RÉSUMÉ
BACKGROUND: Primary hyperparathyroidism (PHPT)-induced acute pancreatitis (AP) during pregnancy has rarely been described. Due to this rarity, there are no diagnostic or treatment algorithms for pregnant patients. AIM: To determine appropriate diagnostic methods, therapeutic options, and factors related to maternal and fetal outcomes for PHPT-induced AP in pregnancy. METHODS: A literature search of articles in English, Japanese, German, Spanish, and Italian was performed using PubMed (1946-2023), PubMed Central (1900-2023), and Google Scholar. The Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) protocol was followed. The search terms included "pancreatite acuta," "iperparatiroidismo primario," "gravidanza," "travaglio," "puerperio," "postpartum," "akute pankreatitis," "primärer hyperparathyreoidismus," "Schwangerschaft," "Wehen," "Wochenbett," "pancreatitis aguda," "hiperparatiroidismo primario," "embarazo," "parto," "puerperio," "posparto," "acute pancreatitis," "primary hyperparathyroidism," "pregnancy," "labor," "puerperium," and "postpartum." Additional studies were identified by reviewing the reference lists of retrieved studies. Demographic, imaging, surgical, obstetric, and outcome data were obtained. RESULTS: Fifty-four cases were collected from the 51 studies. The median maternal age was 29 years. PHPT-induced AP starts at the 20th gestational week; higher gestational weeks were seen in mothers who died (mean gestational week 28). Median values of amylase (1399, Q1-Q3 = 519-2072), lipase (2072, Q1-Q3 = 893-2804), serum calcium (3.5, Q1-Q3 = 3.1-3.9), and parathormone (PTH) (384, Q1-Q3 = 123-910) were reported. In 46 cases, adenoma was the cause of PHPT, followed by 2 cases of carcinoma and 1 case of hyperplasia. In the remaining 5 cases, the diagnosis was not reported. Neck ultrasound was positive in 34 cases, whereas sestamibi was performed in 3 cases, and neck computed tomography or magnetic resonance imaging was performed in 9 cases (the enlarged parathyroid gland was not localized in 3 cases). Surgery was the preferred treatment during pregnancy in 33 cases (median week of gestation 25, Q1-Q3 = 20-30) and postpartum in 12 cases. The timing was not reported in the remaining 9 cases, or surgery was not performed. AP was managed surgically in 11 cases and conservatively in 43 (79.6%) cases. Maternal and fetal mortality was 9.3% (5 cases). Surgery was more common in deceased mothers (60.0% vs 16.3%; P = 0.052), and PTH values tended to be higher in this group (910 pg/mL vs 302 pg/mL; P = 0.059). Maternal mortality was higher with higher serum lipase levels and earlier delivery week. Higher calcium (4.1 mmol/L vs 3.3 mmol/L; P = 0.009) and PTH (1914 pg/mL vs 302 pg/mL; P = 0.003) values increased fetal/child mortality, as well as abortions (40.0% vs 0.0%; P = 0.007) and complex deliveries (60.0% vs 8.2%; P = 0.01). CONCLUSION: If serum calcium is not tested during admission, definitive diagnosis of PHPT-induced AP in pregnancy is delayed, while early diagnosis and immediate intervention lead to excellent maternal and fetal outcomes.
Sujet(s)
Algorithmes , Hyperparathyroïdie primitive , Pancréatite , Complications de la grossesse , Humains , Grossesse , Femelle , Pancréatite/étiologie , Pancréatite/diagnostic , Pancréatite/thérapie , Hyperparathyroïdie primitive/diagnostic , Hyperparathyroïdie primitive/complications , Hyperparathyroïdie primitive/thérapie , Complications de la grossesse/thérapie , Complications de la grossesse/étiologie , Complications de la grossesse/diagnostic , Parathyroïdectomie , Hormone parathyroïdienne/sang , Issue de la grossesseRÉSUMÉ
BACKGROUND: Guidelines must be interpreted comprehensively and correctly to standardize the clinical process. However, this process is challenging and requires interpreters to have a medical background and qualifications. In this study, the accuracy of ChatGPT3.5 in answering clinical questions related to the 2019 guidelines for severe acute pancreatitis was evaluated. METHODS AND RESULTS: An observational study was conducted using the 2019 guidelines for severe acute pancreatitis. The study compared the accuracy of ChatGPT3.5 in English versus Chinese and found that it was more accurate in English (71%) than in Chinese (59%) (P value: 0.203). Additionally, the study assessed the accuracy of ChatGPT3.5 in answering short-answer questions versus true/false questions and found that it was more accurate in answering short-answer questions (76%) than in answering true/false questions (60%) (P value: 0.405). CONCLUSIONS: For clinicians managing severe acute pancreatitis, ChatGPT3.5 may have potential value. However, it should not be relied upon excessively for clinical decision making.
Sujet(s)
Pancréatite , Guides de bonnes pratiques cliniques comme sujet , Humains , Pancréatite/diagnostic , Pancréatite/thérapie , Maladie aigüe , Prise de décision clinique , Traduction , Indice de gravité de la maladieRÉSUMÉ
Hypertriglyceridaemia-induced acute pancreatitis (HTG-AP) remains one of the common metabolic causes of acute pancreatitis in the paediatric population and the third most common cause after alcohol and gallstones in the adult population. We report a case of an early adolescent girl with global developmental delay and moderate cognitive impairment of unknown aetiology who presented with recurrent acute pancreatitis and uncompensated hypovolaemic shock. She was found to have serum triglyceride level of 7877 mg/dL (reference range<150 mg/dL) and hyperglycaemia with ketosis (no prior history of diabetes mellitus) that was successfully treated with lipid apheresis. This sometimes is an early modality for treatment in adults; however, it remains a last resort in children, used only for severe cases. A brief literature review on severe HTG-AP and its management is also provided.
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Aphérèse , Hypertriglycéridémie , Pancréatite , Humains , Femelle , Hypertriglycéridémie/thérapie , Hypertriglycéridémie/complications , Adolescent , Pancréatite/thérapie , Aphérèse/méthodes , Incapacités de développement , Triglycéride/sang , Résultat thérapeutiqueRÉSUMÉ
Consider a more conservative approach to fluid resuscitation in mild acute pancreatitis to avoid fluid overload without sacrificing patient-oriented clinical outcomes.
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Traitement par apport liquidien , Pancréatite , Humains , Traitement par apport liquidien/méthodes , Pancréatite/thérapie , Maladie aigüeRÉSUMÉ
This study presents a multi-center clinical data management platform that facilitates unified and structured management of real-world data and serves as an ideal tool to enhance the quality and progress of clinical research related to severe acute pancreatitis (SAP). The use of the platform enables clinical teams to obtain safe, accurate, structurally unified, traceable, scene-clear, and fully functional real-world medical data in the diagnosis, treatment, and research of acute pancreatitis (AP).
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Pancréatite , Humains , Pancréatite/thérapie , Maladie aigüe , Gestion des donnéesRÉSUMÉ
BACKGROUND: Acute biliary pancreatitis (ABP) is a clinical common acute abdomen. After the first pancreatitis, relapse rate is high, which seriously affects human life and health and causes great economic burdens to family and society. According to a great many research findings, endoscopic retrograde cholangiopancreatography (ERCP) is an effective treatment method. However, whether ERCP should be performed in early stage of ABP is still controversial in clinical practice. METHODS: Related articles were retrieved from Pubmed, Web of Science core library, Nature, Science Direct, and other databases published from January 2000 until now. The keywords included early ERCP, delayed ERCP, ABP, laparoscopy, and cholecystectomy, all which were connected by "or" and "and". The language of articles was not restricted during the retrieval and Review Manager5.3 was employed to perform meta-analysis of experimental data. Finally, a total of 8 eligible articles were selected, including 8,801 patients. RESULTS: The results of the meta-analysis demonstrated that no remarkable differences were detected in the incidence of complications, mortality, and operation time between patients undergoing ERCP in early stage and those receiving delayed ERCP. However, the hospitalization time of patients in experimental group was notably shorter than that among patients in control group. CONCLUSINS: Early ERCP treatment is as safe as late ERCP treatment for biliary pancreatitis, and can significantly shorten the hospital stay. Hence, the therapy was worthy of clinical promotion. The research findings provided reference and basis for clinical treatment of relevant diseases.
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Cholangiopancréatographie rétrograde endoscopique , Apprentissage profond , Pancréatite , Humains , Cholangiopancréatographie rétrograde endoscopique/méthodes , Pancréatite/chirurgie , Pancréatite/thérapie , Pancréatite/complications , Maladie aigüe , Durée du séjour/statistiques et données numériques , Résultat thérapeutique , Durée opératoire , Délai jusqu'au traitementSujet(s)
Pancréatite , Humains , Pancréatite/thérapie , Maladie aigüe , Indice de gravité de la maladieSujet(s)
Hypertriglycéridémie , Pancréatite , Plasmaphérèse , Complications de la grossesse , Humains , Plasmaphérèse/méthodes , Femelle , Hypertriglycéridémie/thérapie , Hypertriglycéridémie/complications , Pancréatite/thérapie , Pancréatite/étiologie , Grossesse , Adulte , Complications de la grossesse/thérapie , Maladie aigüeRÉSUMÉ
PURPOSE OF REVIEW: Radiographic imaging of the pancreas has drawn recent interest as pancreas volume may serve as a biomarker in identifying the likelihood of diabetes development, subtyping diabetes, and identifying prognostic indicators of poor ultimate outcomes. In this review, the role of pancreas imaging is discussed in various forms of diabetes including type 1 diabetes (T1D), type 2 diabetes (T2D), and diabetes of the exocrine pancreas, particularly diabetes following acute or chronic pancreatitis. RECENT FINDINGS: Recent literature of quantitative pancreatic imaging correlating with various forms of diabetes was reviewed. Imaging-derived pancreas volumes are lower in individuals with diabetes, in particular those with T1D. Additionally, morphologic changes, enhancement characteristics, fat content, and MRI signal changes have been observed in different diabetes subtypes. These characteristics, as well as potential confounding variables, are reviewed. Additionally, future areas of research in MRI, CT radiomics, and pancreatitis-related imaging predictors of diabetes are discussed. SUMMARY: Increased understanding of pancreas imaging features which predict diabetes and gauge prognosis has the potential to identify at-risk individuals and will become increasingly important in diabetes care. This article reviews the current knowledge of common pancreas imaging features as well as future directions of ongoing research in diabetes imaging.
Sujet(s)
Diabète de type 1 , Diabète de type 2 , Imagerie par résonance magnétique , Pancréas , Humains , Imagerie par résonance magnétique/méthodes , Pancréas/imagerie diagnostique , Pancréas/anatomopathologie , Diabète de type 1/complications , Diabète de type 2/complications , Pronostic , Tomodensitométrie , Pancréatite/imagerie diagnostique , Pancréatite/étiologie , Pancréatite/thérapieRÉSUMÉ
BACKGROUND: To clarify the psychological experience and coping strategies in patients with acute pancreatitis in pregnancy (APIP) and propose interventional measures to improve pregnancy outcomes in these women. With an increasing trend of pregnant women in advanced ages and multiparous women, the incidence of APIP has significantly increased. Pregnancy accompanied by concurrent pancreatitis may subject these women to notable psychological stress, which is a factor that has been infrequently reported in previous studies. METHODS: APIP patients were interviewed from December 2020 to June 2021. Data were collected through semi-structured interviews based on an outline, including six questions. The interviews were recorded and analyzed using qualitative content analysis until data saturation was reached. RESULTS: Ten APIP patients were interviewed and four themes were identified, including excessive psychological burden, uncomfortable experience, urgent requirement for adequate medical resources, and importance of social support. CONCLUSION: Patients with APIP suffer from significant psychological stress due to their medical conditions and management. They desired adequate medical resources and social support. The local health department, hospital administrators, and medical staff should understand the psychological requirements and provide adequate healthcare and education that are easily accessible to these APIP patients. In addition, family support should also be encouraged to promote APIP patients' recovery.
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, Pancréatite , Complications de la grossesse , Soutien social , Stress psychologique , Adulte , Femelle , Humains , Grossesse , Pancréatite/psychologie , Pancréatite/thérapie , Complications de la grossesse/psychologie , Complications de la grossesse/thérapie , Femmes enceintes/psychologie , Recherche qualitative , Stress psychologique/psychologieRÉSUMÉ
BACKGROUND: Severe acute pancreatitis (SAP) is a potentially lethal inflammatory pancreatitis condition that is usually linked to multiple organ failure. When it comes to SAP, the lung is the main organ that is frequently involved. Many SAP patients experience respiratory failure following an acute lung injury (ALI). Clinicians provide insufficient care for compounded ALI since the underlying pathophysiology is unknown. The mortality rate of SAP patients is severely impacted by it. OBJECTIVE: The study aims to provide insight into immune cells, specifically their roles and modifications during SAP and ALI, through a comprehensive literature review. The emphasis is on immune cells as a therapeutic approach for treating SAP and ALI. FINDINGS: Immune cells play an important role in the complicated pathophysiology ofSAP and ALI by maintaining the right balance of pro- and anti-inflammatory responses. Immunomodulatory drugs now in the market have low thepeutic efficacy because they selectively target one immune cell while ignoring immune cell interactions. Accurate management of dysregulated immune responses is necessary. A critical initial step is precisely characterizing the activity of the immune cells during SAP and ALI. CONCLUSION: Given the increasing incidence of SAP, immunotherapy is emerging as a potential treatment option for these patients. Interactions among immune cells improve our understanding of the intricacy of concurrent ALI in SAP patients. Acquiring expertise in these domains will stimulate the development of innovative immunomodulation therapies that will improve the outlook for patients with SAP and ALI.
Sujet(s)
Lésion pulmonaire aigüe , Pancréatite , Humains , Lésion pulmonaire aigüe/immunologie , Lésion pulmonaire aigüe/anatomopathologie , Lésion pulmonaire aigüe/étiologie , Pancréatite/immunologie , Pancréatite/thérapie , Pancréatite/anatomopathologie , Pancréatite/complications , Pancréas/immunologie , Pancréas/anatomopathologie , Poumon/immunologie , Poumon/anatomopathologie , Animaux , Immunothérapie/méthodesRÉSUMÉ
PURPOSE OF REVIEW: This review examines current research on healthcare disparities in pancreatitis, identifies knowledge gaps, and proposes strategies to develop targeted multilevel interventions to address inequities in pancreatitis care. RECENT FINDINGS: Current literature has identified patient, disease, and healthcare-level factors contributing to disparities in risk factors and health outcomes of pancreatitis. Moreover, social structures, economic systems, social vulnerability, and policy significantly influence the pancreatitis care continuum. SUMMARY: Understanding the root causes of health inequities is critical to developing effective approaches for the prevention, early detection, and management of pancreatitis.
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Disparités d'accès aux soins , Pancréatite , Humains , Pancréatite/thérapie , Facteurs de risque , Facteurs socioéconomiquesRÉSUMÉ
OBJECTIVE: Aim: The study is intended to consider acute pancreatitis from the point of view of its etiological structure, as well as demographic description, features of the clinical course, distribution of morphological forms, severity and consequences of the disease in different etiological variants. PATIENTS AND METHODS: Materials and Methods: The work was based on a retrospective analysis of the medical records of 677 patients with acute pancreatitis who underwent inpatient treatment from 2017 to 2022 in an emergency hospital and a tertiary regional hospital in Vinnytsia, Ukraine. RESULTS: Results: The etiological structure of the general sample was as follows: the alimentary factors - 37,5% of cases, biliary - 18,6%, alcohol - 14,0% and postoperative - 7,8%, respectively. The oldest patients were observed in the group with biliary AP (age [median, interquartile range] 61 [46-72] years), the youngest - in the group with alcoholic AP (age [median, interquartile range] 40 [35-47] years). Men significantly predominated in the groups with alimentary and alcoholic AP. A significant predominance of women was observed in the group with biliary AP (62,7% vs. 37,3%, p=0,0003). The highest mortality was in the alcoholic AP group (22,1%), also here was a significantly lower rate of inpatient bed days (6,0). Edematous AP was dominant in all etiological variants. While infected necrotic pancreatitis was significantly more often found in patients with alcoholic genesis (7,4%). CONCLUSION: Conclusions: The etiologic variations of acute pancreatitis differ by demographic and clinical indicators and require more detailed study to understand its prognosis, management, and development of effective prevention and treatment strategies.
Sujet(s)
Pancréatite , Humains , Mâle , Femelle , Études rétrospectives , Adulte d'âge moyen , Pancréatite/épidémiologie , Pancréatite/thérapie , Adulte , Sujet âgé , Ukraine/épidémiologie , Maladie aigüeRÉSUMÉ
BACKGROUNDS: Frequent hospitalization and the costs of hospitalization are the main burdens in China for patients with acute pancreatitis. Most admitted patients have mild disease conditions that do not require hospitalization. AIMS: Here, we compare some health and economic aspects of patients with mild acute pancreatitis who received nurse-led care at home visits against those who were hospitalized on follow-up. METHODS: Patients discharged from the hospital after treatment for mild acute pancreatitis received (NC cohort, n = 104) or did not receive (HN cohort, n = 141) regular home visits by nurses for treatment and care. Patients were rehospitalized by caregivers with or without help of nurse. RESULTS: Hospital readmission events occurred in both cohorts at a follow-up care time of 2 months. Compared with the time of discharge from the hospital, unwanted effects were higher in follow-up care in all patients (p < 0.001 for all). Patients in the NC cohort had less time to resolution of pain, less time to resumption of oral solid food intake, smaller number of patients with hospital readmissions, less average time of hospitalization, lower cost of care, and lower occurrence of unwanted effects than those of patients in the HN cohort during 2 months of follow-up care (p < 0.05 for all). CONCLUSIONS: Patients with mild acute pancreatitis who undergo treatment require nurse-led nontreatment intervention(s) for rehabilitation in follow-up. Nurse-led follow-up care at-home visits increase recovery, are beneficial and cost-effective, and decrease unwanted adverse effects in patients receiving treatment for mild acute pancreatitis. LEVEL OF EVIDENCE: IV. TECHNICAL EFFICACY: Stage 5.
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Visites à domicile , Pancréatite , Réadmission du patient , Humains , Mâle , Femelle , Pancréatite/soins infirmiers , Pancréatite/thérapie , Pancréatite/économie , Études rétrospectives , Adulte d'âge moyen , Adulte , Réadmission du patient/statistiques et données numériques , Visites à domicile/économie , Chine/épidémiologie , Maladie aigüe , Indice de gravité de la maladie , HospitalisationRÉSUMÉ
Acute-onset pancreatitis (AP) is common in dogs and presents diagnostic as well as management challenges. Until recently, the management of AP in dogs was based mainly on supportive and symptomatic care. Identification and management of a possible cause of the disease is important, but the majority of cases are considered to be idiopathic. Fluid therapy that is tailored to the patient's needs is crucial to provide adequate hydration while preventing overhydration. Antiemetics are required to control vomiting and fluid loss and aid in early nutritional support. Recognition and management of complications is also crucial. Furthermore, analgesics for abdominal pain are very important. More recently, pharmaceutical modification of the inflammatory cascade has gained interest and the first specific therapeutic agent for the treatment of AP, fuzapladib sodium, has been shown to have a reasonable expectation of effectiveness in a pilot study. This drug has been licensed for the treatment of clinical signs of AP in dogs in Japan and also has achieved FDA conditional approval in the US. Antibiotics should not be used indiscriminately but are indicated for patients with aspiration pneumonia, gastrointestinal bacterial translocation, or evidence of another bacterial infection. Proton pump inhibitors and plasma are not routinely prescribed in pancreatitis unless specifically indicated. Nonsteroidal anti-inflammatory drugs should be avoided. Corticosteroid therapy, once thought to be contraindicated, may have some beneficial effects, as shown in a single retrospective study. However, further studies are required before their routine use can be recommended. Finally, a surgical approach is rarely indicated.
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Maladies des chiens , Pancréatite , Chiens , Maladies des chiens/thérapie , Maladies des chiens/traitement médicamenteux , Maladies des chiens/diagnostic , Animaux , Pancréatite/médecine vétérinaire , Pancréatite/thérapie , Maladie aigüe , Traitement par apport liquidien/médecine vétérinaireRÉSUMÉ
PURPOSE OF REVIEW: This review endeavours to explore the aetiopathogenesis and impact of severe hypertriglyceridemia (SHTG) and chylomicronaemia on cardiovascular, and pancreatic complications and summarizes the novel pharmacological options for management. RECENT FINDINGS: SHTG, although rare, presents significant diagnostic and therapeutic challenges. Familial chylomicronaemia syndrome (FCS), is the rare monogenic form of SHTG, associated with increased acute pancreatitis (AP) risk, whereas relatively common multifactorial chylomicronaemia syndrome (MCS) leans more towards cardiovascular complications. Despite the introduction and validation of the FCS Score, FCS continues to be underdiagnosed and diagnosis is often delayed. Longitudinal data on disease progression remains scant. SHTG-induced AP remains a life-threatening concern, with conservative treatment as the cornerstone while blood purification techniques offer limited additional benefit. Conventional lipid-lowering medications exhibit minimal efficacy, underscoring the growing interest in novel therapeutic avenues, that is, antisense oligonucleotides (ASO) and short interfering RNA (siRNA) targeting apolipoprotein C3 (ApoC3) and angiopoietin-like protein 3âand/or 8â(ANGPTL3/8). SUMMARY: Despite advancements in understanding the genetic basis and pathogenesis of SHTG, diagnostic and therapeutic challenges persist. The rarity of FCS and the heterogenous phenotype of MCS underscore the need for the development of predictive models for complications and tailored personalized treatment strategies. The establishment of national and international registries is advocated to augment disease comprehension and identify high-risk individuals.
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Hypertriglycéridémie , Humains , Hypertriglycéridémie/complications , Hypertriglycéridémie/thérapie , Hypertriglycéridémie/génétique , Pancréatite/thérapie , Pancréatite/étiologie , Maladies cardiovasculaires/étiologie , Maladies cardiovasculaires/thérapieRÉSUMÉ
BACKGROUND: The primary objective of this study is to comparatively assess the safety of nasogastric (NG) feeding versus nasojejunal (NJ) feeding in patients with acute pancreatitis (AP), with a special focus on the initiation of these feeding methods within the first 48 h of hospital admission. METHODS: Studies were identified through a systematic search in PubMed, EMbase, Cochrane Central Register of Controlled Trials, and Web of Science. Four studies involving 217 patients were included. This systematic review assesses the safety and efficacy of nasogastric versus nasojejunal feeding initiated within 48 h post-admission in moderate/severe acute pancreatitis, with a specific focus on the timing of initiation and patient age as influential factors. RESULTS: The results showed that the mortality rates were similar between NG and NJ feeding groups (RR 0.86, 95% CI 0.42 to 1.77, P = 0.68). Significant differences were observed in the incidence of diarrhea (RR 2.75, 95% CI 1.21 to 6.25, P = 0.02) and pain (RR 2.91, 95% CI 1.50 to 5.64, P = 0.002) in the NG group. The NG group also showed a higher probability of infection (6.67% vs. 3.33%, P = 0.027) and a higher frequency of multiple organ failures. Subgroup analysis for early intervention (within 48 h) showed a higher risk of diarrhea in the NG group (RR 2.80, P = 0.02). No significant differences were found in the need for surgical intervention, parenteral nutrition, or success rates of feeding procedures. CONCLUSION: This meta-analysis highlights the importance of considering the method and timing of nutritional support in acute pancreatitis. While NG feeding within 48 h of admission increases the risk of certain complications such as diarrhea and infection, it does not significantly impact mortality or the need for surgical intervention.
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Nutrition entérale , Intubation gastro-intestinale , Pancréatite , Humains , Intubation gastro-intestinale/effets indésirables , Intubation gastro-intestinale/méthodes , Nutrition entérale/méthodes , Nutrition entérale/effets indésirables , Pancréatite/thérapie , Pancréatite/mortalité , Facteurs temps , Maladie aigüe , Diarrhée/étiologie , Hospitalisation/statistiques et données numériques , JéjunumRÉSUMÉ
Acute pancreatitis is a gastrointestinal emergency where diagnosis is based on typical symptoms, increased serum lipase concentration, and abdominal imaging. Local complications and organ failure in severe acute pancreatitis regularly necessitate treatment in the intensive care unit and are associated with increased mortality rates. Only optimal interdisciplinary treatment can improve the prognosis of patients with severe acute pancreatitis. This article gives guidance on the initial diagnostic and etiological examinations as well as on the evaluation of organ failure and the severity assessment according to common classification systems. Furthermore, the endoscopic management of biliary pancreatitis and infected necrosis is discussed and the basics of targeted volume therapy, nutrition, and indications for antibiotic treatment are reviewed.
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Service hospitalier d'urgences , Unités de soins intensifs , Pancréatite , Humains , Pancréatite/thérapie , Pancréatite/diagnostic , Maladie aigüe , Soins de réanimation/méthodes , Antibactériens/usage thérapeutique , PronosticRÉSUMÉ
Inflammation and tissue damage associated with pancreatitis can precede or occur concurrently with pancreatic ductal adenocarcinoma (PDAC). We demonstrate that in PDAC coupled with pancreatitis (ptPDAC), antigen-presenting type I conventional dendritic cells (cDC1s) are specifically activated. Immune checkpoint blockade therapy (iCBT) leads to cytotoxic CD8+ T cell activation and elimination of ptPDAC with restoration of life span even upon PDAC rechallenge. Using PDAC antigen-loaded cDC1s as a vaccine, immunotherapy-resistant PDAC was rendered sensitive to iCBT with elimination of tumors. cDC1 vaccination coupled with iCBT identified specific CDR3 sequences in the tumor-infiltrating CD8+ T cells with potential therapeutic importance. This study identifies a fundamental difference in the immune microenvironment in PDAC concurrent with, or without, pancreatitis and provides a rationale for combining cDC1 vaccination with iCBT as a potential treatment option.