Publications by authors named "Ayal Hirsch"

Article Synopsis
  • - This study explored how the processing level of food affects disease activity in inflammatory bowel disease (IBD) patients, analyzing dietary patterns and their correlation with clinical outcomes.
  • - Researchers found that higher intake of unprocessed/minimally processed foods was linked to lower disease activity, while high consumption of ultra-processed foods was associated with increased disease activity.
  • - The results suggest that moderating processed food intake could influence IBD outcomes, indicating a need for further prospective studies to validate these findings.
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Article Synopsis
  • A study was conducted to compare two preparation protocols for patients with Crohn's disease who ingested a patency capsule (PC) to assess its effectiveness in reducing failed PC rates.
  • The pro-motility group, which followed a specific diet and took medication, showed a significantly lower failed PC rate (12.0%) compared to the control group (24.7%).
  • Findings suggest that the pro-motility protocol not only enhances the success rate of the patency test but may also help minimize the risk of complications related to capsule retention.
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Background And Aims: Several faecal microbial transplantation [FMT] approaches for ulcerative colitis [UC] have been investigated with conflicting results. We have recently published the clinical outcomes from the CRAFT UC Trial using FMT with the UC Exclusion Diet [UCED], compared with FMT alone. Here we aimed to compare the two FMT strategies in terms of microbial profile and function.

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We aimed to elucidate the effect of Medical Cannabis (MC) on appetite and nutritional status among patients with inflammatory bowel disease (IBD). A case series of patients with IBD were initiating treatment with MC for disease-related symptoms, at the IBD clinic of a tertiary referral medical center. Patients' demographics, anthropometrics, medical history and treatment and MC use were systematically recorded.

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  • Postoperative recurrence (POR) is common in Crohn's disease patients after surgery, but can be reduced with preventive treatment; however, there is insufficient data on the best treatment options and timing.
  • A clinical study compared the effectiveness of early treatment with 6-mercaptopurine (6-MP) versus adalimumab in patients after ileocecectomy, finding that adalimumab significantly reduced endoscopic recurrence rates at both 32 and 58 weeks post-surgery.
  • Factors like increased size of the resected bowel, lower body mass index (BMI), and specific lab results were linked to a higher risk of endoscopic recurrence, indicating that adalimumab may be a more effective choice for
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  • A study investigated the effectiveness of adalimumab, an anti-TNFα monoclonal antibody, in ulcerative colitis (UC) patients, revealing that fewer UC patients continued treatment compared to those with Crohn's disease (CD).
  • In a cohort of 50 UC patients, only 22% maintained treatment through the follow-up period, while 51% of 98 CD patients did.
  • The loss of response to treatment was notably higher in UC patients, with 34% developing antibodies against adalimumab, although immunogenicity rates were similar between both patient groups.
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The Crohn's Disease (CD) exclusion diet (CDED) has been shown to induce remission in pediatric and adult patients with CD. In this retrospective cohort study, we describe our real-world experience with the CDED at the inflammatory bowel disease (IBD) unit of the Tel Aviv Medical Center between 2018-2021. CD patients with multiple clinical presentations and disease phenotypes who initiated the diet were included.

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Background & Aims: We evaluated the efficacy of herbal combination of curcumin-QingDai (CurQD) in active ulcerative colitis (UC).

Methods: Part I was an open-label trial of CurQD in patients with active UC, defined by a Simple Clinical Colitis Activity Index score of 5 or higher and a Mayo endoscopic subscore of 2 or higher. Part II was a placebo-controlled trial conducted in Israel and Greece, randomizing active UC patients at a 2:1 ratio to enteric-coated CurQD 3 g/d or placebo for 8 weeks.

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Background: Curcumin and QingDai (QD, Indigo) have been shown to be effective for treating active ulcerative colitis (UC).

Aim: To evaluate the real-world experience with the Curcumin-QingDai (CurQD) herbal combination to induce remission in active UC.

Methods: A retrospec-tive multicentre adult cohort study from five tertiary academic centres (2018-2022).

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Restorative proctocolectomy with ileal pouch-anal anastomosis is the surgical treatment of choice for patients with ulcerative colitis. Unfortunately, pouch inflammation (ie, pouchitis) is reported in up to 72% of pouch patients..

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Background: Crohn's disease (CD) and ulcerative colitis (UC) are chronic, immune-mediated inflammatory bowel diseases (IBD) affecting millions of people worldwide. IBD therapies, designed for continuous immune suppression, often render patients more susceptible to infections. The effect of the immune suppression on the risk of coronavirus disease-19 (COVID-19) is not fully determined yet.

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Background: Educating patients regarding thier inflammatory bowel disease (IBD) is important for their empowerment and disease management. We aimed to develop a questionnaire to evaluate patient understanding and knowledge of IBD.

Methods: We have developed the Understanding IBD Questionnaires (U-IBDQ), consisting of multiple-choice questions in two versions [for Crohn's disease (CD) and ulcerative colitis (UC)].

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(1) Background: Malnutrition is a highly prevalent complication in patients with inflammatory bowel diseases (IBD). It is strongly associated with poor clinical outcomes and quality of life. Screening for malnutrition risk is recommended routinely; however, current malnutrition screening tools do not incorporate IBD specific characteristics and may be less adequate for screening these patients.

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Background: The Crohn's disease exclusion diet (CDED) with partial enteral nutrition is effective for induction of remission in children with mild-to-moderate Crohn's disease. We aimed to assess the CDED in adults with Crohn's disease.

Methods: We did an open-label, pilot randomised trial at three medical centres in Israel.

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Background: We evaluated whether integration of novel diets for donors and patients, in addition to faecal transplantation [FT], could increase FT remission rate in refractory ulcerative colitis [UC].

Methods: This was a blinded, randomised, controlled trial in adults with active UC, defined by a simple clinical colitis activity index [SCCAI] of ≥5 and ≤11 and endoscopic Mayo score 2-3, refractory to medication. Group 1 received free diet and single donor standard FT by colonoscopy on Day 1and rectal enemas on Days 2 and 14 without dietary conditioning of the donor.

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Background: An early treat-to-target approach in Crohn's disease (CD) patients is recommended to avoid complications. However, CD may not always progress despite lack of treatment, thus exposing some patients to unnecessary side effects. We aimed to examine whether newly diagnosed CD patients with an inflammatory phenotype can benefit from a watchful waiting approach.

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Background: Biomarker normalization and endoscopic remission are superior to clinical remission in achieving improved long-term clinical outcomes in patients with inflammatory bowel diseases.

Goal: To study whether higher maintenance adalimumab levels are associated with clinical remission, biomarker normalization, and endoscopic remission.

Study: Data were collected retrospectively from the patients' medical records.

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Background: Immune modulating therapies are associated with an increased risk of infections and malignancies. This is of particular concern in elderly inflammatory bowel disease patients. This study aims to compare the safety and efficacy of vedolizumab between young and elderly inflammatory bowel disease patients.

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Background: Processed foods have been implicated in the pathogenesis of inflammatory bowel diseases (IBD). Our goal was to develop a validated processed foods frequency questionnaire (PFQ) and assess its reliability and validity.

Methods: We recruited adult IBD patients to fill-in a PFQ in this prospective single-center study.

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The original version of the article unfortunately contained an error in a percentage value in Results section of Abstract.

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Enteric infections have previously been postulated to play a role in the pathogenesis of inflammatory bowel disease (IBD), however, little evidence exists in the etiologic role of specific enteric infections in the development of IBD. When encountered in the setting of IBD, enteric infections pose a clinical challenge in management given the competing treatment strategies for infectious conditions and autoimmune disorders. Here we present the case of a young male with enteric infections complicating a new diagnosis of IBD.

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The historical approach to neoplasia in the setting of chronic colitis was to perform a total proctocolectomy. Recent consensus and society guidelines suggest that when dysplastic lesions can be removed endoscopically, continued surveillance is appropriate. This is based on improvements in optical technologies and the low risk of metachronous colorectal carcinoma in these patients.

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Introduction: Clostridium difficile is the most commonly isolated stool pathogen in inflammatory bowel disease (IBD). Traditional risk factors for C. difficile may not exist in patients with IBD, and no prior studies have assessed the risk factors for the isolation of C.

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Background: advanced dementia is an incurable illness, its last stage marked by inability to eat. Tube feeding was deemed a helpful solution at this stage, but in recent years its inefficiency has been proved, and it is no longer practiced in many countries around the world. In Israel, however, the procedure is still accepted.

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Goals: The aim of this study was to assess whether sustained 6-thioguaninenucleotide (6-TGN) levels were associated with improved long-term outcomes in patients with inflammatory bowel diseases (IBD).

Background: Cross-sectional data have shown that thiopurine metabolites are correlated with clinical efficacy in patient receiving thiopurines for IBD but the role for serial measurements through treatment course is unclear.

Study: We conducted a retrospective cohort study including patients with IBD on thiopurine monotherapy and had serial 6-TGN levels measured.

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