Publications by authors named "Santvoort H"

Background: This study evaluates leading causes of in-hospital mortality after pancreatic resection nationwide to determine areas for improvement.

Methods: This observational cohort study included all in-hospital mortality after pancreatic resection in the Netherlands (2014-2019). Each fatality was considered to be caused by local complications (i.

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Objective: To investigate whether tangential versus segmental portomesenteric venous resection (PVR) impacts surgical and oncological outcome in patients undergoing pancreatoduodenectomy for pancreatic cancer with portomesenteric vein (PMV) involvement.

Summary Background Data: Current comparative studies on tangential versus segmental PVR as part of pancreatoduodenectomy for pancreatic cancer include all degrees of PMV involvement, including cases where tangential PVR may not be a feasible approach, limiting the clinical applicability.

Methods: International retrospective study in 10 centers from 5 countries, including all consecutive patients after pancreatoduodenectomy with PVR for pancreatic cancer with ≤180° PMV involvement on cross-sectional imaging at diagnosis (2014-2020).

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Introduction: Implementation of enhanced recovery after surgery principles has led to exploration of ambulatory pathways in surgery, including gastrointestinal surgery. However, implementation of ambulatory pathways after colorectal surgery has not been established yet. Previous studies suggest that discharge within 24 h in colorectal surgery is only possible with a clear protocol and careful patient selection.

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Background: Patients with painful chronic pancreatitis combined with a dilated main pancreatic duct and a normal size pancreatic head are treated according to guidelines by lateral pancreaticojejunostomy (LPJ). This systematic review compared outcomes of minimally invasive LPJ and open LPJ.

Methods: From 1 January 2000 until 13 November 2023, series reporting on minimally invasive LPJ and open LPJ in patients with symptomatic chronic pancreatitis were included.

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Acute pancreatitis is a common gastrointestinal disease leading to hospitalisation. Recent advancements in its management have primarily focussed on the development of early phase medical interventions targeting inflammatory pathways, optimisation of supportive treatment (including fluid resuscitation, pain management and nutritional management), appropriate use of antibiotics, implementation of minimally invasive interventions for infected necrosis, and the necessity of follow-up for long-term complications. These advancements have significantly improved personalised management and overall outcomes of acute pancreatitis.

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Introduction: Adjuvant chemotherapy improves survival in patients with resected pancreatic ductal adenocarcinoma (PDAC). The decision to initiate chemotherapy involves both patient and physician factors, decision-specific criteria, and contextual considerations. This study aimed to assess medical oncologists' views on adjuvant chemotherapy following pancreatic resection for PDAC.

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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.

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Importance: Patients with painful chronic pancreatitis and a dilated pancreatic duct can be treated by early surgery or an endoscopy-first approach.

Objective: To compare long-term clinical outcomes of early surgery vs an endoscopy-first approach using follow-up data from the ESCAPE randomized clinical trial.

Design, Setting, And Participants: Between April 2011 and September 2018, 88 patients with painful chronic pancreatitis were randomly assigned to early surgery or an endoscopy-first approach in 30 hospitals in the Netherlands collaborating in the Dutch Pancreatitis Study Group as part of the ESCAPE randomized clinical trial.

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Article Synopsis
  • International guidelines for imaging follow-up after pancreatic resection for pancreatic ductal adenocarcinoma (PDAC) are inconsistent, leading to varied follow-up strategies globally.
  • The study aimed to compare clinical outcomes, including treatment for recurrence and survival rates, between patients who received either symptomatic follow-up or routine imaging after PDAC surgery across 33 international centers.
  • A total of 333 patients were analyzed, showing that 29% had symptomatic follow-up while 71% underwent routine imaging, with overall survival rates being examined through statistical methods to identify the impact of the follow-up strategy on patient outcomes.
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Introduction And Purpose: It is unknown what the incidence of gastroscopy-diagnosed marginal ulceration is, while gastroscopy is a frequently chosen diagnostic modality in patients presenting with abdominal pain with a Roux-en-Y gastric bypass (RYGB) in history. The aim of this study was to examine the incidence and treatment of gastroscopy-diagnosed marginal ulceration in patients presenting with the first episode of abdominal pain after RYGB, in which gastroscopy is chosen as the first step in the diagnostic work-up.

Material And Methods: A post hoc analysis was performed of a prospective cohort of 2273 patients undergoing RYGB between 2014 and 2019 in a large non-academic hospital with a dedicated bariatric unit.

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Article Synopsis
  • The study aimed to assess treatment outcomes, overall survival (OS), and factors influencing OS in patients with T1 ampullary cancer, a rare type of gastrointestinal cancer.
  • Out of 244 patients with clinical T1 ampullary cancer, 75% underwent surgery, but a significant number were found to have more advanced disease upon further examination.
  • The results indicated a stark difference in survival based on disease classification, with poor prognostic factors including higher pathological N classification and poorly differentiated tumors, emphasizing the need for aggressive treatment like pancreatoduodenectomy for T1 cases.
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  • A new surgery technique called minimally invasive pancreatoduodenectomy (MIPD) is being studied as a possible better option than the traditional open surgery (OPD) for pancreas problems.
  • Researchers looked at data from hospitals in North America, Germany, the Netherlands, and Sweden from 2014 to 2020 and found that MIPD is used differently in each country.
  • They discovered that more patients were getting MIPD over time, especially in North America and the Netherlands, but there were also higher risks of complications in some cases.
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Objective: To measure the rate of LTS in resected PDAC and determine the association between predictors of OS and LTS.

Summary Background Data: Long-term survival (>5 y, LTS) remains rare in pancreatic ductal adenocarcinoma (PDAC). Multiple predictors of overall survival (OS) are known but their association with LTS remains unclear.

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Objective: To assess the prognostic impact of margin status in patients with resected intraductal papillary mucinous neoplasms (IPMN)-derived pancreatic ductal adenocarcinoma (PDAC) and to inform future intraoperative decision-making on handling differing degrees of dysplasia on frozen section.

Summary Background Data: The ideal oncologic surgical outcome is a negative transection margin with normal pancreatic epithelium left behind. However, the prognostic significance of reresecting certain degrees of dysplasia or invasive cancer at the pancreatic neck margin during pancreatectomy for IPMN-derived PDAC is debatable.

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Background: The effectiveness of radiotherapy for pancreatic cancer is debated. Patient-derived organoids (PDOs) already mimicked clinical radiation response in other cancer types, which could be valuable in pancreatic cancer as well. This study aimed to investigate whether PDOs can be used to model RT response in pancreatic cancer and to explore the presence of a dose-response correlation.

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Background And Aim: Intraductal papillary mucinous neoplasm (IPMN)-derived pancreatic ductal adenocarcinoma (PDAC) management is generally extrapolated from pancreatic intraepithelial neoplasia (PanIN)-derived PDAC guidelines. However, these are biologically divergent, and heterogeneity further exists between tubular and colloid subtypes.

Methods: Consecutive upfront surgery patients with PanIN-derived and IPMN-derived PDAC were retrospectively identified from international centers (2000-2019).

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Background: Postoperative cholangitis is a common complication after pancreatoduodenectomy that can occur with or without anatomical biliary obstruction. This study aimed to investigate the incidence, diagnosis, treatment, and risk factors of cholangitis after pancreatoduodenectomy.

Methods: We performed a retrospective cohort study of consecutive patients who underwent pancreatoduodenectomy in 2 Dutch tertiary pancreatic centers (2010-2019).

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Article Synopsis
  • Researchers studied a classification system called T1 sub-staging for IPMN-derived pancreatic ductal adenocarcinoma (PDAC), aiming to better understand its characteristics compared to other types of PDAC.
  • The study involved 747 surgery patients and found that increased T-stages correlated with worse overall survival, more advanced disease features, and higher recurrence rates.
  • The findings support the validity of T1 sub-staging, indicating that higher sub-stages relate to poorer outcomes and suggesting its importance in clinical assessments.
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Background: The efficacy and safety of minimally invasive distal pancreatectomy have been confirmed by randomized trials, but current patient selection and outcome of minimally invasive distal pancreatectomy in large international cohorts is unknown. This study aimed to compare the use and outcome of minimally invasive distal pancreatectomy in North America, the Netherlands, Germany, and Sweden.

Methods: All patients in the 4 Global Audits on Pancreatic Surgery Group (GAPASURG) registries who underwent minimally invasive distal pancreatectomy or open distal pancreatectomy during 2014-2020 were included.

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Radiation therapy (RT) initiates a local and systemic immune response which can induce antitumor immunity and improve immunotherapy efficacy. Neutrophils are among the first immune cells that infiltrate tumors after RT and are suggested to be essential for the initial antitumor immune response. However, neutrophils in tumors are associated with poor outcomes and RT-induced neutrophil infiltration could also change the composition of the tumor microenvironment (TME) in favor of tumor progression.

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Background And Aims: Endoscopic retrograde cholangiopancreatography (ERCP) with brush cytology is an important tool in the diagnosis of hepatobiliary malignancies. However, reported sensitivity of brush cytology is suboptimal and differs markedly per study. The aim of this study is to analyze the optimal technique of endobiliary brushing during ERCP.

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Background: Distinguishing postoperative fibrosis from isolated local recurrence (ILR) after resection of pancreatic ductal adenocarcinoma (PDAC) is challenging. A prognostic model that helps to identify patients at risk of ILR can assist clinicians when evaluating patients' postoperative imaging. This nationwide study aimed to develop a clinically applicable prognostic model for ILR after PDAC resection.

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Background: Disease recurrence remains one of the biggest concerns in patients after resection of pancreatic ductal adenocarcinoma (PDAC). Despite (neo)adjuvant systemic therapy, most patients experience local and/or distant PDAC recurrence within 2 years. High-level evidence regarding the benefits of recurrence-focused surveillance after PDAC resection is missing, and the impact of early detection and treatment of recurrence on survival and quality of life is unknown.

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