The role of exclusive enteral nutrition in the pre-operative optimisation of adult patients with Crohn's disease. A systematic review.

AIM: To conduct a systematic review in order to bring together the current knowledge about the use of exclusive enteral nutrition (EEN) in the pre-operative optimisation of adult patients with Crohn's disease undergoing intestinal resection. METHODS: We searched Pubmed, Cochrane Library, ClinicalTrials.gov and the EU clinical trial register to identify experimental and observational studies on the effect of pre-operative EEN on nutritional and clinical outcomes of patients undergoing surgery. Methodological quality was assessed using the Downs and Black checklist. RESULTS: Seven studies were included in the final analysis. Of these 5 were retrospective cohort studies and 2 were retrospective case-control studies. There were 4 ongoing RCTs, however they have not reported data to analyse. Overall the 7 retrospective studies, support that with EEN; body mass index (BMI) does not increase, C-reactive protein decreases (CRP), albumin usually increases and haemoglobin does not significantly change. There were fewer infectious complications in patients who had taken EEN. There was a trend towards fewer stomas but only one of the studies was powered enough to demonstrate significance. There was no significant difference in recurrence rates of Crohn's disease at 12 months in any of the studies. Quality of the studies were either medium or poor. CONCLUSION: The current data on the use of EEN in pre-operative optimisation is of poor quality and underpowered to demonstrate significance. Randomised controlled trials are needed to demonstrate whether or not EEN can improve outcomes and reduce stoma formation in adult patients undergoing intestinal resection.

Does exclusive enteral nutrition reduce the rate of stoma formation in patients requiring ileocolic resection for Crohn's disease? A single center experience.

BACKGROUND AND AIM: Nutrition has a role in achieving and maintaining remission in Crohn's disease. The aim of this study was to determine the impact of a strategy of steroid-avoidance and Exclusive Enteral Nutrition (EEN) for 6 weeks (with a minimum of 4 weeks) in adult patients presenting with acute small bowel Crohn's disease followed by an interval ileocolic resection 4-6 weeks later. METHODS: Retrospective review of prospectively collected data. Patients were administered exclusive enteral nutrition (EEN) for at least 4 weeks prior to surgery. RESULTS: 24 EEN patients included. Median age of 45 (range 23-73). 17/24 patients tolerated Modulen for at least 4 weeks, 5 were switched to Ensures and 2 a liquid diet. 6 patients underwent surgery earlier than planned. Prior to surgery, there was no change in the mean BMI, albumin increased from a mean of 36 g/L (range 25-43) to 40 g/L (range 30-48). CRP levels decreased by a mean of 35.8 mg/L overall. 19 (79%) of operations were performed laparoscopically. 6 of the cases were re-do operations. All but 3 patients avoided a stoma at the time of the original operation. There were 5 post-operative complications: 1 anastomotic leak in a patient with a BMI of 42, 3 cases of paralytic ileus and 2 wound infections. Median length of stay was 7 days (range 3-76 days). Only 2 patients were readmitted within the 30-day post-operative period. CONCLUSION: The pre-operative use of EEN appears to avoid unnecessary stoma formation with acceptable clinical outcomes.

Neurogenic bowel dysfunction in patients with multiple sclerosis: prevalence, impact, and management strategies.

Bowel dysfunction in patients with multiple sclerosis (MS) is highly prevalent. Constipation and fecal incontinence can coexist and alternate, impacting on the patient's quality of life and social interactions, as well as burdening the caregivers. The cost for the health care providers is also significant, with increased number of hospital admissions, treatment-related costs, and hospital appointments. The origin is multifactorial, and includes alteration of neurological pathways, polypharmacy, behavioral elements, and ability to access the toilet. Every patient with MS should be sensitively questioned about bowel function, and red flag symptoms should prompt adequate investigations. Manipulation of life style factors and establishment of a bowel regime should be attempted in the first place, and if this fails, other measures such as biofeedback and transanal irrigation should be included. A stoma can improve quality of life, and is not necessarily a last-ditch option. Antegrade colonic enemas can also be an effective option, whilst neuromodulation has not proved its role yet. Effective treatment of bowel dysfunction improves quality of life, reduces incidence of urinary tract infection, and reduces health care costs.

Schwannoma presenting with anteromedial knee pain and bone defect.

Tumors of the peripheral nerve sheath including schwannomas are known for their rarity and can present with neurological deficit. We report an interesting case of schwannoma of the infrapatellar branch of saphenous nerve presenting with anteromedial knee pain and proximal tibial metaphyseal defect. A 26-year-old man presented with pain and swelling (for the past 2 months) in the anteromedial aspect of knee. Investigations revealed scalloping lesion in the anteromedial aspect of proximal tibia with sclerosed margins. Surgical exploration identified an encapsulated tumor lying over the defect in the proximal tibial metaphysis. Histopathological examination confirmed benign schwannoma and the patient became symptom-free after the surgery. Schwannoma of the infrapatellar branch of saphenous nerve can present with anteromedial knee pain. In patients with an eccentrically placed metaphyseal defect of the anteromedial tibia with sclerosed smooth margins, the possibility of nerve sheath tumors should always be considered.