The revised Atlanta criteria 2012 altered the classification,severity assessment and management of acute pancreatitis

BACKGROUND： The Atlanta criteria for acute pancreatitis （AP） has been revised recently. This study was to evaluate its practical value in classification of AP, the severity assessment and management. METHODS： The clinical features, severity classification, out- come and risk factors for mortality of 3212 AP patients who had been admitted in Ruijin Hospital from 2004 to 2011 were analyzed based on the revised Atlanta criteria （RAC） and the original Atlanta criteria （OAC）.

Effects of fluid balance on prognosis of acute respiratory distress syndrome patients secondary to sepsis

BACKGROUND:Fluid management is crucial to acute respiratory distress syndrome(ARDS)secondary to sepsis.However,choices of fluid resuscitation strategies and fluid input volumes remain a thorny problem.Our study aimed to elucidate the relationship between fluid balance and prognosis of ARDS patients secondary to sepsis.METHODS:Our study included 322 sepsis patients from Ruijin Hospital between 2014 and 2018,and 84 patients were diagnosed as ARDS within 72 hours after onset of sepsis according to Berlin ARDS Defi nition.RESULTS:Among the 322 sepsis patients,84(26.1%)were complicated with ARDS within 72 hours.ARDS patients had a lower oxygenation index(PaO2/FiO2166.4±71.0 vs.255.0±91.2,P<0.05),longer duration of mechanical ventilation(11[6-24]days vs.0[0-0]days,P<0.05)than those without ARDS.Sepsis patients with ARDS showed daily positive net fl uid balance during seven days compared with those without ARDS who showed daily negative net fluid balance since the second day with signifi cant statistical differences.Among the 84 sepsis patients with ARDS,58(69.0%)died.Mean daily fl uid input volumes were much lower in survivors than in non-survivors(43.2±16.7 mL/kg vs.51.0±25.2 mL/kg,P<0.05)while output volumes were much higher in survivors(45.2±19.8 mL/kg vs.40.2±22.7 mL/kg,P<0.05).Using binary logistic regression analysis,we found that the mean daily fl uid balance was independently associated with mortality of sepsis patients complicating with ARDS(P<0.05).CONCLUSIONS:Early negative fluid balance is independently associated with a better prognosis of sepsis patients complicated with ARDS.

Clinical features and outcomes of patients with severe acute pancreatitis complicated with gangrenous cholecystitis

BACKGROUND: The effects of gangrenous cholecystitis (GC) and consequent surgical interventions on the clinical outcomes and prognosis of patients with severe acute pancreatitis are not clear. The present study was to characterize the clinical outcomes of patients with severe acute pancreatitis complicated with GC. METHODS: We retrospectively analyzed 253 consecutive patients hospitalized for acute pancreatitis in intensive care unit. Among them, 68 were diagnosed as having severe acute pancreatitis; 10 out of the 68 patients had GC. We compared these 10 patients with GC and 58 patients without GC. The indices analyzed included sepsis/septic shock, pancreatic encephalopathy, acute respiratory distress syndrome, acute renal failure, multiple organ dysfunction syndrome, and death. RESULTS: Specific CT images of GC in patients with severe acute pancreatitis included enlarged and high-tensioned gallbladder, wall thickening, lumenal emphysema, discontinuous and/or irregular enhancement of mucosa, and pericholecystic effusion. The rates of severe sepsis/septic shock (70.0% vs 24.1%, P【0.01), pancreatic encephalopathy (50.0% vs 17.2%, P【0.05), acute respiratory distress syndrome (90.0% vs 41.4%, P【0.01), multiple organ dysfunction syndrome (70.0% vs 24.1%, P【0.01), acute renal failure (40.0% vs 27.6%, P【0.05), and death (40.0% vs 13.8%, P【0.05) were significantly higher in patients with GC than in those without GC.CONCLUSION: CT scans can help to identify early GC in patients with severe acute pancreatitis; early diagnosis and intervention for patients with GC can reduce morbidity and mortality.

Biliary tract external drainage protects against intestinal barrier injury in hemorrhagic shock rats

AIM: To investigate the effects of biliary tract external drainage(BTED) on intestinal barrier injury in rats with hemorrhagic shock(HS). METHODS: BTED was performed via cannula insertion into the bile duct of rats. HS was induced by drawing blood from the femoral artery at a rate of 1 m L/min until a mean arterial pressure(MAP) of 40 ± 5 mm Hg was achieved. That MAP was maintained for 60 min. A total of 99 Sprague-Dawley rats were randomized into a sham group, an HS group and an HS + BTED group. Nine rats in the sham group were sacrificed 0.5 h after surgery. Nine rats in each of the HS and HS + BTED groups were sacrificed 0.5 h, 1 h, 2 h, 4 h and 6 h after resuscitation. Plasma tumor necrosis factor-α(TNF-α), interleukin-6(IL-6), and lipopolysaccharide(LPS) levels were analyzed using enzyme-linked immunosorbent assay. Plasma D-lactate levels were analyzed using colorimetry. The expression levels of occludin and claudin-1 in the ileum were analyzed using Western blot and immunohistochemistry. Histology of the ileumwas evaluated by hematoxylin and eosin staining. RESULTS: Plasma TNF-α levels in the HS + BTED group decreased significantly compared with the HS group at 1 h and 6 h after resuscitation(P < 0.05). Plasma IL-6 levels in the HS + BTED group decreased significantly compared with the HS group at 0.5 h, 1 h and 2 h after resuscitation(P < 0.05). Plasma D-lactate and LPS levels in the HS + BTED group decreased significantly compared with the HS group at 6 h after resuscitation(P < 0.05). The expression levels of occludin in the HS + BTED group increased significantly compared with the HS group at 4 h and 6 h after resuscitation(P < 0.05). The expression levels of claudin-1 in the HS + BTED group increased significantly compared with the HS group at 6 h after resuscitation(P < 0.05). Phenomena of putrescence and desquamation of epithelial cells in the ileal mucosa were attenuated in the HS + BTED group. Ileal histopathologic scores in the HS + BTED group decreased significantly compared with the HS group at 2 h, 4 h and 6 h after resuscitation(P < 0.05). CONCLUSION: BTED protects against intestinal barrier injury in HS rats.

Vitamin C Attenuates Hemorrhagic Shock-induced Dendritic Cell-specific Intercellular Adhesion Molecule 3-grabbing Nonintegrin Expression in Tubular Epithelial Cells and Renal Injury in Rats

Background： The expression of dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin （DC-SIGN） in renal tubular epithelial cells has been thought to be highly correlated with the occurrence of several kidney diseases, but whether it takes place in renal tissues during hemorrhagic shock （HS） is unknown. The present study airned to investigate this phenomenon and the inhibitory effect of Vitamin C （VitC）. Methods： A Sprague Dawley rat HS model was established in vivo in this study. The expression level and location of DC-SIGN were observed in kidneys. Also, the degree of histological damage, the concentrations of tumor necrosis factor-or and interleukin-6 in the renal tissues, and the serum concentration of blood urea nitrogen and creatinine at different times （2-24 h） alter HS （six rats in each group）, with or without VitC treatment belbre resuscitation, were evaluated. Results： HS induced DC-SIGN expression in rat tubular epithelial cells. The proinflarnmatory cytokine concentration, histological damage scores, and functional injury of kidneys had increased. All these phenornena induced by HS were relieved when the rats were treated with VitC before resuscitation. Conclusions： The results of the present study illustrated that HS could induce tubular epithelial cells expressing DC-SIGN, and the levels of proinflarnmatory cytokines in the kidney tissues improved correspondingly. The results also indicated that VitC could suppress the DC-SIGN expression in the tubular epithelial cells induced by HS and alleviate the inflammation and functional injury in the kidney.

Clinical characteristics of 5375 cases of acute pancreatitis from a single Chinese center, 1996-2015

Acute pancreatitis (AP) remains a common and lifethreatening gastrointestinal emergency, which is usually induced by gallstones, hyperlipidaemia, alcohol abuse, pancreatic carcinoma, and trauma.[1] According to the 2012 Atlanta consensus, AP is divided into three general grades of severity: mild (MAP), moderate (MSAP), and severe (SAP).

Expert recommendations on blood purification treatment protocol for patients with severe COVID-19

Coronavirus disease(COVID-19)was first diagnosed in Wuhan in December 2019.The World Health Organization defined the subsequent outbreak of COVID-19 worldwide as a public health emergency of international concern.Epidemiological data indicate that at least 20%of COVID-19 patients have severe disease.In addition to impairment of the respiratory system,acute kidney injury(AKI)is a major complication.Immune damage mediated by cytokine storms and concomitant AKI is a key factor for poor prognosis.Based on previous experience of blood purification for patients with severe acute respiratory syndrome and Middle East respiratory syndrome combined with clinical front-line practice,we developed a blood purification protocol for patients with severe COVID-19.This protocol is divided into four major steps.The first step is to assess whether patients with severe COVID-19 require blood purification.The second step is to prescribe a blood purification treatment for patients with COVID-19.The third step is to monitor and adjust parameters of blood purification.The fourth step is to evaluate the timing of discontinuation of blood purification.It is expected that blood purification will play a key role in effectively reducing the mortality of patients with severe COVID-19 through the standardized implemenlation of the present protocol.

Value of Kidney Disease Improving Global Outcomes Urine Output Criteria in Critically III Patients： A Secondary Analysis of a Multicenter Prospective Cohort Study

Background： Urine output （UO） is an essential criterion of the Kidney Disease Improving Global Outcomes （KD1GO） definition and classification system tbr acute kidney injury （AKI）, of which the diagnostic value has not been extensively studied. We aimed to determine whether AKI based on KDIGO UO criteria （KDtGOLro） could improve the diagnostic and prognostic accuracy, compared with KDIGO serum creatinine criteria （KDIGOscr）.Methods： We conducted a secondary analysis of the database of a previous study conducted by China Critical Care Clinical Trial Group （CCCCTG）, which was a 2-month prospective cohort study （July 1,2009 to August 31,2009） involving 3063 patients in 22 tertiary Intensive Care Units in Mainland of China. AKI was diagnosed and classified separately based on KDIGOt,o and KDlGOsc,. Hospital mortality of patients with more severe AKI classification based on KDIGOvo was compared with other patients by univariate and multivariate regression analyses. Results： The prevalence of AKl increased from 52.4% based on KDIGOscr to 55.4% based on KD1GOsc~ combined with KDIGOuo. KDIGOv~~ also restllted in an upgrade of AKI classification in 7.3% of patients, representing those with more severe AK1 classification based on KDIGOvo. Compared with non-AKI patients or those with maximum AKI classification by KDIGOscr, those with maximum AKI classification by KDIGOuo had a significantly higher hospital mortality of 58.4% （odds ratio [OR]： 7.580, 95% confidence interval [CI]： 4.141-13.873, P 〈 0.001）. In a multivariate logistic regression analysis, AKI based on KDIGOuo （OR： 2.891, 95% CI： 1.964-4.254, P 〈 0.001）, but not based on KDIGOscr （OR： 1.322, 95% CI： 0.902-1.939, P = 0.152）, was an independent risk factor for hospital mortality. Conclusion： UO was a criterion with additional value beyond creatinine criterion for AKI diagnosis and classification, which can help identify a group of patients with high risk of death.