Publications by authors named "Worth P"

Patients with metastatic pancreatic ductal adenocarcinoma survive longer if disease spreads to the lung but not the liver. Here we generated overlapping, multi-omic datasets to identify molecular and cellular features that distinguish patients whose disease develops liver metastasis (liver cohort) from those whose disease develops lung metastasis without liver metastases (lung cohort). Lung cohort patients survived longer than liver cohort patients, despite sharing the same tumor subtype.

View Article and Find Full Text PDF

Background: Pancreatic ductal adenocarcinoma (PDAc) is a lethal malignancy, attributed in part to high rates of rapid recurrence (rrPDAc) following resection. We sought to characterize recurrence rates over time and investigate factors predictive of rrPDAc.

Methods: A regional multi-institutional cancer registry, augmented with data from the National Surgical Quality Improvement Program database, was queried for patients with PDAc from 1996 to 2020.

View Article and Find Full Text PDF

Objective: To compare outcomes of laparoscopic transgastric necrosectomy (LTN) and direct endoscopic necrosectomy (DEN) in the management of retrogastric walled-off necrosis.

Summary Of Background Data: Surgical and endoscopic transgastric approaches are used to manage retrogastric pancreatic necrosis. Studies comparing these treatment modalities are lacking but would influence contemporary practice patterns.

View Article and Find Full Text PDF

Background: Umbilical hernias are highly prevalent in patients with liver dysfunction, ascites, and cirrhosis. This patient population carries significant perioperative risk and poses significant challenges because of their comorbidities. Literature suggests that elective repair of umbilical hernias can lead to better outcomes by reducing the risk of ascitic leak and compromised bowel.

View Article and Find Full Text PDF

Background: Minimally invasive distal pancreatectomy (MIDP) has established advantages over the open approach. The costs associated with robotic DP (RDP) versus laparoscopic DP (LDP) make the robotic approach controversial. We sought to compare outcomes and cost of LDP and RDP using propensity matching analysis at our institution.

View Article and Find Full Text PDF

Background: Spleen-preservation during minimally invasive distal pancreatectomy (MIDP) can be technically challenging and remains controversial. Our primary aim was to compare MIDP and splenectomy with spleen-preserving MIDP. Secondarily, we compared two spleen-preserving techniques.

View Article and Find Full Text PDF

Background: Iron content is increased in the substantia nigra of persons with Parkinson's disease and may contribute to the pathophysiology of the disorder. Early research suggests that the iron chelator deferiprone can reduce nigrostriatal iron content in persons with Parkinson's disease, but its effects on disease progression are unclear.

Methods: We conducted a multicenter, phase 2, randomized, double-blind trial involving participants with newly diagnosed Parkinson's disease who had never received levodopa.

View Article and Find Full Text PDF

Background: The optimal surgical management of pancreatic neuroendocrine tumors in patients with multiple endocrine neoplasia type 1 is controversial. This study sought to compare clinicopathologic characteristics and outcomes of multiple endocrine neoplasia type 1-associated and sporadic pancreatic neuroendocrine tumors from a large multi-national database.

Methods: A multi-institutional, international database of patients with surgically resected pancreatic neuroendocrine tumors was analyzed.

View Article and Find Full Text PDF

In pancreatic neuroendocrine tumors (PNETs), the impact of minimally invasive (MI) versus open resection on outcomes remains poorly studied. We queried a multi-institutional pancreatic cancer registry for patients with resected non-metastatic PNET from 1996−2020. Recurrence-free (RFS), disease-specific survival (DSS), and operative complications were evaluated.

View Article and Find Full Text PDF

"Self-transcendence" is proposed as a way in which individuals might find relief and support in the context of COVID-19, as well as other times of uncertainty. However, the authors propose that the multiple definitions of self-transcendence within existing literature lean towards the complex, sometimes obscure, and imprecisely spiritual. A concern is that this creates a circumstance, where the possibility of supporting self-transcendence in a wider population will become excluding in this complexity.

View Article and Find Full Text PDF

Importance: Although outcome of surgical resection of liver metastases from pancreatic neuroendocrine tumors (PNETs) has been extensively studied, little is known about surgery for locally advanced PNETs; it was listed recently by the European neuroendocrine tumor society as a major unmet need.

Objective: To evaluate the outcome of patients who underwent surgery for locally aggressive PNETs.

Design, Setting, And Participants: This retrospective single-center case series reviewed consecutive patients who underwent resection of T3/T4 PNETs at a single academic institution.

View Article and Find Full Text PDF

The journey of positive psychology becoming an established discipline (approximately 20 years) has seen both theoretical and empirical attention given to identity level, cognitive, behavioural and perceptual ways in which the 'best in us' can be identified and developed via what have come to be called 'positive psychology interventions' (PPIs). However, when we consider the anticipated impact of the 4IR on individuals we can predict the experiences of job losses, job change, and potentially the need for individuals to have multiple forms of work at any one time. If 'work' is viewed as one of the contributory structures to the nature of individual identity, then the consequences of the 4IR will impact the individual sense of identity, with a potential consequence to an individual sense of purpose, well-being and health.

View Article and Find Full Text PDF

Background: Gastrointestinal stromal tumors (GIST) are rare mesenchymal tumors, most commonly arising in the stomach. Surgical resection remains the mainstay of cure, and can often be accomplished laparoscopically. Tumor size and location guide selection of appropriate resection technique.

View Article and Find Full Text PDF

Objectives: The combination chemotherapy regimen capecitabine/temozolomide (CAPTEM) is efficacious for metastatic well-differentiated pancreatic neuroendocrine tumors (PNETs), but its role in the neoadjuvant setting has not been established.

Methods: The outcomes of all patients with locally advanced or resectable metastatic PNETs who were treated with neoadjuvant CAPTEM between 2009 and 2017 at 2 high-volume institutions were retrospectively reviewed.

Results: Thirty patients with locally advanced PNET (n = 10) or pancreatic neuroendocrine hepatic metastases (n = 20) received neoadjuvant CAPTEM.

View Article and Find Full Text PDF

Background: In 2017, the WHO updated their 2010 classification of pancreatic neuroendocrine tumors, introducing a well-differentiated, highly proliferative grade 3 tumor, distinct from neuroendocrine carcinomas. The aim of this study was to investigate the clinical significance of this update in a large cohort of resected tumors.

Methods: Using a multicenter, international dataset of patients with pancreatic neuroendocrine lesions, patients were classified both according to the WHO 2010 and 2017 schema.

View Article and Find Full Text PDF

Purpose: Assessment of treating metastatic ileal neuroendocrine tumors (NETs) with complete resection of primary tumor, nodal and liver metastases, plus administration of long-acting somatostatin analogues (SSAs).

Methods: A prospective database was queried for patients with ileal or pancreatic NETs with pathology-confirmed liver metastases and tumor somatostatin receptors. Patients did not have MEN-1 and had no previous treatment.

View Article and Find Full Text PDF

Background: Severe necrotizing pancreatitis may result in midbody necrosis and ductal disruption leaving an isolated pancreatic tail. The purpose of this study was to characterize outcomes among patients with an isolated tail remnant who underwent transgastric drainage or necrosectomy (endoscopic or surgical) and determine the need for subsequent operative management.

Materials And Methods: Patients with necrotizing pancreatitis and retrogastric walled-off collections treated by surgical transgastric necrosectomy or endoscopic cystgastrostomy ± necrosectomy between 2009 and 2017 were identified by a retrospective chart review.

View Article and Find Full Text PDF

Postoperative delayed gastric emptying (DGE) is a frustrating complication of pancreaticoduodenectomy (PD). We studied whether monitoring of postoperative gastric motor activity using a novel wireless patch system can identify patients at risk for DGE. Patients ( n = 81) were prospectively studied since 2016; 75 patients total were analyzed for this study.

View Article and Find Full Text PDF

Intratumoral phenotypic heterogeneity has been described in many tumor types, where it can contribute to drug resistance and disease recurrence. We analyzed ductal and neuroendocrine markers in pancreatic ductal adenocarcinoma, revealing heterogeneous expression of the neuroendocrine marker Synaptophysin within ductal lesions. Higher percentages of Cytokeratin-Synaptophysin dual positive tumor cells correlate with shortened disease-free survival.

View Article and Find Full Text PDF

Angiosarcoma of the pancreas is a very rare neoplasm accounting for 0.1% of pancreatic malignancies. This tumor is biologically very aggressive and frequently diagnosed at an unresectable stage.

View Article and Find Full Text PDF

Background: Surgical resection is the standard of care for unilateral adrenal adenomas and hyperplasia resulting in primary aldosteronism (PA). Resolution of PA following surgery is variable and some patients continue to require some or all of their antihypertensives. Prior studies have investigated factors contributing to "cure" of PA (defined as no hypertension [HTN] medications required postoperatively).

View Article and Find Full Text PDF

Background: Bile duct injury (BDI) after laparoscopic cholecystectomy (LC) has significant cost impact and is a significant source of morbidity and mortality. We undertook a population-based assessment of the national experience with BDI between 2001 and 2011 and compared this to our report for the prior decade.

Methods: Using the nationwide inpatient sample (NIS) for 2001-2011, we identified patients who underwent LC or partial cholecystectomy, with and without biliary reconstruction.

View Article and Find Full Text PDF

Background And Purpose: Non-motor symptoms (NMSs) occurring at an early stage of Parkinson's disease (PD) may impair quality of life more than motor symptoms. This study aimed to evaluate the severity of overall NMS profile and burden of NMSs in early PD patients, treated (time since confirmed diagnosis of 5 years or less) or drug naive (DN).

Methods: Cross-sectional data from an ongoing multicentre study (16 sites) were obtained and specifically an NMS data set from validated scales was analysed in treated and DN PD patients.

View Article and Find Full Text PDF