Publications by authors named "Eugene P Kennedy"

Ablative doses of stereotactic body radiotherapy (SBRT) may improve pancreatic cancer outcomes but may carry greater potential for gastrointestinal toxicity. Rucosopasem, an investigational selective dismutase mimetic that converts superoxide to hydrogen peroxide, can potentially increase tumor control of SBRT without compromising safety. GRECO-2 is a phase II, multicenter, randomized, double-blind, placebo-controlled trial of rucosopasem in combination with SBRT in locally advanced or borderline resectable pancreatic cancer.

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Purpose: Cisplatin contributes to acute kidney injury (AKI) and chronic kidney disease (CKD) that occurs with greater frequency and severity in older patients. Age-associated cisplatin sensitivity in human fibroblasts involves increased mitochondrial superoxide produced by older donor cells.

Experimental Design: Young and old C57BL/6 J murine models of cisplatin-induced AKI and CKD were treated with the SOD mimetic avasopasem manganese to investigate the potential antioxidant and anti-inflammatory effects.

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Article Synopsis
  • Recurrent brain tumors are a major cause of cancer-related deaths in children, and the study focused on indoximod, which inhibits a metabolic checkpoint called IDO and may enhance anti-tumor immunity post-chemotherapy.
  • A phase I trial was conducted with 81 pediatric patients, using indoximod in combination with temozolomide or radiation, to assess its safety and determine the appropriate dosage.
  • Results showed a median overall survival of 13.3 months for recurrent cases, with patients who responded to treatment experiencing significantly longer survival, and the findings indicate potential for further trials to evaluate indoximod's effectiveness in treating pediatric brain tumors.
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Purpose: Determinants of treatment outcomes to chemotherapy-based regimens in metastatic pancreatic ductal adenocarcinoma (PDA) remain ill-defined. Our aim was to examine tissue-based correlates of treatment response and resistance using matched baseline and on-treatment biopsies collected from patients with PDA treated in the first-line metastatic setting.

Experimental Design: Patients with treatment-naïve metastatic PDA were enrolled in a Phase II trial (NCT02077881) investigating gemcitabine plus nab-paclitaxel in combination with indoximod, an orally administered small-molecule inhibitor of the IDO pathway.

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Background: The indoleamine 2,3-dioxygenase (IDO) pathway is a key counter-regulatory mechanism that, in cancer, is exploited by tumors to evade antitumor immunity. Indoximod is a small-molecule IDO pathway inhibitor that reverses the immunosuppressive effects of low tryptophan (Trp) and high kynurenine (Kyn) that result from IDO activity. In this study, indoximod was used in combination with a checkpoint inhibitor (CPI) pembrolizumab for the treatment for advanced melanoma.

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Objectives: To explore the relationship between 16 symptom clusters (SCs), clinical and demographic influencing factors, and clinical outcomes over time in patients with pancreatic cancer (PC) undergoing surgical resection.

Sample & Setting: 143 patients with stage II PC undergoing surgical resection were recruited to participate in this longitudinal, exploratory study conducted at Thomas Jefferson University Hospital, a National Cancer Institute-designated cancer center.

Methods & Variables: Quality of life was measured preoperatively and at three, six, and nine months postoperatively.

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Objectives: To describe patient-reported symptoms and symptom clusters in patients with pancreatic cancer (PC) undergoing surgical resection.

Sample & Setting: 143 patients with stage II PC undergoing surgical resection alone or with subsequent adjuvant chemoradiation or chemotherapy were recruited to participate in a nested, longitudinal, exploratory study through convenience sampling techniques from Thomas Jefferson University Hospital, a National Cancer Institute-designated cancer center.

Methods & Variables: The Functional Assessment in Cancer Therapy-Hepatobiliary questionnaire was used to assess 17 PC symptoms preoperatively and at three, six, and nine months postoperatively.

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Indoleamine 2,3-dioxigenase 1 (IDO1) is the main enzyme that catalyzes the first, rate-limiting step of the so-called "kynurenine pathway", i.e., the metabolic cascade that converts the essential amino acid -tryptophan (Trp) into -kynurenine (Kyn).

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Background: Ethanol celiac plexus neurolysis (ECPN) has been shown to be effective in reducing cancer-related pain in patients with locally advanced pancreatic and periampullary adenocarcinoma (PPA). This study examined its efficacy in patients undergoing PPA resection.

Study Design: There were 485 patients who participated in this prospective, randomized, double-blind placebo controlled trial.

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Objectives: With the increased use of cross-sectional radiologic imaging in recent years, cystic lesions of the pancreas are being diagnosed with greater frequency. While pseuodocysts have historically accounted for the majority of benign pancreatic cysts, there are a number of rare, benign cystic lesions of the pancreas that can mimic neoplastic cysts. The objective of this study was to review a single institution's experience with these benign cystic lesions of the pancreas.

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Objectives: Understanding the factors contributing to improved postoperative patient outcomes remains paramount. For complex abdominal operations such as pancreaticoduodenectomy (PD), the influence of provider and hospital volume on surgical outcomes has been described. The impact of resident experience is less well understood.

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Background: Antiplatelet therapy with aspirin is prevalent among patients presenting for operative treatment of pancreatic disorders. Operative practice has called for the cessation of aspirin 7-10 days before elective procedures because of the perceived increased risk of procedure-related bleeding. Our practice at Thomas Jefferson University has been to continue aspirin therapy throughout the perioperative period in patients undergoing elective pancreatic surgery.

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Background: Recurrence of pancreatic adenocarcinoma after pancreaticoduodenectomy (PD) can be increased in patients with pancreatic fistula (PF). The purpose of our study was to determine if a relationship exists between PF and tumor recurrence (both peritoneal and local) in patients after PD for pancreatic ductal adenocarcinoma.

Study Design: A single-institution, retrospective analysis of 221 patients who underwent PD from January 2001 to December 2009 was conducted.

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Background: High-resolution, multiphase, computed tomography (CT) is a standard preoperative test prior to pancreatectomy, yet the clinical significance of routinely reported findings remains unknown.

Methods: We identified patients who underwent a pancreaticoduodenectomy for a periampullary adenocarcinoma (PA) over the previous 5 years and had a pancreas protocol CT at our institution. Clinicopathologic implications of reported CT findings were evaluated.

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Background: The overall complication rate after pancreaticoduodenectomy (PD) approaches 50 %, with anastomotic failure being the most frequent cause of serious postoperative morbidity. Hepaticojejunostomy leaks (also called bile leaks) are the second most common type of leak, behind pancreaticojejunostomy leaks, yet have been the focus of only a single study as reported by Suzuki et al. (Hepatogastroenterology 50:254-257, 12).

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Introduction: Pancreaticoduodenectomy (PD) has a high morbidity rate. Previous work has shown that hypoalbuminemia on postoperative day 1 (POD) to be contributory to post-esophagectomy complications. We set out to determine the impact of blood urea nitrogen (BUN) and albumin on POD 1 for patients undergoing PD.

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Objective: The objective of the study was to assess the efficacy of two pancreatic remnant closure techniques following distal pancreatectomy: (1) stapled or sutured closure versus (2) stapled or sutured closure plus falciform patch and fibrin glue reinforcement in the setting of a prospective randomized trial, with the primary endpoint being pancreatic fistula. Pancreatic stump leak following left-sided pancreatic resection (distal pancreatectomy) remains common. Despite multiple and varied techniques for closure, the reported leak rate varies up to 30 %.

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Background: As patients with pancreas and periampullary cancer (PPC) experience improved survival rates and longevity, the focus shifts toward living life while surviving cancer. Fatigue is the most commonly reported symptom in all cancer patients. Exercise has been found to effectively decrease fatigue levels and improve physical functioning in cancer patients.

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Background: Intraductal papillary mucinous neoplasm (IPMN) is an increasingly recognized pancreatic neoplasm characterized by excessive mucin secretion by ductal epithelial cells resulting in a cystic dilation of the pancreatic duct.

Aim: The objective of this study was to review Thomas Jefferson University's experience and the literature to determine the significance of extra-pancreatic mucin when associated with an IPMN.

Results: A retrospective analysis at our institution revealed only two cases of IPMN associated with extra-pancreatic mucin, which were classic IPMNs with rupture of the pancreatic duct and peritoneal mucin spillage.

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Background: Due to improved surgical outcomes and increased detection of pancreatic lesions, the resection of nonmalignant and indeterminate lesions of the pancreas has increased.

Aims: This study aims to assess the outcomes over an extended period of time and the clinical consequences of pancreaticoduodenectomy (PD) performed for nonmalignant indications.

Methods: Patients undergoing a PD between 2006 and 2010 were retrospectively identified and asked to complete a symptom survey.

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Background: Pancreaticoduodenectomy (PD) is a complex surgical procedure with a historically high morbidity rate. The goal of this study was to determine if the implementation of a 12-measure perioperative surgical care bundle (SCB) was successful in reducing infectious and other complications in patients undergoing PD compared with a routine preoperative preparation group (RPP).

Methods: In this retrospective cohort study utilizing the HPB surgery database at the Thomas Jefferson University, we analyzed clinical data from 233 consecutive PDs from October 2005 to May 2008 on patients who underwent RPP, and compared them with 233 consecutive PDs from May 2008 to May 2010 following the implementation of the SCB.

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Objectives: Pancreaticoduodenectomy (PD) remains a procedure that carries considerable morbidity. Numerous studies have evaluated factors to predict patients at risk. The aim of this study was to determine whether the surgical Apgar score (SAS) predicts perioperative morbidity and mortality.

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Following the resectional aspect of pancreaticoduodenectomy, three anastomoses are used to reestablish gastrointestinal continuity. The pancreatic-enteric anastomosis is by far the most problematic, and has been considered by many the Achilles heel of the pancreaticoduodenal resection. Multiple clinical trials have been published focusing on improving outcomes of the pancreatic-enteric anastomosis, including elements such as the use of prophylactic octreotide, the use of sealants, stenting of the pancreatic duct, and surgical technique.

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Background: Completion pancreatectomy (CP) is a reoperative procedure to excise remnant pancreatic tissue after a prior pancreatic resection. In this study, we document our institution's experience with CP for recurrent malignant disease of the pancreas, describing indications for surgery, procedures performed, and patient outcomes.

Methods: We performed a retrospective review of 861 patients from the pancreatic surgery database in the Department of Surgery of Thomas Jefferson University from October 2005 to December 2010 to identify all cases of CP performed for suspected malignant disease.

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The population of the United States is aging. Studies within the last several years have demonstrated that major abdominal operations in elderly patients can be done safely, but with increased rates of complications. We set out to determine the rates of morbidity and mortality in elderly patients undergoing gastric resection at a tertiary care university hospital.

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