Intestinal Crises in the Newborn : Loss of Intestinal Absorptive Capacity after Necrotizing Enterocolitis

Intestinal crises in the newborn consist of a spectrum of gastrointestinal disorders, either congenital or acquired in the first month after birth. In the acquired group necrotizing enterocolitis (NEC) is generally recognized as the most important cause of intestinal crisis with significant mortality and long lasting morbidity. Other acquired disorders are volvulus and milk curd syndrome. Examples of congenital gastrointestinal disorders are gastroschisis, intestinal atresia, omphalocele, and meconium peritonitis (1-3). NEC is the main subject of this study

Endoplasmic Reticulum Stress, Unfolded Protein Response and Altered T Cell Differentiation in Necrotizing Enterocolitis

Background:Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) play important roles in chronic intestinal inflammation. Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in preterm infants and is characterized by acute intestinal inflammation and necrosis. The objective of the study is to investigate the role of ER stress and the UPR in NEC patients.Methods:Ileal tissues from NEC and control patients were obtained during surgical resection and/or at stoma closure. Splicing of XBP1 was detected using PCR, and gene expression was quantified using qPCR and Western blot.Results:Splicing of XBP1 was only detected in a subset of acute NEC (A-NEC) patients, and not in NEC patients who had undergone reanastomosis (R-NEC). The other ER stress and the UPR pathways, PERK and ATF6, were not activated in NEC patients. A-NEC patients showing XBP1 splicing (A-NEC-XBP1s) had increased mucosal expression of GRP78, CHOP, IL6 and IL8. Similar results were obtained by inducing ER stress and the UPR in vitro. A-NEC-XBP1s patients showed altered T cell differentiation indicated by decreased mucosal expression of RORC, IL17A and FOXP3. A-NEC-XBP1s patients additionally showed more severe morphological damage and a worse surgical outcome. Compared with A-NEC patients, R-NEC patients showed lower mucosal IL6 and IL8 expression and higher mucosal FOXP3 expression.Conclusions:XBP1 splicing, ER stress and the UPR in NEC are associated with increased IL6 and IL8 expression levels, altered T cell differentiation and severe epithelial injury

The timing of ostomy closure in infants with necrotizing enterocolitis: a systematic review

Item does not contain fulltextPURPOSE: The optimal timing of ostomy closure is a matter of debate. We performed a systematic review of outcomes of early ostomy closure (EC, within 8 weeks) and late ostomy closure (LC, after 8 weeks) in infants with necrotizing enterocolitis. METHODS: PubMed, EMbase, Web-of-Science, and Cinahl were searched for studies that detailed time to ostomy closure, and time to full enteral nutrition (FEN) or complications after ostomy closure. Patients with Hirschsprung's disease or anorectal malformations were excluded. Analysis was performed using SPSS 17 and RevMan 5. RESULTS: Of 778 retrieved articles, 5 met the inclusion criteria. The median score for study quality was 9 [range 8-14 on a scale of 0 to 32 points (Downs and Black, J Epidemiol Community Health 52:377-384, 1998)]. One study described mean time to FEN: 19.1 days after EC (n = 13) versus 7.2 days after LC (n = 24; P = 0.027). Four studies reported complication rates after ostomy closure, complications occurred in 27% of the EC group versus 23% of the LC group. The combined odds ratio (LC vs. EC) was 1.1 [95% CI 0.5, 2.5]. CONCLUSION: Evidence that supports early or late closure is scarce and the published articles are of poor quality. There is no significant difference between EC versus LC in the complication rate. This systematic review supports neither early nor late ostomy closure

The Gap in Referral Criteria for Pediatric Intestinal Transplantation

Background. Advancement in treatment of children with intestinal failure did not lead to change in generally accepted referral criteria for intestinal transplantation. Therefore, a study was conducted to evaluate the current referral criteria and to identify potential new criteria for pediatric intestinal transplantation among transplant centers in Europe, the United States, and Canada. Methods. The literature was searched to identify discussion points regarding current referral criteria and potential needs for extension. Questionnaires were sent to 50 centers performing pediatric intestinal transplantation. Close-ended questions were analyzed with descriptive statistics. Open-ended questions were analyzed by two reviewers using the thematic analysis method. Data were analyzed with SPSS version 17. Results. A total of 18 questionnaires were completed (response rate, 36%; 14 centers in Europe and 4 centers in the United States and Canada). Of all the respondents, 77% considered referral of children as too late and suggested that education of referring hospitals could improve this. Of all the respondents, 50% considered the current referral criteria as too general. More specifically, respondents suggested that "persistent hyperbilirubinemia" must be defined by a time-and-value limit and that Conclusions. Referral criteria for pediatric intestinal transplantation can be improved by defining more specified decision moments and by educating referring hospitals

The timing of ostomy closure in infants with necrotizing enterocolitis: a systematic review

The optimal timing of ostomy closure is a matter of debate. We performed a systematic review of outcomes of early ostomy closure (EC, within 8 weeks) and late ostomy closure (LC, after 8 weeks) in infants with necrotizing enterocolitis. PubMed, EMbase, Web-of-Science, and Cinahl were searched for studies that detailed time to ostomy closure, and time to full enteral nutrition (FEN) or complications after ostomy closure. Patients with Hirschsprung's disease or anorectal malformations were excluded. Analysis was performed using SPSS 17 and RevMan 5. Of 778 retrieved articles, 5 met the inclusion criteria. The median score for study quality was 9 [range 8-14 on a scale of 0 to 32 points (Downs and Black, J Epidemiol Community Health 52:377-384, 1998)]. One study described mean time to FEN: 19.1 days after EC (n = 13) versus 7.2 days after LC (n = 24; P = 0.027). Four studies reported complication rates after ostomy closure, complications occurred in 27 % of the EC group versus 23 % of the LC group. The combined odds ratio (LC vs. EC) was 1.1 Evidence that supports early or late closure is scarce and the published articles are of poor quality. There is no significant difference between EC versus LC in the complication rate. This systematic review supports neither early nor late ostomy closure

Thoracic empyema and pectoral abscess resulting from attempting suicide by injection of benzene in the pleural cavity

Background: Exposure to hydrocarbon compounds, such as benzene may cause injury to several organ systems. It occurs accidentally or intentionally by ingestion, inhalation, cutaneous exposure and either subcutaneous injection or intravenous injection. We report a patient who injected benzene into the left hemithorax and secondly attempted to commit suicide with paracetamol. Case presentation: A 52-year old man was admitted in the hospital because of an attempted suicide with an injection of benzene in the left hemithorax and ingestion of 50 tablets of 500 mg paracetamol. He developed a hydro-tensionpneumothorax due to inflammatory pleural effusion as a reaction to intrathoracic benzene. Therefore a chest-tube was inserted. A few days later he developed an empyema in the left lung and secondly a pectoral abscess, which required surgical debridement. After surgery, recovered fully and after 23 days of hospitalisation he was discharged to a psychiatric care facility. Conclusion: Hydrocarbon poisoning is either accidentally or intentionally and leads to thoracic pathology in rare cases. The most affected organ system is the respiratory system, and the cytotoxic effects of hydrocarbons can manifest as respiratory failure, pneumonitis and even acute respiratory distress syndrome (ARDS). Keywords: Benzene intoxication, Thoracic empyema, Hydrocarbon poisonin

Late vs early ostomy closure for necrotizing enterocolitis: analysis of adhesion formation, resource consumption, and costs

Background: Surgeons prefer to close ostomies at least 6 weeks after the primary operation because of the anticipated postoperative abdominal adhesions. Limited data support this habit. Our aim was to evaluate adhesion formation-together with an analysis of resource consumption and costs-in patients with necrotizing enterocolitis who underwent early closure (EC), compared with a group of patients who underwent late closure (LC). Methods: Chart reviews and cost analyses were performed on all patients with necrotizing enterocolitis undergoing ostomy closure from 1997 to 2009. Operative reports were independently scored for adhesions by 2 surgeons. Results: Thirteen patients underwent EC (median, 39 days; range, 32-40), whereas 62 patients underwent LC (median, 94 days; range, 54-150). Adhesion formation in the EC group (10/13 patients, or 77%) was not significantly different (P = 1.000) from the LC group (47/59 patients, or 80%). No differences were found in the costs of hospital stay, surgical interventions, and outpatient clinic visits. Conclusions: Ostomy closure within 6 weeks of the initial procedure was not associated with more adhesions or with changes in direct medical costs. Therefore, after stabilization of the patient, ostomy closure can be considered within 6 weeks during the same admission as the initial laparotomy. (C) 2012 Elsevier Inc. All rights reserved

Efficacy and safety of a parenteral amino acid solution containing alanyl-glutamine versus standard solution in infants: a first-in-man randomized double-blind trial

Background & aims: Efforts are directed at reaching the optimal composition of pediatric amino acids (AA) infusions. The goal was to demonstrate the safety and efficacy of a newly developed parenteral AA solution containing alanyl-glutamine (GLN-AA) compared to Standard-AA. Methods: This is a randomized (2:1), double-blind, multicentre clinical pilot trial. Infants after surgical interventions were allocated to receive GLN-AA or Standard-AA over a minimum of 5 days to maximum of 10 days. AA profiles in blood samples obtained at baseline, day 7, and end of treatment were compared to normal ranges. Data regarding safety, and efficacy were also collected. Results: Infants were comparable for (safety population) gestational age at birth (36 vs 38 weeks), birth weight (2460 vs 2955 g), and day of life during start intervention (1 vs 2 days). Plasma AA profiles in infants treated with GLN-AA (n = 13) were closer the normal ranges than those in infants treated with Standard-AA (n = 6). There were no clinical or statistical differences in adverse events, safety and efficacy parameters between both groups. Conclusion: This first-in-man study shows that GLN-AA is safe in infants after surgical interventions, and is well tolerated. Compared to reference values, GLN-AA better reflects the amino acid requirements of the infant