Publications by authors named "Theresa Yeo"

Background: Post-operative incisional hernia (IH) is a common complication following abdominal surgery. Data regarding IH after major pancreatic surgery are limited. We aim to evaluate the long-term risk of IH following major pancreatic resection.

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Objective: To assess whether long-term survivors of pancreatic surgery show increased risk to develop impaired bone mineral density, osteoporosis, and vitamin D deficiency.

Background: Pancreatic resection poses a risk for malabsorption of fat-soluble vitamins and other micronutrients essential for bone mineralization. Here, we evaluated the long-term effects of pancreatic resection on bone mineral density (BMD) and its clinical sequelae.

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Background: Peripancreatic fluid collections after distal pancreatectomy and splenectomy are commonly identified on postoperative cross-sectional imaging. This study aimed to determine the incidence, natural history, and indications for intervention.

Methods: We conducted a retrospective review of patients with peripancreatic fluid collections after distal pancreatectomy with or without splenectomy between 2013 and 2018, approved by our institutional review board.

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Background: Communication between caregivers and clinical team members is critical for transitional care, but its quality and potential impact on outcomes are not well understood. This study reports on caregiver-reported quality of communication with clinical team members in the postpancreatectomy period and examines associations of these reports with patient and caregiver outcomes.

Methods: Caregivers of patients with pancreatic and periampullary malignancies who had undergone pancreatectomy were surveyed.

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Background: Limited English proficiency (LEP) is a limited ability to read, write, speak, and understand English. About 145,000 individuals with LEP will be diagnosed with a new cancer annually, and English remains the dominant language spoken in the U.S.

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Background: The purpose of this study was to examine the relationship between various respiratory conditions, including hypercapnic respiratory disease, and a multitude of resected pancreatic lesions.

Methods: This retrospective case-control study queried a prospectively maintained database of patients who underwent pancreaticoduodenectomy between January 2015 and October 2021. Patient data, including smoking history, medical history, and pathology reports, were recorded.

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Purpose: Patients with pancreatic and periampullary cancers may experience significant reduction in their quality of life and often rely on family and unpaid caregivers for assistance after surgery. However, as caregivers are not systematically identified, little is known about the nature, difficulty, and personal demands of assistance they provide. We aim to assess the frequency and difficulty of specific assistance caregivers provide and identify potential interventions that could alleviate the caregiving demands.

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Article Synopsis
  • - The study aimed to create an opioid reduction toolkit to decrease narcotic prescriptions and increase awareness of safe disposal among patients who underwent pancreatectomy surgery.
  • - Data from 159 patients showed a significant reduction in both the amount of opioids prescribed (from 225 MMEs to 75 MMEs) and consumed (from 109 MMEs to 15 MMEs) post-toolkit implementation, with no change in refill request rates.
  • - Patient awareness of safe disposal practices for unused opioids significantly improved, rising from 25% before the toolkit to 62% after its introduction.
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  • The study explores how Prominin-1 (Prom1), a component of epithelial cells, influences the healing of the extrahepatic bile duct epithelium after injury, particularly in cholangiopathies.
  • Researchers found that Prom1-expressing progenitor cells in the extrahepatic bile duct quickly proliferate and differentiate into cholangiocytes to restore the epithelium following injury.
  • Prom1 deficiency resulted in significant abnormalities in peribiliary glands and impaired organoid function, highlighting its crucial role in maintaining cell structure and promoting recovery after bile duct damage.
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Background: Distress screening of cancer patients is mandated by the American College of Surgeons Commission on Cancer. Clinical implementation remains limited, particularly in surgical oncology settings in individuals with pancreaticobiliary cancers.

Study Design: This study evaluated differences in mean distress scores based on the National Comprehensive Cancer Network Distress Thermometer & Problem List for patients with pancreaticobiliary cancers, benign pancreatic conditions, and for their significant others (SOs).

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Article Synopsis
  • Researchers hypothesized that the TWEAK/FN14 signaling pathway stimulates the proliferation of these Prom1-expressing HPCs, enhancing liver fibrosis in BA.
  • Experimental results showed that blocking FN14 reduced liver damage and ductular reactions in a mouse model, while signs of activation in BA patients suggested that TWEAK/FN14 is linked to poor outcomes after surgery for bile drainage.
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Background: Anterior shoulder dislocation is a common presentation to the emergency department (ED). Dislocations are spontaneous or traumatic. Generally, a reduction is performed under procedural sedation and analgesia (PSA).

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Background: Family and other unpaid caregivers play an active role in the recovery of individuals with pancreatic and periampullary cancer after pancreatectomy. However, little is known about caregivers' experiences and how to better support them.

Methods: Caregivers accompanying patients to 1-month postpancreatectomy visits at 3 hospitals completed an electronic survey between November 2018 and February 2020.

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Background: We hypothesized that pancreatic and periampullary adenocarcinoma recurrence after surgical resection may be affected by the shedding of malignant epithelial cells during surgical dissection and that this may have implications for disease recurrence and survival.

Study Design: In this ongoing, investigator-initiated prospective randomized controlled trial, patients with pancreatic and periampullary adenocarcinoma were randomized intraoperatively, postresection into 3 study arms: peritoneal lavage using 10 L normal saline or distilled water, or control group with no lavage. Peritoneal fluid was sampled for cytologic analysis (cytospin, cellblock, immunohistochemistry-Ber-EP4 antibody) at 4 stages: (1) abdominal entry pre-dissection, (2) resection bed after tumor extirpation, (3) ex vivo resected specimen, and (4) resection bed postlavage.

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Objective: The objective of this study was to determine baseline health-related quality of life (QoL) in patients with pancreatic adenocarcinoma, periampullary cancers, and benign pancreaticobiliary (PB) conditions at the time of the first visit to a PB surgery clinic, and to explore the relationship between QoL, demographics, clinical parameters, complications, and survival.

Summary Background Data: Few studies have examined baseline QoL measures, the impact of comorbidities, age, sex, and smoking on subsequent postoperative complications and survival in patients with pancreatic adenocarcinoma, related PB cancers, and with benign PB conditions.

Methods: Data were collected from scheduled patients at a PB surgery clinic between 2013 and 2018.

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Background: Approximately 20% of patients diagnosed with pancreatic cancer will be eligible for hepato-pancreatico-biliary (HPB) surgery. Studies indicate that high-quality patient education is pivotal in reducing anxiety, improving clinical and performance outcomes, and increasing patient satisfaction.

Objectives: This quality improvement project sought to determine the perceived level of preparedness for patients undergoing HPB surgery and to identify information and knowledge gaps in preoperative education.

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Our institution's hepatopancreaticobiliary surgery service (HPBS) has demonstrated low rates of venous thromboembolism (VTE). We sought to determine whether the HPBS's regimented multimodal VTE prophylaxis pathway, which includes the use of mechanical prophylaxis, pharmacological prophylaxis, and ambulation, plays a role in achieving low VTE rates. We compared pancreatic surgeries in the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) participant user file with our institution's data from 2011 to 2016 using univariate, multivariate, and matching statistics.

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Background: Chronic obstructive respiratory disorders (ORDs) are linked to increased rates of cancer-related deaths. Little is known about the effects of hypercapnia (elevated CO) on development of pancreatic ductal adenocarcinoma (PDAC) and drug resistance.

Study Design: Two PDAC cell lines were exposed to normocapnic (5% CO) and hypercapnic (continuous/intermittent 10% CO) conditions, physiologically similar to patients with active ORD.

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Background: Pancreatic ductal adenocarcinoma (PDA) is a highly lethal cancer. Clinicians commonly refer to surgical therapy as resection with curative intent. However, PDA cure rates after resection remain unknown and the definition of cure remains vague.

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Background: This study was designed to determine whether a standardized recovery pathway could reduce post-pancreaticoduodenectomy hospital length of stay to 5 days without increasing complication or readmission rates.

Study Design: Pancreaticoduodenectomy patients (high-risk patients excluded) were enrolled in an IRB-approved, prospective, randomized controlled trial (NCT02517268) comparing a 5-day Whipple accelerated recovery pathway (WARP) with our traditional 7-day pathway (control). Whipple accelerated recovery pathway interventions included early discharge planning, shortened ICU stay, modified postoperative dietary and drain management algorithm, rigorous physical therapy with in-hospital gym visit, standardized rectal suppository administration, and close telehealth follow-up post discharge.

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The perceived benefit of utilizing patients' own imaging studies as a preoperative educational tool has not been studied. Pancreaticobiliary surgeons reviewed key findings of imaging studies with patients to educate about their diagnosis and inform treatment recommendations. Patient surveys were administered pre- and postvisit by an independent researcher to assess the impact of this practice.

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The Jefferson Pancreas Tumor Registry (JPTR) is a voluntary hospital-based registry of persons with pancreas and related periampullary cancers, premalignant lesions, and nonaffected family members (NAFMs). The ultimate goals of the JPTR are to provide a link between family history, gene mutations, and precision medicine therapy, and to identify high-risk NAFMs for potential surveillance screening. The JPTR is an Institutional Review Board approved longitudinal epidemiological study housed in the Department of Surgery at Thomas Jefferson University Hospital.

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Purpose: Heritable genetic variations can affect the inflammatory tumor microenvironment, which can ultimately affect cancer susceptibility and clinical outcomes. Recent evidence indicates that IDO2, a positive modifier in inflammatory disease models, is frequently upregulated in pancreatic ductal adenocarcinoma (PDAC). A unique feature of in humans is the high prevalence of two inactivating single-nucleotide polymorphisms (SNP), which affords the opportunity to carry out loss-of-function studies directly in humans.

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The prevalence of major depressive disorder (MDD) in pancreatic cancer (PC) has been reported up to 7 times higher than the general population. Despite repeated studies that show worse quality of life, survival outcomes, and treatment compliance in cancer patients with depression, baseline antidepressant use ranges from 15% to 27%. A meta-analysis of 6 prospective trials specific to PC estimates that 43% of patients with PC experience depression after diagnosis.

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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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