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Ramatchandirin B, Balamurugan MA, Desiraju S, Chung Y, MohanKumar K. A Detailed Protocol for the Induction of Anemia and RBC Transfusion-associated Necrotizing Enterocolitis in Neonatal Mice. Bio Protoc 2024; 14:e4993. [PMID: 38798982 PMCID: PMC11116893 DOI: 10.21769/bioprotoc.4993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024] Open
Abstract
Anemia is a common and serious health problem, nearly universally diagnosed in preterm infants, and is associated with increased morbidity and mortality worldwide. Red blood cell (RBC) transfusion is a lifesaving and mainstay therapy; however, it has critical adverse effects. One consequence is necrotizing enterocolitis (NEC), an inflammatory bowel necrosis disease in preterm infants. The murine model of phlebotomy-induced anemia and RBC transfusion-associated NEC enables a detailed study of the molecular mechanisms underlying these morbidities and the evaluation of potential new therapeutic strategies. This protocol describes a detailed procedure for obtaining murine pups with phlebotomy-induced anemia and delivering an RBC transfusion that develops NEC.
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Affiliation(s)
| | - Marie Amalie Balamurugan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Suneetha Desiraju
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yerin Chung
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Krishnan MohanKumar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
- Childrens Health and Research Institute, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, USA
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蔡 娜, 沈 蕾, 陈 盛. [Predictive value of hemoglobin decrease for necrotizing enterocolitis in preterm infants with late-onset sepsis]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:145-150. [PMID: 38436311 PMCID: PMC10921880 DOI: 10.7499/j.issn.1008-8830.2307011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/12/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES To study the predictive value of hemoglobin (Hb) decrease for the occurrence of necrotizing enterocolitis (NEC) in preterm infants with late-onset sepsis (LOS) . METHODS Clinical data of 93 LOS preterm infants were collected for retrospective analysis, among which 16 infants developed NEC while 77 infants did not. Based on the decrease in Hb levels from the most recent Hb measurement before LOS occurrence to the initial Hb levels during LOS, the infants were divided into three groups: no Hb decrease (n=15), mild Hb decrease (Hb decrease <15 g/L; n=35), and severe Hb decrease (Hb decrease ≥15 g/L; n=43). Multivariate logistic regression analysis was conducted to explore the predictive factors for NEC secondary to LOS, and the value of Hb decrease in predicting NEC secondary to LOS was evaluated through receiver operating characteristic curve analysis. RESULTS The incidence of NEC in the severe Hb decrease group, mild Hb decrease group, and no Hb decrease group were 26%, 14%, and 0% (P<0.05), respectively. Multivariate logistic regression analysis revealed that a larger Hb decrease was an independent predictive factor for NEC in LOS preterm infants (OR=1.141, 95%CI: 1.061-1.277, P<0.001). Receiver operating characteristic curve analysis showed that the area under the curve for predicting NEC in preterm infants with LOS using Hb decrease (with a cut-off value of 20 g/L) was 0.803, with sensitivity and specificity of 0.69 and 0.78, respectively. CONCLUSIONS Hb decrease can serve as an indicator for prediction of NEC in preterm infants with LOS.
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Dang D, Meng Z, Zhang C, Li Z, Wei J, Wu H. Heme induces intestinal epithelial cell ferroptosis via mitochondrial dysfunction in transfusion-associated necrotizing enterocolitis. FASEB J 2022; 36:e22649. [PMID: 36383399 DOI: 10.1096/fj.202200853rrr] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 10/25/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022]
Abstract
Transfusion-associated necrotising enterocolitis (TANEC) is a life-threatening disease with a poor prognosis in preterm infants. This study explored whether and how heme induces ferroptosis in TANEC gut injury. A TANEC mouse model and a cell culture system for heme and Caco-2 cells were established. Ferroptosis was assessed by measuring iron and malondialdehyde (MDA) levels and mitochondrial morphology in intestinal tissues and Caco-2 cells. Mitochondrial dysfunction was evaluated by measuring mitochondrial reactive oxygen species (ROS) production and membrane potential using JC-1. The intestinal injury grade was higher in the anemia-transfusion group than in the control group (p < .0001). Higher intestinal iron concentration (p < .0001), elevated levels of lipid peroxidation MDA (p = .0021), and ferroptotic mitochondrial morphological changes were found in mice of the anemia-transfusion group; specific ferroptosis inhibitor could alleviate anemia-transfusion gut injury, suggesting that ferroptosis play a role in the TANEC gut injury. Next, we explored whether heme released by hemolysis of erythrocytes induces ferroptosis in intestinal epithelial cells in vitro. The viability of Caco-2 cells significantly decreased after heme treatment (p < .0001). Iron accumulation, MDA elevated levels, and mitochondrial dysfunction also existed in the co-culture system, which ferroptosis inhibitors could reduce. In summary, ferroptosis was discovered in TANEC, and heme could induce ferroptosis in intestinal epithelial cells via mitochondrial dysfunction. Heme-inducing ferroptosis may be a possible mechanism and therapeutic target for TANEC.
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Affiliation(s)
- Dan Dang
- Department of Neonatology, First Hospital of Jilin University, Changchun, China
| | - Zhaoli Meng
- Department of Translational Medicine Research Institute, First Hospital of Jilin University, Changchun, China
| | - Chuan Zhang
- Department of Pediatric Surgery, First Hospital of Jilin University, Changchun, China
| | - Zhenyu Li
- Department of Neonatology, First Hospital of Jilin University, Changchun, China
| | - Jiaqi Wei
- Department of Neonatology, First Hospital of Jilin University, Changchun, China
| | - Hui Wu
- Department of Neonatology, First Hospital of Jilin University, Changchun, China
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Cai N, Liao W, Chen Z, Tao M, Chen S. A Decrease in Hb and Hypoproteinemia: Possible Predictors of Complications in Neonates with Late-Onset Sepsis in a Developing Country. Int J Gen Med 2022; 15:6583-6589. [PMID: 35991939 PMCID: PMC9384870 DOI: 10.2147/ijgm.s369550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/28/2022] [Indexed: 11/28/2022] Open
Abstract
Objective The main purpose of our study was to determine the predictors of complications in neonates with late-onset sepsis (LOS). Materials and methods This was a retrospective cohort study conducted in a neonatal intensive care unit between June 2016 and February 2020. Neonates with LOS were enrolled in this study. According to whether complications were merged after LOS, neonates were divided into a complicated group and a noncomplicated group. The demographic data, perinatal conditions, blood cell count analysis, blood cultures, hypoproteinemia within 1 week after the onset of sepsis and treatment measures were compared between the groups. Results A total of 87 neonates with LOS were enrolled in this study. Significant differences were observed between the complicated and noncomplicated groups with regard to hemoglobin (Hb), a decrease in Hb, hypoproteinemia and red blood cell transfusions (P < 0.05). Further comparison found that neonates with LOS who had moderate or severe anemia at the time of sepsis onset were more likely to have complications than those with mild or no anemia. The results of binomial stepwise logistic regression suggested that a decrease in Hb (OR=0.045, P=0.025 < 0.05) and hypoproteinemia (OR=0.266, P=0.007 < 0.05) were independent predictors of complications in neonates with LOS. A receiver operating characteristic analysis showed that the area under the curve was 0.807 for a decrease in Hb. Conclusion A decrease in Hb and hypoproteinemia were independent predictors of complications and may help to predict the occurrence of complications in neonates with LOS in the early stage.
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Affiliation(s)
- Na Cai
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, People's Republic of China
| | - Wei Liao
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, People's Republic of China
| | - Zhiqiang Chen
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, People's Republic of China
| | - Min Tao
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, People's Republic of China
| | - Sheng Chen
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, People's Republic of China
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Ibrohim IS, Pratama HA, Fauzi AR, Iskandar K, Agustriani N, Gunadi. Association between prognostic factors and the clinical deterioration of preterm neonates with necrotizing enterocolitis. Sci Rep 2022; 12:13911. [PMID: 35978027 PMCID: PMC9385610 DOI: 10.1038/s41598-022-17846-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 08/02/2022] [Indexed: 11/09/2022] Open
Abstract
Necrotizing enterocolitis (NEC) is responsible for most morbidity and mortality in neonates. Early recognition of the clinical deterioration in newborns with NEC is essential to enhance the referral and management and potentially improve the outcomes. Here, we aimed to identify the prognostic factors and associate them with the clinical deterioration of preterm neonates with NEC. We analyzed the medical records of neonates with NEC admitted to our hospital from 2016 to 2021. We ascertained 214 neonates with NEC. The area under the receiver operating characteristic (ROC) curve and cut-off level of age at onset, C-reactive protein (CRP), leukocyte count, and platelet count for the clinical deterioration of preterm neonates with NEC was 0.644 and 10.5 days old, 0.694 and 4.5 mg/L, 0.513 and 12,200/mm3, and 0.418 and 79,500/mm3, respectively. Late-onset, history of blood transfusion, thrombocytopenia, and elevated CRP were significantly associated with the clinical deterioration of neonates with NEC (p = < 0.001, 0.017, 0.001, and < 0.001, respectively), while leukocytosis, gestational age, and birth weight were not (p = 0.073, 0.274, and 0.637, respectively). Multivariate analysis revealed that late-onset and elevated CRP were strongly associated with the clinical deterioration of neonates with NEC, with an odds ratio of 3.25 (95% CI = 1.49-7.09; p = 0.003) and 3.53 (95% CI = 1.57-7.95; p = 0.002), respectively. We reveal that late-onset and elevated CRP are the independent prognostic factor for the clinical deterioration of preterm neonates with NEC. Our findings suggest that we should closely monitor preterm neonates with NEC, particularly those with late-onset of the disease and those with an elevated CRP, to prevent further clinical deterioration and intervene earlier if necessary.
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Affiliation(s)
- Ibnu Sina Ibrohim
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr, Sardjito Hospital, Yogyakarta, 55281, Indonesia
| | - Henggar Allest Pratama
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr, Sardjito Hospital, Yogyakarta, 55281, Indonesia
| | - Aditya Rifqi Fauzi
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr, Sardjito Hospital, Yogyakarta, 55281, Indonesia
| | - Kristy Iskandar
- Department of Child Health, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, UGM Academic Hospital, Yogyakarta, 55291, Indonesia
| | - Nunik Agustriani
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr, Sardjito Hospital, Yogyakarta, 55281, Indonesia
| | - Gunadi
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada/Dr, Sardjito Hospital, Yogyakarta, 55281, Indonesia.
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Burge KY, Gunasekaran A, Makoni MM, Mir AM, Burkhart HM, Chaaban H. Clinical Characteristics and Potential Pathogenesis of Cardiac Necrotizing Enterocolitis in Neonates with Congenital Heart Disease: A Narrative Review. J Clin Med 2022; 11:3987. [PMID: 35887751 PMCID: PMC9320426 DOI: 10.3390/jcm11143987] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 12/10/2022] Open
Abstract
Neonates with congenital heart disease (CHD) are at an increased risk of developing necrotizing enterocolitis (NEC), an acute inflammatory intestinal injury most commonly associated with preterm infants. The rarity of this complex disease, termed cardiac NEC, has resulted in a dearth of information on its pathophysiology. However, a higher incidence in term infants, effects on more distal regions of the intestine, and potentially a differential immune response may distinguish cardiac NEC as a distinct condition from the more common preterm, classical NEC. In this review, risk factors, differentiated from those of classical NEC, are discussed according to their potential contribution to the disease process, and a general pathogenesis is postulated for cardiac NEC. Additionally, biomarkers specific to cardiac NEC, clinical outcomes, and strategies for achieving enteral feeds are discussed. Working towards an understanding of the mechanisms underlying cardiac NEC may aid in future diagnosis of the condition and provide potential therapeutic targets.
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Affiliation(s)
- Kathryn Y. Burge
- Department of Pediatrics, Division of Neonatology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (K.Y.B.); (A.G.); (M.M.M.)
| | - Aarthi Gunasekaran
- Department of Pediatrics, Division of Neonatology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (K.Y.B.); (A.G.); (M.M.M.)
| | - Marjorie M. Makoni
- Department of Pediatrics, Division of Neonatology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (K.Y.B.); (A.G.); (M.M.M.)
| | - Arshid M. Mir
- Department of Pediatrics, Division of Cardiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Harold M. Burkhart
- Department of Surgery, Division of Cardiovascular and Thoracic Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Hala Chaaban
- Department of Pediatrics, Division of Neonatology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (K.Y.B.); (A.G.); (M.M.M.)
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Zheng X, Li Y, Cheng Q, Wang L. Predictive Value of Ionized Calcium for Prognosis of Sepsis in Very Low Birth Weight Infants. J Inflamm Res 2022; 15:3749-3760. [PMID: 35799618 PMCID: PMC9255904 DOI: 10.2147/jir.s369431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Previous studies have shown that ionized calcium (iCa) is strongly correlated with critical illnesses, including sepsis. However, there are few studies on the association of iCa levels and sepsis in very low birth weight infants (VLBWI). Therefore, the aim of this study was to investigate the role of iCa in assessing the severity of sepsis and in predicting the prognosis of sepsis in VLBWI. Patients and Methods 249 eligible VLBWI with sepsis were included in the present study and were divided into good and poor prognosis groups according to prognosis. We collected complete laboratory and clinical data. The lowest iCa measured during the first 24h from sepsis onset was recorded, and the Pediatric Risk of Mortality (PRISM III) score was calculated for each newborn. Results Neonatal mortality was higher in the hypocalcemia group (32.80% vs 12.80%, P < 0.001), and iCa levels were negatively correlated with PRISM III scores (r= −0.819, P < 0.001). The result of multiple logistic regression analysis showed that iCa was an independent predictor of poor prognosis (odds ratio [OR]= 0.558, 95% confidence interval [CI], 0.406–0.768, P < 0.001). Furthermore, our data demonstrated that iCa was also an independent predictor for the occurrence of death in VLBWI with sepsis who have a poor prognosis (OR= 0.659, 95% CI, 0.445–0.977, P =0.038). ROC curve analysis showed that iCa had good discriminatory power in predicting the poor prognosis (AUC=0.739, 95% CI, 0.664–0.813, P <0.001) in VLBWI with sepsis. Conclusion iCa levels correlate with the severity of sepsis and can be an independent predictor of poor prognosis in VLBWI with sepsis.
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Affiliation(s)
- Xuejie Zheng
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Yuanzhi Li
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Qiyuan Cheng
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Lili Wang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
- Correspondence: Lili Wang, Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China, Tel +86 13075578390, Email
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Karila K, Koivusalo A. The Outcome of Blood Transfusions in Conservative and Surgical Necrotizing Enterocolitis and Spontaneous Intestinal Perforation. Eur J Pediatr Surg 2022; 32:251-257. [PMID: 33378779 DOI: 10.1055/s-0040-1721769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION In necrotizing enterocolitis (NEC), blood transfusions (BTs) are a disputed factor concerning the etiology and the outcome. We assessed retrospectively the effects of preonset BT on the outcome of NEC and spontaneous intestinal perforation (SIP). MATERIALS AND METHODS With ethical consent, we reviewed the hospital records of 113 neonates from 2002 to 2019 with surgical NEC (NECs) (n = 57), conservatively treated NEC (NECc) (n = 20), and SIP (n = 36). The onset was defined as the day of surgery (NECs and SIP) or diagnosis (NECc). The effects of preonset BT (total, beyond 48 hours, and within 48 hours) were compared with the effects of birth weight (BW), gestational age (GA), intracerebral hemorrhage, respiratory distress syndrome, septicemia, and patent ductus arteriosus. Main outcome measure was 2-week mortality, and secondary measures were small intestinal loss and days on parenteral nutrition (PN). RESULTS Overall mortality (8.9%) was predicted independently by BT total and BT beyond 48 hours, risk ratio (RR) = 1.1 to 1.2 (95% confidence interval [CI] = 1.0-1.4), p = 0.01 to 0.02, and BW and GA, RR = 0.7 to 1.0 (95% CI = 0.5-1.0), p = 0.02 to 0.04. Mortality in NECs (12%) was predicted by BT total and BT beyond 48 hours only, RR = 1.1 to 1.2 (95% CI = 1.0-1.5), p = 0.03 to 0.04. BT within 48 hours of onset did not predict mortality. No factors were related with secondary outcome measures or with mortality in patients with SIP or NECc. CONCLUSION In NECs, preoperative BT and BT given more than 48 hours before surgery were correlated with slightly increased 2-week mortality but not with small intestinal loss or duration of PN.
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Affiliation(s)
- Kristiina Karila
- Department of Pediatric Surgery, Children's Hospital, Helsinki, Finland
| | - Antti Koivusalo
- Department of Pediatric Surgery, Children's Hospital, Helsinki, Finland
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Fuchs A, Disma N, Virág K, Ulmer F, Habre W, de Graaff JC, Riva T. Peri-operative red blood cell transfusion in neonates and infants: NEonate and Children audiT of Anaesthesia pRactice IN Europe: A prospective European multicentre observational study. Eur J Anaesthesiol 2022; 39:252-260. [PMID: 34845167 PMCID: PMC8815837 DOI: 10.1097/eja.0000000000001646] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Little is known about current clinical practice concerning peri-operative red blood cell transfusion in neonates and small infants. Guidelines suggest transfusions based on haemoglobin thresholds ranging from 8.5 to 12 g dl-1, distinguishing between children from birth to day 7 (week 1), from day 8 to day 14 (week 2) or from day 15 (≥week 3) onwards. OBJECTIVE To observe peri-operative red blood cell transfusion practice according to guidelines in relation to patient outcome. DESIGN A multicentre observational study. SETTING The NEonate-Children sTudy of Anaesthesia pRactice IN Europe (NECTARINE) trial recruited patients up to 60 weeks' postmenstrual age undergoing anaesthesia for surgical or diagnostic procedures from 165 centres in 31 European countries between March 2016 and January 2017. PATIENTS The data included 5609 patients undergoing 6542 procedures. Inclusion criteria was a peri-operative red blood cell transfusion. MAIN OUTCOME MEASURES The primary endpoint was the haemoglobin level triggering a transfusion for neonates in week 1, week 2 and week 3. Secondary endpoints were transfusion volumes, 'delta haemoglobin' (preprocedure - transfusion-triggering) and 30-day and 90-day morbidity and mortality. RESULTS Peri-operative red blood cell transfusions were recorded during 447 procedures (6.9%). The median haemoglobin levels triggering a transfusion were 9.6 [IQR 8.7 to 10.9] g dl-1 for neonates in week 1, 9.6 [7.7 to 10.4] g dl-1 in week 2 and 8.0 [7.3 to 9.0] g dl-1 in week 3. The median transfusion volume was 17.1 [11.1 to 26.4] ml kg-1 with a median delta haemoglobin of 1.8 [0.0 to 3.6] g dl-1. Thirty-day morbidity was 47.8% with an overall mortality of 11.3%. CONCLUSIONS Results indicate lower transfusion-triggering haemoglobin thresholds in clinical practice than suggested by current guidelines. The high morbidity and mortality of this NECTARINE sub-cohort calls for investigative action and evidence-based guidelines addressing peri-operative red blood cell transfusions strategies. TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT02350348.
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Affiliation(s)
- Alexander Fuchs
- From the Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland (AF, TR), Unit for Research & Innovation in Anaesthesia, Department of Paediatric Anaesthesia, Istituto Giannina Gaslini, Genoa, Italy (ND, TR), Unit for Anaesthesiological Investigations, Department of Anaesthesiology, Pharmacology, Intensive Care, and Emergency Medicine, Geneva University Hospitals, University of Geneva, Geneva (KV, WH), Department of Paediatrics, Section of Critical Care, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland (FU), and Department of Anaesthesiology, Erasmus MC-Sophia Children's Hospital, University Medical Centre, Rotterdam, The Netherlands (JCdG)
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Kalteren WS, Bos AF, Bergman KA, van Oeveren W, Hulscher JBF, Kooi EMW. The short-term effects of RBC transfusions on intestinal injury in preterm infants. Pediatr Res 2022; 93:1307-1313. [PMID: 35115712 PMCID: PMC8813571 DOI: 10.1038/s41390-022-01961-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Anemic preterm infants may require red blood cell (RBC) transfusions to maintain sufficient oxygen supply to vital organs. Transfusion treatment, however, may have adverse intestinal effects. We aimed to investigate the short-term effects of RBC transfusions, hypothesizing to find signs of oxidative stress and intestinal injury, possibly related to levels of splanchnic (re-)oxygenation. METHODS We prospectively included preterm infants (gestational age < 32 weeks). We measured urinary biomarkers for oxidative stress (8-isoprostane) and intestinal cell injury (intestinal fatty acid-binding protein, I-FABP) shortly before and after RBC transfusion. Splanchnic oxygen saturation (rsSO2) and rsSO2 variability were assessed simultaneously. RESULTS Twenty-nine preterm infants received 58 RBC transfusions at various postnatal ages. Six of them developed necrotizing enterocolitis (NEC) after transfusion. Urinary 8-isoprostane and I-FABP increased following RBC transfusion (median 282-606 pg/ml and 4732-6968 pg/ml, p < 0.01), more pronounced in infants who developed NEC. Change in I-FABP correlated with change in 8-isoprostane (rho = 0.623, p < 0.01). Lower rsSO2 variability, but not higher mean rsSO2 was associated with higher 8-isoprostane and I-FABP levels after transfusion. CONCLUSIONS Preterm RBC transfusions are associated with concomitant signs of oxidative stress and intestinal injury, parallel with lower variability in splanchnic oxygenation. This may represent the early pathogenetic process of transfusion-associated NEC. IMPACT Red blood cell (RBC) transfusions in preterm infants are associated with a near 2-fold increase in urinary biomarkers for oxidative stress (8-isoprostane) and intestinal cell injury (intestinal fatty acid-binding protein, I-FABP). Magnitude of change in I-FABP strongly correlated with the magnitude of 8-isoprostane change, suggesting a role for oxidative stress in the pathogenesis of intestinal injury. Lower splanchnic oxygen saturation variability following RBC transfusion was associated with higher 8-isoprostane and I-FABP levels. Loss of splanchnic variability after RBC transfusion may result from increased oxidative stress and its concomitant intestinal injury, possibly representing the early pathogenetic process of transfusion-associated necrotizing enterocolitis.
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Affiliation(s)
- Willemien S. Kalteren
- grid.4830.f0000 0004 0407 1981Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arend F. Bos
- grid.4830.f0000 0004 0407 1981Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Klasien A. Bergman
- grid.4830.f0000 0004 0407 1981Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - Jan B. F. Hulscher
- grid.4494.d0000 0000 9558 4598Division of Pediatric Surgery, Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Elisabeth M. W. Kooi
- grid.4830.f0000 0004 0407 1981Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Kalteren WS, Bos AF, van Oeveren W, Hulscher JBF, Kooi EMW. Neonatal anemia relates to intestinal injury in preterm infants. Pediatr Res 2022; 91:1452-1458. [PMID: 34907357 PMCID: PMC8670618 DOI: 10.1038/s41390-021-01903-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/03/2021] [Accepted: 11/26/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Anemia is associated with decreased tissue oxygenation in preterm infants and may contribute to developing necrotizing enterocolitis (NEC). We aimed to investigate whether hemoglobin level is associated with intestinal injury, by comparing anemic infants 10 days prior to red blood cell (RBC) transfusion with non-anemic controls. METHODS A nested case-control study in which we matched anemic preterms (gestational age (GA) < 32 weeks) with non-anemic controls (1:1), based on GA, birth weight (BW), and postnatal age. We measured urinary intestinal fatty acid-binding protein, I-FABP, marker for intestinal injury, twice weekly. Simultaneously, we assessed splanchnic oxygen saturation (rsSO2) and rsSO2 variability. RESULTS Thirty-six cases and 36 controls were included (median GA 27.6 weeks, BW 1020 grams). Median I-FABP level was higher in cases from 6 days to 24-h before transfusion (median ranging: 4749-8064 pg/ml versus 2194-3751 pg/ml). RsSO2 and rsSO2 variability were lower in cases than controls shortly before transfusion. Hemoglobin levels correlated negatively with rsSO2 and rsSO2 variability in cases, and negatively with I-FABP in cases and controls together. CONCLUSIONS Urinary I-FABP levels were higher in anemic infants before RBC transfusion than in non-anemic matched controls, suggesting intestinal injury associated with anemia. This may predispose to NEC in some anemic preterm infants. IMPACT Anemia is a common comorbidity in preterm infants and may lead to impaired splanchnic oxygen saturation and intestinal tissue hypoxia, a proposed mechanism for NEC. Lower hemoglobin level is associated with higher urinary I-FABP levels, a marker for intestinal injury, both in anemic preterm infants and in cases and controls together. Lower splanchnic oxygen saturation and reduction of its variability are associated with higher urinary I-FABP levels in anemic preterm infants before their first RBC transfusion. These results support the hypothesis that anemia in very preterm infants results in intestinal cell injury, which may precede NEC development in some.
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Affiliation(s)
- Willemien S. Kalteren
- grid.4494.d0000 0000 9558 4598Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Arend F. Bos
- grid.4494.d0000 0000 9558 4598Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Jan B. F. Hulscher
- grid.4494.d0000 0000 9558 4598Division of Pediatric Surgery, Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Elisabeth M. W. Kooi
- grid.4494.d0000 0000 9558 4598Division of Neonatology, Department of Pediatrics, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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12
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Feeding Strategies in Preterm Very Low Birth-Weight Infants: State-of-the-Science Review. Adv Neonatal Care 2021; 21:493-502. [PMID: 33675303 DOI: 10.1097/anc.0000000000000849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Providing enteral feeds to preterm very low birth-weight (VLBW) infants is critical to optimize nutrition, enhance growth, and reduce complications. Protocols guiding feeding practices can improve outcomes, but significant variation exists between institutions, which may limit their utility. To be most effective, protocols should be based on the best available evidence. PURPOSE To examine the state of the science on several key components of feeding protocols for VLBW infants. SEARCH STRATEGY The authors searched PubMed, CINAHL, and EMBASE databases for terms related to feeding VLBW infants less than 32 weeks' gestational age, including initiation of feedings, rate of feeding advancement, timing of human milk (HM) fortification, and feeding during blood transfusions, when diagnosed with a patent ductus arteriosus (PDA) and during medical treatment of PDA closure. RESULTS Initiation of feeds within the first 3 days of life and advancement by 30 mL/kg/d may decrease time to attain full feeds without increasing complications. Insufficient evidence guides optimal timing of HM fortification, as well as feeding infants undergoing blood transfusions, infants diagnosed with a PDA, and infants receiving medical treatment of PDA closure. IMPLICATIONS FOR PRACTICE Integration of existing research regarding feeding initiation and advancement into feeding protocols may improve outcomes. Infants at highest risk of feeding-related complications may benefit from a personalized feeding approach. IMPLICATIONS FOR RESEARCH Additional research is needed to provide evidence concerning the optimal timing of HM fortification and feeding strategies for infants undergoing blood transfusions and those diagnosed with a PDA or receiving medical treatment of PDA closure to incorporate into evidence-based feeding protocols.
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Jassem-Bobowicz JM, Klasa-Mazurkiewicz D, Żawrocki A, Stefańska K, Domżalska-Popadiuk I, Kwiatkowski S, Preis K. Prediction Model for Bronchopulmonary Dysplasia in Preterm Newborns. CHILDREN-BASEL 2021; 8:children8100886. [PMID: 34682151 PMCID: PMC8534367 DOI: 10.3390/children8100886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE: To develop a multifactorial model that allows the prediction of bronchopulmonary dysplasia (BPD) in preterm newborns. MATERIALS AND METHODS: A single-center retrospective study of infants born below 32 + 0 weeks gestational age. We created a receiver operating characteristic curve to assess the multifactorial BPD risk and calculate the BPD risk accuracy using the area under the curve (AUC). BPD risk was categorized using a multifactorial predictive model based on the weight of the evidence. RESULTS: Of the 278 analyzed preterm newborns, 127 (46%) developed BPD. The significant risk factors for BPD in the multivariate analysis were gestational age, number of red blood cell concentrate transfusions, number of surfactant administrations, and hemodynamically significant patent ductus arteriosus. The combination of these factors determined the risk of developing BPD, with an AUC value of 0.932. A multifactorial predictive model based on these factors, weighted by their odds ratios, identified four categories of newborns with mean BPD risks of 9%, 59%, 82%, and 100%. CONCLUSION: A multifactorial model based on easily available clinical factors can predict BPD risk in preterm newborns and inform potential preventive measures.
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Affiliation(s)
- Joanna Maria Jassem-Bobowicz
- Department of Neonatology, Medical University of Gdańsk, 80-214 Gdańsk, Poland;
- Correspondence: ; Tel.: +48-58-584-41-48
| | - Dagmara Klasa-Mazurkiewicz
- Department of Gynaecology and Oncological Gynaecology, Medical University of Gdańsk, 80-214 Gdańsk, Poland;
| | - Anton Żawrocki
- Department of Pathology, Specialist Hospital in Wejherowo, 84-200 Wejherowo, Poland;
| | - Katarzyna Stefańska
- Department of Obstetrics, Medical University of Gdańsk, 80-214 Gdańsk, Poland; (K.S.); (K.P.)
| | | | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University of Szczecin, 70-111 Szczecin, Poland;
| | - Krzysztof Preis
- Department of Obstetrics, Medical University of Gdańsk, 80-214 Gdańsk, Poland; (K.S.); (K.P.)
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14
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Feeding Practices and Effects on Transfusion-Associated Necrotizing Enterocolitis in Premature Neonates. Adv Neonatal Care 2021; 21:356-364. [PMID: 33938478 DOI: 10.1097/anc.0000000000000872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Red blood cell (RBC) transfusions have been implicated in the development of necrotizing enterocolitis (NEC) in premature infants. Some evidence exists to support that withholding feedings during transfusion reduces the risk of subsequent NEC development. PURPOSE To review the most recent literature on this topic to determine best evidence-based practice regarding withholding or not withholding feedings during RBC transfusions. METHODS/SEARCH STRATEGY Four databases were searched using keywords and MeSH terms including "necrotizing enterocolitis," "NEC," "NPO," and "transfusion," with specifications limiting the search to articles published in the last 10 years and limiting the population to neonates. FINDINGS Four studies did not demonstrate a reduction in transfusion-associated necrotizing enterocolitis (TANEC) with the implementation of feeding protocols during packed red blood cell (PRBC) transfusions. One study concluded that it could not confirm the benefit of withholding feeds during transfusion to reduce the risk of TANEC. A 2020 randomized controlled trial (RCT) found no difference in splanchnic oxygenation when enteral feeds are withheld, continued, or restricted during a PRBC transfusion. Holding feedings during PRBC transfusions did not result in adverse nutritional outcomes. IMPLICATIONS FOR PRACTICE To determine best evidence-based practice surrounding feeding protocols during RBC transfusions in very low-birth-weight and premature infants less than 37 weeks' gestation. IMPLICATIONS FOR RESEARCH It is recommended that large, multicentered, adequately powered RCTs be conducted in this area. Individual institutions should standardize their practice to improve quality, safety, and patient outcomes.
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15
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Song J, Dong H, Xu F, Wang Y, Li W, Jue Z, Wei L, Yue Y, Zhu C. The association of severe anemia, red blood cell transfusion and necrotizing enterocolitis in neonates. PLoS One 2021; 16:e0254810. [PMID: 34283868 PMCID: PMC8291682 DOI: 10.1371/journal.pone.0254810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
Background The relationship between severe anemia, red blood cell transfusion and Neonatal necrotizing enterocolitis (NEC) remains controversial. The purpose of this study was to determine the association of severe anemia and RBC transfusion with NEC in neonates. Methods The clinical characteristics of NEC were observed in 467 infants with different birth weights from January 2012 to July 2020. A 1:1 ratio case-control study was performed in very low birth weight (VLBW) infants. Severe anemia, RBC transfusion, and confounding factors, including maternal and perinatal complications, feeding, and antibiotics administration were collected in both groups. Univariate and multivariate analyses were used to investigate effects on the risk of NEC. Results The day of NEC onset and mortality were inversely associated with birth weight. In VLBW infants, adjusting for other factors, severe anemia within 72 h [OR = 2.404, P = 0.016], RBC transfusion within 24 h [OR = 4.905, P = 0.016], within 48 h [OR = 5.587, P = 0.008], and within 72 h [OR = 2.858, P = 0.011] increased the risk of NEC. Conclusion Both severe anemia and RBC transfusion appears to increase the risk of NEC in VLBW infants. The early prevention and treatment of anemia, strict evaluation of the indications for transfusion and enhanced monitoring after transfusion is encouraged in the NICU.
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Affiliation(s)
- Juan Song
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
- * E-mail: (JS); (CZ)
| | - Huimin Dong
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Falin Xu
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Yong Wang
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Wendong Li
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Zhenzhen Jue
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Lele Wei
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Yuyang Yue
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
| | - Changlian Zhu
- Department of Neonatology, Henan Key Laboratory of Child Brain Injury and Henan Pediatrics Clinical Research Center, Third Affiliated Hospital and Institute of Neuroscience, Zhengzhou University, Zhengzhou, China
- Center for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (JS); (CZ)
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16
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Wang ZL, An Y, He Y, Hu XY, Guo L, Li QY, Liu L, Li LQ. Risk factors of necrotizing enterocolitis in neonates with sepsis: A retrospective case-control study. Int J Immunopathol Pharmacol 2021; 34:2058738420963818. [PMID: 33016797 PMCID: PMC7543139 DOI: 10.1177/2058738420963818] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Sepsis, a severe infectious disease in the neonatal period, is considered a risk factor for necrotizing enterocolitis (NEC). To investigate the specific risk factors for NEC in septic infants, septic infants admitted to our center from January 2010 to April 2018 were included. Septic neonates with proven NEC (Bell's stage ⩾II) were enrolled in the NEC group, and those without NEC were enrolled in the control group. Demographics, clinical characteristics, and risk factors were compared between the two groups. Univariate and logistic regression analyses were used to evaluate the potential risk factors for NEC. A total of 610 septic neonates were included, of whom 78 (12.8%) had complicated NEC. The univariate analysis indicated that infants with NEC had a lower birth weight, a lower gestational age, and older age on admission than those without NEC (P < 0.05). Higher rates of anemia, prolonged rupture of membranes (PROM) (⩾18 h), pregnancy-induced hypertension, late-onset sepsis (LOS), red blood cell transfusion and hypoalbuminemia were observed in the NEC group than in the non-NEC group (P<0.05). Logistic regression analysis revealed LOS (P = 0.000), red blood cell transfusion (P = 0.001) and hypoalbuminemia (P = 0.001) were associated with the development of NEC. Among NEC infants, those who needed red blood cell transfusion had a longer hospitalization duration than those who did not need transfusion (P < 0.05). LOS, red blood cell transfusion and hypoalbuminemia were independent risk factors for the development of NEC in infants with sepsis. Taking measures to reduce the occurrence of hypoproteinemia and severe anemia may help to reduce the occurrence of NEC in septic neonates.
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Affiliation(s)
- Zheng-Li Wang
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Yao An
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Yu He
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Xiao-Yu Hu
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Lu Guo
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Qiu-Yu Li
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Li Liu
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Lu-Quan Li
- Neonatal Diagnosis and Treatment Center, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
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17
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Cai N, Fan W, Tao M, Liao W. A significant decrease in hemoglobin concentrations may predict occurrence of necrotizing enterocolitis in preterm infants with late-onset sepsis. J Int Med Res 2021; 48:300060520952275. [PMID: 32962507 PMCID: PMC7518009 DOI: 10.1177/0300060520952275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE This study aimed to examine the clinical value of a decrease in hemoglobin concentration (HC) after the onset of sepsis for predicting occurrence of necrotizing enterocolitis (NEC) in preterm infants with late-onset sepsis. METHODS We performed a retrospective cohort study between January 2015 and January 2020. Premature neonates (gestational age <37 weeks) with late-onset sepsis (age >3 days) were enrolled. According to the degree of reduction in HC, neonates were divided into the non-decrease group, mild decrease group, and severe decrease group. Demographic data, perinatal conditions, blood cell count analysis, blood culture, and treatment measures were compared. RESULTS Eighty premature infants with sepsis were studied. The mortality rate and incidence of NEC were significantly higher in the severe decrease group than in the non-decrease and mild decrease groups. Significant differences were observed in the decrease in HC, red blood cell transfusion, and ventilator application between the NEC and non-NEC groups. A significant decrease in HC was an independent risk factor for NEC in preterm infants with sepsis. CONCLUSION A significant decrease in HC is an independent risk factor for NEC and may predict the occurrence of NEC in preterm infants with sepsis.
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Affiliation(s)
- Na Cai
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - Wenting Fan
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - Min Tao
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - Wei Liao
- Department of Pediatrics, The First Hospital Affiliated to Army Medical University, Chongqing, China
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18
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Stokes V, Rajai A, Mukherjee D, Mukherjee A. Transfusion-associated necrotizing enterocolitis (NEC) in extremely preterm infants: experience of a tertiary neonatal center in UK. J Matern Fetal Neonatal Med 2021; 35:5054-5059. [PMID: 33472464 DOI: 10.1080/14767058.2021.1874910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To compare the characteristics and short-term outcomes in extremely preterm infants, who developed necrotizing enterocolitis (NEC) following a packed red blood cell transfusion (pRBC) within 48 h (TANEC), with those who developed NEC beyond 48 h (non-TANEC). SETTING A single-center retrospective cohort study in a Tertiary neonatal intensive care unit in the UK over a 5-year period. PATIENTS AND METHODS Extremely premature infants (23-27 weeks gestation) were selected. TANEC and non-TANEC incidence were calculated from the confirmed NEC group (defined as modified Bell's stage II and beyond). The characteristics and short-term outcomes of infants with TANEC in the first 8 weeks of life were compared to infants with non-TANEC. RESULTS AND INTERPRETATION Incidence of confirmed NEC was 14% (28/207). On further subgroup analysis of the confirmed NEC cases, 46% (13/28) of infants were identified with TANEC and 54% (15/28) with non-TANEC. The incidence of TANEC did not correlate with the number of antecedent pRBC transfusions or the pre-transfusion median hemoglobin (Hb) levels. There were no significant differences in characteristics between the TANEC and non-TANEC groups. Infants within the TANEC group required more intensive neonatal care support, greater surgical intervention (p-value 0.043) with loss of gut integrity and an increase in number of TPN dependency days (p-value 0.014). CONCLUSIONS A significantly worse clinical course and short-term outcome was observed in the TANEC group when compared with the non-TANEC group.
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Affiliation(s)
| | - Azita Rajai
- Centre for Biostatistics, Division of Population Health, University of Manchester, Manchester Academic Health Science Centre, Research and Innovation, Manchester University NHS Foundation Trust, Manchester, UK
| | - Devdeep Mukherjee
- Department of Neonatology, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Arindam Mukherjee
- Consultant Neonatologist, Honorary Senior Lecturer (University of Manchester), St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
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Chandran S, Anand AJ, Rajadurai VS, Seyed ES, Khoo PC, Chua MC. Evidence-Based Practices Reduce Necrotizing Enterocolitis and Improve Nutrition Outcomes in Very Low-Birth-Weight Infants. JPEN J Parenter Enteral Nutr 2020; 45:1408-1416. [PMID: 33296087 DOI: 10.1002/jpen.2058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/25/2020] [Accepted: 12/02/2020] [Indexed: 01/12/2023]
Abstract
BACKGROUND Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in preterm infants. Survivors may suffer both short- and long-term morbidities. Current evidence suggests that the incidence of NEC can be reduced by standardizing the care delivery in addressing key risk factors including an altered gut microbiome, use of formula milk, hyperosmolar feeds, and unrestricted use of high-risk medications METHODS: Since 2014, the department has a workgroup who analyzed all cases of NEC within a month of diagnosis to identify preventable risk factors. Existing evidence-based quality improvement strategies were revised and new ones were implemented sequentially over the next 4 years. These strategies include (1) a standardized feeding protocol, (2) early initiation of enteral feeding using human milk, (3) optimization of the osmolality of preterm milk feeds using standardized dilution guidelines for additives, and (4) promotion of healthy microbiome by use of probiotics, early oral care with colostrum and by restricting high-risk medications and prolonged use of empirical antibiotics RESULTS: Baseline characteristics of the patients including sex, gestational age, and birth weight were similar during the study period. After implementing the evidence-based practices successively over 4 years, the incidence of NEC in very- low birth-weight (VLBW) infants dropped from 7% in 2014 to 0% (P < .001) in 2018. The duration of parenteral nutrition, use of central line, and days to full feeds were also reduced significantly (P < .05) CONCLUSION: Adopting evidence-based best practices resulted in a significant decrease in the incidence of NEC and improved the nutrition outcomes in VLBW infants.
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Affiliation(s)
- Suresh Chandran
- Department of Neonatology, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore
| | - Amudha Jayanthi Anand
- Department of Neonatology, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore
| | - Victor Samuel Rajadurai
- Department of Neonatology, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore
| | - Ehsan Saffari Seyed
- Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore.,Center for Quantitative Medicine, Office of Clinical Science, Duke University-National University of Singapore Medical School, Singapore
| | - Poh Choo Khoo
- Department of Neonatology, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore
| | - Mei Chien Chua
- Department of Neonatology, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technical University, Singapore
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20
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Abstract
The 2019 Necrotizing Enterocolitis (NEC) Symposium expanded upon the NEC Society's goals of bringing stakeholders together to discuss cutting-edge science, potential therapeutics and preventative measures, as well as the patient-family perspectives of NEC. The Symposium facilitated discussions and shared knowledge with the overarching goal of creating "A World Without NEC." To accomplish this goal, new research to advance the state of the science is necessary. Over the last decade, several established investigators have significantly improved our understanding of the pathophysiology of NEC and they have paved the way for the next generation of clinician-scientists funded to perform NEC research. This article will serve to highlight the contributions of these young clinician-scientists that seek to elucidate how immune, microbial and nervous system dysregulation contributes to the pathophysiology of NEC.
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21
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Benavides A, Conrad AL, Brumbaugh JE, Magnotta V, Bell EF, Nopoulos P. Long-term outcome of brain structure in female preterm infants: possible associations of liberal versus restrictive red blood cell transfusions. J Matern Fetal Neonatal Med 2019; 34:3292-3299. [PMID: 31722594 DOI: 10.1080/14767058.2019.1683157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Preterm infants who receive differential red blood cell (RBC) transfusions at birth may show brain structure differences across development, including abnormalities in white matter (WM) structure and organization. This study investigated long-term outcomes of brain structure in female infants born preterm, at an average age of 13 years old, who received red blood cell (RBC) transfusions in the neonatal period according to a liberal or restrictive approach. Results from this study will increase understanding of the effects of transfusion on the developing brain. STUDY DESIGN AND METHODS This follow-up study included female preterm infants who participated in a clinical trial and had been randomized at birth to either a liberal or restrictive hematocrit threshold. Brain structures were measured in childhood using structural magnetic resonance imaging (MRI) scans. Due to the low number of females in the restrictive transfusion group at follow-up, additional females were recruited for inclusion. Main outcome measures included cerebral and subcortical brain region volumes. RESULTS Total intracranial volume was significantly decreased in females who were randomized to higher average hematocrit levels at birth. Infants in the liberal transfusion group had proportionately smaller volumes in all measures of regional cerebral WM and subcortical brain volumes, reaching significance for temporal lobe WM and caudate volumes. CONCLUSION Female premature infants who received a liberal transfusion threshold at birth had decreased WM volumes, which suggests the potential long-term neurodevelopmental risks associated with liberal transfusion practices.
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Affiliation(s)
- Amanda Benavides
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Amy L Conrad
- University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | - Jane E Brumbaugh
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Edward F Bell
- University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | - Peggy Nopoulos
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
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Gale C, Modi N, Jawad S, Culshaw L, Dorling J, Bowler U, Forster A, King A, McLeish J, Linsell L, Turner MA, Robberts H, Stanbury K, van Staa T, Juszczak E. The WHEAT pilot trial-WithHolding Enteral feeds Around packed red cell Transfusion to prevent necrotising enterocolitis in preterm neonates: a multicentre, electronic patient record (EPR), randomised controlled point-of-care pilot trial. BMJ Open 2019; 9:e033543. [PMID: 31542771 PMCID: PMC6756449 DOI: 10.1136/bmjopen-2019-033543] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION Necrotising enterocolitis (NEC) is a potentially devastating neonatal disease. A temporal association between red cell transfusion and NEC is well described. Observational data suggest that withholding enteral feeds around red cell transfusions may reduce the risk of NEC but this has not been tested in randomised trials; current UK practice varies. Prevention of NEC is a research priority but no appropriately powered trials have addressed this question. The use of a simplified opt-out consent model and embedding trial processes within existing electronic patient record (EPR) systems provide opportunities to increase trial efficiency and recruitment. METHODS AND ANALYSIS We will undertake a randomised, controlled, multicentre, unblinded, pilot trial comparing two care pathways: continuing milk feeds (before, during and after red cell transfusions) and withholding milk feeds (for 4 hours before, during and for 4 hours after red cell transfusions), with infants randomly assigned with equal probability. We will use opt-out consent. A nested qualitative study will explore parent and health professional views. Infants will be eligible if born at <30+0 gestational weeks+days. Primary feasibility outcomes will be rate of recruitment, opt-out, retention, compliance, data completeness and data accuracy; clinical outcomes will include mortality and NEC. The trial will recruit in two neonatal networks in England for 9 months. Data collection will continue until all infants have reached 40+0 corrected gestational weeks or neonatal discharge. Participant identification and recruitment, randomisation and all trial data collection will be embedded within existing neonatal EPR systems (BadgerNet and BadgerEPR); outcome data will be extracted from routinely recorded data held in the National Neonatal Research Database. ETHICS AND DISSEMINATION This study holds Research Ethics Committee approval to use an opt-out approach to consent. Results will inform future EPR-embedded and data-enabled trials and will be disseminated through conferences, publications and parent-centred information. TRIAL REGISTRATION NUMBER ISRCTN registry ISRCTN62501859; Pre-results.
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Affiliation(s)
- Chris Gale
- Neonatal Medicine, School of Public Health, Chelsea and Westminster campus, Imperial College London, London, UK
| | - Neena Modi
- Neonatal Medicine, School of Public Health, Chelsea and Westminster campus, Imperial College London, London, UK
| | - Sena Jawad
- Neonatal Medicine, School of Public Health, Chelsea and Westminster campus, Imperial College London, London, UK
| | - Lucy Culshaw
- Bliss - The National Charity for the Newborn, London, UK
| | - Jon Dorling
- Division of Neonatal-Perinatal Medicine, Faculty of Medicine, Dalhousie University, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Ursula Bowler
- Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
| | - Amanda Forster
- Neonatal Unit, James Cook University Hospital, Middlesbrough, UK
| | - Andy King
- Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
| | - Jenny McLeish
- Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
| | - Louise Linsell
- Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
| | - Mark A Turner
- Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Helen Robberts
- Parent of Preterm Twins, Bliss - The National Charity for the Newborn, London, UK
| | - Kayleigh Stanbury
- Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
| | - Tjeerd van Staa
- Centre for Health Informatics, Division of Informatics, Imaging and Data Science, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Ed Juszczak
- Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, National Perinatal Epidemiology Unit, Oxford, UK
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ABO blood group and procoagulant factors: the hypercoagulation hypothesis ABO and Procoagulant Factors. Pediatr Res 2019; 86:316-322. [PMID: 31158844 DOI: 10.1038/s41390-019-0445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/18/2019] [Accepted: 05/18/2019] [Indexed: 11/08/2022]
Abstract
BACKGROUND The correlation between procoagulant levels-factor VIII (FVIII), von Willebrand factor (vWF), and fibrinogen-and risk of thrombosis has been well documented in adult populations. We hypothesize that interaction of passively transferred isoagglutinins in premature neonates with a compromised immune system may trigger an immune response that can target the immature gastrointestinal tract. The objective of this study is to evaluate if there are procoagulant level differences in preterm newborns stratified by ABO blood group. METHODS VWF, FVIII, and fibrinogen levels were analyzed in neonates ≤32 weeks and/or birthweight ≤1500 g over the first 6 weeks of life. Demographic, blood type, and transfusion data were collected. RESULTS Elevations in vWF and FVIII were found to be statistically significant in the third week of life in non-O neonates vs. type O neonates. FVIII was also found to be significantly elevated in week 1. Transfused neonates also showed elevations between weeks 0 and 3. CONCLUSION There appears to be a time-dependent variation in procoagulant factor levels in preterm newborns. Although the clinical significance remains unclear, prothrombotic factors vWF and FVIII are significantly higher in non-O blood-type preterm neonates in the third week of life.
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New insights into necrotizing enterocolitis: From laboratory observation to personalized prevention and treatment. J Pediatr Surg 2019; 54:398-404. [PMID: 29980346 PMCID: PMC6344311 DOI: 10.1016/j.jpedsurg.2018.06.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/21/2018] [Accepted: 06/03/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND/PURPOSE Necrotizing enterocolitis (NEC) is a devastating disease of prematurity that develops after feeding, often without warning, and results in diffuse intestinal necrosis leading to sepsis and death in many cases. The lack of improvement in overall survival is influenced by nonspecific diagnostic modalities as well as inexact and nonpersonalized treatment strategies. METHODS/RESULTS Recently, we and others have shown that NEC develops in response to exaggerated bacterial signaling in the premature intestine, as a consequence of elevated expression and activity of the bacterial receptor toll-like receptor 4 (TLR4), which is important for normal gut development. Breast milk is a powerful TLR4 inhibitor, while mutations in TLR4 genes lead to increased NEC risk in humans, providing proof-of-concept for its role in NEC. Recently, a drug discovery approach has revealed a novel class of TLR4 inhibitors which are being developed for personalized approaches to NEC treatment. CONCLUSION This review will highlight the current understanding of the role of bacterial signaling in NEC pathogenesis, and will describe advances in diagnosis, prevention and treatment of NEC that may hopefully improve survival for these most fragile patients. SYSTEMATIC REVIEW Level of Evidence: Level II.
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25
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Knell J, Han SM, Jaksic T, Modi BP. In Brief. Curr Probl Surg 2019. [DOI: 10.1067/j.cpsurg.2018.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Affiliation(s)
- Jamie Knell
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Sam M Han
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Tom Jaksic
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA; Harvard Medical School, Center for Advanced Intestinal Rehabilitation, Boston Children's Hospital, Boston, MA
| | - Biren P Modi
- Harvard Medical School, Center for Advanced Intestinal Rehabilitation, Boston Children's Hospital, Boston, MA.
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Knell J, Han SM, Jaksic T, Modi BP. WITHDRAWN: In Brief. Curr Probl Surg 2018. [DOI: 10.1067/j.cpsurg.2018.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Marin T, Patel RM, Roback JD, Stowell SR, Guo Y, Easley K, Warnock M, Skvarich J, Josephson CD. Does red blood cell irradiation and/or anemia trigger intestinal injury in premature infants with birth weight ≤ 1250 g? An observational birth cohort study. BMC Pediatr 2018; 18:270. [PMID: 30098602 PMCID: PMC6087009 DOI: 10.1186/s12887-018-1241-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/02/2018] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Necrotizing enterocolitis (NEC) is a leading cause of neonatal morbidity and mortality in premature infants. To date, no effective biomarkers exist to predict which premature infants will develop NEC, limiting targeted prevention strategies. Multiple observational studies have reported an association between the exposure to red blood cell (RBC) transfusion and/or anemia and the subsequent development of NEC; however, the underlying physiologic mechanisms of how these factors are independently associated with NEC remain unknown. METHODS In this paper, we outline our prospective, multicenter observational cohort study of infants with a birth weight ≤ 1250 g to investigate the associations between RBC transfusion, anemia, intestinal oxygenation and injury that lead to NEC. Our overarching hypothesis is that irradiation of RBC units followed by longer storage perturbs donor RBC metabolism and function, and these derangements are associated with paradoxical microvascular vasoconstriction and intestinal tissue hypoxia increasing the risk for injury and/or NEC in transfused premature infants with already impaired intestinal oxygenation due to significant anemia. To evaluate these associations, we are examining the relationship between prolonged irradiation storage time (pIST), RBC metabolomic profiles, and anemia on intestinal oxygenation non-invasively measured by near-infrared spectroscopy (NIRS), and the development of NEC in transfused premature infants. DISCUSSION Our study will address a critical scientific gap as to whether transfused RBC characteristics, such as irradiation and metabolism, impair intestinal function and/or microvascular circulation. Given the multifactorial etiology of NEC, preventative efforts will be more successful if clinicians understand the underlying pathophysiologic mechanisms and modifiable risk factors influencing the disease. TRIAL REGISTRATION Our study is registered in ClinicalTrials.gov Identifier: NCT02741648 .
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Affiliation(s)
- Terri Marin
- Department of Physiological and Technological Nursing, Augusta University, College of Nursing, 1120 15th Street, EC-5354, Augusta, GA 30912 USA
| | - Ravi M. Patel
- Department of Pediatrics, Emory University, School of Medicine, 2015 Uppergate Drive, Atlanta, GA 30322 USA
| | - John D. Roback
- Department of Pathology and Laboratory Medicine, Emory University, School of Medicine, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
| | - Sean R. Stowell
- Department of Pathology and Laboratory Medicine, Emory University, School of Medicine, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
| | - Ying Guo
- Department of Biostatistics and Bioinformatics, Emory University, School of Public Health, 1518 Clifton Rd, Atlanta, GA 30322 USA
| | - Kirk Easley
- Department of Biostatistics and Bioinformatics, Emory University, School of Public Health, 1518 Clifton Rd, Atlanta, GA 30322 USA
| | - Megan Warnock
- Department of Biostatistics and Bioinformatics, Emory University, School of Public Health, 1518 Clifton Rd, Atlanta, GA 30322 USA
| | - Jane Skvarich
- Department of Pediatrics, Emory University, School of Medicine, 2015 Uppergate Drive, Atlanta, GA 30322 USA
| | - Cassandra D. Josephson
- Department of Pediatrics, Emory University, School of Medicine, 2015 Uppergate Drive, Atlanta, GA 30322 USA
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Howarth C, Banerjee J, Aladangady N. Red Blood Cell Transfusion in Preterm Infants: Current Evidence and Controversies. Neonatology 2018; 114:7-16. [PMID: 29550819 DOI: 10.1159/000486584] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 01/04/2018] [Indexed: 01/21/2023]
Abstract
The current evidence regarding the indication, advantages and risks of red blood cell transfusion (RBCT) for preterm infants is discussed. This is an important area in Neonatology to be examined given that 90% of extremely low birth weight infants receive RBCT and many controversies remain regarding when to transfuse and the risks of RBCT. The various treatment thresholds and guidelines used are presented and we compare the short-term clinical benefits of liberal and restrictive RBCT in preterm infants; the majority of these are equivocal and sadly long-term outcome data is limited. The latest evidence on how anaemia and blood transfusion affect organ perfusion in preterm infants is presented. This is important when trying to establish the optimal trigger threshold for RBCT in preterm infants, especially because the knowledge about the adaptive physiological responses to anaemia in very low birth weight infants and the effects of RBCT at various levels of anaemia is also inadequate. Further research into the physiological adaptive response to anaemia of varying degrees and to RBCT at different levels of anaemia in preterm infants of different gestational and post-natal ages is needed before we can conclusively guide the optimal timing and trigger thresholds for RBCT in preterm infants.
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Affiliation(s)
- Claire Howarth
- Homerton University Hospital NHS Foundation Trust, London, United Kingdom
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