Péter Varjú

Low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diet improves symptoms in adults suffering from irritable bowel syndrome (IBS) compared to standard IBS diet: A meta-analysis of clinical studies

Background Irritable bowel syndrome (IBS) and functional digestive tract disorders, e.g. functional bloating, carbohydrate maldigestion and intolerances, are very common disorders frequently causing significant symptoms that challenge health care systems. A low Fermentable Oligosaccharides, Disaccharides, Monosaccharides and Polyols (FODMAP) diet is one of the possible therapeutic approaches for decreasing abdominal symptoms and improving quality of life. Objectives We aimed to meta-analyze data on the therapeutic effect of a low-FODMAP diet on symptoms of IBS and quality of life and compare its effectiveness to a regular, standard IBS diet with high FODMAP content, using a common scoring system, the IBS Symptom Severity Score (IBS-SSS). Methods A systematic literature search was conducted in PubMed, EMBASE and the Cochrane Library as well as in the references in a recent meta-analysis. Adult patients diagnosed with IBS according to the Rome II, Rome III, Rome IV or NICE criteria were included in the analysis. Statistical methods Mean differences with 95% confidence intervals were calculated from studies that contained means, standard deviation (SD) or mean differences and SD of differences and p-values. A random effect model was used because of the heterogeneity (Q test (χ2) and I2 indicator). A p-value of less than 0.05 was chosen to indicate a significant difference. Results The literature search yielded 902 publications, but only 10 were eligible for our meta-analysis. Both regular and low-FODMAP diets proved to be effective in IBS, but post-diet IBS-SSS values were significantly lower (p = 0.002) in the low-FODMAP group. The low-FODMAP diet showed a correlation with the improvement of general symptoms (by IBS-SSS) in patients with IBS. Conclusions This meta-analysis provides high-grade evidence of an improved general symptom score among patients with irritable bowel syndrome who have maintained a low-FODMAP diet compared to those on a traditional IBS diet, therefore showing its superiority to regular IBS dietary therapy. These data suggest that a low-FODMAP diet with dietitian control can be a candidate for first-line therapeutic modality in IBS. Because of a lack of data, well-planned randomized controlled studies are needed to ascertain the correlation between improvement of separate key IBS symptoms and the effect of a low-FODMAP diet.

Meta-analysis of the long term success rate of different interventions in benign biliary strictures

Background Benign biliary stricture is a rare condition and the majority of the cases are caused by operative trauma or chronic inflammation based on various etiology. Although the initial results of endoscopic, percutaneous and surgical treatment are impressive, no comparison about long term stricture resolution is available. Aims The goal of this study was to compare the long term disease free survival in benign biliary strictures with various etiology after surgery, percutaneous transhepatic—and endoscopic treatment. Methods PubMed, Embase, and Cochrane Library were searched by computer and manually for published studies. The investigators selected the publications according to the inclusion and exclusion criteria, processed the data and assessed the quality of the selected studies. Meta-analysis of data of 24 publications was performed to compare long term disease free survival of different treatment groups. Results Compared the subgroups surgery resulted in the highest long term stricture resolution rate, followed by the percutaneous transhepatic treatment, the multiple plastic stent insertion and covered self-expanding metal stents (SEMS), however the difference was not significant. All compared methods are significantly superior to the single plastic stent placement. Long term stricture resolution rate irrespectively of any therapy is still not more than 84%. Conclusions In summary, the use of single plastic stent is not recommended. Further randomized studies and innovative technical development are required for improving the treatment of benign biliary strictures.

Steroid but not Biological Therapy Elevates the risk of Venous Thromboembolic Events in Inflammatory Bowel Disease: A Meta-Analysis

Background and Aims Inflammatory bowel disease [IBD] is associated with a 1.5- to 3-fold increased risk of venous thromboembolism [VTE] events. The aim of this study was to determine the risk of VTE in IBD as a complication of systemic corticosteroids and anti-tumour necrosis factor alpha [TNFα] therapies. Methods A systematic review and meta-analysis was conducted, which conforms to the Preferred Reporting Items for Systematic Reviews and Meta-analyses [PRISMA] statement. PubMed, EMBASE, Cochrane Library and Web of Science were searched for English-language studies published from inception inclusive of 15 April 2017. The population-intervention-comparison-outcome [PICO] format and statistically the random-effects and fixed-effect models were used to compare VTE risk during steroid and anti-TNFα treatment. Quality of the included studies was assessed using the Newcastle-Ottawa scale. The PROSPERO registration number is 42017070084. Results We identified 817 records, of which eight observational studies, involving 58518 IBD patients, were eligible for quantitative synthesis. In total, 3260 thromboembolic events occurred. Systemic corticosteroids were associated with a significantly higher rate of VTE complication in IBD patients as compared to IBD patients without steroid medication (odds ratio [OR]: 2.202; 95% confidence interval [CI]: 1.698-2.856, p < 0.001). In contrast, treatment with anti-TNFα agents resulted in a 5-fold decreased risk of VTE compared to steroid medication [OR: 0.267; 95% CI: 0.106-0.674, p = 0.005]. Conclusion VTE risk should be carefully assessed and considered when deciding between anti-TNFα and steroids in the management of severe flare-ups. Thromboprophylaxis guidelines should be followed, no matter the therapy choice.

Restoration of energy level in the early phase of acute pediatric pancreatitis

Acute pancreatitis (AP) is a serious inflammatory disease with rising incidence both in the adult and pediatric populations. It has been shown that mitochondrial injury and energy depletion are the earliest intracellular events in the early phase of AP. Moreover, it has been revealed that restoration of intracellular ATP level restores cellular functions and defends the cells from death. We have recently shown in a systematic review and meta-analysis that early enteral feeding is beneficial in adults; however, no reviews are available concerning the effect of early enteral feeding in pediatric AP. In this minireview, our aim was to systematically analyse the literature on the treatment of acute pediatric pancreatitis. The preferred reporting items for systematic review (PRISMA-P) were followed, and the question was drafted based on participants, intervention, comparison and outcomes: P: patients under the age of twenty-one suffering from acute pancreatitis; I: early enteral nutrition (per os and nasogastric- or nasojejunal tube started within 48 h); C: nil per os therapy; O: length of hospitalization, need for treatment at an intensive care unit, development of severe AP, lung injury (including lung oedema and pleural effusion), white blood cell count and pain score on admission. Altogether, 632 articles (PubMed: 131; EMBASE: 501) were found. After detailed screening of eligible papers, five of them met inclusion criteria. Only retrospective clinical trials were available. Due to insufficient information from the authors, it was only possible to address length of hospitalization as an outcome of the study. Our mini-meta-analysis showed that early enteral nutrition significantly (SD = 0.806, P = 0.034) decreases length of hospitalization compared with nil per os diet in acute pediatric pancreatitis. In this minireview, we clearly show that early enteral nutrition, started within 24-48 h, is beneficial in acute pediatric pancreatitis. Prospective studies and better presentation of research are crucially needed to achieve a higher level of evidence.

High versus low energy administration in the early phase of acute pancreatitis (GOULASH trial): protocol of a multicentre randomised double-blind clinical trial

Introduction Acute pancreatitis (AP) is an inflammatory disease with no specific treatment. Mitochondrial injury followed by ATP depletion in both acinar and ductal cells is a recently discovered early event in its pathogenesis. Importantly, preclinical research has shown that intracellular ATP delivery restores the physiological function of the cells and protects from cell injury, suggesting that restoration of energy levels in the pancreas is therapeutically beneficial. Despite several high quality experimental observations in this area, no randomised trials have been conducted to date to address the requirements for energy intake in the early phase of AP. Methods/design This is a randomised controlled two-arm double-blind multicentre trial. Patients with AP will be randomly assigned to groups A (30 kcal/kg/day energy administration starting within 24 hours of hospital admission) or B (low energy administration during the first 72 hours of hospital admission). Energy will be delivered by nasoenteric tube feeding with additional intravenous glucose supplementation or total parenteral nutrition if necessary. A combination of multiorgan failure for more than 48 hours and mortality is defined as the primary endpoint, whereas several secondary endpoints such as length of hospitalisation or pain will be determined to elucidate more detailed differences between the groups. The general feasibility, safety and quality checks required for high quality evidence will be adhered to. Ethics and dissemination The study has been approved by the relevant organisation, the Scientific and Research Ethics Committee of the Hungarian Medical Research Council (55961-2/2016/EKU). This study will provide evidence as to whether early high energy nutritional support is beneficial in the clinical management of AP. The results of this trial will be published in an open access way and disseminated among medical doctors. Trial registration The trial has been registered at the ISRCTN (ISRTCN 63827758).

A Nissen-féle fundoplicatio sikeressége és az azt befolyásoló faktorok. Eredmények a Pécsi Tudományegyetemen az indikációk és tünetek függvényében

INTRODUCTION Gastroesophageal reflux disease is one of the most common gastrointestinal diseases in developed countries. Besides the conservative modalities, surgery plays an increasing role in the treatment of the disease. AIM Our aim was to investigate and compare the surgical and 6-month follow-up data of patients to the literature (quality control), who underwent Nissen fundoplication in the Medical Centre of Pecs between 2007 and 2014, and to assess the factors (especially psychiatric comorbidity and antidepressants) influencing the success. METHOD In summary, data of 183 fundoplications of 166 patients were collected from the medical database of the University of Pecs. STATISTICAL ANALYSIS For data analysis, descriptive statistical methods (relative frequency) and odds ratio with 95% confidence interval were used. RESULTS The most frequent indication of fundoplications was hiatal hernia combined with the failure of conservative (proton-pump inhibitor, PPI) treatment (54%). Reoperation rate (8%) was similar to literature data (5-10%). 62% of the patients had postoperative complaints, which, except bloating, were more common among women. 93.67% experienced certain grade of improvement of reflux symptoms. Postoperative PPI treatment was necessary in 37% of patients and in 9% postoperative interventions had to be performed. Female gender and psychiatric comorbidity worsened, antidepressant medication improved the success rate. The results of reoperations were inferior compared to primary operations. CONCLUSIONS Our results suggest that the success rate of fundoplications in our centre fits to the literature data and adequate antidepressant medication may improve the worse results of psychiatric patients postoperatively, however, more randomized clinical studies are needed in this issue. Orv Hetil. 2018; 159(25): 1013-1023.INTRODUCTION Gastroesophageal reflux disease is one of the most common gastrointestinal diseases in developed countries. Besides the conservative modalities, surgery plays an increasing role in the treatment of the disease. AIM Our aim was to investigate and compare the surgical and 6-month follow-up data of patients to the literature (quality control), who underwent Nissen fundoplication in the Medical Centre of Pécs between 2007 and 2014, and to assess the factors (especially psychiatric comorbidity and antidepressants) influencing the success. METHOD In summary, data of 183 fundoplications of 166 patients were collected from the medical database of the University of Pécs. STATISTICAL ANALYSIS For data analysis, descriptive statistical methods (relative frequency) and odds ratio with 95% confidence interval were used. RESULTS The most frequent indication of fundoplications was hiatal hernia combined with the failure of conservative (proton-pump inhibitor, PPI) treatment (54%). Reoperation rate (8%) was similar to literature data (5-10%). 62% of the patients had postoperative complaints, which, except bloating, were more common among women. 93.67% experienced certain grade of improvement of reflux symptoms. Postoperative PPI treatment was necessary in 37% of patients and in 9% postoperative interventions had to be performed. Female gender and psychiatric comorbidity worsened, antidepressant medication improved the success rate. The results of reoperations were inferior compared to primary operations. CONCLUSIONS Our results suggest that the success rate of fundoplications in our centre fits to the literature data and adequate antidepressant medication may improve the worse results of psychiatric patients postoperatively, however, more randomized clinical studies are needed in this issue. Orv Hetil. 2018; 159(25): 1013-1023.