Critical reviews in oncology/hematology
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Crit. Rev. Oncol. Hematol. · Sep 2010
Identifying an accurate pre-screening tool in geriatric oncology.
The use of comprehensive geriatric assessment (CGA) in cancer patients older than 70 is recommended. Three pre-screening instruments have been proposed: the abbreviated comprehensive geriatric assessment (aCGA), the Vulnerable Elders Survey (VES-13), and the Groningen frailty index (GFI). The objective of the study was to identify the most efficient pre-screening tool that accurately determines individuals who may benefit from the entire CGA. ⋯ The aCGA was assessed whether each sub-component reliably predicts impairment on each sub-component of the full CGA. The majority of the participants were defined as being at risk of vulnerability: 68.14% had two or more impairments of the CGA or were cognitively impaired. The physical and disability questions are useful, but all other screening instruments miss too many cases.
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Crit. Rev. Oncol. Hematol. · Aug 2010
ReviewAbnormal immunity and stem/progenitor cells in acquired aplastic anemia.
Acquired aplastic anemia (AA) is considered as an immune-mediated bone marrow failure syndrome, characterized by hypoplasia and pancytopenia with fatty bone marrow. Abnormal immunity is the major factor mediating the pathogenesis of acquired AA. Activated DCs might promote the polarization to Th1 cells, and activate CD8(+) T cells. ⋯ Inversely, deficient MSCs, CD4(+)CD25(+) T cells, NK cells, NKT cells and early hematopoietic growth factors diminish the capacity of immune regulation and the support of hematopoiesis. As a result, stem/progenitor cells are significantly impaired to be disabled cells with markedly deficient proliferation, differentiation, induced apoptosis and dysfunctional response to growth factor stimuli, together with rare normal ones. Although some patients can be ameliorated by stem-cell transplantation or immunosuppressive therapy, more effective and convenient therapies such as patient-specific pluripotent iPS cells based on definite pathogenesis are expected.
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Crit. Rev. Oncol. Hematol. · Aug 2010
ReviewBrain metastases in HER2-positive breast cancer: the evolving role of lapatinib.
Due to improvements in diagnosis and systemic therapy, brain metastases are an increasingly common cause of morbidity and mortality for patients with advanced breast cancer. The incidence of symptomatic brain metastases among women with metastatic breast cancer ranges from 10% to 16%. ⋯ Surgery and radiation therapy are the primary approaches to the treatment of brain metastases but new chemotherapy and biological agents promise to play an important role in the future management of central nervous system disease. This article reviews the epidemiology, current treatment options and recent advances in the field, with a focus on HER2-positive disease and the emerging role of lapatinib for the treatment and prevention of brain metastases.
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Crit. Rev. Oncol. Hematol. · Apr 2010
Preferences of elderly cancer patients in their advance directives.
Efforts to improve the quality of end-of-life decision-making have emphasized the principle of individual autonomy to better ensure that patients receive care consistent with their preferences. Advance directives (ADs) can be vehicles for in-depth and ongoing discussions among health care professionals, patients, and families. The aim of our study was to identify preferences and values expressed in ADs of 50 elderly patients with cancer. ⋯ Content of ADs not only involved life-sustaining technology, but also psychosocial items and religious beliefs and values. All patients designated at least one surrogate. In conclusion, ADs should not be considered simply as another questionnaire, but more as a process to improve communication.
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Crit. Rev. Oncol. Hematol. · Mar 2010
Comorbidity, disability and geriatric syndromes in elderly breast cancer survivors. Results of a single-center experience.
Advancing age is a major risk factor for breast cancer. Long-term follow-up is recommended after diagnosis and treatment of early breast cancer. With older age, the risk of comorbid conditions and functional impairment increases. A useful tool in the management and follow-up of these elderly patients could be a comprehensive geriatric assessment (CGA). ⋯ Older patients with early breast cancer on follow-up have a high prevalence of comorbidity. In our series, function and independence were maintained. A selection bias cannot be excluded, as the fitter patients are those who usually continue with the follow-up, while those frail patients who do not continue because of their functional impairment are usually lost.