Chronic pancreatitis

Chronic pancreatitis is a progressive fibroinflammatory disease primarily caused by a complex interplay of environmental and genetic risk factors. It might result in pancreatic exocrine and endocrine insufficiency, chronic pain, reduced quality of life, and increased mortality. The diagnosis is based on the presence of typical symptoms and multiple morphological manifestations of the pancreas, including pancreatic duct stones and strictures, parenchymal calcifications, and pseudocysts. Management of chronic pancreatitis consists of prevention and treatment of complications, requiring a multidisciplinary approach focusing on lifestyle modifications, exocrine insufficiency, nutritional status, bone health, endocrine insufficiency, pain management, and psychological care. To optimise clinical outcomes, screening for complications and evaluation of treatment efficacy are indicated in all patients with chronic pancreatitis.

Analysis of clinical characteristics of hemorrhagic fever with renal syndrome with acute pancreatitis: a retrospective study

OBJECTIVE

This research aimed to analyze the impact of hemorrhagic fever with renal syndrome (HFRS) with acute pancreatitis (AP) on the severity and prognosis of patients, screen the risk factors of HFRS with AP, and establish a nomogram model.

METHODS

Data were collected from HFRS patients at the First Affiliated Hospital of Dali University and Dali Prefecture People's Hospital (2013-2023). Patients were divided into HFRS with AP (n = 34) and HFRS without AP groups (n = 356). Propensity Score Matching (PSM) and logistic regression analyzed the impact of AP on HFRS severity and short-term prognosis. LASSO-Logistic regression was used to screen risk factors and develop a nomogram model.

RESULTS

After PSM, HFRS patients with AP had higher rates of Continuous Renal Replacement Therapy (CRRT) and/or mechanical ventilation use, , ICU admission, and 30-day mortalitycompared with those without AP (p < 0.05). Further analysis revealed that smoking (OR: 3.702), ferritin (OR: 1.002), white blood cell (OR), fibrinogen (OR: 0.463), and platelet (OR: 0.987) were risk factors for HFRS with AP (p < 0.05). A nomogram model was constructed based on these factors, to predict the risk of HFRS with AP, with an Area Under the Curve (AUC) of 0.90 (95% CI: 0.84-0.95). Additionally, the model calibration curve fit well according to the Hosmer-Lemeshow test (χ2=8.51, p = 0.39).

CONCLUSION

Patients with HFRS with AP exhibit higher disease severity and poorer prognosis. Smoking, elevated ferritin and white blood cell levels, decreased fibrinogen and platelet levels are more susceptible to developing AP.

Exploring the mechanism of intestinal bacterial translocation after severe acute pancreatitis: the role of Toll-like receptor 5

Severe acute pancreatitis (SAP)-induced intestinal bacterial translocation and enterogenic infection are among the leading causes of mortality in patients. However, the mechanisms by which SAP disrupted the intestinal barrier and led to bacterial translocation remained unclear. Therefore, we employed multi-omics analysis including microbiome, metabolome, epigenome, transcriptome, and mass cytometry (CyTOF) to identify potential targets, followed by functional validation using transgenic mice. The integrated multi-omics analysis primarily indicated overgrowth of intestinal flagellated bacteria, upregulation of intestinal Toll-like receptor 5 (TLR5) and acute inflammatory response, and increased infiltration of intestinal high-expressing TLR5 lamina propria dendritic cells (TLR5hi LPDC) after SAP. Subsequently, intestinal flagellin-TLR5 signaling was activated after SAP. Intestinal barrier disruption, bacterial translocation, and helper T cells (Th) differentiation imbalance caused by SAP were alleviated in TLR5 knocked out (Tlr5-/-) or conditionally knocked out on LPDC (Tlr5ΔDC) mice. However, TLR5 conditional knockout on intestinal epithelial cells (Tlr5ΔIEC) failed to improve SAP-induced bacterial translocation. Moreover, depletion of LPDC and regulatory T cells (Treg) ameliorated bacterial translocation after SAP. Our findings identify TLR5 on LPDC as a potential novel target for preventing or treating intestinal bacterial translocation caused by SAP.

Pseudotargeted metabolomics profiles potential damage-associated molecular patterns as machine learning predictors for acute pancreatitis

Acute pancreatitis (AP) is a common gastrointestinal disease characterized by pancreatic cell damage and inflammation. Given the early clinical diagnosis and management challenges, exploring novel analytical frameworks from new orientations for interrogating AP is urgent. The release of damage-associated molecular patterns (DAMPs) and their receptor recognition initiate sterile inflammation, serving as key drivers in the development and progression of AP. Thus, this study aimed to delineate the underlying correlations between alterations in the DAMP profile and the AP state. We have developed a new framework combining potential DAMPs profiles obtained from pseudotargeted metabolomics method with machine learning (ML) models for AP prediction. 2-(1-Piperazinyl) pyrimidine chemical labeling was utilized to provide characteristic fragment ions and improve the quantitative sensitivity of targeted metabolites. A total of 49 potential DAMPs were identified and semi-quantified from collected serum samples (n = 84), positive or negative for APs. For modeling obtained datasets with five different ML algorithms, the support vector machine model was chosen as the optimal model to differentiate with high accuracy, achieving an area under the receiver-operating characteristic curve (AUROC) of 0.944. It also showed a strong performance in an external independent validation set (AUROC: 0.907). Moreover, the model was interpreted using the Shapley Additive exPlanations analysis to specify the important features and identify specific free fatty acids as key contributors. Overall, the novel framework enables high accuracy in predicting the presence of AP status. Meanwhile, it underlines the utility of DAMPs in inflammatory diseases and provides reference values for diagnosing in first-line clinics.

Design and rationale of the CORE-TIMI 72a and CORE2-TIMI 72b trials of olezarsen in patients with severe hypertriglyceridemia

BACKGROUND

Severe hypertriglyceridemia (HTG), defined as a serum triglyceride (TG) concentration ≥500 mg/dl, is present in approximately 1 in every 100 individuals and carries direct clinical consequences, including pancreatitis, which can be life-threatening. Olezarsen is an investigational antisense oligonucleotide targeted to the mRNA for apolipoprotein C-III (apoC-III), a protein known to impair TG clearance by inhibiting lipoprotein lipase and the hepatic uptake of triglyceride-rich remnants. No dedicated trial has tested olezarsen in patients with severe HTG.

METHODS

In these 2 pivotal phase 3 trials, CORE-TIMI 72a and CORE2-TIMI 72b, patients with severe HTG were randomized in a 2:1 fashion to either olezarsen (80 mg or 50 mg dose) or matching placebo. Patients will be treated for a total of 12 months and evaluated for the primary endpoint of percent change in TGs from baseline to 6 months compared with placebo. Pooled analyses of CORE and CORE2 will also assess olezarsen's effect on acute pancreatitis events and change in hepatic steatosis.

RESULTS

A total of 617 subjects in CORE-TIMI 72a and 446 subjects in CORE2-TIMI 72b were randomized. In these 2 trials, the median age was 54 and 55 years, women made up 24% and 23% of the study population, and the baseline TGs were 836 mg/dl and 749 mg/dl, respectively. A total of 333 subjects, 129 from CORE-TIMI 72a and 204 from CORE2-TIMI 72b, were enrolled in the hepatic MRI substudy.

DISCUSSION

Together, CORE-TIMI 72a and CORE2-TIMI 72b are designed to establish the efficacy and safety of olezarsen in patients with severe HTG.

TRIAL REGISTRATION

Clinicaltrials.gov: NCT05079919 and NCT05552326.

Dysfunction of pancreatic exocrine secretion after experimental spinal cord injury

Pancreatic exocrine dysfunction is an underdiagnosed comorbidity in individuals living with spinal cord injury (SCI) who often present cholestasis, acute pancreatitis or high levels of serum pancreatic enzymes. Parasympathetic control of pancreatic exocrine secretion (PES) is mediated in the medullary dorsal vagal complex in part through cholecystokinin (CCK) release. Our previous reports indicate high thoracic (T3-) SCI reduces vagal afferent sensitivity to GI regulatory peptides, like CCK and thyrotropin releasing hormone (TRH). To date, the effects of experimental SCI on PES are unknown. Here we investigated the modulation of PES following T3-SCI in rats. We measured PES volume and amylase concentration in control and T3-SCI rats (3-days or 3-weeks after injury) following: (i) intra-duodenal administration of a mixed-nutrient liquid meal (Ensure® ™) or (ii) central TRH injection (100 pmol) in the dorsal motor nucleus of the vagus. In a separate cohort of overnight-fasted rats, basal serum amylase levels were measured. The baseline volume of PES secretion was lower in 3-week rats destined to receive Ensure® or TRH following T3-SCI surgery compared to control. PES protein concentration was significantly reduced at baseline in 3-week T3-SCI and elevated in 3-day and 3-week T3-SCI rats postprandially but only elevated in 3-day rats following TRH microinjection. Serum amylase activity levels were elevated in 3-day T3-SCI rats and remained at similar levels post 3-weeks T3-SCI. Our data suggest that vagally-mediated regulation of multiple visceral organs is disrupted in the days and weeks following experimental SCI.

Left Hepatectomy Enlarged to Segment 1 with Total Vascular Exclusion of the Liver Preserving the Caval Flow with Temporary Portacaval Shunt and Hypothermic Oxygenated Portal Perfusion on Machine for Metastatic Recurrence of a Pleural Chondrosarcoma

BACKGROUND

Total vascular exclusion (TVE) of the liver preserving the caval flow with portal hypothermic perfusion and temporary portacaval shunt (PCS) is a validated technique for tumors invading the hepatic veins (HV) close to their confluence with the inferior vena cava (IVC). It prevents the risk of haemorrhage, gas embolism and avoids the haemodynamic consequences of clamping the IVC and veno-venous bypass. No published cases have reported using hypothermic oxygenated perfusion machine.

PATIENTS AND METHODS

The patient was a 58-year-old woman presenting a recurrent metastatic pleural chondrosarcoma, with a pleural metastasis and several intra-abdominal metastases, including a lesion localized in segment 1 close to the hilar plate and invading the left HV near its abutment in the IVC. A left hepatectomy enlarged to segment 1 was performed under TVE preserving the caval flow with in situ hypothermic portal perfusion of the liver using perfusion machine.

RESULTS

PV clamping lasted 57 min, and 2 l of preservative solution were perfused. The maximum pressure in the PV was 10 mmHg and oxygen flow was regulated at 2 L/min. The resection was complete and margins were negative. Liver temperature was monitored at 5-6 °C. Postoperative follow-up was favourable, with hospital discharge at 16 days after surgery.

DISCUSSION

The use of hypothermic oxygenated perfusion machine is therefore possible in this technique. In parallel with the results obtained in liver transplantation on marginal grafts, it could probably reduce ischemia-reperfusion injury of the remnant parenchyma compared with static cold storage and improve post-operative outcome.

MRI and CT radiomics for the diagnosis of acute pancreatitis

Purpose

To evaluate the single and combined diagnostic performances of CT and MRI radiomics for diagnosis of acute pancreatitis (AP).

Materials and methods

We prospectively enrolled 78 patients (mean age 55.7 ± 17 years, 48.7 % male) diagnosed with AP between 2020 and 2022. Patients underwent contrast-enhanced CT (CECT) within 48-72 h of symptoms and MRI ≤ 24 h after CECT. The entire pancreas was manually segmented tridimensionally by two operators on portal venous phase (PVP) CECT images, T2-weighted imaging (WI) MR sequence and non-enhanced and PVP T1-WI MR sequences. A matched control group (n = 77) with normal pancreas was used. Dataset was randomly split into training and test, and various machine learning algorithms were compared. Receiver operating curve analysis was performed.

Results

The T2WI model exhibited significantly better diagnostic performance than CECT and non-enhanced and venous T1WI, with sensitivity, specificity and AUC of 73.3 % (95 % CI: 71.5-74.7), 80.1 % (78.2-83.2), and 0.834 (0.819-0.844) for T2WI (p = 0.001), 74.4 % (71.5-76.4), 58.7 % (56.3-61.1), and 0.654 (0.630-0.677) for non-enhanced T1WI, 62.1 % (60.1-64.2), 78.7 % (77.1-81), and 0.787 (0.771-0.810) for venous T1WI, and 66.4 % (64.8-50.9), 48.4 % (46-50.9), and 0.610 (0.586-0.626) for CECT, respectively.The combination of T2WI with CECT enhanced diagnostic performance compared to T2WI, achieving sensitivity, specificity and AUC of 81.4 % (80-80.3), 78.1 % (75.9-80.2), and 0.911 (0.902-0.920) (p = 0.001).

Conclusion

The MRI radiomics outperformed the CT radiomics model to detect diagnosis of AP and the combination of MRI with CECT showed better performance than single models. The translation of radiomics into clinical practice may improve detection of AP, particularly MRI radiomics.

Necrosectomy and its timing in relation to clinical outcomes of EUS-guided treatment of walled-off pancreatic necrosis: a multicenter study

BACKGROUND AND AIMS

EUS-guided transmural drainage with on-demand endoscopic necrosectomy (EN) is increasingly used to manage walled-off necrosis (WON). It has not been fully elucidated how EN and its timing are correlated with treatment outcomes compared with the drainage-based approach.

METHODS

Within a multi-institutional cohort of 423 patients with pancreatic fluid collections, including 227 patients with WON, 153 patients were identified who received the step-up treatment after the initial EUS-guided drainage of symptomatic WON; this included 102 EN patients and 51 non-EN (drainage) patients. Using the competing-risks multivariable proportional hazards regression model with adjustment for potential confounders, we calculated subdistribution hazard ratios (SHRs) for clinical treatment success (WON resolution) according to use of EN and its timing.

RESULTS

Compared with drainage alone, the EN-based treatment was associated with a shorter time to clinical success with a multivariable SHR of 1.66 (95% confidence interval, 1.12-2.46). Despite a higher risk of procedure-related bleeding in the EN group, there were no differences in the rates of severe adverse events (7.8% vs 5.9% in the EN and non-EN groups, respectively) or mortality (6.9% vs 9.8%). In the EN-treated patients, the timing of EN was not statistically significantly associated with the time to clinical success (Ptrend = .34).

CONCLUSIONS

Among patients receiving EUS-guided treatment of symptomatic WON, the use of EN in addition to drainage procedures was associated with earlier disease resolution. Further research is desired to determine the optimal timing of initiating EN considering a risk-benefit balance and cost-effectiveness.

Artificial intelligence and the impact of multiomics on the reporting of case reports

The integration of artificial intelligence (AI) and multiomics has transformed clinical and life sciences, enabling precision medicine and redefining disease understanding. Scientific publications grew significantly from 2.1 million in 2012 to 3.3 million in 2022, with AI research tripling during this period. Multiomics fields, including genomics and proteomics, also advanced, exemplified by the Human Proteome Project achieving a 90% complete blueprint by 2021. This growth highlights opportunities and challenges in integrating AI and multiomics into clinical reporting. A review of studies and case reports was conducted to evaluate AI and multiomics integration. Key areas analyzed included diagnostic accuracy, predictive modeling, and personalized treatment approaches driven by AI tools. Case examples were studied to assess impacts on clinical decision-making. AI and multiomics enhanced data integration, predictive insights, and treatment personalization. Fields like radiomics, genomics, and proteomics improved diagnostics and guided therapy. For instance, the “AI radiomics, genomics, oncopathomics, and surgomics project” combined radiomics and genomics for surgical decision-making, enabling preoperative, intraoperative, and postoperative interventions. AI applications in case reports predicted conditions like postoperative delirium and monitored cancer progression using genomic and imaging data. AI and multiomics enable standardized data analysis, dynamic updates, and predictive modeling in case reports. Traditional reports often lack objectivity, but AI enhances reproducibility and decision-making by processing large datasets. Challenges include data standardization, biases, and ethical concerns. Overcoming these barriers is vital for optimizing AI applications and advancing personalized medicine. AI and multiomics integration is revolutionizing clinical research and practice. Standardizing data reporting and addressing challenges in ethics and data quality will unlock their full potential. Emphasizing collaboration and transparency is essential for leveraging these tools to improve patient care and scientific communication.

Influencing factor analysis and clinical efficacy of early intervention in severe acute pancreatitis with persistent organ failure

This study aims to analyze the risk factors requiring early intervention in severe acute pancreatitis (SAP) patients with persistent organ failure and evaluate the clinical outcomes following treatment. This was a retrospective observational study. Inverse probability treatment weighting using propensity score methods was employed to balance baseline characteristics. Univariate and multivariate logistic regression analyses were performed to identify risk factors associated with early intervention. Smooth curve fitting was applied to explore potential relationships between variables and intervention timing. Threshold effect analysis was conducted to identify the optimal inflection point in nonlinear relationship. A total of 310 patients were included in this study. Compared to the standard treatment group (n = 162), the early intervention group (n = 148) had a higher proportion of multiple organ failure (77.1% vs. 63.6%, P = 0.021) and higher mortality (27.7% vs. 16.0%, P = 0.013), but early intervention was not significantly associated with adverse outcome (OR 1.52, 95% CI 0.71-3.26, P = 0.283). Risk factors associated with early intervention included computed tomography severity index, SOFA score, intra-abdominal pressure (IAP), and remifentanil equivalents. Among these, the SOFA score showed a negative linear relationship with intervention timing, while distinct threshold effects were observed between IAP, remifentanil equivalents, and intervention timing. One week after intervention, most patients showed improved organ function, along with reduced requirements for sedation and analgesia, as well as decreased C-reactive protein level levels and IAP (all P < 0.05). SAP patients requiring early intervention tended to have higher disease severity. Although early intervention can improve short-term organ function, reduce IAP, and lower analgesic requirements, its impact on reducing mortality remains uncertain.

Effect of proton pump inhibitors on occlusion of lumen-apposing metal stents and rate of endoscopic necrosectomies: a Europe-wide multicenter cohort study

BACKGROUND

 Lumen-apposing metal stents (LAMS) are widely used to drain walled-off necrosis (WON). LAMS occlusion is a significant clinical problem and identification of risk factors for LAMS occlusion could contribute to novel preventive strategies. A previous study suggested contradictory effects of proton pump inhibitors (PPIs) on occlusion and necrosectomy rates.

METHODS

 We conducted a Europe-wide multicenter retrospective cohort study assessing WONs drained by LAMS. The primary aims were to assess the strength of association between PPI intake and LAMS occlusion and necrosectomy rates, respectively. The secondary aim was to assess the strength of association between PPI intake and other LAMS-associated complications. Multiple mixed-effects models were used to control for possible confounding covariates.

RESULTS

 893 patients with 967 LAMS from 17 centers were included. After excluding incomplete datasets and patients who took PPIs intermittently, 768 LAMS remained. The overall occlusion rate was 28.0 %. Most occlusions occurred within 10 days. Most patients received PPIs continuously (n = 577 vs. no intake n = 191). In patients who did not use PPIs continuously, lower rates of LAMS occlusion (odds ratio [OR] 0.61, P = 0.04) and necrosectomies (incidence rate ratio 0.8, P = 0.006) were observed. A post hoc analysis exhibited a dose- and compound-dependent effect of PPI intake on necrosectomy rate. No increase in other complications in the non-PPI group, such as bleeding events (OR 1.14) were observed.

CONCLUSION

 PPI intake was associated with higher rates of LAMS occlusion and necrosectomy.

Immunodynamic axis of fibroblast-driven neutrophil infiltration in acute pancreatitis: NF-κB-HIF-1α-CXCL1

BACKGROUND

Acute pancreatitis (AP) is a sterile inflammation, and 10-20% of cases can progress to severe acute pancreatitis (SAP), which seriously threatens human life and health. Neutrophils and their extracellular traps (NETs) play an important role in the progression of AP. However, the immunodynamic factors between the excessive infiltration of neutrophils during the occurrence of AP have not been fully elucidated.

METHODS

Adult male C57BL/6 J mice were selected. An AP model was induced by cerulein, and a control group was set up. Single-cell sequencing technology was used to reveal the cell atlas of AP pancreatitis tissue. In vivo, the model mice were treated with anti-Ly6G antibody, DNase I, SC75741, PX-478, and SRT3109 respectively. In vitro, human pancreatic stellate cells were treated with hypoxia, H2O2, NAC, and JSH-2, and co-cultured with neutrophils in Transwell chambers. The severity of inflammation was evaluated, and the molecular mechanism by which fibroblasts exacerbate AP was revealed through techniques such as cell colony formation assay, cell migration assay, cell transfection, immunofluorescence, flow cytometry, Western blot, reverse-transcription quantitative polymerase chain reaction (RT-qPCR), and co-immunoprecipitation (co-IP).

RESULTS

The study showed that the elimination of neutrophils and NETs could significantly improve AP. Single-cell RNA sequencing (scRNA-seq) indicated that both neutrophils and fibroblasts in pancreatic tissue exhibited heterogeneity during AP. Among them, neutrophils highly expressed CXCR2, and fibroblasts highly expressed CXCL1. Further experimental results demonstrated that the infiltration of neutrophils in the early stage of AP was related to the activation of fibroblasts. The activation of fibroblasts depended on the nuclear factor kappa B (NF-κB) signaling pathway induced by hypoxia. NF-κB enhanced the activation of pancreatic stellate cells (PSCs) and the secretion of CXCL1 by directly promoting the transcription of HIF-1α and indirectly inhibiting PHD2, resulting in the accumulation of HIF-1α protein. The NF-κB-HIF-1α signal promoted the secretion of CXCL1 by fibroblasts through glycolysis and induced the infiltration of neutrophils. Finally, blocking the NF-κB-HIF-1α-CXCL1 signaling axis in vivo reduced the infiltration of neutrophils and improved AP.

CONCLUSIONS

This study, for the first time, demonstrated that activation of fibroblasts is one of the immunological driving factors for neutrophil infiltration and elucidated that glycolysis driven by the NF-κB-HIF-1α pathway is the intrinsic molecular mechanism by which fibroblasts secrete CXCL1 to chemotactically attract neutrophils. This finding provides a highly promising target for the treatment of AP.

Costs of robot-assisted vs. open approaches for 5 major cancers

To test for differences in total hospital cost (THC) between robot-assisted vs. open major cancer surgeries, colectomy, esophagectomy, radical hysterectomy, lung resection and pancreatectomy. Within the National Inpatient Sample (2016-2019), we identified all robot-assisted vs. open procedures for the above stated surgeries. Multivariable Poisson regression models were fitted. Of all surgeries, 6830 (14%) were robot-assisted colectomies, 333 (7%) esophagectomies, 5985 (24%) radical hysterectomies, 6500 (21%) lung resections and 449 (4%) pancreatectomies. Relative to open surgery, robot-assisted esophagectomy (181,462 vs. 96,195 $, Δ = 85,267 $), pancreatectomy (123,872 vs. 95,707 $, Δ = 28,168 $), lung resection (93,910 vs. 80,770 $, Δ = 13,140 $) and colectomy (82,898 vs. 71,279 $, Δ = 11,619 $) were associated with higher THC (all p < 0.001), except for radical hysterectomy (63,793 vs. 62,558 $, p = 0.8). After multivariable adjustment for patient and hospital characteristics, robot-assisted esophagectomy (risk ratio [RR]: 1.40), robot-assisted pancreatectomy (RR: 1.24), robot-assisted colectomy (RR: 1.20), robot-assisted lung resection (RR: 1.11) as well as robot-assisted radical hysterectomy (RR: 1.10) independently predicted higher THC (all p < 0.001). For the five examined procedures, THC are invariably higher when the robot-assisted approach is used. This THC disadvantage of the robot-assisted approach requires a careful consideration to the other benefits of robotic-assisted surgery, such as shorter convalescence and earlier return to regular activities, that could not be addressed in the current analysis.

Mechanisms through which laparoscopic sleeve gastrectomy mitigates atherosclerosis risk: a focus on visceral adipose tissue

Bariatric surgery is currently considered the key treatment method for patients with obesity and related complications. Among the various surgeries, laparoscopic sleeve gastrectomy (LSG) is the most widely used. Obesity is a multifactor chronic disease characterized by the accumulation of visceral adipose tissue (VAT), leading to susceptibility to cardiac metabolic diseases. Many mechanisms, including abnormal lipid metabolism, insulin resistance, inflammation, endothelial dysfunction, adipocytokine imbalance and inflammasome activation, have been identified as the basis for the relationship between obesity and atherosclerosis. Bariatric surgery, such as LSG, reduces the risk of atherosclerosis in people living with obesity by reducing energy intake, disrupting energy balance and reducing the secretion of intestinal hormones to intervene in these risk factors. This review explores the current understanding of how LSG affects VAT and its impact on the risk of atherosclerosis.

Octreotide attenuates experimental severe acute pancreatitis through inhibiting pyroptosis and modulating intestinal homeostasis

Severe acute pancreatitis (SAP) is a common clinical condition characterized by acute abdominal symptoms. Octreotide (OCT) is a commonly prescribed treatment for acute pancreatitis (AP). Recent research shows that pyroptosis and intestinal homeostasis significantly contribute to the progression of AP. However, it remains unclear whether OCT treats SAP through modulating pyroptosis and intestinal microbiota. Our study aimed to investigate and validate the potential therapeutic effects of OCT on SAP and underlying mechanisms. The inhibition of pyroptosis in mice using disulfiram was investigated to elucidate the role of pyroptosis in AP. Molecular biology experiments confirmed that OCT effectively inhibited the expression of pyroptosis-related markers. Additionally, the composition, abundance, and functionality of the intestinal microbiota were analyzed using 16S rRNA sequencing, while short-chain fatty acids (SCFAs) were quantified by targeted metabolomics. Our study demonstrated that the administration of OCT significantly mitigated the severity of SAP in a dose-dependent manner. Furthermore, the inhibition of pyroptosis in mice attenuated SAP, thereby highlighting the critical role of pyroptosis in this condition. OCT administration was observed to suppress the expression of key pyroptosis markers. Additionally, there was a notable reduction in intestinal permeability and bacterial translocation. OCT reverses gut dysbiosis caused by SAP, increasing beneficial bacteria while inhibiting pathogenic strains. Furthermore, OCT administration enhanced the levels of SCFAs, including propanoic acid, acetic acid, and butyric acid. Our findings indicate OCT has the potential to alleviate SAP by suppressing pyroptosis and restoring intestinal homeostasis.

The predictive efficacy of dynamic level changes of plasma endothelial microparticles and plasma soluble thrombomodulin on the prognosis of severe acute pancreatitis

OBJECTIVE

To investigate the predictive efficacy of dynamic level changes of plasma endothelial microparticles (EMP) and plasma soluble thrombomodulin (sTM) on the prognosis of severe acute pancreatitis (SAP).

METHODS

This study retrospectively selected 128 eligible SAP patients admitted to our hospital from May 2021 to April 2023. According to the final outcome, the patients were grouped as the survival group (n = 95) and death group (n = 33). The EMP, sTM and microcirculation related indexes (lactic acid level, central venous pressure (CVP), mean arterial pressure (MAP)) of SAP patients were monitored at admission, 24 h, 48 h and 72 h after admission. Pearson was adopted to analyze the correlation between EMP and sTM levels with microcirculation disorder related indicators. The levels of EMP and sTM were compared between the survival group and the death group. The EMP high level group was ≥ 150.00 ng / mL, and the EMP low level group was < 150.00 ng / mL. The sTM high-level group was ≥ 300.00 ng / mL, and the low-level group was < 300.00 ng / mL. The differences in survival curves between different groups were compared by Kaplan-Meier. AUC was used to analyze the prognostic value of EMP and sTM levels alone and in combination in SAP patients.

RESULTS

Compared with admission, the levels of EMP, sTM, lactic acid and CVP in 128 SAP patients were all significantly increased at 24 h, 48 h and 72 h after admission, but the MAP was largely decreased (p < 0.05). EMP and sTM were positively correlated with lactic acid and CVP respectively, but negatively correlated with MAP (p < 0.05). The death group had much higher levels of EMP and sTM than the survival group (p < 0.05). From the perspective of 1-year survival rate, the high-level group of EMP was lower than the low-level group (p < 0.05) and the high-level group of sTM was lower than the low-level group (p < 0.05). ROC curve analysis confirmed that the sensitivity and specificity of combined detection were 92.39% and 90.54%, respectively, with the AUC of 0.903 (95%CI:0.863-0.928), which was significantly higher than that of single detection (p < 0.05).

CONCLUSION

The levels of EMP and sTM were significantly increased in SAP patients, which were closely related to microcirculation disorders and poor prognosis. The combined detection of EMP and sTM has significant prognostic value in SAP.

Application of deep learning models for accurate classification of fluid collections in acute necrotizing pancreatitis on computed tomography: a multicenter study

PURPOSE

To apply CT-based deep learning (DL) models for accurate solid debris-based classification of pancreatic fluid collections (PFC) in acute pancreatitis (AP).

MATERIAL AND METHODS

This retrospective study comprised four tertiary care hospitals. Consecutive patients with AP and PFCs who had computed tomography (CT) prior to drainage were screened. Those who had magnetic resonance imaging (MRI) or endoscopic ultrasound (EUS) within 20 days of CT were considered for inclusion. Axial CT images were utilized for model training. Images were labelled as those with≤30% solid debris and >30% solid debris based on MRI or EUS. Single center data was used for model training and validation. Data from other three centers comprised the held out external test cohort. We experimented with ResNet 50, Vision transformer (ViT), and MedViT architectures.

RESULTS

Overall, we recruited 152 patients (129 training/validation and 23 testing). There were 1334, 334 and 512 images in the training, validation, and test cohorts, respectively. In the overall training and validation cohorts, ViT and MedVit models had high diagnostic performance (sensitivity 92.4-98.7%, specificity 89.7-98.4%, and AUC 0.908-0.980). The sensitivity (85.3-98.6%), specificity (69.4-99.4%), and AUC (0.779-0.984) of all the models was high in all the subgroups in the training and validation cohorts. In the overall external test cohort, MedViT had the best diagnostic performance (sensitivity 75.2%, specificity 75.3%, and AUC 0.753). MedVit had sensitivity, specificity, and AUC of 75.2%, 74.3%, and 0.748, in walled off necrosis and 79%, 74.2%, 75.3%, and 0.767 for collections >5 cm.

CONCLUSION

DL-models have moderate diagnostic performance for solid-debris based classification of WON and collections greater than 5 cm on CT.

Evaluation of sternal recumbency for laparoscopic right lateral liver lobectomy through a transdiaphragmatic port in a canine cadaveric population

OBJECTIVE

To evaluate the feasibility of laparoscopic right lateral liver lobectomy in canine cadavers positioned in sternal recumbency with the aid of an intrathoracic transdiaphragmatic trocar (ITT).

STUDY DESIGN

Ex vivo cadaveric study.

SAMPLE POPULATION

Thirteen canine cadavers.

METHODS

All cadavers underwent laparoscopic right lateral liver lobectomy in sternal recumbency with ITT placement using either laparoscopic stapling or suture loop equipment. Body weight, total surgical time, liver lobectomy time, and surgical complications were documented. After all liver lobectomies, the livers were harvested, and the weight of the liver lobes and distance to the hilus were recorded.

RESULTS

All liver lobectomies were completed successfully, with two ports placed on the right lateral abdomen and one ITT port. Median total surgical time was 35.5 min (range, 25.1-62.8), median liver lobectomy time was 18.5 min (range, 6.5-42.9), and three cases experienced loss of insufflation due to ITT port failure. A moderate correlation between the weight of the right liver lobe and a longer liver lobectomy time (rs = .73, p = .0042) was found.

CONCLUSION

All right lateral liver lobectomies could be performed in sternal recumbency with the placement of an ITT, regardless of body weight. The ITT was useful in all cases for visualization of the hilus.

CLINICAL SIGNIFICANCE

Laparoscopic right lateral liver lobectomy is feasible in normal canine patients with no hepatic neoplasia or obvious pathology of different sizes in sternal recumbency. The use of a transdiaphragmatic port can help to evaluate proximity to the hilus and manipulation of the liver lobes.

The impact of neoadjuvant therapy in patients with left-sided resectable pancreatic cancer: an international multicenter study

BACKGROUND

Left-sided pancreatic cancer is associated with worse overall survival (OS) compared with right-sided pancreatic cancer. Although neoadjuvant therapy is currently seen as not effective in patients with resectable pancreatic cancer (RPC), current randomized trials included mostly patients with right-sided RPC. The purpose of this study was to assess the association between neoadjuvant therapy and OS in patients with left-sided RPC compared with upfront surgery.

PATIENTS AND METHODS

This was an international multicenter retrospective study including consecutive patients after left-sided pancreatic resection for pathology-proven RPC, either after neoadjuvant therapy or upfront surgery in 76 centers from 18 countries on 4 continents (2013-2019). The primary endpoint was OS from diagnosis. Time-dependent Cox regression analysis was carried out to investigate the association of neoadjuvant therapy with OS, adjusting for confounders at the time of diagnosis. Adjusted OS probabilities were calculated.

RESULTS

Overall, 2282 patients after left-sided pancreatic resection for RPC were included of whom 290 patients (13%) received neoadjuvant therapy. The most common neoadjuvant regimens were (m)FOLFIRINOX (38%) and gemcitabine-nab-paclitaxel (22%). After upfront surgery, 72% of patients received adjuvant chemotherapy, mostly a single-agent regimen (74%). Neoadjuvant therapy was associated with prolonged OS compared with upfront surgery (adjusted hazard ratio 0.69, 95% confidence interval 0.58-0.83) with an adjusted median OS of 53 versus 37 months (P = 0.0003) and adjusted 5-year OS rates of 47% versus 35% (P = 0.0001) compared with upfront surgery. Interaction analysis demonstrated a stronger effect of neoadjuvant therapy in patients with a larger tumor (Pinteraction = 0.003) and higher serum carbohydrate antigen 19-9 (CA19-9; Pinteraction = 0.005). In contrast, the effect of neoadjuvant therapy was not enhanced for splenic artery (Pinteraction = 0.43), splenic vein (Pinteraction = 0.30), retroperitoneal (Pinteraction = 0.84), and multivisceral (Pinteraction = 0.96) involvement.

CONCLUSIONS

Neoadjuvant therapy in patients with left-sided RPC was associated with improved OS compared with upfront surgery. The impact of neoadjuvant therapy increased with larger tumor size and higher serum CA19-9 at diagnosis. Randomized controlled trials on neoadjuvant therapy specifically in patients with left-sided RPC are needed.

Investigation of the Association of Acute Pancreatitis Outcomes with Social Vulnerability Indicators

BACKGROUND AND AIM

Geospatial analyses integrate location-based sociodemographic data, offering a promising approach to investigate the impact of social determinants on acute pancreatitis outcomes. This study aimed to examine the association of Social Vulnerability Index (SVI) and its constituent 16 attributes in 4 domains (socioeconomic status, household composition and disability, minority status and language, and housing type and transportation), with outcomes in patients with acute pancreatitis.

METHODS

This study included acute pancreatitis patients hospitalized between 1/1/2008 and 12/31/2021 and recorded their demographics and clinical outcomes. Physical addresses were geocoded to determine SVI, a composite variable which was ranked and divided into quartiles (I-IV: IV representing the highest vulnerability).

RESULT

In 824 eligible patients [age of 53.0 ± 10 years and 48.2% females], with 993 acute pancreatitis-related hospitalizations, we noted a significant association in patients residing in communities with higher SVI, a higher prevalence of no/federal/state insurance (P < .001) and underserved ethnic/racial background (P < .001). We observed a significant association of alcohol withdrawal in patients with residence in areas with higher SVI despite adjustment for age, body mass index, and comorbidities (odds ratios: 1.62 [95% CI: 1.19-2.22]; P = .003). However, we observed no association of SVI with severity of acute pancreatitis, inpatient opioid use, length of stay, 30-day admission rate, and mortality.

CONCLUSIONS

We noted significantly higher alcohol withdrawal in patients residing in areas with higher SVI ranks, despite no differences in severity of acute pancreatitis, inpatient opioid use, length of stay, 30-day admission rate, and mortality.

Effects of continuous venous-venous hemofiltration with or without hemoperfusion on patients with hypertriglyceride acute pancreatitis

BACKGROUND

The role of continuous venous-venous hemofiltration (CVVH) and combined CVVH with hemoperfusion (HP) in patients with acute pancreatitis (AP) is diverse. We hypothesized HP+CVVH, rather than CVVH alone, could have significant benefits in hypertriglyceridemia (HTG)-AP patients.

METHODS

This single-center retrospective study included 347 patients with hypertriglyceride (HTH) -AP treated from January 2020 to December 2023. We assessed the association of short- and long-term outcomes (including incidence of systemic and local complications, length of ICU and hospital stays, and costs) between the HP+CVVH and CVVH groups. A subgroup analysis was performed to explore the effects of heterogeneity upon the incidence of severe AP (SAP).

RESULTS

Among 86 included patients, 40 received HP+CVVH therapy, and 46 received CVVH. Subgroup analysis revealed a lower incidence of severe AP after HP+CVVH therapy in patients with high procalcitonin, C-reactive protein, and interleukin-6 levels (46.4 % vs. 80.0 %, p = 0.019; 33.3 % vs. 72.7 %, p = 0.010; 37.5 % vs. 79.2 %, respectively). A significantly decreased hospital length of stay (LOS) in the HP+CVVH group was observed (10.40 [8.63-12.17] vs. 15.48 [13.02-17.94] days, p = 0.001). Furthermore, HP+CVVH showed a tendency towards lower hospital costs than CVVH ($5128 [4312-5943] vs. $8168 [6416-9920], p = 0.001). No significant differences were observed in the incidence of systemic or local complications, recurrence rates, or quality of life.

CONCLUSIONS

The use of HP+CVVH yielded superior outcomes in terms of the incidence of SAP compared to that of CVVH, for HTG-AP patients with a high inflammatory burden.

Therapeutic efficacy of Xuebijing injection in treating severe acute pancreatitis and its mechanisms of action: A comprehensive survey

BACKGROUND

Severe acute pancreatitis (SAP) is a life-threatening condition associated with high mortality and limited therapeutic options. Current management strategies focus on infection prevention, immune regulation, and anticoagulation. Xuebijing Injection (XBJ), a widely used traditional Chinese medicine-derived intravenous preparation, has shown promising therapeutic effects in SAP. Herein, we sought to evaluate clinical and preclinical evidence on XBJ to reveal its potential mechanisms of action, and provide insights to guide future research and clinical applications.

METHODS

We conducted a comprehensive survey of studies on XBJ in the treatment of SAP across PubMed, Embase, Cochrane Library, CBM, CNKI, Wanfang and VIP databases from their inception to March 21st, 2024.

RESULTS

A total of 239 studies were included, comprising 12 animal experiments, 7 systematic reviews, 220 clinical trials. Mechanistic studies suggest that XBJ downregulates the expression of inflammatory mediators, improves immune function, and alleviates oxidative stress via multiple signaling pathways, including the TLR4/NF-κB, p38-MAPK, HMGB1/TLR, TLR4/NF-κB, FPR1/NLRP3, and JAK/STAT pathways. These effects contribute to reducing organ damage. Compared to standard treatment, XBJ has more effective at reducing mortality and complications, improving overall clinical outcomes, shortening ventilator use time, and hospital stay in SAP patients.

CONCLUSIONS

Preclinical evidence and clinical trial data indicated that XBJ can simultaneously regulate inflammatory responses, immune function, microcirculatory disorders, oxidative stress, and apoptosis. However, further research is required to elucidate the specific mechanisms of action, clinical characteristics and safety of XBJ.

Real-time ancillary diagnostics for intraoperative assessment of intestinal viability in horses-looking for answers across species

Clinical intestinal viability assessment is associated with significant limitations, and there is an undisputable need for ancillary diagnostics during colic surgery. Human and companion animal surgeons struggle with similar intraoperative issues, yet there is little exchange between specialists. Therefore, this narrative review aimed to create an overview of real-time ancillary diagnostics with the potential for intraoperative intestinal viability assessment in horses. Most real-time ancillary diagnostics can be classified as either tissue perfusion or oxygenation assessments. Intestinal perfusion may be quantified using dark field microscopy, laser Doppler flowmetry, or fluorescence angiography (FA). In particular, indocyanine green FA has gained popularity in human medicine and is increasingly employed to predict intestinal injury. Intestinal oxygen saturation can be measured by pulse oximetry or mixed tissue oximetry. The latter can be conducted using visible light or near-infrared spectrophotometry, and these measurements correlate with clinical outcomes in various species. Other real-time diagnostics include thermography and techniques currently under development, such as laser speckle flowgraphy or photoacoustic imaging. The modalities discussed are minimally invasive and may be used for intraoperative assessments of the intestine. However, limitations include the occurrence of artifacts and the subjective nature of some modalities. Techniques such as indocyanine green FA and tissue oximetry are already available in veterinary practice and have the potential for use during colic surgery. However, blinded clinical trials are lacking in all species, and more research is needed to determine the accuracy and cutoff values in equine-specific intestinal lesions.

Acute pancreatitis in intraductal papillary mucinous neoplasm: Associations with epithelial subtype, degree of dysplasia, and risk of recurrence

BACKGROUND

Acute pancreatitis is an uncommon presentation of intraductal papillary mucinous neoplasm; however, it is considered a worrisome feature in current guidelines and can be an indication for surgery. There is controversy regarding its association with malignancy, and there is little information regarding the recurrence of pancreatitis after surgical resection.

METHODS

We retrospectively reviewed patients who underwent resection for intraductal papillary mucinous neoplasm at a single institution between January 1990 and December 2023. Patients with and without acute pancreatitis as part of the clinical presentation were compared.

RESULTS

A total of 812 patients were reviewed. Of these, 156 patients (19.2%) had intraductal papillary mucinous neoplasms associated with acute pancreatitis, and in 92% of them pancreatitis was the symptom leading to the diagnosis. Half of the patients had a single episode of pancreatitis (n = 77, 49.4%), and 42 (26.9%) had had 3 or more episodes before diagnosis. Acute pancreatitis was significantly associated with high-grade dysplasia (odds ratio 2.07) but had a lower likelihood of invasive cancer (odds ratio 0.62). It was also significantly associated with main duct and mixed duct-type intraductal papillary mucinous neoplasm (odds ratio 1.97) and intestinal epithelial subtype (odds ratio 2.28). Median follow-up for all patients was 61 months, and the likelihood of recurrent pancreatitis after surgical resection was 9% (14 patients), whereas pancreatitis after resection in patients without prior history occurred in only 0.9% (6 patients, P < .001).

CONCLUSIONS

Almost 1 in 5 patients undergoing resection for intraductal papillary mucinous neoplasm have a history of acute pancreatitis and are twice as likely to have high-grade dysplasia, supporting its categorization as a worrisome feature. Recurrence of pancreatitis after resection was 9%.

Hypophosphatemia as a Predictor of Pancreatic Necrosis in Acute Alcohol-induced Pancreatitis

OBJECTIVE

Pancreatic necrosis is a catastrophic complication of acute pancreatitis and is associated with increased morbidity and mortality. While there is no objective means to predict pancreatic necrosis, recent studies have identified serum phosphate levels as a contributor to the disease process, with worse outcomes noted in patients with low serum phosphates. We aimed to determine if there was a relationship between low serum phosphate levels and the risk of developing pancreatic necrosis in patients with acute alcoholic pancreatitis (AAP).

METHODS

Health care records from patients admitted between January 2017 and December 2022 for acute alcoholic pancreatitis were retrospectively reviewed. These patients were categorized based on their phosphate levels within 48 hours of admission: normal phosphate levels (2.8-4.5 mg/dL) and hypophosphatemia (<2.8 mg/dL). Imaging findings from hospital stays were examined to identify cases of pancreatic necrosis. These cases were then compared across patients with normal and low phosphate levels.

RESULTS

Among the 207 patients admitted for acute alcoholic pancreatitis, 67 met the inclusion and exclusion criteria. Of these, 37 patients exhibited serum phosphate levels below 2.8 mg/dL, while 30 maintained levels between 2.8 and 4.5 mg/dL within the first 48 hours of admission. Of the patients in the hypophosphatemia group, 27.02% were noted to develop pancreatic necrosis during hospital stay compared to only 6.66% in the normal phosphate group ( P value: 0.029). In addition, those who developed necrosis had an overall lower mean phosphate level of 2.13 mg/dL compared to the mean phosphate level of 2.60 mg/dL ( P value: 0.0521) in patients without necrosis. The median duration of hospital stay ( P value: 0.65) and rate of intensive care unit (ICU) admission ( P value: 0.41) were similar in both groups.

CONCLUSIONS

Early hypophosphatemia during admission for AAP was associated with an increased risk of developing pancreatic necrosis; however, it may not affect the overall length of hospital stay or rate of ICU admission.

Metal versus plastic stents for EUS-guided walled-off necrosis drainage: a systematic review and meta-analysis of randomized controlled trials

BACKGROUND & OBJECTIVE

The endoscopic step-up approach is the mainstay of walled-off necrosis management (WON). However, using metal stents versus plastic stents during WON drainage is debatable, with limited high-quality evidence. Therefore, we aim to investigate the comparative safety and efficacy of metal versus plastic stents for endoscopic ultrasound (EUS) guided WON drainage.

METHODS

A systematic review and meta-analysis synthesizing randomized controlled trials (RCTs), retrieved by systematically searching PubMed, EMBASE, WOS, SCOPUS, and Cochrane through July 2024. Continuous and dichotomous outcome variables were pooled using mean difference (MD) and risk ratio (RR), with confidence interval (CI) using Stata MP v. 17. We assessed heterogeneity using the chi-square test and I2 statistic.

PROSPERO ID

CRD42024573859.

RESULTS

Six RCTs with 352 patients were included. There was no difference between both groups regarding clinical success (RR: 1.04 with 95% CI [0.88-1.23], p = 0.61), WON recurrence (RR: 1.46 with 95% CI [0.59-3.61], p = 0.41), the need of necrosectomy (RR: 0.96 with 95% CI [0.65-1.41], p = 0.84), the total number of necrosectomy sessions (MD: 1.03 with 95% CI [- 0.33, 2.40], p = 0.14), total number of interventions (MD: - 0.09 with 95% CI [- 0.72, 0.54], p = 0.79), mortality (RR: 0.87 with 95% CI [0.32-2.37], p = 0.79), bleeding (RR: 1.35 with 95% CI [0.58-3.12], p = 0.48), and stent migration (RR: 0.69 with 95% CI [0.28-1.71], p = 0.42). However, metal stents significantly decreased the procedure duration (MD: - 11.27 with 95% CI [- 17.69, - 4.86], p < 0.001).

CONCLUSION

There was no significant difference between metal and plastic stents in efficacy and safety outcomes during WON EUS-guided drainage, except for a shorter procedural duration with metal stents.

Impact of visceral fat area on surgical difficulty during robotic distal pancreatectomy (TAKUMI-2)

BACKGROUND

Difficulty scoring systems (DSS) have been developed to quantify the surgical complexity of laparoscopic distal pancreatectomy (LDP). However, few studies have validated these systems in the context of robotic distal pancreatectomy (RDP). Moreover, the impact of body composition on RDP outcomes remains unexplored. This study aimed to investigate the risk factors of surgical difficulty in RDP, including body composition.

METHODS

This retrospective study included 72 consecutive patients who underwent RDP at our institution between April 2021 and October 2024. Using a modified DSS for LDP, patients were divided into three difficulty index groups. The association between the difficulty index and outcomes was investigated. Multivariate analyses were performed to identify risk factors associated with surgical difficulty (prolonged operative time) in RDP.

RESULTS

Patients were classified into three difficulty index groups: low (n = 28), intermediate (n = 25), and high (n = 19). Operative time was significantly associated with the surgical index (P = 0.01). Moreover, visceral fat area (VFA) was significantly correlated with operative time (r2 = 0.10, P = 0.008). The multivariate analyses found that VFA (≥ 100 cm2) (odds ratio [OR] 5.03, 95% confidence interval [CI] 1.32-22.4, P = 0.02), malignancy (OR 4.92, 95% CI 1.50-18.9, P = 0.01), and pancreatic resection on the portal vein (OR 4.14, 95% CI 1.24-15.9, P = 0.02) were significant risk factors associated with surgical difficulty.

CONCLUSION

VFA could be a novel and useful factor for assessing the surgical difficulty associated with RDP.

German surgeons' perspective on the application of artificial intelligence in clinical decision-making

PURPOSE

Artificial intelligence (AI) is transforming clinical decision-making (CDM). This application of AI should be a conscious choice to avoid technological determinism. The surgeons' perspective is needed to guide further implementation.

METHODS

We conducted an online survey among German surgeons, focusing on digitalization and AI in CDM, specifically for acute abdominal pain (AAP). The survey included Likert items and scales.

RESULTS

We analyzed 263 responses. Seventy-one percentage of participants were male, with a median age of 49 years (IQR 41-57). Seventy-three percentage of participants carried out a senior role, with a median of 22 years of work experience (IQR 13-28). AI in CDM was seen as helpful for workload management (48%) but not for preventing unnecessary treatments (32%). Safety (95%), evidence (94%), and usability (96%) were prioritized over costs (43%) for the implementation. Concerns included the loss of practical CDM skills (81%) and ethical issues like transparency (52%), patient trust (45%), and physician integrity (44%). Traditional CDM for AAP was seen as experience-based (93%) and not standardized (31%), whereas AI was perceived to assist with urgency triage (60%) and resource management (59%). On median, generation Y showed more confidence in AI for CDM (P = 0.001), while participants working in primary care hospitals were less confident (P = 0.021).

CONCLUSION

Participants saw the potential of AI for organizational tasks but are hesitant about its use in CDM. Concerns about trust and performance need to be addressed through education and critical evaluation. In the future, AI might provide sufficient decision support but will not replace the human component.

Gender Research Gap in Orthopaedics and Trauma Surgery: Gender-specific Disparities in Submission of Abstracts to the German Congress of Orthopaedic and Trauma Surgery from 2015 to 2024

Gender-specific differences also affect the subject of orthopaedics and trauma surgery (O&T). While the proportion of women studying medicine is steadily increasing, the proportion of female surgeons in O&T is only 18.6%. This underrepresentation affects not only clinics but also research and is reflected in participation in scientific annual meetings such as the German Congress for Orthopaedics and Trauma Surgery (DKOU).This retrospective study examined the gender differences in abstract submissions to the DKOU from 2015 to 2024. The anonymised data were subjected to examination regarding gender, role in submission and academic title.The overall participation of women in the 82,813 abstracts was 20%. The proportion of women among submitters was 23.3%, among presenters 24.5% and among co-authors 18.2%. In the analysis of the female cohort alone, women were more likely to be submitters and presenters than in the male cohort (p < 0.001). The proportion of female participation in abstract submissions increased by an average of 0.5% per year over the study period. However, women were significantly underrepresented at higher academic degrees, such as habilitations (7.4%), professorships (7.6%) and university professorships (5.2%).The results show that the proportion of women submitting abstracts to the DKOU largely corresponds to the percentage in the field of orthopaedics and trauma surgery (18.6% in 2022), reflecting the overall gender disparity in this specialty. If this trend analysis were applied to the general development of gender parity in orthopaedics and trauma surgery, gender-equitable staffing of medical positions could not be achieved before the year 2087. To accelerate this development, targeted measures to promote women in orthopaedics and trauma surgery are necessary. This includes dismantling structural barriers and implementing specific support programs for female surgeons pursuing academic careers.

A systematic review on the prognostic role of radiologically-proven sarcopenia on the clinical outcomes of patients with acute pancreatitis

BACKGROUND

Sarcopenia is a known risk factor for poor prognosis in chronic pancreatitis, however the impact of sarcopenia in acute pancreatitis (AP) is unknown. This systematic review examines the prognostic impact of sarcopenia on clinical outcomes in patients with acute pancreatitis.

METHODS

A systematic literature of Medline, EMBASE, Cochrane, and the World Health Organisation International Clinical Trials Registry Platform was undertaken to identify articles relating to sarcopenia, AP, and computed tomography imaging. Data collected was related to studies' demographic population, presence of sarcopenia, sarcopenia assessment methodology, obesity, pancreatitis severity, and short- and long-term complications of AP.

RESULTS

A total of four out of 114 unique peer-review articles were included in this review, encompassing 947 patients in total. Of the analysable data, 200 patients had sarcopenia and 640 did not. There was marked heterogeneity in the determination of the presence of sarcopenia between studies. No significant association was found between sarcopenia and pancreatic necrosis, organ failure, venous thromboembolism, recurrent acute pancreatitis, or mortality.

CONCLUSION

Sarcopenia remains highly prevalent in patients suffering from acute pancreatitis. There is insufficient evidence to suggest sarcopenia is associated with poorer outcomes in patients with acute pancreatitis. More high-powered studies are required to further characterise the impact of sarcopenia on patients with acute pancreatitis.

Parecoxib sequential with imrecoxib for occurrence and remission of severe acute pancreatitis: a multicentre, double-blind, randomised, placebo-controlled trial

BACKGROUND

There is no effective drug treatment for the organ failure (OF) caused by severe acute pancreatitis (SAP).

OBJECTIVE

We aimed to evaluate the efficacy of cyclooxygenase-2 inhibitors (COX-2-Is) on the treatment of SAP and its safety.

DESIGN

In this multicentre, double-blind, randomised, placebo-controlled, investigator-initiated trial, 348 patients with acute pancreatitis aged 18-75 years, <1 week from onset of illness to admission, and Acute Physiology and Chronic Health Evaluation II Score ≥7 or modified Marshall Score ≥2, were randomly assigned (1:1) to the COX-2-Is group (parecoxib sequential with imrecoxib) or the placebo group. SAP occurrence, duration of OF, local complications, clinical outcomes and serum inflammatory mediators were measured.

RESULTS

Compared with the placebo group, SAP occurrence was reduced by 20.7% (77.6% vs 61.5%, p=0.001) and the persistent OF duration in SAP was shortened by 2 days (p<0.001) after COX-2-Is treatment. For patients enrolled within or after 48 hours from symptom onset, SAP occurrence was reduced by 23.8% (p=0.001) and 8.5% (p=0.202), and the persistent OF duration in SAP was shortened by 3 days (p=0.001) and 2 days (p=0.010) after COX-2-Is treatment, respectively. The occurrence of local complications in the COX-2-Is group was significantly lower than those in the placebo group, 33.7% vs 49.1%, p=0.004. The serum levels of inflammatory mediators and 30-day mortality (from 8.6% to 3.4%) were significantly reduced after COX-2-Is treatment, p<0.05. The incidence of adverse events was similar between the two treatment groups.

CONCLUSION

Parecoxib sequential with imrecoxib was effective and well tolerated in reducing the occurrence and duration of SAP and local complications through suppression of systemic inflammatory response, leading to decreased morbidity.

Development and validation of a novel chronic pancreatitis pathological grade based on artificial intelligence

BACKGROUND

Effective chronic pancreatitis (CP) treatment requires accurate severity evaluation, but no histopathology grading system exists. This study aimed to develop and validate a novel CP pathological grade (Histopathology-derived CPpG) using quantified pathological and radiological characteristics through deep learning.

METHODS

Patients with pathologically/clinically confirmed CP or recurrent acute pancreatitis were retrospectively enrolled (2011-2023). Whole-slide CP images were automatically segmented and quantified via DeeplabV3+, followed by latent class analysis to develop Histopathology-derived CPpG. A deep learning radiomics score (DLRS) was created to predict Histopathology-derived CPpG using preoperative CT scans of patients with pathologically confirmed CP. CT-predicted CPpG was then validated in an independent group of patients with clinically confirmed CP and recurrent acute pancreatitis.

RESULTS

The study included 2054 patients with CP and recurrent acute pancreatitis, with 181 cases of pathologically confirmed CP. Histopathology-derived CPpG I had a higher proportion of acini, acinus-to-stroma ratio, acinus-to-islet ratio, islet-to-stroma ratio, and (acinus + islet)-to-stroma ratio, and a lower proportion of stroma and lymphocytes compared to CPpG II. The DLRS demonstrated high performance in the validation (AUC, 0.84; 95 % CI: 0.75-0.92) and test (AUC, 0.76; 95 % CI: 0.65-0.87) sets. In a large-scale clinical validation, CT-predicted grades were significantly associated with endocrine and exocrine function, as well as prognosis (P < .05).

CONCLUSION

This study developed a novel pathological classification, Histopathology-derived CPpG, which accurately reflects disease severity. Additionally, the non-invasive DLRS shows great potential for dynamically monitoring CP severity and evaluating pancreatic endocrine and exocrine function, as well as prognosis.

Optimal timing for lumen-apposing metal stent removal following endoscopic ultrasound-guided drainage of pancreatic fluid collections: a systematic review and meta-analysis

BACKGROUND

 Lumen-apposing metal stents (LAMSs) are widely used for endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collections (PFCs). Safety is a major concern and the timing of LAMS removal is debated owing to the risk of adverse events (AEs). Previous studies showed early stent removal was associated with a reduced risk of AEs, but data are still conflicting. The aim of this systematic review with meta-analysis was to identify the optimal timing for LAMS removal.

METHODS

 Major databases were systematically searched until May 2024. The outcome assessed was the cumulative incidence of AEs related to the early (within 3-4 weeks) versus late (after 3-4 weeks) removal of the LAMS. A random-effects (DerSimonian-Laird) model was used to pool the results.

RESULTS

 Eight studies (1820 patients; mean age 54-61.6 years; 63 % men) were included in the analysis. PFCs included walled-off necrosis (WON; 58.2 %) and pseudocysts (41.8 %). Pooled LAMS-related AEs rate were similar in the late versus early removal groups (risk ratio [RR] 1.03, 95 %CI 0.47-2.28; P = 0.94). Sensitivity analysis, including only studies applying a 4-week cut-off, confirmed a comparable AEs rate (RR 0.80, 95 %CI 0.38-1.65; P = 0.59). The mean (SD) follow-up of the studies was 208 (88) days.

CONCLUSIONS

 The results of this meta-analysis showed no difference in the incidence of AEs between early and late removal of LAMSs in the presence of moderate heterogeneity across studies. Removal within 4 weeks is not warranted, and it may instead be planned on a clinical case-by-case basis according on the patient's condition.

Efficacy of DaXianXiong Decoction in Preventing the Progression of Acute Pancreatitis Severity: Protocol for a Randomized Controlled Trial

BACKGROUND

Low- and middle-income countries are facing an increase in the incidence of acute pancreatitis (AP)-characterized by rapid onset, fast progression, high rate of severity, and high mortality. Progression of AP into severe AP (SAP) results in a series of complications such as organ dysfunction, local abscesses, pseudocysts, and necrosis. Although the treatment of AP is primarily supportive, including fluid resuscitation and organ support, there is still a lack of consensus on the optimal management regimen for fluid therapy, and strategies to promote gastrointestinal recovery remain limited. As no effective intervention measure has yet been developed, supportive therapy remains the primary approach for the early treatment of AP. DaXianXiong decoction is a widely used traditional Chinese medicine formulation; however, limited research has been conducted on its clinical efficacy.

OBJECTIVE

This study aims to evaluate the efficacy and safety of DaXianXiong decoction in preventing AP from progressing to SAP, assessing its impact on SAP incidence, clinical severity scores, inflammation markers, and gastrointestinal function, and providing evidence for AP management.

METHODS

This study is a randomized, double-blind, placebo-controlled, single-center clinical trial. The primary outcomes will include the incidence of SAP, modified computed tomography severity index score, APACHE II (Acute Physiology and Chronic Health Evaluation II) score, modified Marshall score, and levels of the inflammation factor. The secondary outcomes will include the effect of the gastrointestinal dysfunction treatment. Evaluations will be conducted at baseline; 24 hours after the intervention; and on days 3, 7, and 28 after the intervention in both groups. A total of 60 eligible patients will be randomly allocated in a 1:1 ratio to the intervention group and the control group. Both groups will receive standard Western medical treatment for pancreatitis. The intervention group will additionally receive DaXianXiong decoction, while the control group will receive a placebo similar to the decoction.

RESULTS

This study has been funded by the Performance Incentive Project of Scientific Research Institutions in Chongqing. The trial was registered in April 2024, and data analysis is expected to be completed by April 2025. The study results will be presented at both national and international conferences and published in peer-reviewed journals.

CONCLUSIONS

This trial will help us assess the effectiveness and safety of DaXianXiong decoction in patients with AP and provide clinical evidence on the efficacy and safety of DaXianXiong decoction in preventing the progression of AP to SAP. By evaluating its impact, the findings will contribute to the understanding of DaXianXiong decoction as an adjunct therapy in AP management and may offer a novel complementary treatment strategy for AP, potentially improving patient outcomes and reducing complications.

TRIAL REGISTRATION

Chinese Clinical Trial Registry ChiCTR2300076885; https://www.chictr.org.cn/showproj.html?proj=207084.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/67392.

Endoscopic interventions for managing pancreatic fluid collections associated with acute pancreatitis: A state-of-the-art review (with videos)

Acute pancreatitis is an acute inflammatory disease, which may be associated with pancreatic and peri-pancreatic necrosis and development of (peri)pancreatic fluid collections (PFCs). Interventions in acute pancreatitis have evolved over the years with a paradigm shift from open surgical drainage and necrosectomy to minimally invasive approaches. Depending on the presence of necrosis, the PFCs may be acute necrotic collections or acute pancreatic fluid collections, which evolve over a period of three to four weeks to walled-off necrosis and pseudocysts, respectively. Patients with symptomatic and infected PFCs require drainage. In general, drainage should be delayed beyond three to four weeks when the collection wall has matured and the necrotic debris is liquefied. However, some patients may merit early drainage (within the first three to four weeks), if they have suspected infected pancreatic necrosis and worsening organ dysfunction despite antibiotics and supporting therapy. Endoscopic transmural drainage and necrosectomy have now emerged as the most favored treatment modality in suitable pancreatic collections located predominantly in the lesser sac. Being minimally invasive, per-oral endoscopic direct necrosectomy is as effective as surgical necrosectomy in patients with infected necrotic collections but with fewer adverse events. Percutaneous endoscopic necrosectomy is an important addition to our armamentarium for laterally placed collections as an effective alternative to surgical video-assisted retroperitoneal debridement. The current review provides an overview of the evolution, indications, approaches, techniques and outcomes of endoscopic interventions in the management of pancreatic fluid collections associated with acute pancreatitis. Future direction for better outcomes has been highlighted.

Efficacy of modified pancreatic duct stent drainage during endoscopic retrograde cholangiopancreatography for common bile duct stones

BACKGROUND

Common bile duct stones pose a high risk of recurrence or disease progression if not promptly treated. However, there is still no optimal treatment approach.

AIM

To investigate the clinical efficacy of modified pancreatic duct stent drainage in endoscopic retrograde cholangiopancreatography (ERCP) for treating common bile duct stones.

METHODS

This retrospective study included 175 patients with common bile duct stones treated at Taizhou Fourth People's Hospital between January 1, 2021, and November 30, 2023. The patients were divided into three groups-the modified pancreatic duct stent drainage group (59 cases), the nasobiliary drainage group (58 cases), and the standard biliary drainage group (58 cases). Preoperative general clinical data, laboratory indicators, and the visual analog scale (VAS) at two time points (24 hours before and after surgery) were compared, along with postoperative complications across the three groups.

RESULTS

Serum levels of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, gamma-glutamyltransferase, total bilirubin, direct bilirubin, C-reactive protein, and amylase were significantly lower in the modified pancreatic duct stent drainage group and the standard biliary drainage group than those in the nasobiliary drainage group (P < 0.05). However, no statistically significant differences were observed in white blood cells, hemoglobin, or neutrophil levels among the three groups (P > 0.05). The standard biliary drainage group had significantly lower VAS scores [(4.36 ± 1.18) points] than those for the modified pancreatic duct stent drainage group [(4.92 ± 1.68) points] (P = 0.033), and the nasobiliary drainage group [(5.54 ± 1.24) points] (P = 0.017). There were no statistically significant differences in complication rates across the three groups (P > 0.05).

CONCLUSION

Compared to standard biliary drainage and nasobiliary drainage, the modified pancreatic duct stent used during ERCP for patients with bile duct stones significantly reduced hepatocyte injury, improved liver function parameters, alleviated inflammation and pain, enhanced patient comfort, and demonstrated superior safety.

Pan-immune-inflammation in colon cancer: A prognostic biomarker and the role of tumor location in personalized care

Despite advances in surgery, chemotherapy, and radiotherapy, the treatment of colorectal cancer (CRC) requires more personalized approaches based on tumor biology and molecular profiling. While some relevant mutations have been associated with differential response to immunotherapy, such as RAS and BRAF mutations limiting response to anti-epithelial growth factor receptor drugs or microsatellite instability predisposing susceptibility to immune checkpoint inhibitors, the role of inflammation in dictating tumor progression and treatment response is still under investigation. Several inflammatory biomarkers have been identified to guide patient prognosis. These include the neutrophil-lymphocyte ratio, Glasgow prognostic score (GPS) and its modified version, lymphocyte-C-reactive protein ratio, and platelet-lymphocyte ratio. However, these markers are not yet included in the standard clinical management of patients with CRC, and further research is needed to evaluate their efficacy in different patient populations. A recent study by Wang et al, published in the World Journal of Gastroenterology, sheds light on the prognostic significance of pan-immune-inflammation value (PIV) in CRC, particularly concerning primary tumor location. Specifically, the authors found that a high PIV was strongly correlated with worse disease-free survival in patients with left-sided colon cancer, whereas no such association was observed in patients with right-sided colon cancer. Integrating tumor location into the prognostic assessment of CRC may improve our ability to more accurately identify high-risk patients and develop personalized treatment plans that are more likely to improve patient outcomes.

Laparoscopic management of intraductal oncocytic papillary neoplasm of the pancreas: Two case reports and review of literature

BACKGROUND

Intraductal oncocytic papillary neoplasm (IOPN) of the pancreas is an extremely rare pancreatic tumor, with only sporadic cases reported in the literature. IOPN is difficult to diagnose and highly prone to misdiagnosis. IOPN carries a certain risk of progressing to invasive cancer. Surgical resection is the primary treatment for IOPN. According to the existing literature reports, the vast majority of patients with IOPN of the pancreas undergo open surgery, while only one case of laparoscopic surgery have been reported.

CASE SUMMARY

This report presents two cases of IOPN in elderly female patients, aged 60 and 61. Both patients were asymptomatic, and their pancreatic masses were discovered incidentally. Preoperative diagnosis of IOPN is challenging and prone to misdiagnosis. In the first case, the patient underwent a laparoscopic distal pancreatectomy and splenectomy. The surgical procedure spanned 342 minutes, with an estimated intraoperative blood loss of around 100 mL. The patient experienced an uneventful postoperative recovery and was discharged on the 8th postoperative day. For the second case, a laparoscopic pancreaticoduodenectomy was performed. The operation lasted for 431 minutes with an intraoperative blood loss of approximately 50 mL. The patient also demonstrated a favorable postoperative course and was discharged on the 24th postoperative day. Postoperative pathology and immunohistochemistry confirmed the diagnosis of IOPN. No recurrence was observed in either patient after follow-up periods of 8 and 10 months, respectively.

CONCLUSION

These cases demonstrate that laparoscopic surgery can be considered as one of the treatment options for IOPN of the pancreas.

Admission hematocrit and fluctuating blood urea nitrogen levels predict the efficacy of blood purification treatment in severe acute pancreatitis patients

This study aimed to evaluate the prognostic significance of the levels of admission hematocrit (HCT) and the changes in the initial blood urea nitrogen (BUN) levels in predicting the efficacy of blood purification (BP) therapy in ameliorating severe acute pancreatitis (SAP) patients at admission. A retrospective study was conducted on 139 SAP patients from the People's Hospital of Guangxi Zhuang Autonomous Region from 2013 to 2022 and the data retrieved from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database for 346 SAP patients. The patients were stratified based on their HCT0 levels at admission; HCT < 44% (n = 93) and HCT ≥ 44% (n = 46) and ΔBUN levels within the first 24 h post-admission; ΔBUN ≤ 0 (n = 78) and ΔBUN > 0 (n = 61). Propensity score matching (PSM) was performed on factors such as age and gender to control for differences among the strata. The clinical outcomes of the patients receiving or not receiving BP therapy were compared based on the mentioned criteria. Patients with HCT0 ≥ 44%, who were treated with BP showed no significant difference in the 28-day mortality. However, a significant increase in hospital expenses and prolonged ICU stays was observed (P < 0.05). Conversely, patients with ΔBUN ≤ 0 who received BP therapy demonstrated relatively high 28-day mortality rates, prolonged ICU stays, increased hospital expenses, and low SOFA scores (P < 0.05). The analyses of MIMIC-IV database data corroborated these findings. The predictive efficacy of BP therapy in SAP patients was significantly influenced by the changes in BUN levels at 24 h post-admission compared to the initial levels of HCT on admission. Selecting SAP patients suitable for BP treatment should be based on the changes in BUN levels to enhance effective therapeutic outcomes.

Hepatic Portal Venous Gas in Acute Pancreatitis-A Critical Finding: A Systematic Review

BackgroundHepatic portal venous gas (HPVG) is an uncommon radiological finding in acute pancreatitis. This systematic review aims to consolidate existing literature on HPVG in acute pancreatitis and assess its clinical significance, particularly regarding surgical intervention. We also report a clinical case from our center.MethodsA systematic search was conducted across Medline, Scopus, Cochrane, and Google Scholar databases to identify studies reporting concurrent HPVG and pancreatitis. Data included demographics, clinical presentation, management, and outcomes. Descriptive statistics were employed for analysis, and methodological quality was assessed using established criteria.ResultsOut of 259 articles screened, 13 met inclusion criteria, yielding data on 17 patients (76.5% male; median age 62 years). Nonoperative management (NOM) was utilized in 75% of cases and was associated with a 54% mortality rate. In contrast, the surgical cohort (n = 4) experienced a similar overall mortality rate of 50%. Importantly, necrotic bowel was implicated in 44% of evaluable cases and was uniformly fatal. However, 2 patients who underwent early surgical resection of nonviable bowel survived the initial phase of their illness, suggesting that prompt operative intervention may confer an early survival advantage in selected patients. Fluid collections and pneumatosis intestinalis were significantly more prevalent in deceased patients (100% vs 17% in survivors; P < 0.0034). All deceased patients had either severe or necrotizing pancreatitis.ConclusionHPVG associated with severe acute pancreatitis appears to have a higher mortality than HPVG alone. It can be managed nonoperatively but when indicative of bowel necrosis, necessitates prompt surgical intervention.

The impact of indocyanine green on tumor visualization and procedural adjustment in minimally invasive liver surgery

BACKGROUND

Minimally invasive hepatobiliary surgery is performed increasingly either with robotic assistance or conventional laparoscopy. The lack of haptic feedback is one of the main challenges which has to be addressed during these procedures. Especially in oncological minimally invasive liver surgery Indocyanine green (ICG) can help to gain additional information for improved oncological quality.

METHODS

Patients who underwent minimally invasive liver surgery for liver tumors between 01/2019 and 09/2022 and matched the study criteria were selected from the Magdeburg Registry of Minimally invasive liver surgery (MD-MILS). Patient demographics, tumor characteristics and perioperative data were analyzed retrospectively. The benefit of ICG for tumor identification and the resection procedure was assessed as 'very helpful', 'helpful' and 'not helpful' depending on the surgeon´s estimation.

RESULTS

Seventy-two patients who met the selection criteria were included in the analysis. Of these, 49 patients received ICG for intraoperative tumor visualization (ICG). Twenty-three patients with comparable demographics did not receive ICG and served as comparison group (nICG). A total of 69.4% robotic and 30.6% laparoscopic procedures were performed. In the ICG group procedural adjustments were significantly more frequent intraoperatively (p = 0.023). Intraoperative frozen section analysis on additional biopsies of ICG positive lesions were performed in 37% in the ICG group. In the nICG group suspect lesions, identified by ultrasound, went to frozen section in 17% (p = 0.006). Histopathological tumor positivity was identified in 12.2% in the ICG cohort vs no tumor positivity in the nICG cohort. This was one factor which led to the termination of surgery in 8% in the ICG vs the nICG 4.3% group (p = 0.485). In 88% intraoperative ICG visualization was scored as "helpful" when injected on preoperative day 4-7 with respect to the liver parenchyma structure and hepatocellular function.

CONCLUSION

ICG can improve oncological quality in minimally invasive liver resections. It provides additional visual information which can help to compensate the loss of haptics and tumor identification during liver tissue palpation. The intraoperative use of ICG was associated with no adverse events and did not prolong operative time. We recommend its routine use during minimally invasive liver surgery.

Hepatosplenic T-cell lymphoma in children and adolescents

ABSTRACT

Hepatosplenic T-cell lymphoma (HSTCL) is an aggressive mature T-cell lymphoma characterized by significant hepatosplenomegaly, bone marrow involvement, and minimal or no lymphadenopathy. Primarily affecting young adults, it is exceptionally rare in children and adolescents. This makes diagnosis and treatment particularly challenging for pathologists and pediatric oncologists. Diagnosis typically relies on bone marrow, spleen, or liver biopsy, with histopathologic features including small/medium lymphoid cells with irregular nuclear contours that obstruct the sinuses or sinusoids of the spleen or liver. Immunophenotyping usually reveals CD2/3/7 positivity and CD4/8 negativity, with γδ T-cell receptor rearrangements in most cases. Some genetic distinctions described in pediatric and adolescent patients include chromosome 7 and 8 abnormalities and mutations involving SETD2 and STAT5B. Given the lack of standardized approaches, childhood and adolescent patients with HSTCL are often treated with adult protocols, such as intensive cytotoxic chemotherapy regimens followed by allogeneic hematopoietic stem cell transplantation. Despite these highly intensive treatments, the prognosis for HSTCL remains poor in children and adolescents, with an estimated 5-year overall survival of <15%. HSTCL's rarity in children and adolescents limits accurate epidemiological estimates, clinical experience, data collection, treatment advances, and surveillance recommendations. Data on relapsed/refractory disease are even more limited. This review summarizes known clinical and histopathologic features as well as outcomes specific to children and adolescents with HSTCL, highlighting potential distinctions from adults. We will also discuss future strategies to acquire additional biologic and molecular data, streamline diagnosis, and advance treatment approaches to ultimately improve outcomes for young patients with this deadly disease.

Histologic Diagnosis of Pancreatic Cystic Lesions with Endoscopic Ultrasound Fine Needle Biopsy and Impact on Management Decisions

PURPOSE

Endoscopic ultrasound with fine needle biopsy (EUS-FNB) has not been well studied in pancreatic cystic lesions (PCLs). This study evaluates the diagnostic performance of EUS-FNB for PCLs and its impact on management decisions.

METHODS

We conducted a single-center, retrospective study of patients who had EUS-FNB between March 2016 and February 2024. We included patients with ≥ 6-month follow-up and excluded those with a solid pancreatic mass. We obtained clinical, radiologic, endoscopic, surgical, laboratory, and pathology data from chart review. We evaluated: (A) diagnostic yield; (B) predictors of diagnostic FNB; (C) diagnostic accuracy compared to surgical histopathology; (D) appropriateness of management decisions; and (E) adverse events. We compared the appropriateness of management decisions between diagnostic and non-diagnostic FNB.

RESULTS

100 subjects underwent EUS-FNB for PCLs (56% microcystic or with mural nodule). FNB yielded a histologic diagnosis in 60% of sampled lesions. Performing 2 or more needle passes was the only significant predictor of a diagnostic FNB (p = 0.02). Compared to surgical histopathology (n = 21), FNB needles highly accurately diagnosed specific cyst types (IPMN = 85.7%, MCN = 90.5%, SCA = 95.2%, NET = 95.2%, SPN = 100%) and malignant PCLs (accuracy = 81.0%; specificity = 100%; sensitivity = 72.7%). There was a 7.2-fold increase of appropriate management decisions when FNB was diagnostic vs. non-diagnostic (p < 0.001). This was due to improvement in surveillance discontinuation for benign cysts and in appropriate surgical resection for malignant PCLs (p < 0.001). Post-FNB pancreatitis occurred in 4% of patients.

CONCLUSION

EUS-FNB accurately diagnoses different PCL types and their degree of neoplasia, leading to more appropriate management decisions. Future prospective studies are needed to confirm these findings.

Evaluation of scoring systems and hematological parameters in the severity stratification of early-phase acute pancreatitis

BACKGROUND

Acute pancreatitis (AP) is an emergency gastrointestinal disease that requires immediate diagnosis and urgent clinical treatment. An accurate assessment and precise staging of severity are essential in initial intensive therapy.

AIM

To explore the prognostic value of inflammatory markers and several scoring systems [Acute Physiology and Chronic Health Evaluation II, the bedside index of severity in AP (BISAP), Ranson's score, the computed tomography severity index (CTSI) and sequential organ failure assessment] in severity stratification of early-phase AP.

METHODS

A total of 463 patients with AP admitted to our hospital between 1 January 2021 and 30 June 2024 were retrospectively enrolled in this study. Inflammation marker and scoring system levels were calculated and compared between different severity groups. Relationships between severity and several predictors were evaluated using univariate and multivariate logistic regression models. Predictive ability was estimated using receiver operating characteristic curves.

RESULTS

Of the 463 patients, 50 (10.80%) were classified as having severe AP (SAP). The results revealed that the white cell count significantly increased, whereas the prognostic nutritional index measured within 48 hours (PNI48) and calcium (Ca2+) were decreased as the severity of AP increased (P < 0.001). According to multivariate logistic regression, C-reactive protein measured within 48 hours (CRP48), Ca2+ levels, and PNI48 were independent risk factors for predicting SAP. The area under the curve (AUC) values for the CRP48, Ca2+, PNI48, Acute Physiology and Chronic Health Evaluation II, sequential organ failure assessment, BISAP, CTSI, and Ranson scores for the prediction of SAP were 0.802, 0.736, 0.871, 0.799, 0.783, 0.895, 0.931 and 0.914, respectively. The AUC for the combined CRP48 + Ca2+ + PNI48 model was 0.892. The combination of PNI48 and Ranson achieved an AUC of 0.936.

CONCLUSION

Independent risk factors for developing SAP include CRP48, Ca2+, and PNI48. CTSI, BISAP, and the combination of PNI48 and the Ranson score can act as reliable predictors of SAP.