The Surveillance Strategy for Intraductal Pancreatic Mucinous Neoplasms: Criteria for Discontinuation.

Objective: To review the surveillance of IPMN, the risk of pancreatic cancer and the cost of surveillance.

Background: The increasing IPMN prevalence and low pancreatic cancer associated with IPMN question the necessity and cost-effectiveness of surveillance. Guidelines favour a 'watch and wait' approach, lacking clarity on stopping surveillance.

The Impact of Molecular Subtyping on Pathological Staging of Pancreatic Cancer.

Background: The long-term outcomes following surgical resection for pancreatic ductal adenocarcinoma (PDAC) remains poor, with only 20% of patients surviving 5 years after pancreatectomy. Patient selection for surgery remains suboptimal largely due to the absence of consideration of aggressive tumor biology.

Objective: The aim of this study was to evaluate traditional staging criteria for PDAC in the setting of molecular subtypes.

Perioperative interventions to reduce pancreatic fistula following pancreatoduodenectomy: meta-analysis.

Background: Data on interventions to reduce postoperative pancreatic fistula (POPF) following pancreatoduodenectomy (PD) are conflicting. The aim of this study was to assimilate data from RCTs.

Methods: MEDLINE and Embase databases were searched systematically for RCTs evaluating interventions to reduce all grades of POPF or clinically relevant (CR) POPF after PD.

External validation of postoperative pancreatic fistula prediction scores in pancreatoduodenectomy: a systematic review and meta-analysis.

Background: Multiple risk scores claim to predict the probability of postoperative pancreatic fistula (POPF) after pancreatoduodenectomy. It is unclear which scores have undergone external validation and are the most accurate. The aim of this study was to identify risk scores for POPF, and assess the clinical validity of these scores.

The effect of high intraoperative blood loss on pancreatic fistula development after pancreatoduodenectomy: An international, multi-institutional propensity score matched analysis.

Background: The association between intraoperative estimated blood loss and outcomes after pancreatoduodenectomy has, thus far, been rarely explored.

Methods: In total, 7,706 pancreatoduodenectomies performed at 18 international institutions composing the Pancreas Fistula Study Group were examined (2003-2020). High estimated blood loss (>700 mL) was defined as twice the median.

Surgeon experience contributes to improved outcomes in pancreatoduodenectomies at high risk for fistula development.

Background: Pancreatoduodenectomies at high risk for clinically relevant pancreatic fistula are uncommon, yet intimidating, situations. In such scenarios, the impact of individual surgeon experience on outcomes is poorly understood.

Methods: The fistula risk score was applied to identify high-risk patients (fistula risk score 7-10) from 7,706 pancreatoduodenectomies performed at 18 international institutions (2003-2020).

The Influence of Intraoperative Blood Loss on Fistula Development Following Pancreatoduodenectomy.

Objective: To investigate the role of intraoperative estimated blood loss (EBL) on development of clinically relevant postoperative pancreatic fistula (CR-POPF) after pancreatoduodenectomy (PD).

Background: Minimizing EBL has been shown to decrease transfusions and provide better perioperative outcomes in PD. EBL is also felt to be influential on CR-POPF development.

Precision Oncology in Surgery: Patient Selection for Operable Pancreatic Cancer.

Objective: We aimed to define preoperative clinical and molecular characteristics that would allow better patient selection for operative resection.

Background: Although we use molecular selection methods for systemic targeted therapies, these principles are not applied to surgical oncology. Improving patient selection is of vital importance for the operative treatment of pancreatic cancer (pancreatic ductal adenocarcinoma).

The Fistula Risk Score Catalog: Toward Precision Medicine for Pancreatic Fistula After Pancreatoduodenectomy.

Objective: This study aims to present a full spectrum of individual patient presentations of pancreatic fistula risk, and to define the utility of mitigation strategies amongst some of the most prevalent, and vulnerable scenarios surgeons encounter.

Background: The FRS has been utilized to identify technical strategies associated with reduced CR-POPF incidence across various risk strata. However, risk-stratification using the FRS has never been investigated with greater granularity.

Feasibility and clinical utility of endoscopic ultrasound guided biopsy of pancreatic cancer for next-generation molecular profiling.

Next-generation sequencing is enabling molecularly guided therapy for many cancer types, yet failure rates remain relatively high in pancreatic cancer (PC). The aim of this study is to investigate the feasibility of genomic profiling using endoscopic ultrasound (EUS) biopsy samples to facilitate personalised therapy for PC. Ninty-five patients underwent additional research biopsies at the time of diagnostic EUS.

Identification of an Optimal Cut-off for Drain Fluid Amylase on Postoperative Day 1 for Predicting Clinically Relevant Fistula After Distal Pancreatectomy: A Multi-institutional Analysis and External Validation.

Objective: The aim of this study was to investigate the relationship between drain fluid amylase value on the first postoperative day (DFA1) and clinically relevant fistula (CR-POPF) after distal pancreatectomy (DP), and to identify the cut-off of DFA1 that optimizes CR-POPF prediction.

Background: DFA1 is a well-recognized predictor of CR-POPF after pancreatoduodenectomy, but its role in DP is largely unexplored.

Methods: DFA1 levels were correlated with CR-POPF in 2 independent multi-institutional sets of DP patients: developmental (n = 338; years 2012 to 2017) and validation cohort (n = 166; years 2006 to 2016).

Characterization and Optimal Management of High-risk Pancreatic Anastomoses During Pancreatoduodenectomy.

Objective: The aim of this study was to identify the optimal fistula mitigation strategy following pancreaticoduodenectomy.

Background: The utility of technical strategies to prevent clinically relevant postoperative pancreatic fistula (CR-POPF) following pancreatoduodenectomy (PD) may vary by the circumstances of the anastomosis. The Fistula Risk Score (FRS) identifies a distinct high-risk cohort (FRS 7 to 10) that demonstrates substantially worse clinical outcomes.

Hypermutation In Pancreatic Cancer.

Pancreatic cancer is molecularly diverse, with few effective therapies. Increased mutation burden and defective DNA repair are associated with response to immune checkpoint inhibitors in several other cancer types. We interrogated 385 pancreatic cancer genomes to define hypermutation and its causes.

A Glasgow Tipple-transjugular intrahepatic portosystemic shunt insertion prior to Whipple resection.

Abdominal surgery performed in patients with significant liver disease and portal hypertension is associated with high mortality rates, with even poorer outcomes associated with complex pancreaticobiliary operations. We report on a patient requiring portal decompression via transjugular intrahepatic portosystemic shunt (TIPS) prior to a pancreaticoduodenectomy. The 49-year-old patient presented with pain, jaundice and weight loss.

SIRT3 & SIRT7: Potential Novel Biomarkers for Determining Outcome in Pancreatic Cancer Patients.

Purpose: The sirtuin gene family has been linked with tumourigenesis, in both a tumour promoter and suppressor capacity. Information regarding the function of sirtuins in pancreatic cancer is sparse and equivocal. We undertook a novel study investigating SIRT1-7 protein expression in a cohort of pancreatic tumours.

Serum amylase on the night of surgery predicts clinically significant pancreatic fistula after pancreaticoduodenectomy.

Objectives: Drainage after pancreaticoduodenectomy (PD) remains controversial because the risk for uncontrolled postoperative pancreatic fistula (POPF) must be balanced against the potential morbidity associated with prolonged and possibly unnecessary drainage. This study investigated the utility of the level of serum amylase on the night of surgery [postoperative day (PoD) 0 serum amylase] to predict POPF.

Methods: A total of 185 patients who underwent PD were studied.

'Step-port' laparoscopic cystgastrostomy for the management of organized solid predominant post-acute fluid collections after severe acute pancreatitis.

Background: Post-acute pancreatic collections (PAPCs) may require intervention when persistent, large or symptomatic. An open cystgastrostomy is an effective treatment option particularly for larger, solid predominant collections. A laparoscopic cystgastrostomy (LCG) as initially described, could be technically challenging.

Pre-operative cardiopulmonary exercise testing predicts adverse post-operative events and non-progression to adjuvant therapy after major pancreatic surgery.

Background: Surgery followed by chemotherapy is the primary modality of cure for patients with resectable pancreatic cancer but is associated with significant morbidity. The aim of the present study was to evaluate the role of cardiopulmonary exercise testing (CPET) in predicting post-operative adverse events and fitness for chemotherapy after major pancreatic surgery.

Methods: Patients who underwent a pancreaticoduodenectomy or total pancreatectomy for pancreatic head lesions and had undergone pre-operative CPET were included in this retrospective study.

Histomolecular phenotypes and outcome in adenocarcinoma of the ampulla of vater.

Purpose: Individuals with adenocarcinoma of the ampulla of Vater demonstrate a broad range of outcomes, presumably because these cancers may arise from any one of the three epithelia that converge at that location. This variability poses challenges for clinical decision making and the development of novel therapeutic strategies.

Patients And Methods: We assessed the potential clinical utility of histomolecular phenotypes defined using a combination of histopathology and protein expression (CDX2 and MUC1) in 208 patients from three independent cohorts who underwent surgical resection for adenocarcinoma of the ampulla of Vater.

The prognostic influence of resection margin clearance following pancreaticoduodenectomy for pancreatic ductal adenocarcinoma.

Introduction: The poor overall survival associated with pancreatic ductal adenocarcinoma (PDAC) despite complete resection suggests that occult metastatic disease is present in most at the time of surgery. Resection margin involvement (R1) following resection is an established poor prognostic factor. However, the definition of an R1 resection varies and the impact of margin clearance on outcome has not been examined in detail.

Utility of admission physiology in the surgical triage of isolated ballistic battlefield torso trauma.

Background: An assessment of hemodynamic stability is central to surgical decision-making in the management of battlefield ballistic torso trauma (BBTT).

Aims: To analyse the utility of admission physiological parameters in characterising hemodynamic stability.

Settings And Design: A retrospective analysis of consecutive admissions, with BBTT, to forward surgical facility in Afghanistan.