Irritable bowel syndrome (IBS) is a functional bowel disorder with 6.5% worldwide prevalence that causes gas production, abdominal distension, and abdominal pain or discomfort. This systematic review describes efficacy of the Low-Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols (FODMAP) diet (Low-FODMAP diet or LFD) to alleviate IBS symptoms using the PRISMA guidelines. Nine randomized controlled trials (RCT) and one non-RCT consecutive controlled study published between 2015 to 2019 were identified using PubMed and CENTRAL. Included studies involved adult IBS participants with symptoms of abdominal pain, constipation, and/or diarrhea. A total of 530 participants completed the interventions from the 10 studies included in the final systematic review with participants ranging from mean ages of 40.31±12.83 years. The LFD can be recommended to patients for its use with alleviating abdominal pain severity and quality of life; however, more research is needed to verify the efficacy of the LFD concerning stool frequency and consistency.

京都大学 / 新制・課程博士 / 博士(医学) / 甲第24476号 / 医博第4918号 / 新制||医||1062(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 羽賀 博典, 教授 小濱 和貴, 教授 川口 義弥 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

Background: It has been hypothesized that dysbiosis plays a significant role in the pathogenesis of intestinal failure–associated liver disease (IFALD). Therefore, we aimed to investigate the effect of probiotics on IFALD in patients receiving parenteral support, namely home parenteral nutrition (HPN) and home intravenous fluids (HIVFs). Methods: We retrospectively reviewed charts of patients with intestinal failure who received HPN or HIVF for >2 weeks at our tertiary center between January 2005 and August 2016. We excluded patients <18 years of age, patients with other causes of liver disease, patients who used probiotics for <30 days, patients with <6 months' follow-up, and those who had long-term antibiotic use (>30 days). Bivariable and multivariable logistic regression analyses were used in this study. Results: A total of 282 patients who received parenteral support were included. Eighty-five percent of our sample received PN. A total of 78 (27.7%) patients used probiotics. The prevalence of IFALD in patients who used probiotics was 35.9% vs 54.4% in patients who did not use probiotics, P =.005. In multivariable analysis, only small-bowel length of 10-90 cm and HPN use showed a significant impact on IFALD, odds ratio (OR) = 4.394 (95% confidence interval [CI], 1.635-11.814; P =.003) and OR = 4.502 (95% CI 1.412-14.351; P =.011), respectively. Conclusion: Our study revealed that the prevalence of IFALD was comparable among the probiotic users and nonusers. Only small bowel length of 1090 cm and HPN use showed a significant impact on IFALD.

Despite advancements in the treatment of individuals with Inflammatory Bowel Disease (IBD), many patients will require the need to utilize biological therapies during their disease course. Moreover, some patients with IBD develop disease manifestations outside of the GI (gastrointestinal) tract termed extraintestinal manifestations (EIM). We sought to establish an association between prior EIM exposure and the sequential use of biological therapies in patients with IBD. A retrospective analysis of 555 patients with confirmed IBD and relevant EIM data was performed. EIM exposure was treated as both a dichotomized (ever, never) variable and a categorical (0, 1, 2 or more) variable in our analysis. Crude ratios were established using logistic regression and multinomial regression models. Bivariate analysis was used to test for significant confounding variables and significant confounders were included in the final multivariate regression model. We found female sex (p < 0.001), a disease duration of 13 years or longer (p = 0.001), and an ileocolonic disease location (p = 0.036) to be significantly associated with EIM exposure. We found that a disease duration of 13 years or longer (p = 0.037), diagnosis of Crohn’s Disease (CD) (p < 0.001), corticosteroid use (p < 0.001), and an ileocolonic disease location (p = 0.021) to be significantly associated with use of biologics. Our final adjusted model did not show statistical significance, but did notably indicate that individuals exposed to 2 or more EIM had 1.51 times the odds of progressing to biological therapy (95%CI: 0.67, 3.41; p = 0.32) compared to those patients with no EIM history. As a result, EIM exposure may be an indicator for high-risk IBD patients likely to require biological therapy, especially among particular groups. Our data emphasizes the need for further studies to characterize the association between EIM exposure and specific EIM with the utilization of biologics.

Bakgrund: Inflammatorisk tarmsjukdom är en grupp av autoimmuna sjukdomar som idag är ett globalt folkhälsoproblem och ökar i hela världen. Ulcerös kolit och Crohns sjukdom är de två huvudsakliga typerna. Symtomsbördan är stor och kan begränsa det sociala livet samtidigt som stigmatisering och känslor av skam är förekommande. Syfte: Syftet var att belysa unga vuxnas erfarenheter av att leva med inflammatorisk tarmsjukdom. Metod: Studien var en allmän litteraturstudie som omfattade nio vetenskapliga artiklar som bearbetades i en induktiv ansats. Resultat: De unga vuxnas erfarenheter av att leva med IBD sammanställdes i tre huvudkategorier; ”Erfarenheter av psykosocial påverkan”, ”Erfarenheter av behandlingen för inflammatorisk tarmsjukdom” och ”Erfarenheter av stöttning från vård- och omsorgspersonal”. Konklusion: Unga vuxna med inflammatorisk tarmsjukdom upplevde symtombesvär som gav upphov till känslor av kontrollöshet, skam och begränsningar i vardagen. Erfarenheter av läkemedelsbehandlingarna innehöll upplevelser av otillräcklig effekt, information och efterföljdsamhet. Behandlingen med stomi upplevdes vara symtomlindrande men hade en psykisk påverkan initialt. Informationsgivning och stöttning från hälso- och sjukvården var bristande. Litteraturstudien bidrar till en ökad förståelse för dessa erfarenheter och behov hos de unga vuxna med inflammatorisk tarmsjukdom. / Background: Inflammatory bowel disease is a group of autoimmune diseases and is today a public health problem that is increasing worldwide. The primary types: Ulcerative colitis and Crohn's disease both affect the gastrointestinal tract. The symptoms can limit social life, stigmatization and feelings of shame are also common. Aim: The aim of this study is to describe young adults experiences of living with inflammatory bowel disease. Method: This study was a general literature study which includes nine scientific articles that were processed with an inductive approach. Results: The young adults experiences of living with inflammatory bowel disease were compiled into three categories; “Experiences of psychosocial influence”, “Experiences of the treatment for inflammatory bowel disease” and “Experiences of support from health care professionals”. Conclusion: Young adults with inflammatory bowel disease experienced symptom distress that gave rise to feelings of lack of control, shame and limitations in everyday life. Experiences of the drug treatments included feelings of insufficient effect, information and compliance. Stoma as a non-pharmacological treatment relieved symptoms but had a psychological impact. Experiences from the healthcare system included lack of information and support. This literature study contributes to the increased understanding of needs to young adults with inflammatory bowel disease.

Complete or partial obstruction of the duodenum by the superior mesenteric artery (SMA) is a rare cause of bowel obstruction. SMA syndrome results from the compression of the 3rd part of the duodenum between the superior mesenteric artery and the abdominal aorta. Causes include anatomical variation in the superior mesenteric artery, trauma, burns, surgeries, malignancy, and rapid weight loss. Diagnosis of SMA syndrome in patients may be difficult, as the clinical findings often resemble other forms of small bowel obstructions. This syndrome was first described in the literature by Carl Freiherr von Rokitansky in 1861. Subsequently, David Wilke provided a comprehensive description of the disease in a series of 75 patients. There has been skepticism about the existence of SMA syndrome due to scant literature reports and non-specific symptomatology. However, modern cross-sectional imaging has confirmed the existence of this rare syndrome. Here we present the case of a 50-year-old female with longstanding symptoms of gastrointestinal discomfort, weight loss, nausea, and vomiting. She underwent an exhaustive gastrointestinal workup until a diagnosis of SMA syndrome was made. We elected to proceed with a minimally invasive three-port laparoscopic, trans-mesenteric side-to-side duodenojejunostomy. The patient was discharged on postoperative day one after tolerating a regular diet. On one month follow-up, our patient reported improvement in symptoms with no postprandial pain or nausea and normal bowel movements. In conclusion, we report a case of superior mesenteric artery syndrome in a patient with recurrent abdominal pain and nausea. CT scan has the highest sensitivity for the diagnosis of SMA syndrome, findings suggestive of the diagnosis include an abnormal aortomesenteric angle and distance. While supplemental tube feeds and gastric drainage may resolve the condition without the need for surgery, this often takes many weeks to months to be effective. Minimally invasive surgical bypass is an attractive option because of the rapidity of symptom resolution, lack of need for long-term invasive tubes, short inpatient length of stay, and high success rate.

京都大学 / 新制・課程博士 / 博士(医学) / 甲第24131号 / 医博第4871号 / 新制||医||1059(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 阪上 優, 教授 佐藤 俊哉, 教授 小杉 眞司 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

No description available.

Irritable bowel syndrome (IBS) är en av våra vanligaste funktionella tarmsjukdomar med en prevalens på ca 10% värden över. Diagnosen ställs utifrån ROME-kriterierna vilka är ett symptombaserat diagnostiskt verktyg samt uteslutande av andra allvarliga tillstånd. Vidare kan IBS delas in i undergrupper beroende på avföringens konsistens mätt utifrån The Bristol stool form scale (BSFS). Patologin bakom sjukdomen är idag inte helt klarlagd men flera faktorer och mekanismer tros spela in. Däribland finns visceral hypersensitivitet och avvikande uttryck av smärtreglerande signalsubstanser, rubbningar i den gastrointestinala mikrobiotan, genetik, ökad inflammation, defekt mucosabarriär med ökad permeabilitet, psykosociala faktorer och kost. Behandling är främst inriktad på symptomlindring och att utbilda patienten i att hantera sjukdomen genom att undvika triggande faktorer som kan förvärra symptom. Probiotika är levande icke-patogena mikroorganismer som används i behandlande syfte. Några av de mest studerade släkterna av bakterier som används vid behandling av IBS är Lactobacillus och Bifidobacterium. Detta arbete syftade till att analysera effekten av probiotika i form av en kombination med dessa två släkten som symptomlindrande behandling vid IBS. Detta gjordes genom litteratursökning på databasen PubMed där fem artiklar filtrerades fram utifrån satta kriterier. Resultatet visade att probiotika innehållande Lactobaciullus och Bifidobacteirum har potential att förändra den gastrointestinala mikrobiotan. Man kunde också se att en ökad nivå Bifidobacteriumkorrelerade med sänkt symptomgrad och lägre nivå inflammatoriska markörer. Studierna visade också på sänkt tarmpermeabilitet efter intag av probiotika. Den generella symptombilden och allvarlighetsgraden av sjukdomen förbättrades och även flera specifika symptom. Trots det kunde en entydig och signifikant förbättring av livskvalitén inte fastställas. Dosen probiotika som användes var mellan 5-10 miljarder colony forming units (CFU) i alla utom en studie. Denna undersökte en betydligt högre dos om 52 miljarder CFU men gav trots det inte bättre resultat än övriga studier. Studiepopulationen var sammantaget enhetlig i de olika studierna och speglade också den vanligaste patientgruppen. Slutsatsen var att probiotika innehållande släkterna Bifidobacterium och Lactobacillus kan förbättra allvarlighetsgraden av IBS och ge en generell och specifik symptomlindring. / Irritable bowel syndrome (IBS) is one of the most common functional bowel disorders without any detectable biochemical or structural changes with a prevalence of about 10 % worldwide. The diagnosis is based on the ROME-criteria which is a symptom based diagnostic tool and also exclusion of other severe diseases. Further on, IBS can be divided into different subgroups based on stool texture evaluated by the Bristol stool form scale (BSFS).  The pathology behind IBS is not fully understood but several factors and mechanisms are thought to be involved. Amongst those are hypersensitivity in the gut and divergent pain transmission, disturbance in gut microbiota, genetics, increased inflammation, defective mucosal barrier function with increased permeability, psychosocial factors and diet. Treatment is mainly used to alleviate symptoms so as to help the patients to manage the disease by education and by avoiding the triggering factors that may exacerbate the symptoms.  Probiotics are living non-pathogen microorganisms, meaning they are not harmful, used to treat or favor the host. Some of the most studied genera of bacteria, both in general and used as treatment of IBS, are Lactobacillus and Bifidobacterium. These bacteria are often referred to as lactic acid bacteria due to their ability to metabolize specific carbohydrates and produce lactic acid.  This study aimed to investigate the effect of probiotics consisting of these two genera on symptom relief for patients with IBS. It was achieved by carrying out a literature review in the PubMed database. Five articles were found based on set criteria.  The results showed that probiotics based on Lactobacillus and Bifidobacterium have potential to alter the gut microbiota and that levels of Bifidobacterium corresponding to level of symptoms and inflammatory markers. Also, the intestinal permeability was lowered by probiotics administration. The overall symptoms and severity were decreased as well as several specific symptoms. Despite that, a significant increase in quality of life was not observed.  The dose used was between 5-10 billion colony forming units (CFU) in all but one study. This study used a much higher dose of 52 billion CFU and did also last a longer period of time but did not get better results than the other studies. The study population was in general similar in all studies and did also reflect the most common patient group based on prevalence.  In conclusion, probiotics consisting of Lactobacillus and Bifidobacterium can be used to improve severity of IBS and to relieve general and specific symptoms.

Introduction Ehlers-Danlos syndrome (EDS), specifically the hypermobility type (hEDS), is associated with a variety of gastrointestinal (GI) conditions. This study aims to evaluate the prevalence of and factors associated with gut dysmotility in patients with hEDS. Methods This is a retrospective study of hEDS patients conducted at the Cleveland Clinic's Center for Personalized Genetic Healthcare between January 2007 and December 2017. Demographics, GI motility testing, endoscopic, and imaging data were extracted from the patients' charts. Results A total of 218 patients with hEDS were identified. Among them, 136 (62.3%) patients had at least one GI symptom at the time of EDS diagnosis. Motility testing was performed and reported in 42 (19.2%) patients. Out of them, five (11.9%) had esophageal dysmotility, 18 (42.8%) had gastroparesis, five (11.9%) had small bowel/colon altered transit time, and four (9.5%) had global dysmotility. In univariable analysis, patients with postural orthostatic tachycardia syndrome (POTS) [odds ratio (OR): 8.88, 95% CI: 3.69-24.9, p<0.0001], fibromyalgia (OR: 4.43, 95% CI: 2.04-10.1, p=0.0002), history of irritable bowel syndrome (OR: 5.01, 95% CI: 2.31-11.2, p<0.0001), and gastroesophageal reflux disease (OR: 3.33, 95% CI: 1.55-7.44, p=0.002) were more likely to be diagnosed with GI dysmotility. On multivariable analysis, only POTS (OR: 5.74, 95% CI: 2.25-16.7, p=0.0005) was significantly associated with an increased likelihood of GI dysmotility. Conclusions This study suggests that GI symptoms are relatively common among patients with hEDS. Of the patients tested for dysmotility, 76.2% were found to have some form of dysmotility. POTS was found to be an independent predictive factor for GI dysmotility.