Popular diets and nutritional assessment in the management of irritable bowel syndrome in inflammatory bowel disease: an overview of current evidence.

There is an increasing interest in using popular diets to manage inflammatory bowel diseases (IBDs), such as ulcerative colitis and Crohn disease. These conditions are often associated with nutritional deficiencies, protein­energy malnutrition, micronutrient malnutrition, altered body composition, and sarcopenia. While dietary interventions can be supportive in treating intestinal symptoms of adult IBD patients, it is important to note that current guidelines from major scientific societies do not recommend any specific dietary interventions in this field. This review aims to provide a summary of the current evidence on dietary­nutritional management for patients with IBD, specifically when the disease appears to be in remission, but the patient continues to experience irritable bowel syndrome (IBS) symptoms or functional gastrointestinal symptoms. We focus on vital aspects, such as malnutrition and sarcopenia definitions, screening, and nutritional assessment. We then discuss in detail the most popular diets used for IBD management over the years, characterizing each one in terms of effects on gut inflammation, IBS­like symptoms, and potential risk of malnutrition. These diets include a low­fermentable oligosaccharides, disaccharides, monosaccharides, and polyols diet, a gluten­free diet, a Mediterranean diet, and a plant­based diet. To date, current evidence does not conclusively establish the optimal diet for patients with IBS, suggesting that personalized dietary approaches may be the best strategy.

Diverticular Inflammation and Complication Assessment classification, CODA score and fecal calprotectin in clinical assessment of patients with diverticular disease: A decision curve analysis.

BACKGROUND AND AIMS: The Diverticular Inflammation and Complication Assessment (DICA) classification and the Combined Overview on Diverticular Assessment (CODA) were found to be effective in predicting the outcomes of Diverticular Disease (DD). We ascertain whether fecal calprotectin (FC) can further aid in improving risk stratification. METHODS: A three-year international, multicentre, prospective cohort study was conducted involving 43 Gastroenterology and Endoscopy centres. Survival methods for censored observations were used to estimate the risk of acute diverticulitis (AD) in newly diagnosed DD patients according to basal FC, DICA, and CODA. The net benefit of management strategies based on DICA, CODA and FC in addition to CODA was assessed with decision curve analysis, which incorporates the harms and benefits of using a prognostic model for clinical decisions. RESULTS: At the first diagnosis of diverticulosis/DD, 871 participants underwent FC measurement. FC was associated with the risk of AD at 3 years (HR per each base 10 logarithm increase: 3.29; 95% confidence interval, 2.13-5.10) and showed moderate discrimination (c-statistic: 0.685; 0.614-0.756). DICA and CODA were more accurate predictors of AD than FC. However, FC showed high discrimination capacity to predict AD at 3 months, which was not maintained at longer follow-up times. The decision curve analysis comparing the combination of FC and CODA with CODA alone did not clearly indicate a larger net benefit of one strategy over the other. CONCLUSIONS: FC measurement could be used as a complementary tool to assess the immediate risk of AD. In all other cases, treatment strategies based on the CODA score alone should be recommended.

A retrospective analysis of treatment patterns, drug discontinuation and healthcare costs in Crohn's disease patients treated with biologics.

BACKGROUND/AIMS: This real-world analysis evaluated the persistence and direct healthcare costs of Crohn's Disease (CD) patients treated with biologics in Italy. METHODS: A retrospective analysis on administrative databases of Italian healthcare entities, covering 10.4 million residents, was performed. Adult CD patients under biologics between 2015 and 2020 were included and attributed to first/second treatment line based on absence/presence of biologic prescriptions 5-years before index-date (first biologic prescription). RESULTS: Of 16,374 CD patients identified, 1,398 (8.5%) were biologic-treated: 1,256 (89.8%) in first line and 135 (9.7%) in second line. Kaplan-Meier curves estimated a higher persistence for ustekinumab-treated patients followed by vedolizumab, infliximab and adalimumab, in both lines. Considering baseline variables and adalimumab as reference, infliximab in first line (HR: 0.537) and ustekinumab in first (HR: 0.057) and second line (HR: 0.213) were associated with significantly reduced risk of drug-discontinuation. First line total/average healthcare direct-costs were €13,637, €11,201, €17,104 and €18,340 in patients persistent on adalimumab, infliximab, ustekinumab and vedolizumab, respectively. CONCLUSIONS: This real-world analysis showed differences in persistence over 12-months between biologic treatments, being higher in ustekinumab-treated group, followed by vedolizumab, infliximab and adalimumab. Patients' management was associated with comparable direct healthcare costs among treatment lines, mainly driven by drug-related expenses.

Cost-effectiveness analysis of genetic diagnostic strategies for Lynch syndrome in Italy.

Lynch syndrome (LS) is an autosomal dominant condition caused by pathogenic variants in mismatch repair (MMR) genes that predispose individuals to different malignancies, such as colorectal cancer (CRC) and endometrial cancer. Current guidelines recommended testing for LS in individuals with newly diagnosed CRC to reduce cancer morbidity and mortality in relatives. Economic evaluations in support of such approach, however, are not available in Italy. We developed a decision-analytic model to analyze the cost-effectiveness of LS screening from the perspective of the Italian National Health System. Three testing strategies: the sequencing of all MMR genes without prior tumor analysis (Strategy 1), a sequential IHC and MS-MLPA analysis (Strategy 2), and an age-targeted strategy with a revised Bethesda criteria assessment before IHC and methylation-specific MLPA for patients ≥ than 70 years old (Strategy 3) were analyzed and compared to the "no testing" strategy. Quality Adjusted Life Years (QALYs) in relatives after colonoscopy, aspirin prophylaxis and an intensive gynecological surveillance were estimated through a Markov model. Assuming a CRC incidence rate of 0.09% and a share of patients affected by LS equal to 2.81%, the number of detected pathogenic variants among CRC cases ranges, in a given year, between 910 and 1167 depending on the testing strategy employed. The testing strategies investigated, provided one-time to the entire eligible population (CRC patients), were associated with an overall cost ranging between €1,753,059.93-€10,388,000.00. The incremental cost-effectiveness ratios of the Markov model ranged from €941.24 /QALY to €1,681.93 /QALY, thus supporting that "universal testing" versus "no testing" is cost-effective, but not necessarily in comparison with age-targeted strategies. This is the first economic evaluation on different testing strategies for LS in Italy. The results might support the introduction of cost-effective recommendations for LS screening in Italy.

The Current Practice of Lynch Syndrome Diagnosis and Management in Italy: A Qualitative Assessment.

BACKGROUND: Lynch syndrome (LS) is the most frequent form of hereditary colorectal cancer (CRC; up to 3-5% of the total CRC burden) and predisposes to the development of other cancers. Multidisciplinary diagnostic strategies are relevant both to the index cases and to their at-risk relatives, but their implementation is still limited. Our study aimed to explore LS testing practices in Italy. METHODS: In order to ascertain the current practice of LS diagnosis and management, we conducted a qualitative assessment by sending a questionnaire to health care professionals at 4 Italian hospitals selected as "models" representing different hospital settings. Based on the surveys, we reconstructed the management pathways for CRC patients in terms of diagnostic strategies and health professionals involved. RESULTS: Seven of the 8 invited professionals filled in the questionnaire. Noncompliance with the latest guidelines was reported, as no tumor "screening" was performed on CRC cases. The lack of a structured multidisciplinary team who manages CRC patients from risk assessment to diagnosis and follow-up was reported. The availability of professionals and laboratory technologies differ widely between hospitals. As for cascade testing of at-risk relatives, a systematic and active approach was absent in all the considered hospitals. CONCLUSIONS: Our study shows that no structured and standardized pathways for the diagnosis and management of LS patients are currently in place in Italy. We envisage that by extending our research to further experiences and countries, an increasing awareness of the topic can be translated into a health gain for hereditary CRC patients and their at-risk relatives.

Therapy experiences and preferences among patients with anemia: Results of a cross-sectional survey among Italian patients with inflammatory bowel disease.

BACKGROUND: Anemia represents one of the most common and often the least treated complications of inflammatory bowel disease (IBD). AIMS: Our study investigates experiences and preferences concerning anemia treatment in patients with IBD. METHODS: IBD patients previously diagnosed with anemia were invited to participate in an anonymous survey between July and September 2015, which assessed demographic and clinical data, and experiences regarding anemia treatment. RESULTS: A total of 118 IBD patients were invited to participate in the study, of which 100 (85%) were included in the analysis. Seventy-five percent of patients reported a high personal burden related to intravenous therapy, while the majority of companions (76%) declared a moderate burden. The increased importance assigned to the possibility of a single session treatment was significantly associated with age (Beta=0.01; p=0.03), working status (Beta=0.02; p=0.04), anemia severity (severe vs. mild, Beta=0.42; p=0.03), and intravenous treatment (Beta=0.44; p=0.001). CONCLUSIONS: Most patients reported a high personal and a moderate companions' burden. Having the possibility of effective single dose intravenous therapy was of great importance. Patients' perspective provides key information for evaluating the indirect costs of anemia treatment in IBD which, according to the health technology assessment approach, could be useful in a patient centered decision making process.