Effects of early enteral nutrition on immune function of severe acute pancreatitis patients

AIM:To investigate the effects of early enteral nutrition (EEN) on the immune function and clinical outcome of patients with severe acute pancreatitis (SAP).METHODS:Patients were randomly allocated to receive EEN or delayed enteral nutrition (DEN).Enteral nutrition was started within 48 h after admission in EEN group,whereas from the 8 th day in DEN group.All the immunologic parameters and C-reactive protein (CRP) levels were collected on days 1,3,7 and 14 after admission.The clinical outcome variables were also recorded.RESULTS:Sixty SAP patients were enrolled to this study.The CD4+ T-lymphocyte percentage,CD4+/CD8+ ratio,and the CRP levels in EEN group became significantly lower than in DEN group from the 7 th day after admission.In contrast,the immunoglobulin G(IgG) levels and human leukocyte antigen-DR expression in EEN group became significantly higher than in DEN group from the 7 th day after admission.No difference of CD8+ T-lymphocyte percentage,IgM and IgA levels was found between the two groups.The incidences of multiple organ dysfunction syndrome,systemic inflammatory response syndrome,and pancreatic infection as well as the duration of intensive care unit stay were significantly lower in EEN group than in DEN group.However,there was no difference of hospital mortality between the two groups.CONCLUSION:EEN moderates the excessive immune response during the early stage of SAP without leading to subsequent immunosuppression.EEN can improve the clinical outcome,but not decrease the hospital mortality of SAP patients.

Comparison of early enteral nutrition in severe acute pancreatitis with prebiotic fiber supplementation versus standard enteral solution:A prospective randomized double-blind study

AIM: To compare the benefi cial effects of early enteral nutrition (EN) with prebiotic fiber supplementation in patients with severe acute pancreatitis (AP).METHODS: Thirty consecutive patients with severe AP, who required stoppage of oral feeding for 48 h, were randomly assigned to nasojejunal EN with or without prebiotics. APACHE Ⅱ score, Balthazar’s CT score and CRP were assessed daily during the study period.RESULTS: The median duration of hospital stay was shorter in the study group [10 ± 4 (8-14) d vs 15 ± 6 (7-26) d] (P < 0.05). The median value of days in intensive care unit was also similar in both groups [6 ± 2 (5-8) d vs 6 ± 2 (5-7) d]. The median duration of EN was 8 ± 4 (6-12) d vs 10 ± 4 (6-13) d in the study and control groups, respectively (P > 0.05). Deaths occurred in 6 patients (20%), 2 in the study group and 4 in the control group. The mean duration of APACHE Ⅱ normalization (APACHE Ⅱ score < 8) was shorter in the study group than in the control group (4 ± 2 d vs 6.5 ± 3 d, P < 0.05). The mean duration of CRP normalization was also shorter in the study group than in the control group (7 ± 2 d vs 10 ± 3 d, P < 0.05).CONCLUSION: Nasojejunal EN with prebiotic fiber supplementation in severe AP improves hospital stay, duration nutrition therapy, acute phase response and overall complications compared to standard EN therapy.

Early nasogastric enteral nutrition for severe acute pancreatitis: A systematic review

AIM: To evaluate the effectiveness and safety of early nasogastric enteral nutrition (NGEN) for patients with severe acute pancreatitis (SAP). METHODS: We searched Cochrane Central Register of Controlled Trials (Issue 2, 2006), Pub-Medline (1966-2006), and references from relevant articles. We included randomized controlled trials (RCTs) only, which reported the mortality of SAP patients at least. Two reviewers assessed the quality of each trial and collected data independently. The Cochrane Collaboration’s RevMan 4.2.9 software was used for statistical analysis. RESULTS: Three RCTs were included, involving 131 patients. The baselines of each trial were comparable. Meta-analysis showed no significant differences in mortality rate of SAP patients between nasogastric and conventional routes (RR = 0.76, 95% CI = 0.37 and 1.55, P = 0.45), and in other outcomes, including time of hospital stay (weighted mean difference = -5.87, 95% CI = -20.58 and 8.84, P = 0.43), complication rate of infection (RR = 1.41, 95% CI = 0.62 and 3.23, P = 0.41) or multiple organ defi ciency syndrome (RR = 0.97, 95% CI = 0.27 and 3.47, P = 0.97), rate of admission to ICU (RR = 1.00, 95% CI = 0.48 and 2.09, P = 0.99) or conversion to surgery (RR = 0.66, 95% CI = 0.12 and 3.69, P = 0.64), as well as recurrence of re-feeding pain and adverse events associated with nutrition. CONCLUSION: Early NGEN is a breakthrough in the management of SAP. Based on current studies, early NGEN appears effective and safe. Since the available evidence is poor in quantity, it is hard to make an accurate evaluation of the role of early NGEN in SAP.Before recommendation to clinical practice, further high qualified, large scale, randomized controlled trials are needed.

Enteral nutrition in treatment of severe acute pancreatitis

Objective: To observe the role and the timing of EN inthe treatment of patients with severe acute pancreatitis(SAP).Methods: Eleven patients with severe acute pancreatitisunderwent systemic nutrition support were studied.EN was given through jejunostomy tube (or Beng-mark tube) after a period of PN maintenance. ENstarted when serum and urine amylase activity re-turned to normal with regular peristaltic sound, defe-cation or break wind. The sequence of preparationwas as follows: saline glucose→chemically defined di-et→polymeric diet→normal diet.Results: In all the patients, none died. The rate of latecomplications was lower, and the levels of serum albu-min and transferritin significantly increased in thepost-EN period as compared with the pre-EN period,although the count of lymphocytes was less changed.Conclusions: Nutritional support should be trans-formed from PN to EN as early as possible during thetreatment of patients with severe acute pancreatitis. ENcould not only continue sufficient nutritional support,but also avoid the unfavorable effects of long-timePN, thus reducing complications as well as mortality.

Prediction model establishment and validation for enteral nutrition aspiration during hospitalization in patients with acute pancreatitis

BACKGROUND Acute pancreatitis(AP)is a disease caused by abnormal activation of pancreatic enzymes and can lead to self-digestion of pancreatic tissues and dysfunction of other organs.Enteral nutrition plays a vital role in the treatment of AP because it can meet the nutritional needs of patients,promote the recovery of intestinal function,and maintain the barrier and immune functions of the intestine.However,the risk of aspiration during enteral nutrition is high;once aspiration occurs,it may cause serious complications,such as aspiration pneumonia,and suffocation,posing a threat to the patient’s life.This study aims to establish and validate a prediction model for enteral nutrition aspiration during hospitalization in patients with AP.AIM To establish and validate a predictive model for enteral nutrition aspiration during hospitalization in patients with AP.METHODS A retrospective review was conducted on 200 patients with AP admitted to Chengdu Shangjin Nanfu Hospital,West China Hospital of Sichuan University from January 2020 to February 2024.Clinical data were collected from the electronic medical record system.Patients were randomly divided into a validation group(n=40)and a modeling group(n=160)in a 1:4 ratio,matched with 200 patients from the same time period.The modeling group was further categorized into an aspiration group(n=25)and a non-aspiration group(n=175)based on the occurrence of enteral nutrition aspiration during hospitalization.Univariate and multivariate logistic regression analyses were performed to identify factors influencing enteral nutrition aspiration in patients with AP during hospitalization.A prediction model for enteral nutrition aspiration during hospitalization was constructed,and calibration curves were used for validation.Receiver operating characteristic curve analysis was conducted to evaluate the predictive value of the model.RESULTS There was no statistically significant difference in general data between the validation and modeling groups(P>0.05).The comparison of age,gender,body mass index,smoking history,hypertension history,and diabetes history showed no statistically significant difference between the two groups(P>0.05).However,patient position,consciousness status,nutritional risk,Acute Physiology and Chronic Health Evaluation(APACHE-II)score,and length of nasogastric tube placement showed statistically significant differences(P<0.05)between the two groups.Multivariate logistic regression analysis showed that patient position,consciousness status,nutritional risk,APACHE-II score,and length of nasogastric tube placement were independent factors influencing enteral nutrition aspiration in patients with AP during hospitalization(P<0.05).These factors were incorporated into the prediction model,which showed good consistency between the predicted and actual risks,as indicated by calibration curves with slopes close to 1 in the training and validation sets.Receiver operating characteristic analysis revealed an area under the curve(AUC)of 0.926(95%CI:0.8889-0.9675)in the training set.The optimal cutoff value is 0.73,with a sensitivity of 88.4 and specificity of 85.2.In the validation set,the AUC of the model for predicting enteral nutrition aspiration in patients with AP patients during hospitalization was 0.902,with a standard error of 0.040(95%CI:0.8284-0.9858),and the best cutoff value was 0.73,with a sensitivity of 91.9 and specificity of 81.8.CONCLUSION A prediction model for enteral nutrition aspiration during hospitalization in patients with AP was established and demonstrated high predictive value.Further clinical application of the model is warranted.

The Effect and Nursing of Indwelling Nasal Jejunal Feeding Tube for Enteral Nutrition in Acute Severe Pancreatitis

Objective:To analyze the effect of enteral nutrition and nursing intervention in patients with indwelling nasojejunal tube in acute severe pancreatitis.Methods:Sixty cases of patients with indwelt nasojejunal tubes treated in our hospital from August 2019 to August 2020 were divided into routine group and observation group as research subjects.Patients in both groups received enteral nutrition,patients in the routine group received routine care,and patients in the observation group received quality care.The recovery time of gastrointestinal function,length of hospital stay,hospitalization cost,nutritional indicators and incidence of complications in the two groups were compared.Results:The recovery time of gastrointestinal function in observation group was lower than that in routine group,P<0.05;The length and cost of hospitalization in observation group were lower than those in routine group,P<0.05;The nutritional indexes in observation group were higher than those in routine group,P<0.05;The incidence of complications in observation group was lower than that in routine group,P<0.05.Conclusion:Quality nursing service improve the effect of enteral nutrition,so as to ensure that patients get sufficient nutritional support.Its effect is remarkable and it is worthy of widespread clinical application.

Reporting and methodological quality of systematic reviews or meta-analyses in nasogastric and nasojejunal enteral nutrition for severe acute pancreatitis

Objective:To evaluate the methodological and reporting quality of systematic reviews and meta-analyses(SRs/MAs)in the nasogastric and nasojejunal enteral nutrition for severe acute pancreatitis(SAP).Methods:The SRs/MAs of nasogastric and nasojejunal enteral nutrition for SAP published in the journal before July.1st 2018 were identified by searching the databases of OVID,Cochrane Library,Wiley,PubMed,CNKI,Wanfang Data and VIP.The methodological and reporting quality of included studies was respectively assessed by AMSTAR 2 scale and PRISMA statement.Results:A total of 6 articles included at last.(1)Several issues of methodological quality in 6 studies were reviewed,such as:no prior design,comprehensive searching strategy,assessment of publication bias,the reason for incorporating the type of research design,or the statement of conflict of interest.(2)The average PRISMA score is 18.83±1.97(17-22).Results on the quality of reporting evaluation showed that 5 SRs/MAs were rated as moderate and 1 as high.What’s more,we assessed the quality of indicators of the result by GRADE,but the grade was low.Conclusion:The quality of the involved studies published at home and abroad is uneven,so it is necessary to seek for further improvement of methodology and standardization of reporting to provide high-quality support for evidenced-based decision.

Effects of dietary fiber in enteral nutrition on inflammatory reaction, immune response and intestinal mucosal barrier in patients with severe acute pancreatitis

Objective:To study the effects of dietary fiber in enteral nutrition on inflammatory reaction, immune response and intestinal mucosal barrier in patients with severe acute pancreatitis. Methods: The patients with severe acute pancreatitis treated in our hospital between February 2015 and February 2018 were selected and randomly divided into two groups. The observation group received basic treatment combined with enteral nutrition containing dietary fiber, and the control group received basic treatment combined with conventional enteral nutrition. The contents of inflammatory cytokines and intestinal mucosal barrier markers in serum, the number of immune cells in peripheral blood as well as the number of intestinal flora in feces were measured respectively before treatment and 7 d after treatment.Results: Interleukin-8 (IL-8), monocyte chemoattractant protein (MCP-1), soluble intercellular adhesion molecule-1 (sICAM-1), soluble triggering receptor expressed on myeloid cells-1 (sTREM1), endotoxin, D-lactic acid and diamine oxidase (DAO) contents in serum, the number of CD8+T cells in peripheral blood as well as the number of enterococcus and enterobacterium in feces of both groups were significantly lower while the number of CD3+T cells, CD4+T cells, CD19+B cells and CD16+CD56+NK cells in peripheral blood as well as the number of bifidobacteria and lactobacillus in feces were significantly higher after treatment, and IL-8, MCP-1, sICAM-1, sTREM1, endotoxin, D-lactic acid and DAO contents in serum, the number of CD8+T cells in peripheral blood as well as the number of enterococcus and enterobacterium in feces of observation group after treatment were significantly lower than those of control group while the number of CD3+T cells, CD4+T cells, CD19+B cells and CD16+CD56+NK cells in peripheral blood as well as the number of bifidobacteria and lactobacillus in feces were significantly higher than those of control group.Conclusion: Dietary fiber in enteral nutrition can alleviate inflammatory reaction, improve immune response and correct intestinal mucosal barrier dysfunction in patients with severe acute pancreatitis.

Effect of moxibustion combined with acupoint application on enteral nutrition tolerance in patients with severe acute pancreatitis

Objective: To explore and analyze the effect of moxibustion combined with acupoint application on enteral nutrition tolerance, nutritional status and comfort in patients with severe acute pancreatitis. Methods: Ninety-six patients who were hospitalized in a third-grade class-A general hospital in Tianjin were selected and divided into three groups: A, B, and C, each with 32 cases. Group A uses usual treatment and care methods, group B implements acupoint application treatment, group C was treated with moxibustion on the basis of acupoint application. Intervention time is from the first day of the enteral nutrition to the 7th day, the tolerance of enteral nutrition in patients 7 days during the intervention and the level of serum albumin and pre-protein in the nutritional indicators of patients on day 3 of intervention and intervention on day 7, as well as the comfort level of the patients on the 7th day of intervention were observed and recorded. Results:(1) The difference in the incidence of enteral nutrition intolerance among the three groups was significantly statistical (P < 0.05). The incidence of enteral nutrition intolerance in group C was lower than that in group B (P < 0.05) and group A (P < 0.05). There was no significant difference between group B and group C (P > 0.05).(2) Nutritional index levels of three groups of patients, on the third day of intervention, the serum albumin and serum pre-protein were significantly statistical (P < 0.05). Comparing the two groups, the serum albumin level in group A was significantly different from that in group B (P < 0.05). There was significant difference between group A and group C (P < 0.05). There was no significant difference between the group and the group C (P > 0.05). On the 7th day of intervention, the difference between group A and group B was statistically significant (P < 0.05). There was a statistically significant difference between group A and group C (P < 0.05), group B and group C (P < 0.05). Pre-protein levels in three groups, there was a significantly statistical difference between intervention days 3 and 7 (P < 0.05), further comparison was made between the two groups. On the third day of intervention, there were significant differences between group A and group B, group A and group C, group B and group C (P < 0.05). On the 7th day of intervention, there were significant differences between group A and group B, group A and group C, group B and group C (P < 0.05).(3) On the 7th day of intervention, the comfort level of the three groups was significantly different (P < 0.05). Further comparison between the two groups was made. The comfort score of group C was higher than that of group B and group A (P < 0.05), and the score of group B was higher than group A (P < 0.05). Conclusion: Moxibustion combined with acupoint application can effectively improve the tolerance level of enteral nutrition and improve the nutritional status of patients and increase patient comfort.

Enteral nutrition in acute pancreatitis:A review of the current evidence

The use of enteral feeding as part of the management of acute pancreatitis dates back almost two decades.This review describes the indications for and limitations of enteral feeding for the treatment of acute pancreatitis using up-to-date evidence-based data.A systematic review was carried out to analyse current data on the use of enteral nutrition in the management of acute pancreatitis.Relevant literature was analysed from the viewpoints of enteral vs parenteral feeding,early vs delayed enteral nutrition,nasogastric vs nasojejunal feeding,and early oral diet and immunonutrition,particularly glutamine and probiotic supplementation.Finally,current applicable guidelines and the effects of these guidelines on clinical practice are discussed.The latest meta-analyses suggest that enteral nutrition significantly reduces the mortality rate of severe acute pancreatitis compared to parenteral feeding.To maintain gut barrier function and prevent early bacterial translocation,enteral feeding should be commenced within the first 24 h of hospital admission.Also,the safety of nasogastric feeding,which eases the administration of enteral nutrients in the clinical setting,is likely equal to nasojejunal feeding.Furthermore,an earlylow-fat oral diet is potentially beneficial in patients with mild pancreatitis.Despite the initial encouraging results,the current evidence does not support the use of immunoenhanced nutrients or probiotics in patients with acute pancreatitis.

Severe acute pancreatitis: Clinical course and management

Severe acute pancreatitis (SAP) develops in about 25% of patients with acute pancreatitis (AP). Severity of AP is linked to the presence of systemic organ dysfunctions and/or necrotizing pancreatitis pathomorphologically. Risk factors determining independently the outcome of SAP are early multi-organ failure, infection of necrosis and extended necrosis (> 50%). Up to one third of patients with necrotizing pancreatitis develop in the late course infection of necroses. Morbidity of SAP is biphasic, in the first week strongly related to early and persistence of organ or multi-organ dysfunction. Clinical sepsis caused by infected necrosis leading to multi-organ failure syndrome (MOFS) occurs in the later course after the first week. To predict sepsis, MOFS or deaths in the first 48-72 h, the highest predictive accuracy has been objectified for procalcitonin and IL-8; the Sepsis- Related Organ Failure Assessment (SOFA)-score predicts the outcome in the first 48 h, and provides a daily assessment of treatment response with a high positive predictive value. Contrast-enhanced CT provides the highest diagnostic accuracy for necrotizing pancreatitis when performed after the first week of disease. Patients who suffer early organ dysfunctions or at risk of developing a severe disease require early intensive care treatment. Early vigorous intravenous fluid replacement is of foremost importance. The goal is to decrease the hematocrit or restore normal cardiocirculatory functions. Antibiotic prophylaxis has not been shown as an effective preventive treatment. Early enteral feeding is based on a high level of evidence, resulting in a reduction of local and systemic infection. Patients suffering infected necrosis causing clinical sepsis, pancreatic abscess or surgical acute abdomen are candidates for early intervention. Hospital mortality of SAP after interventional or surgical debridement has decreased in high volume centers to below 20%.

Enteral nutrition and acute pancreatitis

INTRODUCTIONAcute pancreatitis (AP) is a common severe illness of the digestive tract with variable involvement of other regional tissues and / or remote organ sysems[1-3],Mild disease is associated with minimal organ dysfunction and rapid recovery ,while severe disease is associated with multiple organ system failure and local complications such as necrosis , abscess , fistulas and pseudocyst formation [4-6].

Early intrajejunal nutrition: bacterial translocation and gut barrier function of severe acute pancreatitis in dogs

Objective: To evaluate the effect of early intrajejunalnutrition in attenuating bacterial and/or endotoxintranslocation and improving gut barrier function ofsevere acute pancreatitis (SAP) in dogs.Methods: 15 dogs were divided into parenteral nutrition(PN) group(7 dogs)and early intrajejunal nutrition(EIN) group(8). EIN was delivered nutrients via a nee-dle jejunostomy catheter feeding at 48h after operation.SAP model was induced by injecting 1 ml/kg of com-bined solution of 5% sodium taurocholate and 8000-10000 BAEE units trypsin/ml into the pancreas via thepancreatic duct. Systemic blood samples were ob-tained before and 1, 3, 5, 7 d following SAP, and culturedby aerobic as well as anaerobic bacterial growth. Systemicplasma and portal vein endotoxin levels were quantifiedby the chromogenic limulus amebocyte lysate (LAL)technique. Portal vein blood and specimens of tissuefrom the mesenteriolum and mesocolon lymph nodes,lung, pulmonary portal lymph nodes, pancreatitis tissueand periopancreas tissue were adopted before the experi-ment was finished. Aliquots of the homogenata were cul-tured as blood mentioned above to determine the magnitudeof the bacteria DNA, protein and the villi, the thickness ofmucosa, and the whole bowel wall of the ileum and trans-verse colon were measured.Results: The study showed that the levels of systemicplasma endotoxin and the magnitude of bacterialtranslocation to the portal and systemic blood and dis-tant organ were reduced significantly in the EINgroup as compared with the TPN group. The contentsof protein and DNA, the height of villi, the thicknessof mucosa and whole bowel wall of the ileum andtransverse colon in the EIN group were higher thanthose in the PN group.Conclusion: Our results suggested that EIN is safe andeffective to be adopted by intrajejunal delivery of nu-trients in SAP, decreases the occurrence of gut bacterialtranslocation, and improves the gut barrier function.

Enteral nutrition and immune modulation of acute pancreatitis

Enteral nutrition has been strongly recommended by major scientific societies for the nutritional management of patients with acute pancreatitis.Providing severe acute pancreatitis patients with enteral nutrition within the first 24-48 h of hospital admission can help improve outcomes compared to parenteral nutrition and no feeding.New research is focusing in on when and what to feed to best improve outcomes for acute pancreatitis patients.Early enteral nutrition have the potential to modulate the immune responses.Despite this consistent evidence of early enteral nutrition in patients with acute pancreatitis,clinical practice continues to vary due to individual clinician preference.Achieving the immune modulating effects of enteral nutrition heavily depend on proper placement of the feeding tube and managing any tube feeding associated complications.The current article reviews the immune modulating effects of enteral nutrition and pro-and prebiotics and suggests some practical tools that help improve the patient adherence and tolerance to the tube feeding.Proper selection of the type of the tube,close monitoring of the tube for its placement,patency and securing its proper placement and routine checking the gastric residual volume could all help improve the outcome.Using peptide-based and high medium chaintriglycerides feeding formulas help improving feeding tolerance.

Effect of parenteral and early intrajejunal nutrition on pancreatic digestive enzyme synthesis, storage and discharge in dog models of acute pancreatitis

AIM： To study the effect of early intrajejunal nutrition on enzyme-protein synthesis and secretion during acute pancreatitis. METHODS： Fifteen dogs were randomly divided into parenteral nutrition （n = 7） and early intrajejunal nutrition groups （n = 8）. An acute pancreatitis model was induced by injecting 5% sodium taurocholate and trypsin into the pancreas via the pancreatic duct. Intrajejunal nutrition was delivered with a catheter via a jejunostomy tube after the model was established for 24 h. On d 1 and 7 and at the beginning of nutritional support, radioactive tracing and electron microscopes were used to evaluate the enzyme-protein synthesis in acinar cells, the subcellular fractionation and the change in zymogen granules after 1.85 × 10^6 Bq L-3H phenylalanine was infused at 30, 60, 120, and 180 min. RESULTS： The 3H radioactivity in pancreatic acinar cells reached its peak level at 60 min, and the contents in the early intrajejunal nutrition group were higher than those in the parenteral nutrition group, which were then decreased. The mean number and area of zymogen granules did not show any significant statistical difference in both groups on d i or on d 7 （P 〉 0.05）. CONCLUSION： Early intrajejunal nutrition might be effective in dogs with acute pancreatitis.

Risk factors of infected pancreatic necrosis secondary to severe acute pancreatitis

BACKGROUND： Severe acute pancreatitis（SAP） remains a clinical challenge with considerable morbidity and mortality.An early identification of infected pancreatic necrosis（IPN）, a life-threatening evolution secondary to SAP, is obliged for a more preferable prognosis. Thus, the present study was conducted to identify the risk factors of IPN secondary to SAP. METHODS： The clinical data of patients with SAP were retrospectively analyzed. Univariate and multivariate logistic regression analyses were sequentially performed to assess the associations between the variables and the development of IPN secondary to SAP. A receiver operating characteristic（ROC） curve was created for each of the qualified independent risk factors. RESULTS： Of the 115 eligible patients, 39（33.9%） progressed to IPN, and the overall in-hospital mortality was 11.3%（13/115）.The early enteral nutrition（EEN）（P=0.0092, OR=0.264）, maximum intra-abdominal pressure（IAP）（P=0.0398, OR=1.131）and maximum D-dimer level（P=0.0001, OR=1.006） in the first three consecutive days were independent risk factors associated with IPN secondary to SAP. The area under ROC curve（AUC） was 0.774 for the maximum D-dimer level in the first three consecutive days and the sensitivity was 90% and the specificity was 58% at a cut-off value of 933.5 μg/L; the AUC was 0.831 for the maximum IAP in the first three consecutive days and the sensitivity was 95% and specificity was 58%at a cut-off value of 13.5 mm Hg. CONCLUSIONS： The present study suggested that the maximum D-dimer level and/or maximum IAP in the first three consecutive days after admission were risk factors of IPN secondary to SAP; an EEN might be helpful to prevent the progression of IPN secondary to SAP.

Role of individually staged nutritional support in the management of severe acute pancreatitis

BACKGROUND: Severe acute pancreatitis ( SAP) as acommon acute abdomen due to complicated causes is cha-racterized by lots of morbidities, difficult treatment, andhigh mortality. This study was designed to investigate therole of individually staged nutritional support (ISNS) in thetreatment of SAP.METHODS: One hundred patients with SAP admitted toour hospital from January 1997 to October 2002 were ran-domly divided into total parenteral nutrition group (TPNgroup, 50 patients) and individually staged nutrition group(individualized group, 50 patients), between which thetherapeutic outcome and the incidence of complicationswere carefully analyzed.RESULTS: Compared with the TPN group, the individuali-zed group had less complications (62 vs 94 patients) inclu-ding incubation related complications (2% vs 16%), super-infections (8% vs 30%), hepatic functional insufficiency(4% vs 24%) and intra-peritoneal infections (4% vs 12%),in addition to a sooner restoring of oral nutrition (18.5 vs24.8 days, P<0.05), a shorter hospital stay (24.5 vs 30.2days) and a lower hospital cost (4.1 vs 5.8 10 000 yuan, P<0.05).CONCLUSION: ISNS, which provides SAP patients withsufficient energy and nutrients according to their truepathological status, is an ideal nutrition planning with low-ered incidence of complications, shortened hospital stayand lightened financial burden.

Effect of glutamine nutrition support on the intestinal mucosal barrier function and inflammatory response in patients with severe acute pancreatitis

Objective:To study the effect of glutamine nutrition support on the intestinal mucosal barrier function and inflammatory response in patients with severe acute pancreatitis.Methods:Patients with severe acute pancreatitis who were treated in Pengzhou People's Hospital between May 2014 and November 2016 were selected as the research subjects and randomly divided into two groups, control group received conventional symptomatic treatment and conventional enteral nutrition intervention, and Gln group received conventional symptomatic treatment and glutamine enteral nutrition intervention. The contents of intestinal mucosal barrier damage markers and inflammatory mediators in serum as well as the expression of inflammatory signaling molecules in peripheral blood were detected before and after treatment;the number of intestinal flora was detected after treatment.Results:After treatment, LPS, DAO, HBD2, TNF-α, sTREM-1, IL-1β and IL-6 levels in serum as well as TLR4, NF-kB, MyD88 and p38MAPK mRNA expression in peripheral blood mononuclear cells of both groups of patients were significantly lower than those before treatment, LPS, DAO, HBD2, TNF-α, sTREM-1, IL-1β and IL-6 levels in serum as well as TLR4, NF-kB, MyD88 and p38MAPK mRNA expression in peripheral blood mononuclear cells of Gln group after treatment were significantly lower than those of control group, and the number of lactobacillus, bifidobacterium and bacteroides were significantly higher than those of control group while the number of escherichia coli and enterococcus were significantly lower than those of control group.Conclusion: Glutamine nutrition support for severe acute pancreatitis can reduce the intestinal mucosal barrier function injury and inhibit the inflammatory response activation.

Nutrition management in acute pancreatitis: Clinical practice consideration

Acute pancreatitis(AP)is a common gastrointestinal disease and the leading cause of hospital admission and healthcare burden among gastrointestinal disorders in many countries.Patients can present with varying degrees of inflammation and disease severity,ranging from self-limiting mild AP to devastating and fatal severe AP.Many factors contribute to malnutrition in AP,especially abnormal metabolism and catabolism related to inflammation.The concept of“pancreatic rest”is not evidence-based.There is however,emerging evidence that supports the use of oral or enteral nutrition to improve nutrition status and to reduce local and systemic inflammation,complications,and death.In mild disease,patients are generally able to initiate solid oral diet and do not require specialized nutrition care such as enteral or parenteral nutrition.In contrast,nutrition interventions are imperative in moderately severe and severe AP.The current article aims to review the latest evidence and suggest practical nutrition interventions in patients with AP,including nutrition requirements,routes of nutrition treatment,types of formula,and the role of nutritional supplements,such as glutamine,probiotics,omega-3 fatty acids,and antioxidants.

Early phase of acute pancreatitis: Assessment and management

Acute pancreatitis(AP) is a potentially life-threatening disease with a wide spectrum of severity. The overall mortality of AP is approximately 5%. According to the revised Atlanta classification system, AP can be classified as mild, moderate, or severe. Severe AP often takes a clinical course with two phases, an early and a late phase, which should both be considered separately. In this review article, we first discuss general aspects of AP, including incidence, pathophysiology, etiology, and grading of severity, then focus on the assessment of patients with suspected AP, including diagnosis and risk stratification, followed by the management of AP during the early phase, with special emphasis on fluid therapy, pain management, nutrition, and antibiotic prophylaxis.