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1.
Gastroenterology ; 167(2): 333-342, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38401741

ABSTRACT

BACKGROUND & AIMS: The efficacy of a low fermentable oligo-, di-, monosaccharides and polyols (FODMAP) diet in irritable bowel syndrome (IBS) is well established. After the elimination period, a reintroduction phase aims to identify triggers. We studied the impact of a blinded reintroduction using FODMAP powders to objectively identify triggers and evaluated the effect on symptoms, quality of life, and psychosocial comorbidities. METHODS: Responders to a 6-week low FODMAP diet, defined by a drop in IBS symptom severity score (IBS-SSS) compared with baseline, entered a 9-week blinded randomized reintroduction phase with 6 FODMAP powders (fructans, fructose, galacto-oligosaccharides, lactose, mannitol, sorbitol) or control (glucose). A rise in IBS-SSS (≥50 points) defined a FODMAP trigger. Patients completed daily symptom diaries and questionnaires for quality of life and psychosocial comorbidities. RESULTS: In 117 recruited patients with IBS, IBS-SSS improved significantly after the elimination period compared with baseline (150 ± 116 vs 301 ± 97, P < .0001, 80% responders). Symptom recurrence was triggered in 85% of the FODMAP powders, by an average of 2.5 ± 2 FODMAPs/patient. The most prevalent triggers were fructans (56%) and mannitol (54%), followed by galacto-oligosaccharides, lactose, fructose, sorbitol, and glucose (respectively 35%, 28%, 27%, 23%, and 26%) with a significant increase in abdominal pain at day 1 for sorbitol/mannitol, day 2 for fructans/galacto-oligosaccharides, and day 3 for lactose. CONCLUSION: We confirmed the significant benefit of the low FODMAP diet in tertiary-care IBS. A blinded reintroduction revealed a personalized pattern of symptom recurrence, with fructans and mannitol as the most prevalent, and allows the most objective identification of individual FODMAP triggers. Ethical commission University hospital of Leuven reference number: s63629; Clinicaltrials.gov number: NCT04373304.


Subject(s)
Diet, Carbohydrate-Restricted , Disaccharides , Fermentation , Irritable Bowel Syndrome , Lactose , Mannitol , Monosaccharides , Oligosaccharides , Quality of Life , Humans , Irritable Bowel Syndrome/diet therapy , Female , Male , Adult , Middle Aged , Oligosaccharides/administration & dosage , Oligosaccharides/adverse effects , Mannitol/administration & dosage , Mannitol/adverse effects , Diet, Carbohydrate-Restricted/methods , Diet, Carbohydrate-Restricted/adverse effects , Treatment Outcome , Lactose/adverse effects , Lactose/administration & dosage , Monosaccharides/administration & dosage , Monosaccharides/adverse effects , Disaccharides/administration & dosage , Disaccharides/adverse effects , Polymers/administration & dosage , Fructose/administration & dosage , Fructose/adverse effects , Sorbitol/administration & dosage , Sorbitol/adverse effects , Fructans/administration & dosage , Fructans/adverse effects , Severity of Illness Index , Double-Blind Method , Surveys and Questionnaires , Powders , Recurrence , Young Adult , FODMAP Diet
2.
Curr Opin Clin Nutr Metab Care ; 26(2): 105-113, 2023 03 01.
Article in English | MEDLINE | ID: mdl-36728936

ABSTRACT

PURPOSE OF REVIEW: Intestinal transplantation (ITx), whether isolated or combined with other organs, is now a valid treatment option in some patients with chronic intestinal failure or extensive venous mesenteric thrombosis. The aim in these patients is not only to restore nutritional autonomy, but also to minimize the risk of complications, both short and long term. Despite parenteral nutrition playing a central part in the management of intestinal failure patients, there are little data about the perioperative and postoperative nutritional management of ITx patients, due to small patient populations per centre. In this review, we collected the scientific data available to date. RECENT FINDINGS: In this review, we will bundle the limited scientific information about diet after intestinal and multivisceral transplantation combined with recommendations from our own clinical practice in 28 ITx patients in University Hospitals Leuven, Belgium. We will discuss the immediate preoperative period, surgical complications necessitating dietary interventions and the late postoperative phase in a stable outpatient transplant recipient. SUMMARY: Although no specific research has been done in the field of ITx, we can extrapolate some findings from other solid organ transplants. Prehabilitation might prove to be of importance; Preserving kidney and liver function in the pretransplant period should be pursued. Transition from parenteral to enteral and oral nutrition can be complex due to inherent surgical procedures and possible complications. Ultimately, the goal is to give patients nutritional autonomy, while also minimizing the risk of foodborne infections by teaching patients well tolerated food practices.


Subject(s)
Intestinal Diseases , Intestinal Failure , Humans , Intestines/surgery , Intestine, Small , Intestinal Diseases/surgery , Parenteral Nutrition
3.
J Med Syst ; 46(8): 56, 2022 Jul 09.
Article in English | MEDLINE | ID: mdl-35804275

ABSTRACT

Parenteral nutrition (PN) is recommended in patients nutritionally at risk and unable to receive oral or enteral nutrition. A standardized electronic PN order format could enhance appropriate PN prescribing. We developed the OLIVE TREE (Offering guidance and Learning to prescribers to Initiate PN using a Validated Electronic decision TREE), embedded in our electronic health record. We aimed to evaluate its validity and impact on physicians' prescribing behavior. A non-randomized before-after study was carried out in a tertiary care center. The OLIVE TREE comprises 120 individual items. A process validation was performed to determine interrater agreement between a pharmacist and the treating physician. To estimate the proportion of patients for whom the OLIVE TREE had an effective and potential impact on physicians' prescribing behavior, a proof of concept study was conducted. The proportion of patients for whom PN was averted and the proportion of decisions not in line with the recommendation were also calculated. The process validation in 20 patients resulted in an interrater agreement of 95.0%. The proof of concept in 73 patients resulted in an effective and potential impact on prescribing behavior in 50.7% and 79.5% of these patients, respectively. Initiation of PN was not averted and recommendations of the OLIVE TREE were overruled in 42.5% of the patients. Our newly developed OLIVE TREE has a good process validity. A substantial impact on prescribing behavior was observed, although initiation of PN was not avoided. In the next phase, the decision tree will be implemented hospital-wide.


Subject(s)
Olea , Decision Trees , Electronics , Enteral Nutrition/methods , Humans , Parenteral Nutrition/adverse effects , Parenteral Nutrition/methods
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