Impact of body mass index and weight fluctuation on lymphedema risk in patients treated for breast cancer.

Identifying risk factors for lymphedema in patients treated for breast cancer has become increasingly important, given the current lack of standardization surrounding diagnosis and treatment. Reports on the association of body mass index (BMI) and weight change with lymphedema risk are conflicting. We sought to examine the impact of pre-operative BMI and post-treatment weight change on the incidence of lymphedema. From 2005 to 2011, 787 newly diagnosed breast cancer patients underwent prospective arm volume measurements with a Perometer pre- and post-operatively. BMI was calculated from same-day weight and height measurements. Lymphedema was defined as a relative volume change (RVC) of ≥ 10 %. Univariate and multivariate Cox proportional hazards models were used to evaluate the association between lymphedema risk and pre-operative BMI, weight change, and other demographic and treatment factors. By multivariate analysis, a pre-operative BMI ≥ 30 was significantly associated with an increased risk of lymphedema compared to a pre-operative BMI <25 and 25- <30 (p = 0.001 and p = 0.012, respectively). Patients with a pre-operative BMI 25- <30 were not at an increased risk of lymphedema compared to patients with a pre-operative BMI <25 (p = 0.409). Furthermore, a cumulative absolute weight fluctuation of 10 pounds gained/lost per month post-operatively significantly increased risk of lymphedema (HR: 1.97, p = < 0.0001). In conclusion, pre-operative BMI of ≥ 30 is an independent risk factor for lymphedema, whereas a BMI of 25- <30 is not. Large post-operative weight fluctuations also increase risk of lymphedema. Patients with a pre-operative BMI ≥ 30 and those who experience large weight fluctuations during and after treatment for breast cancer should be considered at higher-risk for lymphedema. Close monitoring or early intervention to ensure optimal treatment of the condition may be appropriate for these patients.

Osteoporosis: Common Side Effect.

For osteoporosis, standards of care are based on emerging evidence-based practice. Osteopenia, bone density that is lower than normal, is a less severe form of bone loss than osteoporosis. Osteoporosis is the most common metabolic bone disease, characterized by low mineral bone mass and microdeterioration of bone tissue.

Demystifying lymphedema: development of the lymphedema putting evidence into practice card.

Cancer treatment is the leading cause of lymphedema in developed countries. Development and severity of lymphedema have a significant impact on comfort, psychological distress, and overall quality of life. Incidence statistics have ranged from 5%-60%, with onset of symptoms ranging from immediately after treatment to 30 years after treatment. Oncology nurses caring for patients throughout the cancer trajectory have a critical role to play in early assessment of risk, prompt identification of lymphedema, and implementation of evidence-based, individualized treatment plans in collaboration with therapists. As part of an Oncology Nursing Society (ONS) project team, the authors of this article undertook a review of current literature to identify effective interventions for the treatment of secondary lymphedema. Following the guidelines established by the ONS Evidence-Based Practice Resource Team, the authors evaluated current clinical practice guidelines, systematic reviews, and research studies conducted since 1998. The team reviewed and synthesized the literature and developed evidence tables and a Putting Evidence Into Practice(R) (PEP) card. The data were reviewed by experts in the field of lymphedema management. The lymphedema ONS PEP card, a user-friendly, succinct summary of interventions, was released at the 33rd Annual ONS Congress in May 2008.

Oncology Nurse Practitioner Role: Recommendations From the Oncology Nursing Society's Nurse Practitioner Summit.

BACKGROUND: Oncology nurse practitioners (ONPs) are advanced practice RNs prepared at the graduate level with high-level knowledge and skills in oncology. Because of challenges in educational programs and variability in the scope of practice at the state and institutional level, many ONPs are challenged to practice to the full extent of their education, certification, and licensure. OBJECTIVES: The purpose of this article is to review issues affecting the education and practice patterns of ONPs and to identify solutions to address the challenges that exist for ONPs. METHODS: Members of the Oncology Nursing Society's Nurse Practitioner Summit summarized the challenges faced by ONPs related to education, training, practice, and professional development. FINDINGS: Efforts to promote ONP practice at the fullest extent of licensure and across various settings should be prioritized. Resources must be devoted to education, onboarding, and retention to integrate and retain ONPs as leaders of the interprofessional team.

Management of comorbid diabetes and cancer.

Diabetes mellitus is a frequent comorbidity of cancer patients. The growing epidemic of diabetes is anticipated to have tremendous impact on health care. Diabetes may negatively impact both cancer risk and outcomes of treatment. Oncology nurses are ideally positioned to identify patients at risk for complications that arise from cancer treatment in the setting of pre-existing diabetes. Additionally, oncology nurses may be the first to identify underlying hyperglycemia/hidden diabetes in a patient undergoing cancer treatment. Strategies for assessment and treatment will be discussed, along with specific strategies for managing hyperglycemia, potential renal toxicity, and peripheral neuropathy. Guidelines for aggressive treatment of hyperglycemia to minimize risks of complications will be reviewed. The role of interdisciplinary care, utilizing current evidence, is crucial to supporting patients and their families as they manage the challenges of facing two life-limiting diseases. Whole-person assessment and individualized treatment plans are key to maximizing quality of life for patients with cancer and diabetes.

Promoting High-Quality Cancer Care and Equity Through Disciplinary Diversity in Team Composition.

Disciplinary diversity in team composition is a valuable vehicle for oncology care teams to provide high-quality, person-centered comprehensive care. Such diversity facilitates care that effectively addresses the complex needs (biologic, psychosocial, and spiritual) of the whole person. The concept of professional or disciplinary diversity centers on differences in function, education, and culture, reflecting variety and heterogeneity in the perspectives of team members contributing to care. Thorough understanding of the skills, knowledge, and education related to each team member's professional or lay expertise is critical for members to be able to optimize the team's potential. Furthermore, respect and appreciation for differences and similarities across disciplinary cultures allow team members to create a positive collaboration dynamic that maintains a focus on the care of the person with cancer. We present a case study of one oncology team's provision of care to the patient, a Chinese immigrant woman with breast cancer. The case illuminates the strengths and challenges of disciplinary diversity in team composition in assessing and addressing potential barriers to care. Coordinated sharing of information among the varied team members facilitated understanding and care planning focused on the patient's concerns, needs, and strengths. Importantly, collaboration across the disciplinarily diverse set of team members facilitated high-quality oncology care and promoted equity in access to the full range of care options, including enrollment on a National Cancer Institute-sponsored clinical trial. Further implications of disciplinary diversity in oncology care teams are considered for both clinical practice and research.

Cardiotoxicity and capecitabine: a case report.

Oral fluoropyrimidines increasingly are being developed and studied as a novel treatment for breast, colorectal, and other cancers. Fluoropyrimidines are designed to generate 5-fluorouracil (5-FU) preferentially within tumors. Cardiotoxicity is a rare complication associated with 5-FU and oral fluoropyrimidine treatments. Chest pain is the most common presenting symptom, and, in many cases, the cardiotoxicity is partly or completely reversible. This article reviews fluoropyrimidine-induced cardiotoxicity and presents a case report of a woman who experienced this complication during capecitabine treatment.

Standardized method for quantification of developing lymphedema in patients treated for breast cancer.

PURPOSE: To develop a simple and practical formula for quantifying breast cancer-related lymphedema, accounting for both the asymmetry of upper extremities' volumes and their temporal changes. METHODS AND MATERIALS: We analyzed bilateral perometer measurements of the upper extremity in a series of 677 women who prospectively underwent lymphedema screening during treatment for unilateral breast cancer at Massachusetts General Hospital between August 2005 and November 2008. Four sources of variation were analyzed: between repeated measurements on the same arm at the same session; between both arms at baseline (preoperative) visit; in follow-up measurements; and between patients. Effects of hand dominance, time since diagnosis and surgery, age, weight, and body mass index were also analyzed. RESULTS: The statistical distribution of variation of measurements suggests that the ratio of volume ratios is most appropriate for quantification of both asymmetry and temporal changes. Therefore, we present the formula for relative volume change (RVC): RVC = (A(2)U(1))/(U(2)A(1)) - 1, where A(1), A(2) are arm volumes on the side of the treated breast at two different time points, and U(1), U(2) are volumes on the contralateral side. Relative volume change is not significantly associated with hand dominance, age, or time since diagnosis. Baseline weight correlates (p = 0.0074) with higher RVC; however, baseline body mass index or weight changes over time do not. CONCLUSIONS: We propose the use of the RVC formula to assess the presence and course of breast cancer-related lymphedema in clinical practice and research.