53 results match your criteria: "Sunnybrook Health Sciences Centre-Odette Cancer Centre.[Affiliation]"

Purpose Of Review: Late dysphagia has a profound impact on quality of life in patients treated with chemoradiation therapy for advanced head and neck cancer and the number of survivors is growing. Traditional treatment methods are not uniformly successful in reducing the swallow impairment in these patients.

Recent Findings: Manifestations of late dysphagia are complex and do not follow a uniform trajectory.

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Purpose Of Review: The head and neck cancer (HNC) survivorship experience is unique among cancer populations. This review seeks to explore the HNC survivor experience associated with altered upper aerodigestive tract (UADT) function using principles of survivorship.

Recent Findings: HNC survivors experience complex physical, functional, and psychosocial challenges related to UADT dysfunction.

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Background And Purpose: To compare organ-at-risk doses and setup reproducibility using the prone and supine orientations in volumetric modulated arc therapy (VMAT) for rectal cancer.

Materials And Methods: Seventeen consecutive rectal cancer patients undergoing preoperative radiation were selected and setup in either the prone (N = 8) or supine (N = 9) position. All patients were treated using posteriorly-applied VMAT.

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Online Adaptive Radiation Therapy.

Int J Radiat Oncol Biol Phys

November 2017

Sunnybrook Health Sciences Centre/Odette Cancer Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada. Electronic address:

The current paradigm of radiation therapy has the treatment planned on a snapshot dataset of the patient's anatomy taken at the time of simulation. Throughout the course of treatment, this snapshot may vary from initial simulation. Although there is the ability to image patients within the treatment room with technologies such as cone beam computed tomography, the current state of the art is largely limited to rigid-body matching and not accounting for any geometric deformations in the patient's anatomy.

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Purpose: Hypofractionated partial breast irradiation (HPBI) involves treatment to the breast tumor using high doses per fraction. Recent advances in MRI-Linac solutions have potential in being applied to HPBI due to gains in the soft tissue contrast of MRI; however, there are potentially deleterious effects of the magnetic field on the dose distribution. The purpose of this work is to determine the effects of the magnetic field on the dose distribution for HPBI tumors using a tangential beam arrangement (TAN), 5-beam intensity-modulated radiation therapy (IMRT), and volumetric modulated arc therapy (VMAT).

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Introduction: While uptake of laparoscopic hepatectomy has improved, evidence on laparoscopic re-hepatectomy (LRH) for colorectal liver metastases (CRLMs) is limited and has never been compared to the open approach. We sought to define outcomes of LRH compared to open re-hepatectomy (ORH).

Methods: Patients undergoing re-hepatectomy for CRLM at 39 institutions (2006-2013) were identified.

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Background: Little is known about resource use in the care of neuroendocrine tumors (NETs). This study defined patterns of costs in NET management and compared them with those of a more common malignancy, colon cancer (CC).

Methods: Using a provincial cancer registry (2004-2012), NET patients were identified and matched at a ratio of 1-3 with CC patients.

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Background: The Odette Cancer Centre's recent implementation of a rapid diagnostic unit (rdu) for breast lesions has significantly decreased wait times to diagnosis. However, the economic impact of the unit remains unknown. This project defined the development and implementation costs and the operational costs of a breast rdu in a tertiary care facility.

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Magnetic resonance imaging (MRI) is being rapidly integrated for cancer treatments-such systems are referred to as MRI-guided radiation therapy (MRIgRT). As the magnet of an MRI scanner is always on, the presence of a strong static magnetic field from the MRI scanner during radiotherapy delivery presents new challenges. One of the challenges is that a personal radiation dosimeter used to estimate the radiation dose deposited in an individual wearing the device must be MR-safe.

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Secondary gastric cancer malignancies following a breast cancer diagnosis: A population-based analysis.

Breast

June 2017

Department of Surgery, University of Toronto, Canada; Sunnybrook Research Institute, Toronto, Canada; Division of General Surgery, Sunnybrook Health Sciences Centre - Odette Cancer Centre, Toronto, Canada. Electronic address:

Objective: To quantify the population-risk of developing gastric cancer (GC) following breast cancer (BC).

Methods: GC incidence following a ductal or lobular BC were separately compared to incidence in the general United States population using SEER data.

Results: GC rates were similar to the general population for ductal BC.

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The impact of blood transfusion on perioperative outcomes following gastric cancer resection: an analysis of the American College of Surgeons National Surgical Quality Improvement Program database.

Can J Surg

September 2016

From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen's University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre - Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum).

Background: Red blood cell transfusions (RBCT) carry risk of transfusion-related immunodulation that may impact postoperative recovery. This study examined the association between perioperative RBCT and short-term postoperative outcomes following gastrectomy for gastric cancer.

Methods: Using the American College of Surgeons National Surgical Quality Improvement Program database, we compared outcomes of patients (transfused v.

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Outcomes of Rehepatectomy for Colorectal Liver Metastases: A Contemporary Multi-Institutional Analysis from the French Surgical Association Database.

Ann Surg Oncol

December 2016

Institut Hospitalo-Universitaire (IHU), Institute for Minimally Hybrid Invasive Image-Guided Surgery, Université de Strasbourg, Strasbourg, France.

Background: Recurrence remains frequent after curative-intent hepatectomy for colorectal liver metastases (CRLM). We sought to define short- and long-term outcomes, and identify prehepatectomy factors associated with survival, following rehepatectomy (RH) for recurrence.

Methods: We conducted a multi-institutional cohort study of hepatectomy for CRLM over 2006-2013.

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Short and long-term outcomes of laparoscopic compared to open liver resection for colorectal liver metastases.

Hepatobiliary Surg Nutr

August 2016

Institut Hospitalo-Universitaire (IHU) de Strasbourg, Institute for Minimally Hybrid Invasive Image-Guided Surgery, Université de Strasbourg, Strasbourg, France;; Institut de Recherche sur les Cancers de l'Appareil Digestif (IRCAD), Strasbourg, France;; General Digestive and Endocrine Surgery Service, Nouvel Hôpital Civil, Strasbourg, France.

Background: Minimally invasive surgery (MIS) is now established as standard of care for a variety of gastrointestinal procedures for benign and malignant indications. However, due to concerns regarding superiority to open liver resection (OLR), the uptake of laparoscopic liver resection (LLR) has been slow. Data on long-term outcomes of LLR for colorectal liver metastases (CRLM) remain limited.

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The impact of red blood cell transfusions on perioperative outcomes in the contemporary era of liver resection.

Surgery

June 2016

Division of General Surgery, Sunnybrook Health Sciences Centre - Odette Cancer Centre, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada. Electronic address:

Background: Perioperative red blood cell transfusions (RBCTs) are common in patients undergoing partial hepatectomy. We sought to explore the relationship between RBCTs and posthepatectomy perioperative outcomes in the contemporary surgical era.

Methods: We reviewed all patients undergoing partial hepatectomy from 2003 to 2012.

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Is central venous pressure still relevant in the contemporary era of liver resection?

J Surg Res

January 2016

Division of General Surgery, Department of Surgery, ​Sunnybrook Health Sciences Centre - Odette Cancer Centre, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada. Electronic address:

Background: Perioperative red blood cell transfusion (RBCT) remains common after liver resection and carries risk of increased morbidity and worse oncologic outcomes. We sought to assess the factors associated with perioperative RBCT after hepatectomy with a focus on intraoperative hemodynamics.

Methods: We performed a retrospective review of our prospective hepatectomy database, supplemented by a review of anesthetic records of all patients undergoing hepatectomy with hemodynamic monitoring (arterial and central venous pressures [CVP]) from 2003-2012.

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Background: Peri-operative red blood cell transfusions (RBCT) may induce transfusion-related immunomodulation and impact post-operative recovery. This study examined the association between RBCT and post-pancreatectomy morbidity.

Methods: Using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) registry, patients undergoing an elective pancreatectomy (2007-2012) were identified.

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Introduction: Portal pedicle clamping (PPC) may impact micro-metastases' growth. This study examined the association between PPC and survival after a hepatectomy for colorectal liver metastases (CRLM).

Methods: A matched cohort study was conducted on hepatectomies for CRLM at a single institution (2003-2012).

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Trans-thoracic minimally invasive liver resection guided by augmented reality.

J Am Coll Surg

May 2015

Institut Hospitalo-Universitaire (IHU), Institute for Minimally Hybrid Invasive Image-Guided Surgery, Université de Strasbourg, Strasbourg, France; Institut de Recherche sur les Cancers de l'Appareil Digestif (IRCAD), Strasbourg, France; General Digestive and Endocrine Surgery Service, Nouvel Hôpital Civil, Strasbourg, France. Electronic address:

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Background: Red blood cell transfusions (RBCTs) are associated with cancer recurrence following resection of colorectal cancer. Their impact after colorectal liver metastases (CRLM) resection remains debated. We sought to explore the association between perioperative RBCT and oncologic outcomes following resection of CRLM.

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Systematic review of the use of pre-operative simulation and navigation for hepatectomy: current status and future perspectives.

J Hepatobiliary Pancreat Sci

May 2015

Institut de Recherche contre les Cancers de l'Appareil Digestif (IRCAD), Strasbourg, France; Institut Hospitalo-Universitaire de Strasbourg (IHU), Institute for Minimally Hybrid Invasive Image-Guided Surgery, Université de Strasbourg, Strasbourg, France; Division of General Surgery, Sunnybrook Health Sciences Centre - Odette Cancer Centre, Toronto, Ontario, Canada.

Pre-operative simulation using three-dimensional (3D) reconstructions have been suggested to enhance surgical planning of hepatectomy. Evidence on its benefits for hepatectomy patients remains limited. This systematic review examined the use and impact of pre-operative simulation and intraoperative navigation on hepatectomy outcomes.

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Background: Panitumumab is a fully human monoclonal antibody that targets EGFR. We aimed to compare chemoradiotherapy plus panitumumab with chemoradiotherapy alone in patients with unresected, locally advanced squamous-cell carcinoma of the head and neck.

Methods: In this international, open-label, randomised, controlled, phase 2 trial, we recruited patients with locally advanced squamous-cell carcinoma of the head and neck from 41 sites in nine countries worldwide.

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Lens dose is a concern during the treatment of facial lesions with anterior electron beams. Lead shielding is routinely employed to reduce lens dose and minimize late complications. The purpose of this work is twofold: 1) to measure dose pro-files under large-area lead shielding at the lens depth for clinical electron energies via film dosimetry; and 2) to assess the accuracy of the Pinnacle treatment planning system in calculating doses under lead shields.

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The impact of perioperative iron on the use of red blood cell transfusions in gastrointestinal surgery: a systematic review and meta-analysis.

Transfus Med Rev

October 2014

Division of General Surgery, University of Toronto, Toronto, Ontario, Canada; Division of Surgical Oncology, Sunnybrook Health Sciences Centre-Odette Cancer Centre, Toronto, Ontario, Canada; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada. Electronic address:

Perioperative anemia is common, yet detrimental, in surgical patients. However, red blood cell transfusions (RBCTs) used to treat anemia are associated with significant postoperative risks and worse oncologic outcomes. Perioperative iron has been suggested to mitigate perioperative anemia.

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Myelodysplastic syndrome successfully treated with adalimumab.

J Clin Oncol

January 2015

Sunnybrook Health Sciences Centre/Odette Cancer Centre, University of Toronto, Toronto, Ontario, Canada.

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An article in a recent edition of Current Oncology explored the validation of progression-free survival (pfs) as an endpoint in clinical trials of antineoplastic agents for metastatic colorectal cancer, metastatic renal cell carcinoma, and ovarian cancer. The support for pfs as a surrogate endpoint for overall survival (os) was elucidated. As with the aforementioned tumour types, advanced non-small-cell lung cancer (nsclc) has seen a rise in active agents since the year 2000.

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