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Current Oncology is published by MDPI from Volume 28 Issue 1 (2021). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Multimed Inc..

Curr. Oncol., Volume 18, Issue 2 (April 2011) – 14 articles

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5840 KiB  
Article
Rare Synchronous Primary Large B-cell Gastric Lymphoma and Huge Retroperitoneal Liposarcoma with Inguinal Hernia in Chronic Hepatitis B Patient
by P. Ghimire, Guangyao Wu and L. Zhu
Curr. Oncol. 2011, 18(2), 103-108; https://doi.org/10.3747/co.v18i2.735 - 1 Apr 2011
Cited by 5 | Viewed by 573
Abstract
Multiple primary neoplasms with synchronous or metachronous presentation are rare, although the incidence has recently increased because of several factors. We present the case of a 53-year-old patient with chronic hepatitis B who presented with abdominal mass, mild abdominal pain, and inguinal hernia. [...] Read more.
Multiple primary neoplasms with synchronous or metachronous presentation are rare, although the incidence has recently increased because of several factors. We present the case of a 53-year-old patient with chronic hepatitis B who presented with abdominal mass, mild abdominal pain, and inguinal hernia. Computed tomography imaging demonstrated diffuse thickening of the gastric antral wall, together with a huge heterogeneous abdominal mass with predominant fat attenuation with septa that showed mild enhancement on contrast-enhanced scans. Distal gastrectomy and wide resection of the retroperitoneal mass was performed. Pathology exam led to a diagnosis of diffuse large B-cell gastric lymphoma with retroperitoneal liposarcoma. This is a rare case of a primary gastric lymphoma with another primary (sarcomatous) malignancy occurring synchronously in same patient. Full article
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Article
Chronic Lymphocytic Leukemia and Breast Cancer as Synchronous Primary in a Male—A Rare Combination
by Biswajit Dubashi, A. Jain, K. Srinivasan, V. Surendrakumar and S. Vivekanandam
Curr. Oncol. 2011, 18(2), 101-102; https://doi.org/10.3747/co.v18i2.731 - 1 Apr 2011
Cited by 5 | Viewed by 564
Abstract
Second malignancies are known to be associated with chronic lymphocytic leukemia (CLL). [...] Full article
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Case Report
Acute Aortic Thrombosis in Patients Receiving Cisplatin-Based Chemotherapy
by D.D. Fernandes, Martha L. Louzada, C.A. Souza and F. Matzinger
Curr. Oncol. 2011, 18(2), 97-100; https://doi.org/10.3747/co.v18i2.710 - 1 Apr 2011
Cited by 33 | Viewed by 666
Abstract
The increased risk of thrombosis in patients with active cancer has multiple causes. Acute thrombosis of the aorta is an exceedingly rare but potentially devastating complication in patients with cancer receiving cisplatin-based chemotherapy. Prompt diagnosis and definitive treatment are imperative to decrease morbidity [...] Read more.
The increased risk of thrombosis in patients with active cancer has multiple causes. Acute thrombosis of the aorta is an exceedingly rare but potentially devastating complication in patients with cancer receiving cisplatin-based chemotherapy. Prompt diagnosis and definitive treatment are imperative to decrease morbidity and mortality. Early diagnosis is difficult because initial presentation is often nonspecific, requiring a high degree of clinical suspicion. We report 4 cases of acute thrombosis of the abdominal aorta in patients with cancer receiving cisplatin-based chemotherapy. We review the clinical aspects, recommended investigation, and treatment of this potentially fatal complication. Full article
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Article
Phase II/III Study of Intraperitoneal Chemotherapy after Neoadjuvant Chemotherapy for Ovarian Cancer: NCIC CTG OV.21
by Helen J. Mackay, D. Provencheur, M. Heywood, D. Tu, E.A. Eisenhauer, A.M. Oza and R. Meyer
Curr. Oncol. 2011, 18(2), 84-90; https://doi.org/10.3747/co.v18i2.725 - 1 Apr 2011
Cited by 26 | Viewed by 962
Abstract
Three large randomized clinical trials have shown a survival benefit in women with stage III epithelial ovarian cancer (ECO) who receive intraperitoneal (IP) chemotherapy after optimal primary debulking surgery. The most recent Gynecologic Oncology Group study, GOG 172, showed an improvement [...] Read more.
Three large randomized clinical trials have shown a survival benefit in women with stage III epithelial ovarian cancer (ECO) who receive intraperitoneal (IP) chemotherapy after optimal primary debulking surgery. The most recent Gynecologic Oncology Group study, GOG 172, showed an improvement in median overall survival of approximately 17 months. That result led to a U.S. National Cancer Institute (NCI) clinical announcement recommending that IP chemotherapy be considered for this group of women with eoc. However, IP chemotherapy is associated with increased toxicity, and rates for completion of treatment are low (42% in GOG 172). The optimal IP regimen and duration of treatment has yet to be defined. Women undergoing chemotherapy before optimal debulking surgery were not included in the studies or in the NCI clinical announcement. The National Cancer Institute of Canada Clinical Trials Group has developed a protocol for a randomized phase II/III study which will examine whether IP platinum–taxane-based chemotherapy benefits women who have received neoadjuvant chemotherapy before optimal surgical debulking. To address whether the less systemically toxic carboplatin can be substituted for cisplatin IP, the first phase of the study will have 3 arms: 1 intravenous-only, and 2 IP-containing regimens. At the end of the first stage, and provided that IP therapy is feasible to administer in this patient population, one of the IP regimens, either IP carboplatin or IP cisplatin, will proceed into a phase III comparison with the intravenous arm. This exciting new study has gathered international support. Full article
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Article
A New Standard of Care for the Management of Peritoneal Surface Malignancy
by F. Mohamed, T. Cecil, B. Moran and Paul Hendrick Sugarbaker
Curr. Oncol. 2011, 18(2), 84-96; https://doi.org/10.3747/co.v18i2.663 - 1 Apr 2011
Cited by 111 | Viewed by 1011
Abstract
Cancer dissemination to peritoneal surfaces was, in the past, a lethal condition with a limited survival. Clinical and pharmacologic research have shown that options for both treatment and prevention are now reality. The diseases most commonly treated include peritoneal dissemination from appendiceal malignancy, [...] Read more.
Cancer dissemination to peritoneal surfaces was, in the past, a lethal condition with a limited survival. Clinical and pharmacologic research have shown that options for both treatment and prevention are now reality. The diseases most commonly treated include peritoneal dissemination from appendiceal malignancy, colorectal malignancy, and peritoneal mesothelioma. Selection factors are important to minimize the number of treated patients who will experience short-term benefit. Treatments involve cytoreductive surgery and perioperative chemotherapy. The intraperitoneal chemotherapy in the operating room is used with heat. Although this combined approach has been criticized, the informed oncologist will seek to identify those patients that may benefit from this more optimistic concept of peritoneal dissemination of cancer. Full article
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Article
Improving Cancer Control in Canada One Case at a Time: The “knowledge Translation in Cancer” Casebook
by Melissa C. Brouwers, J. Makarski, K. Garcia, S. Bouseh and T. Hafid
Curr. Oncol. 2011, 18(2), 76-83; https://doi.org/10.3747/co.v18i2.831 - 1 Apr 2011
Cited by 9 | Viewed by 586
Abstract
Purpose: In-the-field projects aiming to improve quality in cancer control provide a valuable complement to health services and knowledge translation (KT) research studies. The present paper describes the methods used to develop the Knowledge Translation for Cancer Control in Canada: A [...] Read more.
Purpose: In-the-field projects aiming to improve quality in cancer control provide a valuable complement to health services and knowledge translation (KT) research studies. The present paper describes the methods used to develop the Knowledge Translation for Cancer Control in Canada: A Casebook and its results. Methods: Nominations for in-the-field projects were accepted from individuals and organizations across Canada. The nominations had to demonstrate that a specific cancer control problem was identified; that a deliberate and organized effort was developed and implemented to address the identified problem; and that an evaluation—formal or informal—was used to assess the effort. A selection of nominated cases were chosen for more comprehensive analysis. Results: Thirty nominations were received. Most tackled problems related to treatment or diagnosis. Challenges related to breast, gastrointestinal, and genitourinary cancer were most common among the disease-specific projects, and most projects were regional in scope, with strategies targeting organizational solutions. Of the 30 nominations, 19 were chosen for further analysis. Of those 19, 5 were influenced by a KT model or theory, and 16 reported formal evaluation strategies. Surveys were the most common evaluation method, and process outcomes and clinical surrogate outcomes were the most frequently cited. Financial and administrative challenges were most often cited as key barriers. The key lessons learned concerned the need for a collaborative high-functioning team, project management, and support. Conclusions: The casebook provides tangible examples of in-the-field efforts to improve cancer control and provides practical direction for other individuals and institutions facing similar challenges. We discuss the interface between field projects and research projects in the KT arena and how mutual learning can help to optimize the value of each approach. Full article
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Article
Monitoring Response and Resistance to Treatment in Chronic Myeloid Leukemia
by Sarit Assouline and J.H. Lipton
Curr. Oncol. 2011, 18(2), 71-83; https://doi.org/10.3747/co.v18i2.391 - 1 Apr 2011
Cited by 30 | Viewed by 733
Abstract
Chronic myeloid leukemia (CML) results from expression of the constitutive tyrosine kinase activity of the Bcr-Abl oncoprotein. Imatinib, a tyrosine kinase inhibitor (TKI), is highly effective in the treatment of cml. However, some patients treated with imatinib will fail [...] Read more.
Chronic myeloid leukemia (CML) results from expression of the constitutive tyrosine kinase activity of the Bcr-Abl oncoprotein. Imatinib, a tyrosine kinase inhibitor (TKI), is highly effective in the treatment of cml. However, some patients treated with imatinib will fail to respond, will respond suboptimally, or will relapse because of primary or acquired resistance or intolerance. Research activities focusing on the mechanisms that underlie imatinib resistance have identified mutations in the BCR-ABL gene, clonal evolution, and amplification of the BCR-ABL gene as common causes. Cytogenetic and molecular techniques are currently used to monitor cml therapy for both response and relapse. With multiple and more potent therapeutic options now available, monitoring techniques can permit treatment to be tailored to the individual patient based on disease characteristics—for example, according to BCR-ABL mutation profile or to patient characteristics such as certain comorbid conditions. This approach should benefit patients by increasing the potential for better long-term outcomes. Full article
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Article
A Canadian Economic Analysis of U.S. Oncology Adjuvant Trial 9735
by Lisa Bernard, S. Verma, M.F. Thompson, B.C.F. Chan, N. Mittmann, L. Asma and S.E. Jones
Curr. Oncol. 2011, 18(2), 67-75; https://doi.org/10.3747/co.v18i2.701 - 1 Apr 2011
Cited by 7 | Viewed by 690
Abstract
Objectives: Recent results of the U.S. Oncology Adjuvant Trial 9735 demonstrated significant disease-free survival and overall survival benefits for docetaxel and cyclophosphamide (TC) compared with doxorubicin and cyclophosphamide (AC) in the adjuvant treatment of operable invasive breast cancer. Based [...] Read more.
Objectives: Recent results of the U.S. Oncology Adjuvant Trial 9735 demonstrated significant disease-free survival and overall survival benefits for docetaxel and cyclophosphamide (TC) compared with doxorubicin and cyclophosphamide (AC) in the adjuvant treatment of operable invasive breast cancer. Based on clinical data from the 9735 study, we evaluated the lifetime cost-effectiveness of TC compared with AC from the perspective of the Canadian publicly funded health care system. Methods: A Markov model was developed to estimate the incremental cost per quality-adjusted life-year gained and per life-year gained. Monthly survival and risk of disease recurrence up to 7 years were obtained directly from the overall survival and disease-free survival curves in the 9735 study; life-years beyond 7 years were estimated using the average life expectancy of age-matched women in the general Canadian population. Canadian-specific resource utilization and unit costs (in 2008 Canadian dollars) were applied to estimate costs for chemotherapy administration, chemotherapy-related toxicities, recurrence, and adverse events. Health-utility scores and decrements used in the calculation of quality-adjusted life-years were derived from the literature. Results: The lifetime cost per quality-adjusted life-year gained was $8,251 for TC compared with AC, and the cost per life-year gained was $6,842. The results were robust across a range of sensitivity analyses. Conclusions: Cost-effectiveness, combined with efficacy and an acceptable safety profile, support the adoption of TC as an alternative to AC in Canadian clinical practice for the adjuvant treatment of operable early breast cancer. Full article
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Article
An Appraisal of Life’s Terminal Phases and Euthanasia and the Right to Die
by L.Z.G. Touyz and S.J.J. Touyz
Curr. Oncol. 2011, 18(2), 65-66; https://doi.org/10.3747/co.v18i2.864 - 1 Apr 2011
Cited by 1 | Viewed by 563
Abstract
Euthanasia allows inevitable death, ideally embracing minimized, moderated, or eliminated pain, anxiety, suffering, loss of dignity, or distress. [...] Full article
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Article
Capecitabine or Infusional 5-fluorouracil for Gastroesophageal Cancer: A Cost–Consequence Analysis
by A.M. Horgan, J.J. Knox, G. Liu, C. Sahi, P.A. Bradbury and Natasha Leighl
Curr. Oncol. 2011, 18(2), 64-70; https://doi.org/10.3747/co.v18i2.730 - 1 Apr 2011
Cited by 5 | Viewed by 499
Abstract
Background: In patients with advanced gastroesophageal cancer, the phase III Randomized ECF for Advanced and Locally Advanced Esophagogastric Cancer 2 (REAL-2) trial demonstrated equivalent clinical efficacy when capecitabine (x) was substituted for 5-fluorouracil (5FU) in the epirubicin–cisplatin–5FU ( [...] Read more.
Background: In patients with advanced gastroesophageal cancer, the phase III Randomized ECF for Advanced and Locally Advanced Esophagogastric Cancer 2 (REAL-2) trial demonstrated equivalent clinical efficacy when capecitabine (x) was substituted for 5-fluorouracil (5FU) in the epirubicin–cisplatin–5FU (ECF) regimen. Methods: The present analysis compares the direct medical costs associated with both regimens. This cost–consequence analysis of direct medical costs took resource utilization data from the REAL-2 trial where available. Direct medical costs were derived from the perspective of the Canadian public health care system in 2008 Canadian dollars. Mean cost per patient on each treatment arm was calculated. Results: Drug costs from start of treatment until first progression, including pre- and post-chemotherapy medications and administration costs, totalled $5,344 for ECX as compared with $3,187 for ECF. Costs for treatment of adverse events were estimated at $2,621 for ECX as compared with $3,397 for ECF. An additional cost of $873 was associated with insertion of an implanted venous access. Total incremental cost of ECX over ECF was $508. Conclusions: In advanced gastroesophageal cancer, capecitabine is an attractive alternative to 5FU. Although the drug cost per se is greater, use of capecitabine is associated with decreased consumption of hospital resources. Not only does capecitabine fit with patient preference for oral therapy, it also avoids the inconvenience and complications of central venous access. Full article
263 KiB  
Editorial
In this issue of Current Oncology
by M. McLean
Curr. Oncol. 2011, 18(2), 57; https://doi.org/10.3390/curroncol18020001 - 1 Apr 2011
Viewed by 426
Abstract
In one of two manuscripts in this issue (Biomedical Ethics section), Dr. Jose Pereira from the University of Ottawa presents a fascinating review of the experience of the Benelux countries in their handling of euthanasia and physician-assisted suicide, practices that have been legal [...] Read more.
In one of two manuscripts in this issue (Biomedical Ethics section), Dr. Jose Pereira from the University of Ottawa presents a fascinating review of the experience of the Benelux countries in their handling of euthanasia and physician-assisted suicide, practices that have been legal there for almost a decade, starting with Holland in 2001. [...] Full article
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Article
Rash Rates with EGFR Inhibitors: Meta-Analysis
by Nicole Mittmann and S.J. Seung
Curr. Oncol. 2011, 18(2), 54-63; https://doi.org/10.3747/co.v18i2.605 - 1 Apr 2011
Cited by 17 | Viewed by 743
Abstract
Introduction: Currently marketed epidermal growth factor receptor inhibitors (EGFRIS) have been associated with high rates of dermatologic toxicity. Methods: We formally reviewed the literature at MEDLINE and EMBASE. Additional searches were conducted using Internet search engines. Studies were eligible if [...] Read more.
Introduction: Currently marketed epidermal growth factor receptor inhibitors (EGFRIS) have been associated with high rates of dermatologic toxicity. Methods: We formally reviewed the literature at MEDLINE and EMBASE. Additional searches were conducted using Internet search engines. Studies were eligible if they were randomized controlled clinical trials of egfris, specifically cetuximab and panitumumab, in which at least one arm consisted of a non-egfri treatment and rash safety data were reported. The random effects method was used to pool differences in incident rash rates. Results are summarized as differences in incident rash (EGFRIS therapy rate minus the non-EGFRIS therapy rate) with corresponding 95% confidence intervals (CIS) for all severity grades of rash and for grades 3 and 4 rash. Results: Sixteen studies met the initial inclusion criteria of randomized controlled trials comparing EGFRIS with non-EGFRIS therapy. Seven publications that provided information on all severity grades of rash were found to have an overall difference in incident rash rate of 0.74 (95% CI: 0.68 to 0.81; p < 0.01). Thirteen studies that reported the incidence of grades 3 and 4 rash showed an overall difference in the incident rash rate of 0.12 (95% CI: 0.09 to 0.14; p < 0.01) between EGFRIS and non-EGFRIS therapy. Sensitivity analyses showed that the results were generally robust, but sensitive to small samples. Conclusions: Results quantify the difference in rash rates between EGFRIS and non-EGFRIS therapy. Full article
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Article
Using a Positive Self-Talk Intervention to Enhance Coping Skills in Breast Cancer Survivors: Lessons from a Community-Based Group Delivery Model
by Ryan Hamilton, B. Miedema, L. MacIntyre and J. Easley
Curr. Oncol. 2011, 18(2), 46-53; https://doi.org/10.3747/co.v18i2.706 - 1 Apr 2011
Cited by 17 | Viewed by 1364
Abstract
Purpose: Cancer survivorship is a distinct phase of the cancer continuum, and it can have myriad associated stresses and challenges. The purpose of the present study was to evaluate the effectiveness of a positive self-talk (PST) intervention in enhancing the coping [...] Read more.
Purpose: Cancer survivorship is a distinct phase of the cancer continuum, and it can have myriad associated stresses and challenges. The purpose of the present study was to evaluate the effectiveness of a positive self-talk (PST) intervention in enhancing the coping skills and improving the psychological well-being of breast cancer survivors. Methods: Participants (n = 38) were recruited from 5 support groups in a small eastern Canadian province. Support groups were randomly assigned to either a control (n = 18) or an intervention (n = 20) condition. Intervention participants were pre-tested, received a 2-hour PST in-person group workshop and a 10-minute “booster” session by telephone, and completed post-test questionnaires 1 month later. Results: Intervention participants reviewed the workshop favourably. Nearly all participants used the intervention in everyday life, were able to accurately describe how PST works, and found that PST had a considerable impact on their ability to cope with cancer and related sequelae. However, the descriptive findings from the workshop evaluation did not translate into significant differences between the intervention and control groups on the psychometric measures. Conclusions: The PST intervention, delivered in a community group model, was positively received and effective in teaching participants about PST and how PST can be used to enhance coping skills for breast cancer patients. However, the intervention did not promote significantly greater levels of change in anxiety, depression, mood disturbance, or coping ability for intervention participants. The unique challenges of community-level psychological intervention are explored. Full article
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Article
Legalizing Euthanasia or Assisted Suicide: The Illusion of Safeguards and Controls
by José Pereira
Curr. Oncol. 2011, 18(2), 38-45; https://doi.org/10.3747/co.v18i2.883 - 1 Apr 2011
Cited by 85 | Viewed by 12765
Abstract
Euthanasia or assisted suicide—and sometimes both—have been legalized in a small number of countries and states. In all jurisdictions, laws and safeguards were put in place to prevent abuse and misuse of these practices. Prevention measures have included, among others, explicit consent by [...] Read more.
Euthanasia or assisted suicide—and sometimes both—have been legalized in a small number of countries and states. In all jurisdictions, laws and safeguards were put in place to prevent abuse and misuse of these practices. Prevention measures have included, among others, explicit consent by the person requesting euthanasia, mandatory reporting of all cases, administration only by physicians (with the exception of Switzerland), and consultation by a second physician. The present paper provides evidence that these laws and safeguards are regularly ignored and transgressed in all the jurisdictions and that transgressions are not prosecuted. For example, about 900 people annually are administered lethal substances without having given explicit consent, and in one jurisdiction, almost 50% of cases of euthanasia are not reported. Increased tolerance of transgressions in societies with such laws represents a social “slippery slope,” as do changes to the laws and criteria that followed legalization. Although the initial intent was to limit euthanasia and assisted suicide to a lastresort option for a very small number of terminally ill people, some jurisdictions now extend the practice to newborns, children, and people with dementia. A terminal illness is no longer a prerequisite. In the Netherlands, euthanasia for anyone over the age of 70 who is “tired of living” is now being considered. Legalizing euthanasia and assisted suicide therefore places many people at risk, affects the values of society over time, and does not provide controls and safeguards. Full article
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