Risk of and factors associated with readmission after a sentinel attack of acute pancreatitis

Genome Mining for Hub Genes Related to Endoplasmic Reticulum Stress in Pancreatitis: A Perspective from In Silico Characterization

Pancreatitis, as a common exocrine pancreatic disease, poses a daunting challenge to patients' health and the medical system. Endoplasmic reticulum stress (ERS) plays an essential role in the pathologic process of pancreatitis. However, its mechanism is not fully understood. Therefore, this study was designed to deepen the understanding of the pathogenic mechanism of the disease by screening key ERS-related genes (ERSRGs) associated with pancreatitis. Pancreatitis mRNA data for GSE194331 (Normal: 32, Pancreatitis: 87) and pancreatitis GSE143754 (Normal: 9, Pancreatitis: 6) were downloaded from the GEO database and were used as a training and validation set, respectively. First, the training set GSE194331 was differentially expressed and intersected with the ERSRGs (n = 265) obtained from the MSigDB database to result in 42 differentially expressed ERSRGs (DE-ERSRGs). Subsequently, five candidate genes were further screened by PPI network and MCC and MCODE algorithms. However, according to the ROC curve results, AUC values of CCND1, BCL2, PIK3R1, and BCL2L1 were all greater than 0.6, indicating that they had good diagnostic performance, which was verified by the GSE143754 data set. Based on the GeneMANIA network, it was found that hub genes BCL2 and BCL2L1 may be the key factors in the regulation of mitochondrial metabolism. 24 differentially expressed pancreatitis-related genes (DE-PRGs) were found by difference analysis and Venn analysis. Hub genes BCL2 and PIK3R1 that were significantly correlated with 24 DE-PRGs were determined by Spearman analysis. ssGSEA algorithm was further used to reveal the significant correlation between these hub genes and the immune microenvironment of pancreatitis. The miRNA and lncRNA targeting hub genes were predicted using miRWalk, TargetScan, miRDB, and ENCORI databases, providing research directions for the mechanism of pancreatitis. Finally, the Network Analyst website was used to predict potential compounds associated with the hub gene. In conclusion, this study not only further supports the role of ERS in the development of pancreatitis but also provides a new perspective and direction for the development of biomarkers and mechanism of pancreatitis. At the same time, the results of this study provide a reliable research direction for the targeted treatment of pancreatitis.

Readmission of patients with hypertriglyceridemia-induced acute pancreatitis: a prospective cohort study

BACKGROUND

Acute pancreatitis (AP) is a common cause of acute hospital admissions in digestive system diseases. In East Asia, hypertriglyceridemia is gradually emerged as the second most common cause of pancreatitis. Vigilance for recurrence and unplanned readmissions due to other causes is still necessary after discharge. studies on hypertriglyceridemia-induced acute pancreatitis (HTG-AP) are scarce and mainly consists of retrospective studies.

METHODS

This was a prospective cohort study of adult patients with first episode of HTG-AP from December 2019 to February 2021 who were followed up for two years. Unscheduled readmission after the index discharge was the primary outcome. The Cox proportional-hazards model, and the Fine and Gray's competing-risk model were applied to the analyses.

RESULTS

Totally, 293 survival patients were followed-up after discharge. The overall unplanned readmission rate was 30.0% in two years. Among them, 60 (20.5%) patients were readmitted to hospital once, 16 (5.5%) were readmitted twice, and 13 (4.4%) were readmitted three times or more. In summary, a total of 143 cases of readmission information were collected during the follow-up period. The recurrence accounts for a significant 77.3% proportion and stands as the primary cause for readmission. Cox regression model favors infection (Hazard ratio [HR], 3.066; 95% confidence interval [CI], 1.192-7.888; P = 0.02) and age lower than 41.5 years old (HR, 3.157; 95% CI 1.883-5.292; P < 0.01) as independent risk factors for patient readmission by multivariate analysis. The competing-risk model support the similar results compared with the former.

CONCLUSION

Unplanned readmission of patients with hypertriglyceridemia-induced acute pancreatitis is common, especially for young patients with occurrence of any infection during hospitalization, and warrant further investigation.

Early Readmissions of Necrotizing Pancreatitis in the US: Where Do We Stand?

BACKGROUND

Necrotizing pancreatitis (NP), a severe form of pancreatitis characterized by necrosis of pancreatic tissue, is associated with a significant health care burden worldwide. In this study, we assess early readmissions of NP in the US.

METHODS

The National Readmission Database from 2016 to 2020 was utilized to identify all index and 30-day readmissions of NP in the US. Hospitalization characteristics, readmission rates, clinical outcomes, predictors of readmissions, and health care burden were assessed. P-values <0.05 were statistically significant.

RESULTS

From 2016 to 2020, 43,968 index admissions for NP were identified. Of which, 18.6% were readmitted within 30 days. There was a higher proportion of males on index and 30-day readmission. On readmission, NP was identified as the admitting diagnosis in only 27.64% of the patients, followed by pancreatitis without necrosis (17.7%), sepsis (8.8%), pancreatic pseudocyst (6.85%), and chronic pancreatitis (2.5%). Biliary pancreatitis (aHR 1.46, 95% CI 1.30-1.65, P<0.001), idiopathic pancreatitis (aHR 1.45, 95% CI 1.33-1.57, P<0.001), and other etiologies of pancreatitis (aHR 1.74, 95% CI 1.46-2.06, P<0.001) had a higher risk of 30-day readmission compared with alcohol-induced pancreatitis. We noted lower inpatient mortality (2.11 vs. 2.97%, aOR:0.65, 95% CI 0.50-0.83, P=0.001), mean length of stay (7.36 vs. 10.97 days, mean difference 3.86, 95% CI 4.25-3.48, P<0.001), and total hospitalization charges ($75,282 vs. $125,480, mean difference $53,979, 95% CI $59,417-$48,541, P<0.001) for 30-day readmissions compared with index NP hospitalizations.

CONCLUSION

About one-fifth of NP patients were readmitted within 30 days. However, these patients had lower mortality and health care burden compared with index hospitalization.

A Retrospective Study of Predictors for Readmission in Patients With Acute Pancreatitis

Patients with acute pancreatitis usually recover within a few weeks. Resumption of exposure to risk factors results in the recurrence of pancreatitis and readmission. This study aimed to identify the predictors of readmission among acute pancreatitis patients. A retrospective study design was adopted where the medical records of patients admitted with acute pancreatitis between January 2019 and December 2020 were included. To determine the predictors for readmission, tools such as demographics, clinical proforma, and checklists on predictors of readmission were utilized. The data were analyzed using descriptive (frequency and percentage) and inferential statistics (logistic regression). The readmission rate among adults with acute pancreatitis was 36%. Most of the patients belonged to the age group of 36-55 years. The predominant risk factors identified causing acute pancreatitis were alcohol abuse, gallstones, and idiopathic factors. A higher rate of readmission was seen in alcoholic acute pancreatitis (60.9%) and patients with moderately severe acute pancreatitis (56.1%). At index admission, 30.9% of patients had type 2 diabetes mellitus, 38.7% were alcohol dependent, 41.3% had peripancreatic collection, 12.2% had pseudocyst, and 13% had walled-off necrosis. These factors were the predictors for readmission in patients with acute pancreatitis. A focus on the predictors of readmission with early interventions that prevent complications during the index admission may reduce the risk of readmission in acute pancreatitis.

Psoas Muscle Index and Density as Prognostic Predictors in Patients Hospitalized with Acute Pancreatitis

Background: Early prognostication of acute pancreatitis (AP) patients for those at high risk of complications during hospitalization can facilitate clinical decision-making. Sarcopenia has been proven to be a risk factor for poor prognosis in patients with AP. We aimed to evaluate the association between the muscle parameters measured in computed tomography (CT) and the clinical outcomes of hospitalized patients with AP. Methods: A total of 132 consecutive patients hospitalized between 1 January 2015 and 31 December 2021 for AP with a valid CT scan were analyzed. The first CT conducted during hospitalization was analyzed for psoas muscle area (PMA), index (PMI), and density (PMD) at the L3 vertebral level. The main adverse outcomes indicating a worse prognosis were the development of extrapancreatic complications, infections, ICU transfer, in-hospital mortality, and hospitalization length. Results: The lowest tertile of PMI, as a surrogate for sarcopenia, was significantly correlated with increased rates of extrapancreatic complications, infections, and longer hospitalizations. It was additionally correlated with a worse CT severity index. The results for PMA and PMD also showed worse outcomes, largely mirroring the results for PMI. Although in-hospital mortality was relatively low, none of the patients died in the highest tertile of PMI. A clear cutoff with sufficient predictive capability could not be found. Conclusions: A low psoas muscle index can serve as an additional potential predictive marker for more severe disease and worse outcomes in hospitalized acute pancreatitis patients. More studies are needed to determine its combination with existing prediction tools.

Association between acute peripancreatic fluid collections and early readmission in acute pancreatitis: A propensity-matched analysis

BACKGROUND

Patients with acute pancreatitis (AP) frequently experience hospital readmissions, posing a significant burden to healthcare systems. Acute peripancreatic fluid collection (APFC) may negatively impact the clinical course of AP. It could worsen symptoms and potentially lead to additional complications. However, clinical evidence regarding the specific association between APFC and early readmission in AP remains scarce. Understanding the link between APFC and readmission may help improve clinical care for AP patients and reduce healthcare costs.

AIM

To evaluate the association between APFC and 30-day readmission in patients with AP.

METHODS

This retrospective cohort study is based on the Nationwide Readmission Database for 2016-2019. Patients with a primary diagnosis of AP were identified. Participants were categorized into those with and without APFC. A 1:1 propensity score matching for age, gender, and Elixhauser comorbidities was performed. The primary outcome was early readmission rates. Secondary outcomes included the incidence of inpatient complications and healthcare utilization. Unadjusted analyses used Mann-Whitney U and χ 2 tests, while Cox regression models assessed 30-day readmission risks and reported them as adjusted hazard ratios (aHR). Kaplan-Meier curves and log-rank tests verified readmission risks.

RESULTS

A total of 673059 patients with the principal diagnosis of AP were included. Of these, 5.1% had APFC on initial admission. After propensity score matching, each cohort consisted of 33914 patients. Those with APFC showed a higher incidence of inpatient complications, including septic shock (3.1% vs 1.3%, P < 0.001), portal venous thrombosis (4.4% vs 0.8%, P < 0.001), and mechanical ventilation (1.8% vs 0.9%, P < 0.001). The length of stay (LOS) was longer for APFC patients [4 (3-7) vs 3 (2-5) days, P < 0.001], as were hospital charges ($29451 vs $24418, P < 0.001). For 30-day readmissions, APFC patients had a higher rate (15.7% vs 6.5%, P < 0.001) and a longer median readmission LOS (4 vs 3 days, P < 0.001). The APFC group also had higher readmission charges ($28282 vs $22865, P < 0.001). The presence of APFC increased the risk of readmission twofold (aHR 2.52, 95% confidence interval: 2.40-2.65, P < 0.001). The independent risk factors for 30-day readmission included female gender, Elixhauser Comorbidity Index ≥ 3, chronic pulmonary diseases, chronic renal disease, protein-calorie malnutrition, substance use disorder, depression, portal and splenic venous thrombosis, and certain endoscopic procedures.

CONCLUSION

Developing APFC during index hospitalization for AP is linked to higher readmission rates, more inpatient complications, longer LOS, and increased healthcare costs. Knowing predictors of readmission can help target high-risk patients, reducing healthcare burdens.

Prediction and evaluation of a nomogram model for recurrent acute pancreatitis

OBJECTIVE

The purpose of this study was to investigate the influencing factors for recurrent acute pancreatitis and construct the nomogram model to predict the risk of recurrent acute pancreatitis.

METHODS

Patients diagnosed with acute pancreatitis in the Affiliated Hospital of Southwest Medical University were enrolled. We collected these patients' basic information, laboratory data, imaging information. Using Logistic regression and least absolute shrinkage and selection operator regression to select risk factor for Cross-Validation Criterion. To create nomogram and validated by receiver operator characteristic curve, calibration curves and decision curve analysis.

RESULTS

A total of 533 patients with acute pancreatitis were included, including 99 recurrent acute pancreatitis patients. The average age of recurrent acute pancreatitis patients was 49.69 years old, and 67.7% of them were male. At the same time, in all recurrent acute pancreatitis patients, hypertriglyceridemic pancreatitis is the most important reason (54.5%). Regression analysis and least absolute shrinkage and selection operator regression showed that smoking history, acute necrotic collection, triglyceride, and alcohol etiology for acute pancreatitis were identified and entered into the nomogram. The area under the receiver operator characteristic curve of the training set was 0.747. The calibration curve showed the consistency between the nomogram model and the actual probability.

CONCLUSION

In conclusion, some high-risk factors like smoking history, acute necrotic collection, triglyceride, and alcohol etiology for acute pancreatitis may predict recurrent pancreatitis and their incorporation into a nomogram has high accuracy in predicting recurrence.

Early systemic anticoagulation reduces hospital readmission in acute necrotizing pancreatitis patients: A retrospective cohort study

BACKGROUND

Early systemic anticoagulation (SAC) is a common practice in acute necrotizing pancreatitis (ANP), and its impact on in-hospital clinical outcomes had been assessed. However, whether it affects long-term outcomes is unknown. This study aimed to evaluate the effect of SAC on 90-day readmission and other long-term outcomes in ANP patients.

METHODS

During January 2013 and December 2018, ANP patients admitted within 7 days from the onset of abdominal pain were screened. The primary outcome was 90-day readmission after discharge. Cox proportional-hazards regression model and mediation analysis were used to define the relationship between early SAC and 90-day readmission.

RESULTS

A total of 241 ANP patients were enrolled, of whom 143 received early SAC during their hospitalization and 98 did not. Patients who received early SAC experienced a lower incidence of splanchnic venous thrombosis (SVT) [risk ratio (RR) = 0.40, 95% CI: 0.26-0.60, P < 0.01] and lower 90-day readmission with an RR of 0.61 (95% CI: 0.41-0.91, P = 0.02) than those who did not. For the quality of life, patients who received early SAC had a significantly higher score in the subscale of vitality (P = 0.03) while the other subscales were all comparable between the two groups. Multivariable Cox regression model showed that early SAC was an independent protective factor for 90-day readmission after adjusting for potential confounders with a hazard ratio of 0.57 (95% CI: 0.34-0.96, P = 0.04). Mediation analysis showed that SVT mediated 37.0% of the early SAC-90-day readmission causality.

CONCLUSIONS

The application of early SAC may reduce the risk of 90-day readmission in the survivors of ANP patients, and reduced SVT incidence might be the primary contributor.

Recurrence rates and risk factors for recurrence after first episode of acute pancreatitis: A systematic review and meta-analysis

BACKGROUND

There are a certain number of acute pancreatitis (AP) patients who may suffer from multiple episodes and develop recurrent acute pancreatitis (RAP), but recurrence rates and associated risk factors for RAP vary significantly in the published literature.

METHODS

We searched PubMed, Web of Science, Scopus, and Embase databases to identify all publications reporting AP recurrence until October 20th, 2022. Meta-analysis and meta-regression were performed to calculate the pooled estimates using the random-effects model.

RESULTS

A total of 36 studies met the inclusion criteria and all were used in pooled analyses. The overall rate of recurrence after first-time AP was 21% (95% CI, 18%- 24%), and pooled rates in biliary, alcoholic, idiopathic, and hypertriglyceridemia etiology patients were 12%, 30%, 25%, and 30%, respectively. After managing underlying causes post-discharge, the recurrence rate decreased (14% versus 4% for biliary, 30% versus 6% for alcoholic, and 30% versus 22% for hypertriglyceridemia AP). An increased risk of recurrence was reported in patients with a smoking history (odds ratio [OR] = 1.99), alcoholic etiology (OR = 1.72), male sex (hazard ratio [HR] = 1.63), and local complications (HR = 3.40), while biliary etiology was associated with lower recurrence rates (OR = 0.38).

CONCLUSION

More than one-fifth of AP patients experienced recurrence after discharge, with the highest recurrence rate in alcoholic and hypertriglyceridemia etiologies, and managing underlying causes post-discharge was related to decreased incidence. In addition, smoking history, alcoholic etiology, male gender, and presence of local complications were independent risks for the recurrence.

Profile of and risk factors for early unplanned readmissions in patients with acute necrotizing pancreatitis

INTRODUCTION

Acute necrotizing pancreatitis (ANP) complicates up to 15% of acute pancreatitis cases. ANP has historically been associated with a significant risk for readmission, but there are currently no studies exploring factors that associate with risk for unplanned, early (<30-day) readmissions in this patient population.

METHODS

We performed a retrospective review of all consecutive patients presenting to hospitals in the Indiana University (IU) Health system with pancreatic necrosis between December 2016 and June 2020. Patients younger than 18 years of age, without confirmed pancreatic necrosis and those that suffered in-hospital mortality were excluded. Logistic regression was performed to identify potential predictors of early readmission in this group of patients.

RESULTS

One hundred and sixty-two patients met study criteria. 27.7% of the cohort was readmitted within 30-days of index discharge. The median time to readmission was 10 days (IQR 5-17 days). The most frequent reason for readmission was abdominal pain (75.6%), followed by nausea and vomiting in (35.6%). Discharge to home was associated with 93% lower odds of readmission. We found no additional clinical factors that predicted early readmission.

CONCLUSION

Patients with ANP have a significant risk for early (<30 days) readmission. Direct discharge to home, rather than short or long-term rehabilitation facilities, is associated with lower odds of early readmission. Analysis was otherwise negative for independent, clinical predictors of early unplanned readmissions in ANP.

Nomogram for the Prediction of 30-Day Readmission in Acute Pancreatitis

BACKGROUND

A prediction model for 30-day readmission in patients with acute pancreatitis (AP) was needed.

AIMS

To develop a nomogram to predict 30-day readmission in patients with AP and validate the usefulness of serum indicators after discharge for the prediction of 30-day readmission.

METHODS

This was a retrospective cohort study enrolling patients with the first attack of AP. Baseline characteristics, clinical profiles, and serum indicators after discharge were compared. Multivariate logistic regression analysis and a nomogram were employed to determine the independent risk factors for 30-day readmission.

RESULTS

A total of 7.32% (121/1653) of the patients were readmitted within 30 days after discharge. Different etiologies (biliary pancreatitis (adjusted odds ratio (AdjOR), 9.63; 95% confidence interval (CI), 1.28-72.52; P = 0.028), other causes (AdjOR, 9.37; 95% CI, 1.15-76.12, P = 0.026), mixed causes (AdjOR, 10.76; 95% CI, 1.27-91.35; P = 0.03) compared with alcoholic pancreatitis)), infected pancreatitis necrosis (IPN) (AdjOR, 2.3; 95% CI, 1.2-4.42; P = 0.013), total bilirubin level ≥ 20.5 µmol/L (AdjOR, 2.42; 95% CI, 1.23-4.77; P = 0.01), glucose level ≥ 6.1 mmol/L (AdjOR, 1.93; 95% CI, 1.16-3.19; P = 0.011), and albumin level < 40 g/L (AdjOR, 4.25; 95% CI, 2.44-7.41; P < 0.001) were independently associated with 30-day readmission. A nomogram incorporating these factors demonstrated good discrimination, calibration, and clinical utility. Serum indicators after discharge added predictive value compared with clinical variables alone (AUC, 0.78 vs. 0.685; P = 0.0001).

CONCLUSIONS

The nomogram combining etiology, IPN, and serum indicators after discharge has favorable predictive performance for 30-Day readmission. The close monitoring and reexamination of serum indicators are essential for AP patients at high risk.

Early unplanned readmissions following same-admission cholecystectomy for acute biliary pancreatitis

BACKGROUND

Same-admission cholecystectomy (CCY) is recommended for mild acute biliary pancreatitis (biliary-AP). However, there is a paucity of research investigating reasons for early (30-day) unplanned readmissions in patients who undergo CCY for biliary-AP. Hence, we sought to investigate this gap using a large population database.

METHODS

Using the Nationwide Readmission Database (2010-2014), we identified all adults (age ≥ 18 years) with a principal diagnosis of biliary-AP who had undergone CCY during the index hospitalization. Multivariable logistic regression models were obtained to assess independent predictors for 30-day readmission. Principal diagnosis for all readmissions was collected to ascertain the indications for early readmission.

RESULTS

During the study period, 118,224 patients underwent same-admission CCY for biliary-AP. Three-fourths of all patients underwent invasive cholangiography during the hospitalization (intraoperative cholangiogram (IOC) = 57,038, ERCP = 31,500). The rate of early (30-day) readmission was 7.25% (n = 8574). Exacerbation of prior medical conditions (42.2%), sequelae of biliary-AP (resolving and recurrent pancreatitis, pseudocysts) (27.6%), surgical site and other postoperative complications (16%), choledocholithiasis and/or bile leak (9.6%), and preventable hospital-acquired conditions (4.6%) accounted for early readmissions. On multivariable analysis, predictors for readmission included male sex (odds ratio [OR] 1.18, 95% confidence interval [CI] 1.08-1.28), insurance type (Medicare insurance [OR 1.26, 95% CI 1.13-1.40]; Medicaid [OR 1.22, 95% CI 1.09-1.38]), outside-facility discharge (OR 1.35, 95% CI 1.16-1.57), severe AP (OR 1.35, 95% CI 1.21-1.50), and ≥ 3 Elixhauser comorbidities (OR 1.55, 95% CI 1.41-1.69). Performance of IOC (OR 0.90, 95% CI 0.82-0.97) and ERCP (OR 0.81, 95% CI 0.73-0.89) were associated with decreased risk of early readmission.

CONCLUSION

In this study, using a national population database evaluating patients who underwent same-admission CCY after biliary-AP, we identified potentially modifiable risk factors and causes for early readmission as well as opportunities to improve clinical care.

Targeting Endoplasmic Reticulum Stress as an Effective Treatment for Alcoholic Pancreatitis

Pancreatitis and alcoholic pancreatitis are serious health concerns with an urgent need for effective treatment strategies. Alcohol is a known etiological factor for pancreatitis, including acute pancreatitis (AP) and chronic pancreatitis (CP). Excessive alcohol consumption induces many pathological stress responses; of particular note is endoplasmic reticulum (ER) stress and adaptive unfolded protein response (UPR). ER stress results from the accumulation of unfolded/misfolded protein in the ER and is implicated in the pathogenesis of alcoholic pancreatitis. Here, we summarize the possible mechanisms by which ER stress contributes to alcoholic pancreatitis. We also discuss potential approaches targeting ER stress and UPR in developing novel therapeutic strategies for the disease.

C-REACTIVE PROTEIN AS A MARKER OF CLINICAL AND LABORATORY REMISSION IN PATIENTS WITH ACUTE NECROTIZING PANCREATITIS

OBJECTIVE

The aim: To estimate the role of C-reactive protein levels as a marker of clinical and laboratory remission in patients with acute necrotizing pancreatitis.

PATIENTS AND METHODS

Materials and methods: A single-center retrospective non-randomized study of 68 patients (37 (54%) men, 31 (46%) women) was carried out in the period from September 2019 to October 2020. The patients were divided into two groups: group 1 included 9 (13.2%) patients rehospitalized within a month of observation after being discharged from hospital with improvement, group 2 consisted of 59 (86.8%) patients not readmitted within the observation period. A standard package of Microsoft Excel, program MedStat v.5.2, W-test Wilcoxon and the Fisher transform was used to record, calculate and compare data.

RESULTS

Results: Patients in groups 1 and 2 did not statistically differ in age (p = 0.727), gender (p = 0.202), body mass index (BMI) (p = 0.447), length of hospital stay (p = 0.913), volume of pancreatic lesion according to СTSI (p = 0.313) and severity of disease (p = 0.205). Incidence of pancreatic necrosis infection was 88.8% (p = 0.007) in group 1 versus 35.6% in group 2. In the group of rehospitalized patients, the level of C-reactive protein upon discharge was significantly higher (Me ± m 80.8± 9.734 (66) -88), CI 95%) compared with the patients from the group without readmission (Me ± m 21.36± 2.285 (16.1-31.1) CI 95%) p <0.001. As the "critical" CRP level for group 1, indicating readmission for infectious complications of AP, was chosen the value of the left limit of 95% CI (confidence interval), which made up ≥64.5 mg / ml.

CONCLUSION

Conclusions: According to the results of our study, the risk of readmission in patients with CRP level ≥64.5 mg / L prior to being discharged exceeded 41 times the risk of readmission in those with lower CRP values (RR 41.5 ± 1.008 (95% CI 5.75-299, p = 0.04)). For each patient with CRP levels ≥64.5 mg / L, the risk of readmission within the first month after being discharged was 71% (95% CI 40.7-88.6, p = 0.03).

Thirty-Day Readmission Among Patients with Alcoholic Acute Pancreatitis

BACKGROUND/OBJECTIVES

Alcoholic acute pancreatitis (AAP) comprises the second most common cause of acute pancreatitis in the USA, and there is lack of data regarding 30-day specific readmission causes and predictors. We aim to identify 30-day readmission rate, causes, and predictors of readmission.

METHODS

Retrospective analysis of the 2016 National Readmission Database of adult patients readmitted within 30 days after an index admission for AAP.

RESULTS

Totally, 76,609 AAP patients were discharged from the hospital in 2016. The 30-day readmission rate was 12%. The main cause of readmission was another episode of AAP. Readmission was not associated with higher mortality (1.3% vs. 1.2%; P = 0.21) or prolonged length of stay (5.2 vs. 5.0 days; P = 0.06). The total health care economic burden was $354 million in charges and $90 million in costs. Independent predictors of readmission were having Medicaid insurance, a Charlson comorbidity index score ≥ 3, use of total parenteral nutrition, opioid abuse disorder, prior pancreatic cyst, chronic alcoholic pancreatitis, and other chronic pancreatitis. Obesity was associated with lower odds of readmission.

CONCLUSION

Readmission rate for AAP is high and its primary cause are recurrent episodes of AAP. Alcohol and substance abuse pose a high burden on our health care system. Public health strategies should be targeted to provide alcohol abuse disorder rehabilitation and cessation resources to alleviate the burden on readmission, the health care system and to improve patient outcomes.

Role of Hydrogen Sulfide, Substance P and Adhesion Molecules in Acute Pancreatitis

Inflammation is a natural response to tissue injury. Uncontrolled inflammatory response leads to inflammatory disease. Acute pancreatitis is one of the main reasons for hospitalization amongst gastrointestinal disorders worldwide. It has been demonstrated that endogenous hydrogen sulfide (H2S), a gasotransmitter and substance P, a neuropeptide, are involved in the inflammatory process in acute pancreatitis. Cell adhesion molecules (CAM) are key players in inflammatory disease. Immunoglobulin (Ig) gene superfamily, selectins, and integrins are involved at different steps of leukocyte migration from blood to the site of injury. When the endothelial cells get activated, the CAMs are upregulated which leads to them interacting with leukocytes. This review summarizes our current understanding of the roles H2S, substance P and adhesion molecules play in acute pancreatitis.

Immune Dysfunction is Associated with Readmission in Survivors of Sepsis Following Infected Pancreatic Necrosis

Objective

Immunosuppression is common in patients with infected pancreatic necrosis (IPN) and associated with morbidity and mortality. This study aimed to investigate the impact of immune status on mortality and readmission after hospital discharge in patients with IPN-related sepsis.

Methods

In this prospective observational study, eligible adult patients with IPN-related sepsis requiring ICU admission were included. Monocytic human leukocyte antigen DR (mHLA-DR), expression of regulatory T cells (Treg), and neutrophil CD88 (nCD88) were measured on the diagnosis of sepsis, ICU discharge, hospital discharge, and 15, 30, 60 days after hospital discharge. Logistic regression model was used to assess potential risk factors for readmission 60-days within the index discharge.

Results

A total of 53 patients were included, 13 died during hospitalization and one withdrew the consent soon after discharge. Among the survivors, a tendency of immune recovery was observed during the consecutive follow-ups, evidenced by the increased expression of mHLA-DR. Sixteen patients (41.03%) were readmitted within 60 days after the index discharge. In the multivariable regression model, APACHE II score when sepsis was diagnosed >9 and mHLA-DR at discharged <14,591 AB/C were found to be independent risk factors affecting readmission.

Conclusion

Immunosuppression is common in patients with IPN-related sepsis and can persist until two months after discharge. The compromised mHLA-DR level at discharge was associated with readmission within two months after discharge.

Outcomes in Endoscopic and Operative Transgastric Pancreatic Debridement

OBJECTIVES

Select patients with anatomically favorable walled off pancreatic necrosis may be treated by endoscopic (Endo-TGD) or operative (OR-TGD) transgastric debridement (TGD). We compared our experience with these 2 approaches.

SUMMARY BACKGROUND DATA

Select necrotizing pancreatitis (NP) patients are suitable for TGD which may be accomplished endoscopically or surgically. Limited experience exists contrasting these techniques exists.

METHODS

Patients undergoing Endo-TGD and OR-TGD at a single, high-volume pancreatic center between 2008 and 2019 were identified from a prospective database. Patient characteristics, procedural details, and outcomes of these 2 groups were compared.

RESULTS

Among 498 NP patients undergoing necrosis intervention, 160 (32%) had TGD: 59 Endo-TGD and 101 OR-TGD. The groups were statistically similar in age, comorbidity, pancreatitis etiology, necrosis anatomy, pancreatitis severity, and timing of TGD from pancreatitis insult. OR-TGD required 1.1 ± 0.5 and Endo-TGD 3.0 ± 2.0 debridements/patient. Fewer hospital readmissions and repeat necrosis interventions, and shorter total inpatient length of stay were observed in OR-TGD patients. New-onset organ failure [Endo-TGD (13%); OR-TGD (13%); P = 1.0] was similar between groups. Hospital length of stay after TGD was significantly longer in patients undergoing Endo-TGD (13.8 ± 20.8 days) compared to OR-TGD (9.4 ± 6.1 days; P = 0.047). Mortality was 7% in Endo-TGD and 1% in OR-TGD (P = 0.04).

CONCLUSIONS

Operative and endoscopic transgastric debridement achieve necrosis resolution with different temporal and procedural profiles. Clear multidisciplinary communication is essential to determine appropriate approach to individual necrotizing pancreatitis patients.

Predictors of the Failure of Noninvasive Ventilation in Patients With Acute Respiratory Failure Caused by Severe Acute Pancreatitis: A Prospective Observational Study

OBJECTIVE

The aim of the study was to identify risk factors associated with the failure of noninvasive ventilation (NIV) in patients with severe acute pancreatitis (SAP).

METHODS

Patients who received NIV as a first-line therapy because of acute respiratory failure caused by SAP were enrolled.

RESULTS

A total of 133 patients were enrolled. Of the patients, 32 (24%) experienced NIV failure. Male sex (odds ratio [OR], 4.25; 95% confidence interval [CI], 1.48-12.22), older age (OR, 1.04; 95% CI, 1.01-1.08), a higher Acute Physiology and Chronic Health Evaluation II score (OR, 1.18; 95% CI, 1.03-1.36), and a procalcitonin level greater than 3.8 ng/mL (OR, 6.28; 95% CI, 2.04-19.31) were independently associated with NIV failure. The receiver operating characteristic curves for predicting NIV failure were 0.67, 0.72, and 0.76 tested by age, procalcitonin, and Acute Physiology and Chronic Health Evaluation II score, respectively. From initiation to 24 hours, the patients in the NIV failure group had a higher proportion of Glasgow Coma Scale scores of 14 or less, a higher proportion of pH ≤7.35, and higher respiratory rates than ones in the successful NIV group.

CONCLUSIONS

One of 4 SAP patients experience NIV failure. Age, sex, disease severity, level of inflammation, and vital signs can be used to predict NIV failure.

A Novel 5-Cytokine Panel Outperforms Conventional Predictive Markers of Persistent Organ Failure in Acute Pancreatitis

INTRODUCTION

Existing laboratory markers and clinical scoring systems have shown suboptimal accuracies for early prediction of persistent organ failure (POF) in acute pancreatitis (AP). We used information theory and machine learning to select the best-performing panel of circulating cytokines for predicting POF early in the disease course and performed verification of the cytokine panel's prognostic accuracy in an independent AP cohort.

METHODS

The derivation cohort included 60 subjects with AP with early serum samples collected between 2007 and 2010. Twenty-five cytokines associated with an acute inflammatory response were ranked by computing the mutual information between their levels and the outcome of POF; 5 high-ranking cytokines were selected. These cytokines were subsequently measured in early serum samples of an independent prospective verification cohort of 133 patients (2012-2016), and the results were trained in a Random Forest classifier. Cross-validated performance metrics were compared with the predictive accuracies of conventional laboratory tests and clinical scores.

RESULTS

Angiopoietin 2, hepatocyte growth factor, interleukin 8, resistin, and soluble tumor necrosis factor receptor 1A were the highest-ranking cytokines in the derivation cohort; each reflects a pathologic process relevant to POF. A Random Forest classifier trained the cytokine panel in the verification cohort and achieved a 10-fold cross-validated accuracy of 0.89 (area under the curve 0.91, positive predictive value 0.89, and negative predictive value 0.90), which outperformed individual cytokines, laboratory tests, and clinical scores (all P ≤ 0.006).

DISCUSSION

We developed a 5-cytokine panel, which accurately predicts POF early in the disease process and significantly outperforms the prognostic accuracy of existing laboratory tests and clinical scores.

Identification of a Risk Profile for New-Onset Diabetes After Acute Pancreatitis

OBJECTIVES

There is a paucity of studies evaluating predictors of new-onset diabetes mellitus (DM) after acute pancreatitis (AP-related DM). We used a population-based database to evaluate predictors of AP-related DM.

METHODS

The Nationwide Readmissions Database (2010-2014) was used to identify all nondiabetic adults with an index primary diagnosis of AP. Multiple exclusions were applied to identify cohorts with and without AP-related DM. A case-control study was conducted to identify risk factors for developing AP-related DM within the calendar year.

RESULTS

We identified 2510 subjects with AP-related DM and 40,308 controls with AP who did not develop DM. Multivariable analysis revealed that increasing age (50-64 years; adjusted odds ratio [aOR], 1.35; 95% confidence interval [CI], 1.14-1.60), male sex (aOR, 1.2; 95% CI, 1.03-1.40), lowest income quartile (aOR, 1.48; 95% CI, 1.18-1.84), Elixhauser comorbidity index of 3 or higher (aOR, 1.47; 95% CI, 1.23-1.75), components of metabolic syndrome (aOR, 2.12; 95% CI, 1.21-3.70), severe AP (aOR, 1.60; 95% CI, 1.34-1.90), and recurrent AP (aOR, 1.46; 95% CI, 1.24-1.72) were independently associated with increased risk of AP-related DM.

CONCLUSIONS

These population-level variables predictive of developing AP-related DM can potentially identify patients who may benefit from closer follow-up, intensive education, and implementation of preventative strategies.

[Rate of early hospital readmission in acute pancreatitis as a quality marker]

Összefoglaló. Bevezetés: Az akut pancreatitis az egyik leggyakoribb kórházi felvételt igénylő gastrointestinalis kórkép. A korai visszavételi arány egyrészt az ellátást jellemző minőségi mutató, másrészt az akut pancreatitis 1 éves mortalitásának legerősebb prognosztikai faktora. Célkitűzés: A korai visszavétel arányának, illetve okainak vizsgálata klinikánkon akut pancreatitis diagnózisával kezelt betegek körében. Módszerek: Retrospektív vizsgálatunkat azon 18 év feletti betegek körében végeztük, akiket a 2010. január és 2018. december közötti időszakban akut pancreatitis diagnózisával kezeltünk klinikánkon, és az első emissziótól számítva 30 napon belül újból felvételre kerültek. A betegek adatait az Akut Pancreatitis Regiszter és a betegnyilvántartó rendszer (MedSol ) segítségével gyűjtöttük össze. A biliaris, illetve nem biliaris akut pancreatitises eseteket hasonlítottuk össze az epidemiológiai adatok, a visszavétel oka, a visszavételig eltelt átlagos időtartam, és a visszavétel időtartama, valamint kimenetele vonatkozásában. Eredmények: Akut pancreatitis diagnózisával 647 beteg került felvételre. Közülük 28 beteg került újrafelvételre. A leggyakoribb okok között 1) peripancreaticus szövődmények, 2) epés panaszok és 3) az akut pancreatitis kiújulása szerepel. A biliaris és a nem biliaris pancreatitises eseteket összehasonlítva, a visszavétel oka epés panasz volt az előbbi csoport 65,5%-ában és az utóbbi 15%-ában. A középsúlyos pancreatitises esetek száma szignifikánsan magasabbnak adódott a nem biliaris csoportban. Következtetés: A középsúlyos/súlyos pancreatitises esetek aránya magasabb volt a nem biliaris pancreatitises csoportban. Biliaris pancreatitis esetén javasolt index-cholecystectomia végzése. Orv Hetil. 2021; 162(11): 413-418.

INTRODUCTION

Acute pancreatitis is the leading cause of hospitalization among gastrointestinal diseases. The early readmission rate is a quality marker and the strongest prognostical factor of 1-year mortality of acute pancreatitis.

OBJECTIVE

To investigate the rate and cause of early readmission among patients treated with acute pancreatitis at our clinic.

METHODS

Our retrospective study was conducted among patients (>18 years) treated with acute pancreatitis between January 2010 and December 2018 at our clinic, by whom unplanned readmission happened <30 days from emission. Personal data were collected from the Hungarian Pancreas Registry. Data of biliary and non-biliary acute pancreatitis cases were compared concerning epidemiological data, cause of readmission, mean time elapsed until readmission, its duration and outcome.

RESULTS

647 patients were diagnosed with acute pancreatitis. Of them, 28 patients had early readmission. The most common causes were 1) local pancreatic complications, 2) biliary and 3) recurrence of acute pancreatitis. By investigating the biliary and non-biliary pancreatitis cases separately, the cause of readmission was biliary in 65.5% and 15%, respectively. The number of moderately severe pancreatitis cases was significantly higher in the non-biliary group.

CONCLUSION

The proportion of moderate/severe diseases was higher in the non-biliary pancreatitis group. In the case of biliary pancreatitis, it is suggested to perform index cholecystectomy. Orv Hetil. 2021; 162(11): 413-418.

The Short- and Long-Term Burden of Acute Pancreatitis in the United States: A Retrospective Cohort Study

OBJECTIVES

This retrospective cohort study assessed short- and long-term economic, clinical burden, and productivity impacts of acute pancreatitis (AP) in the United States.

METHODS

United States claims data from patients hospitalized for AP (January 1, 2011-September-30, 2016) were sourced from MarketScan databases. Patients were categorized by index AP severity: severe intensive care unit (ICU), severe non-ICU, and other hospitalized patients.

RESULTS

During index, 41,946 patients were hospitalized or visited an emergency department for AP. For inpatients, median (interquartile range) AP-related total cost was $13,187 ($12,822) and increased with AP severity (P < 0.0001). During the postindex year, median AP-related costs were higher (P < 0.0001) for severe ICU versus severe non-ICU and other hospitalized patients. Hours lost and costs due to absence and short-term disability were similar between categories. Long-term disability costs were higher (P = 0.005) for severe ICU versus other hospitalized patients. Factors associated with higher total all-cause costs in the year after discharge included AP severity, length of hospitalization, readmission, AP reoccurrence, progression to chronic pancreatitis, or new-onset diabetes (P < 0.0001).

CONCLUSIONS

An AP event exerts substantial burden during hospitalization and involves long-term clinical and economic consequences, including loss of productivity, which increase with index AP event severity.

Hospital outcomes and early readmission for the most common gastrointestinal and liver diseases in the United States: Implications for healthcare delivery

BACKGROUND

Gastrointestinal (GI) and liver diseases contribute to substantial inpatient morbidity, mortality, and healthcare resource utilization. Finding ways to reduce the economic burden of healthcare costs and the impact of these diseases is of crucial importance. Thirty-day readmission rates and related hospital outcomes can serve as objective measures to assess the impact of and provide further insights into the most common GI ailments.

AIM

To identify the thirty-day readmission rates with related predictors and outcomes of hospitalization of the most common GI and liver diseases in the United States.

METHODS

A cross-sectional analysis of the 2012 National Inpatient Sample was performed to identify the 13 most common GI diseases. The 2013 Nationwide Readmission Database was then queried with specific International Classification of Diseases, Ninth Revision, Clinical Modification codes. Primary outcomes were mortality (index admission, calendar-year), hospitalization costs, and thirty-day readmission and secondary outcomes were predictors of thirty-day readmission.

RESULTS

For the year 2013, the thirteen most common GI diseases contributed to 2.4 million index hospitalizations accounting for about $25 billion. The thirty-day readmission rates were highest for chronic liver disease (25.4%), Clostridium difficile (C. difficile) infection (23.6%), functional/motility disorders (18.5%), inflammatory bowel disease (16.3%), and GI bleeding (15.5%). The highest index and subsequent calendar-year hospitalization mortality rates were chronic liver disease (6.1% and 12.6%), C. difficile infection (2.3% and 6.1%), and GI bleeding (2.2% and 5.0%), respectively. Thirty-day readmission correlated with any subsequent admission mortality (r = 0.798, P = 0.001). Medicare/Medicaid insurances, ≥ 3 Elixhauser comorbidities, and length of stay > 3 d were significantly associated with thirty-day readmission for all the thirteen GI diseases.

CONCLUSION

Preventable and non-chronic GI disease contributed to a significant economic and health burden comparable to chronic GI conditions, providing a window of opportunity for improving healthcare delivery in reducing its burden.

Autophagy in Acute Pancreatitis: Organelle Interaction and microRNA Regulation

Acute pancreatitis (AP) is a common disorder with significant hospital admission and mortality. Due to the unclarified pathological mechanism, there is still no effective and specific treatment for AP. Recently, autophagy has been found to be closely related with occurrence and development of AP, which is crucial in determining its severity and outcomes. Emerging evidence indicates that autophagy can be regulated and influenced by microRNAs and organelles, including mitochondria, endoplasmic reticulum and lysosome, through various ways in AP. Of note, the complex interplays and close relationships among autophagy, microRNA and organelles in AP are vital for figuring out pathogenesis but not clear yet. Thus, this review summarizes the role of autophagy in the pathological mechanism of AP, especially the relationship between impaired autophagy and organelles, and discusses the regulatory mechanism of microRNA on autophagy, which could offer new insights into understanding the pathogenesis of AP and developing new potential therapeutic targets against AP.

Groove pancreatitis has a spectrum of severity and can be managed conservatively

BACKGROUND & AIMS

The natural history of groove pancreatitis is incompletely characterized. Published literature suggests a high rate of surgery. We describe the short- and long-term outcomes in a cohort of patients with groove pancreatitis treated at our institution.

METHODS

Medical records of patients hospitalized in the University of Pittsburgh Medical Center system from 2000 to 2014 and diagnosed with groove pancreatitis based on imaging were retrospectively reviewed. Clinical presentation and outcomes during index admission and follow-up were recorded.

RESULTS

Forty-eight patients with groove pancreatitis were identified (mean age 53.2 years, 79% male). Seventy-one percent were alcohol abusers and an equal number were cigarette smokers. Prior histories of acute and chronic pancreatitis were noted in 30 (62.5%) and 21 (43.8%), respectively. Forty-four (91.7%) met criteria for acute pancreatitis during their index admission. Alcohol was the most common etiology (68.8%). No patient experienced organ failure. The most frequent imaging findings were fat stranding in the groove (83.3%), duodenal wall thickening (52.1%), and soft tissue mass/thickening in the groove (50%). Over a mean follow-up of 5.0 years, seven (14.6%) required a pancreas-related surgery. Patients had a high burden of pancreatitis-related readmissions (68.8%, 69.4/100 patient-years). Incident diabetes and chronic pancreatitis were diagnosed in 5 (13.9% of patients at risk) and 8 (29.6% of patients at risk) respectively.

CONCLUSIONS

Groove pancreatitis has a wide spectrum of severity; most patients have mild disease. These patients have a high burden of readmissions and progression to chronic pancreatitis. A small minority requires surgical intervention.

Drug discovery and formulation development for acute pancreatitis

Acute pancreatitis is a sudden inflammation and only last for a short time, but might lead to a life-threatening emergency. Traditional drug therapy is an essential supportive method for acute pancreatitis treatment, yet, failed to achieve satisfactory therapeutic outcomes. To date, it is still challenging to develop therapeutic medicine to redress the intricate microenvironment promptly in the inflamed pancreas, and more importantly, avoid multi-organ failure. The understanding of the acute pancreatitis, including the causes, mechanism, and severity judgment, could help the scientists bring up more effective intervention and treatment strategies. New formulation approaches have been investigated to precisely deliver therapeutics to inflammatory lesions in the pancreas, and some even could directly attenuate the pancreatic damages. In this review, we will briefly introduce the involved pathogenesis and underlying mechanisms of acute pancreatitis, as well as the traditional Chinese medicine and the new drug option. Most of all, we will summarize the drug delivery strategies to reduce inflammation and potentially prevent the further development of pancreatitis, with an emphasis on the bifunctional nanoparticles that act as both drug delivery carriers and therapeutics.

Progression to recurrent acute pancreatitis after a first attack of acute pancreatitis in adults

PURPOSE

Patients with a first attack of acute pancreatitis (AP) can develop recurrent acute pancreatitis (RAP). Hence, this study aimed to investigate the clinical features of the disease and the risk factors for RAP.

METHODS

We performed a retrospective study of 522 patients from Jan 1 to Dec 31, 2006. All patients with AP were followed for 36 months. The primary end point was the rate of RAP. The secondary end points were the risk factors that were evaluated by Cox regression analysis. The cumulative risk of RAP was assessed using Kaplan-Meier analysis.

RESULTS

56 of the 522 patients (10.7%) developed RAP. Among those RAP patients, 37 (7.1%) experienced one relapse, 10 (1.9%) experienced two relapses, and 9 (1.7%) experienced three or more relapses. Univariate analysis indicated that age (p = 0.016), male sex, etiology of AP (p = 0.001), local complications (p = 0.001) and Length of stay (LOS) (p = 0.007) were associated with RAP. Multivariate analysis with the Cox proportional hazards model showed that male sex (HR = 2.486, 95% CI, 0.169-0.960, p = 0.04), HTG-associated etiology (HR = 5.690, 95% CI, 2.138-15.146, p = 0.001), alcohol-associated etiology (HR = 5.867, 95% CI, 1.446-23.803, p = 0.013) and current local complications at index admission (HR = 8.917, 95% CI, 3.650-21.789, p = 0.001) were significant independent risk factors for RAP.

CONCLUSIONS

A first attack of AP led to RAP in 10.7% of patients within 3 years. Male sex was significantly associated with RAP. The etiologies of alcohol and HTG and local complications were the strongest risk factors for recurrent disease. Patients with these characteristics should be given special attention and followed-up closely.

Association between Inflammatory Bowel Disease and Pancreatitis: A PRISMA-Compliant Systematic Review

METHODS

MEDLINE, Embase, and CENTRAL were systematically searched for correlative studies till 2 November 2019. RevMan5.3 was used to estimate relevance.

RESULTS

Three studies with 166008 participants were included. The risk of pancreatitis significantly increased in the patients with CD (OR, 3.40; 95% CI, 2.70-4.28; P < 0.00001) and UC (OR, 2.49; 95% CI, 1.91-3.26; P < 0.00001). Increased risks of CD (OR, 12.90; 95% CI, 5.15-32.50; P < 0.00001) and UC (OR, 2.80; 95% CI, 1.00-7.86; P = 0.05) were found in patients with chronic pancreatitis. As for patients with acute pancreatitis, there were significant association of CD (OR, 3.70; 95% CI, 1.90-7.60; P = 0.0002), but were not UC.

CONCLUSIONS

The evidence confirmed an association between pancreatitis and IBD. When pancreatitis patients have chronic diarrhea and mucus blood stool or IBD patients have repeated abdominal pain and weight loss, they should consult pancreatic and gastrointestinal specialists.

Different Hospital Readmissions and Outcomes of Acute Pancreatitis

OBJECTIVES

Although acute pancreatitis (AP) is associated with recurrent hospitalizations, the impact of different hospital readmissions (DHR) versus same hospital readmissions (SHR) on outcomes is unknown. We study the burden of DHR among readmissions after survival from AP hospitalizations.

METHODS

Among adult AP patients (Nationwide Readmissions Database), we calculated the prevalence, trends, and predictors of DHR, and its impact on mortality, hospital stay, and charges during 30- and 90-day readmissions.

RESULTS

From 2010 to 2014, 15% and 26% of AP hospitalizations (422,950) were readmitted in 30 and 90 days, respectively. The DHR rates were similar (26.3%, 30 days; 26.4%, 90 days) and unchanged from 2010 to 2014 (Ptrends > 0.10). The predictors of DHR were similar during both readmissions and included younger age category (18-45 years), hospital characteristics (nonteaching, small bed size, nonmicropolitan/metropolitan areas), substance abuse, comorbidities, and nonreception of cholecystectomy and pancreatectomy during index hospitalizations.During readmissions (30 and 90 days), DHR was associated with adjusted odds ratio (95% confidence interval), higher mortality (1.40 [1.19-1.64] and 1.50 [1.32-1.71]), longer hospital stay (1.3 days [1.1-1.7 days] and 1.1 days [0.9-1.3 days]), and higher charges (US $16,779 [US $13,898-US $20,254] and US $14,299 [US $12,299-US $16,623]).

CONCLUSIONS

Targeted measures are needed toward patients at risk for DHR to curb the poor outcomes.

Opiate Prescriptions at Discharge Are Not Associated with Early Readmissions in Acute Pancreatitis

BACKGROUND

Early readmissions in acute pancreatitis (AP) are common. The impact of opiate prescriptions on readmissions is unknown.

AIMS

To determine whether the prescription of opiates at hospital discharge and the dose prescribed are associated with early readmissions in AP.

METHODS

Direct admissions from the Emergency Department (ED) for AP from September 1, 2013, to August 31, 2016 were identified. Opiate prescription was defined as a new prescription at discharge in an opiate-naïve patient. Early readmission was ED visit or hospitalization within 30 days for an AP-related reason. Multivariable logistic regression was performed, adjusted for age, Charlson Comorbidity Index, pancreatic necrosis, baseline opiate use, non-opiate analgesics, and pain score at discharge.

RESULTS

A total of 318 AP patients were identified; the overall early readmission rate was 18%. One hundred and twenty-one (38%) were prescribed opiates at discharge, and 22% had an early readmission. One hundred and ninety-seven (62%) were not prescribed opiates, and 16% had an early readmission. Median opiate dose was 48 mg (24-h morphine equivalents). On multivariable analysis, neither the prescription of opiates (OR 1.2, 95% CI 0.6-2.4, p = 0.55) nor the dose of opiates (OR 0.99, 95% CI 0.99-1.00, p = 0.39) was associated with early readmission. In subset analysis of patients discharged with an opiate prescription, those on opiates at baseline were significantly more likely to have an early readmission (OR 4.19, 95% CI 1.04-16.94, p = 0.04).

CONCLUSIONS

In AP patients, neither prescription of opiates at discharge nor prescribed dose was associated with early readmission. Patients on opiates at baseline discharged with an opiate prescription were more likely to have an early readmission.

Risk factors of recurrent pancreatitis after first acute pancreatitis attack: a retrospective cohort study

Background and aims: Few studies have been conducted in Asia on the recurrence of acute pancreatitis (AP). This study was designed to investigate characteristics of the disease to predict recurrence.Methods: We retrospectively analyzed 617 patients that experienced a first AP attack between January 2009 and December 2014. Based on reviews of clinical and follow-up data, we attempted to identify risk factors of recurrence using Cox regression analysis.Results: During a median follow-up of 3.2 years (range 3-72 months), 100(16.2%) of the 617 study subjects experienced one or more episodes of recurrent acute pancreatitis (RAP). Of these 100 patients, 75(75%) experienced one relapse, 12(12%) two relapses, and 13(13%) three or more relapses. The etiologies of RAP were an alcohol (48%), gallstone (31%), idiopathic (14%), and others (7%). Univariate analysis showed that an age of <60 years, male gender, smoking, an alcohol-associated etiology, and a local complication at index admission were significant risk factors of RAP. Cox regression analysis showed that an age of <60 years (HR = 1.602, 95% CI: 1.029-2.493), male gender (HR = 1.927, 95% CI: 1.127-3.295), and the presence of a local complication (HR = 3.334, 95% CI: 2.211-5.026) were significant risk factors of RAP development.Conclusion: A local complication at index admission was found to be the strongest risk factor of RAP, and a male gender and an age of <60 years were significantly associated with RAP. Special attention and close follow-up should be afforded to patients with a local complication at index admission or male patients <60 years old.

Opioid use disorder in admissions for acute exacerbations of chronic pancreatitis and 30-day readmission risk: A nationwide matched analysis

BACKGROUND

The opioid epidemic in the United States has been on the rise. Acute exacerbations of chronic pancreatitis (AECP) patients are at higher risk for Opioid Use Disorder (OUD). Evidence on OUD's impact on healthcare utilization, especially hospital re-admissions is scarce. We measured the impact of OUD on 30-day readmissions, in patients admitted with AECP from 2010 to 2014.

METHODS

This is a retrospective cohort study which included patients with concurrently documented CP and acute pancreatitis as first two diagnoses, from the National Readmissions Database (NRD). Pancreatic cancer patients and those who left against medical advice were excluded. We compared the 30-day readmission risk between OUD-vs.-non-OUD, while adjusting for other confounders, using multivariable exact-matched [(EM); 18 confounders; n = 28,389] and non-EM regression/time-to-event analyses.

RESULTS

189,585 patients were identified. 6589 (3.5%) had OUD. Mean age was 48.7 years and 57.5% were men. Length-of-stay (4.4 vs 3.9 days) and mean index hospitalization costs ($10,251 vs. $9174) were significantly higher in OUD-compared to non-OUD-patients (p < 0.001). The overall mean 30-day readmission rate was 27.3% (n = 51,806; 35.3% in OUD vs. 27.0% in non-OUD; p < 0.001). OUD patients were 25% more likely to be re-admitted during a 30-day period (EM-HR: 1.25; 95%CI: 1.16-1.36; p < 0.001), Majority of readmissions were pancreas-related (60%), especially AP. OUD cases' aggregate readmissions costs were $23.3 ± 1.5 million USD (n = 2289).

CONCLUSION

OUD contributes significantly to increased readmission risk in patients with AECP, with significant downstream healthcare costs. Measures against OUD in these patients, such as alternative pain-control therapies, may potentially alleviate such increase in health-care resource utilization.

High Rates of Readmission in Necrotizing Pancreatitis: Natural History or Opportunity for Improvement?

BACKGROUND

Necrotizing pancreatitis (NP) is a complex and heterogeneous disease with a protracted disease course. Hospital readmission is extremely common; however, few data exist regarding the cause of readmission in NP.

METHODS

A retrospective review of NP patients treated between 2005 and 2017 identified patients readmitted both locally and to our hospital. All patients with unplanned hospital readmissions were evaluated to determine the cause for readmission. Clinical and demographic factors of all patients were recorded. As appropriate, two independent group t tests and Pearson's correlation or Fisher's exact tests were performed to analyze the relationship between index admission clinical factors and readmission. p values of < 0.05 were accepted as statistically significant.

RESULTS

Six hundred one NP patients were reviewed. Median age was 52 years (13-96). Median index admission length of stay was 19 days (2-176). The most common etiology was biliary (49.9%) followed by alcohol (20.0%). Unplanned readmission occurred in 432 patients (72%) accounting for a total of 971 unique readmissions (mean readmissions/patient, 2.3). The most common readmission indications were symptomatic necrosis requiring supportive care and/or intervention (31.2%), infected necrosis requiring antibiotics and/or intervention (26.6%), failure to thrive (9.7%), and non-necrosis infection (6.6%). Patients requiring readmission had increased incidence of index admission renal failure (21.3% vs. 14.2%, p = 0.05) and cardiovascular failure (12.5% vs. 4.7%, p = 0.01).

DISCUSSION

Readmission in NP is extremely common. Significant portions of readmissions are a result of the disease natural history; however, a percentage of readmissions appear to be preventable. Patients with organ failure are at increased risk for unplanned readmission and will benefit from close follow-up.

Acute Biliary Pancreatitis is Associated With Adverse Outcomes in the Elderly: A Propensity Score-Matched Analysis

GOALS AND BACKGROUND

In the elderly (age, 65 y or older), acute pancreatitis is most frequently because of gallstones; however, there is a paucity of national estimates evaluating outcomes of acute biliary pancreatitis (ABP). Hence, we utilized a representative population database to evaluate the outcomes of ABP among the elderly.

STUDY

The National Readmission Database provides longitudinal follow-up of inpatients for 1 calendar-year. All adult inpatients (18 y or older) with an index primary admission for ABP between 2011 and 2014 were evaluated for clinical outcomes of mortality, severe acute pancreatitis (SAP), and 30-day readmission. Outcomes between age groups (≥65 vs. <65 y) were compared using multivariate and one-to-one propensity score-matched analyses.

RESULTS

Among 184,763 ABP admissions, 41% were elderly. Index mortality and SAP rates in the elderly were 1.96% and 21.5%, respectively. Elderly patients underwent more ERCPs (27.5% vs. 23.6%; P<0.001) and less frequent cholecystectomies (44.4% vs. 58.7%; P<0.001). Elderly patients had increased odds of mortality and SAP along with an age-dependent increase in the odds of adverse outcomes; patients aged 85 years or older demonstrated the highest odds of SAP [odds ratio (OR), 1.3; 95% confidence interval (CI): 1.2, 1.4] and mortality (OR, 2.2; 95% CI: 1.7, 2.9) within in the elderly cohort. Propensity score-matched analysis substantiated that mortality (OR, 2.8; 95% CI: 2.2, 3.5) and SAP (OR, 1.2; 95% CI: 1.1, 1.3) were increased in the elderly.

CONCLUSIONS

Current national survey reveals adverse clinical outcomes among elderly patients hospitalized with ABP. Consequently, there is a need for effective management strategies for this demographic as the aging population is increasing nationally.

New insights into acute pancreatitis

The incidence of acute pancreatitis continues to increase worldwide, and it is one of the most common gastrointestinal causes for hospital admission in the USA. In the past decade, substantial advancements have been made in our understanding of the pathophysiological mechanisms of acute pancreatitis. Studies have elucidated mechanisms of calcium-mediated acinar cell injury and death and the importance of store-operated calcium entry channels and mitochondrial permeability transition pores. The cytoprotective role of the unfolded protein response and autophagy in preventing sustained endoplasmic reticulum stress, apoptosis and necrosis has also been characterized, as has the central role of unsaturated fatty acids in causing pancreatic organ failure. Characterization of these pathways has led to the identification of potential molecular targets for future therapeutic trials. At the patient level, two classification systems have been developed to classify the severity of acute pancreatitis into prognostically meaningful groups, and several landmark clinical trials have informed management strategies in areas of nutritional support and interventions for infected pancreatic necrosis that have resulted in important changes to acute pancreatitis management paradigms. In this Review, we provide a summary of recent advances in acute pancreatitis with a special emphasis on pathophysiological mechanisms and clinical management of the disorder.

Accelerating the Drug Delivery Pipeline for Acute and Chronic Pancreatitis: Summary of the Working Group on Drug Development and Trials in Recurrent Acute Pancreatitis at the National Institute of Diabetes and Digestive and Kidney Diseases Workshop

Recurrent acute pancreatitis (RAP) is a complex clinical syndrome with significant morbidity, unpredictable outcomes, and limited treatment options. The National Institute of Diabetes and Digestive and Kidney Disease sponsored a workshop on July 25, 2018, in Pittsburgh, Pennsylvania, to address research gaps impeding development of effective therapies for pancreatitis. The RAP working group identified challenges to clinical progress using existing definitions, risk assessment, diagnostic and severity criteria, disease trajectories, outcomes, and research methods. Recurrent acute pancreatitis includes all the risk of acute pancreatitis and often progresses to chronic pancreatitis with variable complications of chronic pain, exocrine insufficiency, diabetes, and pancreatic cancer. However, the great variability among individuals with RAP requires better precision in defining the risks, individual episodes, as well as their frequency, pathogenic pathways, and specific outcome measures for each of the systems affected by pancreatic inflammation. Because of disease complexity, few patients are similar enough for traditional studies and methods to conduct clinical trials with small sample sizes are required. The need for genetic testing, biomarker development, and better imaging methods was highlighted. Adaptive and N-of-one study designs, better endpoints, and outcome measures including patient-reported outcomes should considered early in developing future therapeutic trial design and include all stakeholders.

Influence of Ambulatory Triglyceride Levels on Risk of Recurrence in Patients with Hypertriglyceridemic Pancreatitis

BACKGROUND AND AIMS

To evaluate impact of ambulatory triglyceride levels on risk of recurrent pancreatitis in patients with hypertriglyceridemic pancreatitis.

METHODS

We conducted a longitudinal retrospective cohort study of patients with serum triglyceride level ≥ 500 mg/dL during index hospitalization for acute pancreatitis within a regional integrated healthcare system between 2006 and 2013 (follow-up through 2015). Cases were identified based on combination of diagnosis codes and serum amylase/lipase. We used multivariable robust Poisson regression to determine independent effect of baseline (first outpatient) triglyceride measurement on risk of recurrent pancreatitis. Ambulatory triglyceride levels were categorized as normal (0-200 mg/dL), moderately elevated (201-500 mg/dL), and highly elevated (> 500 mg/dL). We further assessed factors related to likelihood of normalization of serum triglycerides (< 200 mg/dL) in the outpatient setting.

RESULTS

One hundred and fifty-one patients met study inclusion criteria with median follow-up of 3 years. Overall, 45 (29.8%) patients experienced at least 1 recurrent attack with 25 (16.6%) experiencing multiple episodes. In multivariable analysis, patients that continued to have moderately elevated ((adjusted rate ratio RR 5.47 (95% CL 1.80, 16.65)) as well as highly elevated (RR 8.45 (2.55, 27.96)) triglycerides were at increased risk of disease recurrence compared to patients that achieved normalization. Patients with triglyceride measurement performed within 30 days from discharge were more likely to achieve normalization, 40 versus 26%, p = 0.03.

CONCLUSIONS

For patients with hypertriglyceridemic pancreatitis, even modest elevation in subsequent triglyceride levels was associated with increased risk of recurrence. Future efforts should focus on ensuring timely care in the outpatient setting with a goal of normalizing triglycerides.

Exocrine Pancreatic Insufficiency Following Acute Pancreatitis: Systematic Review and Meta-Analysis

BACKGROUND/OBJECTIVES

The epidemiology of exocrine pancreatic insufficiency (EPI) after acute pancreatitis (AP) is uncertain. We sought to determine the prevalence, progression, etiology and pancreatic enzyme replacement therapy (PERT) requirements for EPI during follow-up of AP by systematic review and meta-analysis.

METHODS

Scopus, Medline and Embase were searched for prospective observational studies or randomized clinical trials (RCTs) of PERT reporting EPI during the first admission (between the start of oral refeeding and before discharge) or follow-up (≥ 1 month of discharge) for AP in adults. EPI was diagnosed by direct and/or indirect laboratory exocrine pancreatic function tests.

RESULTS

Quantitative data were analyzed from 370 patients studied during admission (10 studies) and 1795 patients during follow-up (39 studies). The pooled prevalence of EPI during admission was 62% (95% confidence interval: 39-82%), decreasing significantly during follow-up to 35% (27-43%; risk difference: - 0.34, - 0.53 to - 0.14). There was a two-fold increase in the prevalence of EPI with severe compared with mild AP, and it was higher in patients with pancreatic necrosis and those with an alcohol etiology. The prevalence decreased during recovery, but persisted in a third of patients. There was no statistically significant difference between EPI and new-onset pre-diabetes/diabetes (risk difference: 0.8, 0.7-1.1, P = 0.33) in studies reporting both. Sensitivity analysis showed fecal elastase-1 assay detected significantly fewer patients with EPI than other tests.

CONCLUSIONS

The prevalence of EPI during admission and follow-up is substantial in patients with a first attack of AP. Unanswered questions remain about the way this is managed, and further RCTs are indicated.

Same-admission versus delayed cholecystectomy for mild acute biliary pancreatitis: a systematic review and meta-analysis

BACKGROUND

The timing of laparoscopic cholecystectomy (LC) performed after the mild acute biliary pancreatitis (MABP) is still controversial. We conducted a review to compare same-admission laparoscopic cholecystectomy (SA-LC) and delayed laparoscopic cholecystectomy (DLC) after mild acute biliary pancreatitis (MABP).

METHODS

We systematically searched several databases (PubMed, EMBASE, Web of Science, and the Cochrane Library) for relevant trials published from 1 January 1992 to 1 June 2018. Human prospective or retrospective studies that compared SA-LC and DLC after MABP were included. The measured outcomes were the rate of conversion to open cholecystectomy (COC), rate of postoperative complications, rate of biliary-related complications, operative time (OT), and length of stay (LOS). The meta-analysis was performed using Review Manager 5.3 software (The Cochrane Collaboration, Oxford, United Kingdom).

RESULTS

This meta-analysis involved 1833 patients from 4 randomized controlled trials and 7 retrospective studies. No significant differences were found in the rate of COC (risk ratio [RR] = 1.24; 95% confidence interval [CI], 0.78-1.97; p = 0.36), rate of postoperative complications (RR = 1.06; 95% CI, 0.67-1.69; p = 0.80), rate of biliary-related complications (RR = 1.28; 95% CI, 0.42-3.86; p = 0.66), or OT (RR = 1.57; 95% CI, - 1.58-4.72; p = 0.33) between the SA-LC and DLC groups. The LOS was significantly longer in the DLC group (RR = - 2.08; 95% CI, - 3.17 to - 0.99; p = 0.0002). Unexpectedly, the subgroup analysis showed no significant difference in LOS according to the Atlanta classification (RR = - 0.40; 95% CI, - 0.80-0.01; p = 0.05). The gallstone-related complications during the waiting time in the DLC group included gall colic, recurrent pancreatitis, acute cholecystitis, jaundice, and acute cholangitis (total, 25.39%).

CONCLUSION

This study confirms the safety of SA-LC, which could shorten the LOS. However, the study findings have a number of important implications for future practice.

Cholecystectomy During Index Admission for Acute Biliary Pancreatitis Lowers 30-Day Readmission Rates

OBJECTIVES

Few studies have evaluated national readmission rates after acute pancreatitis (AP) in the United States. We sought to evaluate modifiable factors impacting 30-day readmissions after AP hospitalizations.

METHODS

We used the Nationwide Readmission Database (2013) involving all adults with a primary discharge diagnosis of AP. Multivariable logistic regression models assessed independent predictors for specific outcomes.

RESULTS

Among 180,480 patients with AP index admissions, 41,094 (23%) had biliary AP, of which 10.5% were readmitted within 30 days. The 30-day readmission rate for patients who underwent same-admission cholecystectomy (CCY) was 6.5%, compared with 15.1% in those who did not (P < 0.001). Failure of index admission CCY increased the risk of readmissions (odds ratio [OR], 2.27; 95% confidence interval [CI], 2.04-2.56). Same-admission CCY occurred in 55% (n = 19,274) of patients without severe AP. Severe AP (OR, 0.73; 95% CI, 0.65-0.81), sepsis (OR, 0.63; 95% CI, 0.52-0.75), 3 or more comorbidities (OR, 0.74; 95% CI, 0.68-0.79), and admissions to small (OR, 0.76; 95% CI, 0.64-0.91) or rural (OR, 0.78; 95% CI, 0.65-0.95) hospitals were less likely to undergo same-admission CCY.

CONCLUSIONS

Same-admission CCY should be considered in patients with biliary AP when feasible. This national appraisal recognizes modifiable risk factors to reduce readmission in biliary AP and reinforces adherence to major society guidelines.

The Pancreatitis Activity Scoring System predicts clinical outcomes in acute pancreatitis: findings from a prospective cohort study

OBJECTIVES

The Pancreatitis Activity Scoring System (PASS) has been derived by an international group of experts via a modified Delphi process. Our aim was to perform an external validation study to assess for concordance of the PASS score with high face validity clinical outcomes and determine specific meaningful thresholds to assist in application of this scoring system in a large prospectively ascertained cohort.

METHODS

We analyzed data from a prospective cohort study of consecutive patients admitted to the Los Angeles County Hospital between March 2015 and March 2017. Patients were identified using an emergency department paging system and electronic alert system. Comprehensive characterization included substance use history, pancreatitis etiology, biochemical profile, and detailed clinical course. We calculated the PASS score at admission, discharge, and at 12 h increments during the hospitalization. We performed several analyses to assess the relationship between the PASS score and outcomes at various points during hospitalization as well as following discharge. Using multivariable logistic regression analysis, we assessed the relationship between admission PASS score and risk of severe pancreatitis. PASS score performance was compared to established systems used to predict severe pancreatitis. Additional inpatient outcomes assessed included local complications, length of stay, development of systemic inflammatory response syndrome (SIRS), and intensive care unit (ICU) admission. We also assessed whether the PASS score at discharge was associated with early readmission (re-hospitalization for pancreatitis symptoms and complications within 30 days of discharge).

RESULTS

A total of 439 patients were enrolled, their mean age was 42 (±15) years, and 53% were male. Admission PASS score >140 was associated with moderately severe and severe pancreatitis (OR 3.5 [95% CI 2.0, 6.3]), ICU admission (OR 4.9 [2.5, 9.4]), local complications (3.0 [1.6, 5.7]), and development of SIRS (OR 2.9 [1.8, 4.5]) as well as prolongation of hospitalization by a mean of 1.5 (1.3-1.7) days. For the prediction of moderately severe/severe pancreatitis, the PASS score (AUC = 0.71) was comparable to the more established Ranson's (AUC = 0.63), Glasgow (AUC = 0.72), Panc3 (AUC = 0.57), and HAPS (AUC = 0.54) scoring systems. Discharge PASS score >60 was associated with early readmission (OR 5.0 [2.4, 10.7]).

CONCLUSIONS

The PASS score is associated with important clinical outcomes in acute pancreatitis. The ability of the score to forecast important clinical events at different points in the disease course suggests that it is a valid measure of activity in patients with acute pancreatitis.

Recurrent biliary acute pancreatitis is frequent in a real-world setting

BACKGROUND

Data about recurrent acute pancreatitis (RAP) are limited.

AIMS

To evaluate the rate of RAP and associated factors.

METHODS

Single-centre prospective study of consecutive patients at first episode of acute pancreatitis (AP) being followed-up.

RESULTS

Of 266 consecutive AP patients, (47% biliary, 15.4% alcoholic, 14.3% idiopathic) 66 (24.8%) had RAP in a mean follow-up of 42 months; 17.9% of recurrences occurred within 30 days from discharge. Age, gender, smoking and severity of first AP were not associated with RAP risk. The rate of biliary RAP was 31.3% in patients who did not receive any treatment, 18% in those treated with ERCP only, 16% in those who received cholecystectomy only, and 0% in those treated both with surgery and ERCP. Patients with biliary AP who received cholecystectomy had a significantly longer time of recurrence-free survival and reduced recurrence risk (HR = 0.45). In patients with alcoholic AP, the rate of recurrence was lower in those who quit drinking (5.8% vs 33%; p = 0.05). The alcoholic aetiology was associated with a higher risk of having >2 RAP episodes.

CONCLUSION

RAP occurs in about 25% of cases, and failure to treat biliary aetiology or quitting drinking is associated with increased recurrence risk.

Rate of recurrence in Indian patients presenting with acute pancreatitis and identification of chronicity on follow up: Possible risk factors for progression

BACKGROUND

To study the profile and long-term outcome of Indian patients presenting with acute pancreatitis and the possible risk factors for progression.

METHODS

Consecutive patients with acute or recurrent acute pancreatitis seen in our department during July 2013 to December 2014 were included. Details of past episodes were collected and patients were followed up till March 2015.

RESULTS

In the 97 patients included (mean age 47.2 [SD 16.9] years; 74 men), gallstones (37 [38.1%]) and alcohol (19 [19.6%]) were the major identified etiologies; the idiopathic (31 [32%]) group constituted a third of patients. Recurrences were more common with idiopathic etiology (14 patients out of 30 had recurrences [46.7%]) as compared to alcoholic (5 out of 19 [26.3%]) and biliary (4 out of 37 [10.8%]) pancreatitis and with mild index episode. Following the episode of acute pancreatitis, identification of chronic pancreatitis was more common with alcoholic (6 out of 18 [33%]) and idiopathic (9 out of 30 [30%]) etiology as compared to other etiologies. Longer duration of follow up, but not number of recurrent episodes, was associated with identification of chronicity in patients presenting as acute pancreatitis.

CONCLUSIONS

Out of 97 patients with acute pancreatitis, 27 (27.8%) developed recurrences with risk factors being idiopathic etiology and mild index episode. Eighteen of 97 (18.6%) patients had evidence of chronic pancreatitis on follow up, risk factors being the alcoholic and idiopathic varieties, and longer duration of follow up.