships were also examined for directionality among symptoms (i.e., prior-day abdominal pain predicts next-day fatigue and prior-day fatigue predicts next-day abdominal pain). In across-women and within-woman analyses on the same day, abdominal pain and fatigue were positively correlated. In within-woman analyses, abdominal pain predicted next-day fatigue, but fatigue did not predict next-day pain. In across-women and within-woman analyses, psychological distress partially mediated the effects of abdominal pain on fatigue. Symptom management incorporating strategies to decrease both abdominal pain and psychological distress are likely to reduce fatigue. Nursing interventions, such as self-management skills to reduce abdominal pain and psychological distress, may have the added benefit of reducing fatigue in irritable bowel syndrome.
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PMID:Relationships Between Abdominal Pain and Fatigue With Psychological Distress as a Mediator in Women With Irritable Bowel Syndrome. 3191 59

This Review highlights the stigma associated with irritable bowel syndrome and its impact on patient care and clinical outcomes. Stigma around irritable bowel syndrome is prevalent among the general public, health-care professionals, and co-workers, and is often related to poor understanding of the condition. Furthermore, stigma is associated with unsatisfactory outcomes for people with irritable bowel syndrome, including increased health-care use, psychological distress, and impaired quality of life. Comparative studies suggest that stigma is much higher for irritable bowel syndrome than it is for inflammatory bowel disease, a so-called organic gastrointestinal disorder with overlapping symptomatology. In this Review, we discuss the lack of interest in irritable bowel syndrome among members of the general public and health-care professionals, and the need for it to be better understood. These problems should be addressed by appropriate educational strategies to raise awareness and by relevant interventions.
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PMID:Stigma and irritable bowel syndrome: a taboo subject? 3192 68

Irritable bowel syndrome (IBS) is a functional disorder of brain-gut interactions. Differential brain responses to rectal distention between IBS and healthy controls (HCs) have been demonstrated, particularly in the pain matrix and the default mode network. This study aims to compare resting-state functional properties of these networks between IBS patients and HCs using graph analysis in two independent cohorts. We used a weighted graph analysis of the adjacency matrix based on partial correlations between time series in the different regions in each subject to determine subject specific graph measures. These graph measures were normalized by values obtained in equivalent random networks. We did not find any significant differences between IBS patients and controls in global normalized graph measures, hubs, or modularity structure of the pain matrix and the DMN in any of our two independent cohorts. Furthermore, we did not find consistent associations between these global network measures and IBS symptom severity or GI-specific anxiety but we found a significant difference in the relationship between measures of psychological distress (anxiety and/or depressive symptoms) and normalized characteristic path length. The responses of these networks to visceral stimulation rather than their organisation at rest may be primarily disturbed in IBS.
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PMID:Resting state functional connectivity of the pain matrix and default mode network in irritable bowel syndrome: a graph theoretical analysis. 3262 Sep 38

Recent advances in biological therapies have revolutionalised and redefined treatment targets in inflammatory bowel disease (IBD). There is now a stronger emphasis on achieving the more stringent therapeutic goals of mucosal and histological healing, rather than clinical remission alone. Consequently, the treatment of refractory "functional" gastrointestinal symptoms, often attributed as the aftermath of previous inflammation, has recently become more prominent in quiescent disease. With further expected advances in anti-inflammatory treatments on the horizon, the burden of such symptoms in quiescent disease, which have been relatively neglected, is set to become an even bigger problem. In this article, we highlight the current state of research and understanding in this field, including recent developments and clinical practice guidelines on the diagnosis and management of functional gastrointestinal symptoms, such as irritable bowel syndrome and functional anorectal and pelvic floor disorders, in patients with quiescent IBD. These disorders are not only highly prevalent in these patients, they are often misdiagnosed, and are difficult to treat, with very few evidence-based therapies. Moreover, they are associated with substantial impairment in quality-of-life, considerable morbidity, and psychological distress. There is therefore an urgent need for a change in emphasis towards earlier recognition, positive diagnosis, and targeted treatment for patients with ongoing functional gastrointestinal symptoms in the absence of active IBD. This article also highlights the need for further research to develop much needed evidence-based therapies.
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PMID:Functional gastrointestinal disorders in inflammatory bowel disease: Time for a paradigm shift? 3277 52


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