Publications by authors named "Zaed Z Hamady"

Article Synopsis
  • Patients undergoing pancreaticoduodenectomy for distal cholangiocarcinoma (dCCA) have a high recurrence rate, with 65% developing recurrence mostly within three years post-surgery.
  • The study identified common recurrence patterns, including local, distant, and mixed types, with primary sites being the pancreatic bed, liver, and lungs.
  • Key predictive factors for recurrence included cancer stage, type of surgical resection, and various histological features, helping inform potential follow-up treatments or strategies.
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Pancreatic ductal adenocarcinoma (PDAC) is usually diagnosed late, leading to a high mortality rate. Early detection facilitates better treatment options. The aim of this UK-based case-control study was to determine whether two validated tests for pancreatic exocrine insufficiency (PEI), namely, the C-mixed triglyceride breath test (C-MTGBT) and a faecal elastase (FE-1) test, can discriminate between patients with resectable PDAC versus healthy volunteers (HVs) along with a comparison group with chronic pancreatitis (CP).

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Background: The role of dysglycaemia as a risk marker for Pancreatic Ductal Adenocarcinoma (PDAC) is uncertain. We investigated the relationship between glycated haemoglobin (HbA1c) and incident PDAC using a retrospective cohort study within the UK Biobank.

Methods: A study involving 499,804 participants from the UK Biobank study was undertaken.

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Introduction: Pancreatic cancer (PC) is the fifth leading cause of cancer-related death in the UK. The incidence of PC is increasing, with little or no improvement in overall survival and the best chance for long-term survival in patients with PC relies on early detection and surgical resection. In this study, we propose the use of a diagnostic algorithm that combines tests of pancreatic exocrine function (faecal elastase-1 (FE-1) test and the C-mixed triglyceride (C-MTG) breath test) to identify patients with PC that urgently needs imaging studies.

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Background: The role of adjuvant therapy for biliary tract cancer is not clearly defined with conflicting results demonstrated across nonrandomized and randomized studies. We report a systematic review and meta-analysis to delineate the effect of AT on overall survival.

Methods: Eligible studies were identified from MEDLINE, EMBASE, Cochrane and PubMed.

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Objective: To investigate the influence of clear surgical resection margin width on disease recurrence rate after intentionally curative resection of colorectal liver metastases.

Background: There is consensus that a histological positive resection margin is a predictor of disease recurrence after resection of colorectal liver metastases. The dispute, however, over the width of cancer-free resection margin required is ongoing.

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Background: While cytokine therapy and the use of immunosuppressive cytokines such as transforming growth factor-β (TGF-β) offer great potential for the treatment of inflammatory bowel disease (IBD), issues concerning formulation, stability in vivo, delivery to target tissues, and potential toxicity need to be addressed. In consideration of these problems we engineered the human commensal bacterium Bacteroides ovatus for the controlled in situ delivery of TGF-β(1) and treatment of colitis.

Methods: Sequence encoding the human tgf-β1 gene was cloned downstream of the xylanase promoter in the xylan operon of B.

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We report on a case of an 85-year old man with an unusual presentation of small bowel obstruction. A palpable mass on digital rectal examination was subsequently visualised endoscopically with the appearance of a haematoma. The presence of a rectal mass as a presenting sign for small bowel obstruction is highly unusual and unreported in the literature.

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Background: Human growth factors are potential therapeutic agents for various inflammatory disorders affecting the gastrointestinal tract. However, they are unstable when administered orally and systemic administration requires high doses increasing the risk of unwanted side effects. Live microorganism-based delivery systems can overcome these problems although they suffer from the inability to control heterologous protein production and there are concerns regarding biosafety and environmental contamination.

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Background: Many colorectal liver metastasis patients are denied surgical resection on the basis of tumour size. The aim of this study was to explore the impact of metastasis size on modern liver resection.

Methods: Using a prospectively collected database, this was a retrospective analysis of 484 consecutive patients who underwent liver resection for colorectal liver metastases between 1993 and 2003.

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Objective: To analyze results of 70 patients undergoing left hepatic trisectionectomy and to clarify its current role.

Summary Background Data: Left hepatic trisectionectomy remains a complicated hepatectomy, and few reports have described the long-term results of the procedure.

Methods: Short-term and long-term outcomes of 70 consecutive patients who underwent left hepatic trisectionectomy from January 1993 to February 2004 were analyzed.

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Colorectal cancer remains the second most common cause of cancer death in the West. Every year in the UK alone, around 14 000 patients develop secondary hepatic deposits from a primary colorectal cancer. Surgery remains the mainstay of treatment for liver metastases.

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