RESUMO
In this secondary analysis of an 8-wk single-arm feasibility study of weekday time-restricted eating (TRE), we explored the effects of TRE on body composition. Women (n = 22; ≥60 yr) who had completed chemotherapy for early-stage breast cancer and had a body mass index ≥25 kg/m2 were enrolled. Bioelectrical impedance analysis was performed before and after 8 wk of TRE, and nutritional status was evaluated by bioelectrical impedance vector analysis (BIVA). Body weight (p = 0.01) and total fat mass (p = 0.04) decreased with TRE. Phase angle was low (defined as ≤5.6°) in 86% of participants at baseline and did not change. Four participants who initially presented with obesity (>95% ellipse, BIVA) had favorable body composition modifications after TRE. Our study highlighted a less favorable body composition profile, poorer cell integrity and overhydration in these patients. BIVA was a useful method to assess body composition and hydration. A short TRE intervention was associated with decreased estimated fat mass and a favorable change in nutritional status in those with obesity.
Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Feminino , Humanos , Composição Corporal , Neoplasias da Mama/tratamento farmacológico , Impedância Elétrica , Estado Nutricional , Obesidade , Estudos de ViabilidadeRESUMO
Metabolic dysfunction and excess accumulation of adipose tissue are detrimental side effects from breast cancer treatment. Diet and physical activity are important treatments for metabolic abnormalities, yet patient compliance can be challenging during chemotherapy treatment. Time-restricted eating (TRE) is a feasible dietary pattern where eating is restricted to 8 h/d with water-only fasting for the remaining 16 h. The purpose of this study is to evaluate the effect of a multimodal intervention consisting of TRE, healthy eating, and reduced sedentary time during chemotherapy treatment for early-stage (I-III) breast cancer on accumulation of visceral fat (primary outcome), other fat deposition locations, metabolic syndrome and cardiovascular disease risk (secondary outcomes) compared with usual care. The study will be a two-site, two-arm, parallel-group superiority randomised control trial enrolling 130 women scheduled for chemotherapy for early-stage breast cancer. The intervention will be delivered by telephone, including 30-60-minute calls with a registered dietitian who will provide instructions on TRE, education and counselling on healthy eating, and goal setting for reducing sedentary time. The comparison group will receive usual cancer and supportive care including a single group-based nutrition class and healthy eating and physical activity guidelines. MRI, blood draws and assessment of blood pressure will be performed at baseline, after chemotherapy (primary end point), and 2-year follow-up. If our intervention is successful in attenuating the effect of chemotherapy on visceral fat accumulation and cardiometabolic dysfunction, it has the potential to reduce risk of cardiometabolic disease and related mortality among breast cancer survivors.
Assuntos
Neoplasias da Mama , Comportamento Sedentário , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Dieta Saudável , Dieta , Exercício FísicoRESUMO
BACKGROUND: While cardiotoxic chemotherapy is known to negatively impact cardiac function and hemoglobin levels, the impact on skeletal muscle has been understudied among patients. The purpose was to longitudinally characterize myosteatosis (muscle fat), skeletal muscle metabolism, and oxygen (O2) consumption during cardiotoxic chemotherapy for breast cancer. PATIENTS AND METHODS: Thirty-four patients with stage I-III breast cancer were enrolled before trastuzumab-containing and/or anthracycline-containing chemotherapy. We used magnetic resonance imaging to non-invasively quantify thigh myosteatosis (fat-water imaging), and lower leg metabolism (31P spectroscopy), O2 consumption (custom techniques), and peak power output during single-leg plantarflexion exercise at pre-, mid-, end-chemotherapy, and 1-year. We also measured pulmonary VO2peak and maximal leg press strength. RESULTS: During chemotherapy, VO2peak and leg press strength decreased while peak plantarflexion power output was maintained. At mid-chemotherapy, hemoglobin decreased (16%) and lower leg blood flow increased (37%) to maintain lower leg O2 delivery; exercise Pi:PCr and myosteatosis increased. Between mid- and end-chemotherapy, lower leg O2 extraction (28%) and O2 consumption (21%) increased, while plantarflexion exercise efficiency (watts/O2 consumed) decreased. At one year, VO2peak and leg press strength returned to pre-chemotherapy levels, but lower leg exercise O2 extraction, consumption and Pi:PCr, and myosteatosis remained elevated. CONCLUSION: Lower leg skeletal muscle blood flow and O2 extraction adapt to compensate for chemotherapy-related hemoglobin reduction for small muscle mass exercise but are insufficient to maintain large muscle mass exercise (pulmonary VO2peak, leg press strength). The excess O2 required to perform work, increased Pi:PCr ratio and myosteatosis together suggest suppressed fat oxidation during chemotherapy.
Assuntos
Neoplasias da Mama , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Exercício Físico/fisiologia , Feminino , Humanos , Músculo Esquelético/diagnóstico por imagem , Músculo Esquelético/metabolismo , Oxigênio/metabolismo , Consumo de Oxigênio/fisiologiaRESUMO
INTRODUCTION: Implementing effective strategies to transition care for individuals with colorectal cancer is an important tool to qualify care for affected individuals, as well as contribute to the dispensation of continuous and quality care to patients. OBJECTIVE: To evaluate the effectiveness of strategies to transition from hospital care to the community compared to usual care for colorectal cancer patients to reduce hospital stay, readmissions at 30 days, and visit to the emergency department up to 30 days. METHOD: Systematic review and meta-analysis followed the recommendations of PRISMA statement, with protocol registered in PROSPERO (CRD 42,020,162,249). Searches were carried out in May 2020 in the following databases: PubMed/MEDLINE, LILACS, EMBASE, and Cochrane Central. Meta-analysis was performed using a random-effects model. The measure of effect used for dichotomous outcomes was relative risk, and for continuous outcomes, the difference of means was used, with their confidence intervals of 95%. Heterogeneity was evaluated using inconsistency statistics. RESULTS: Of 631 identified studies, seven studies were included. The meta-analysis of the studies showed a reduction in readmissions at 30 days of 32% and a significant reduction in hospital stay time of approximately one and a half days, both of which were analyzed in favor of the group of care transition interventions. CONCLUSION: The findings showed effective care transition strategies for the transition of colorectal cancer patients, such as post-discharge active surveillance program, standardized protocol of improved recovery, and telephone follow-up. TRIAL REGISTRATION: CRD42020162249.
Assuntos
Neoplasias Colorretais , Transferência de Pacientes , Assistência ao Convalescente , Neoplasias Colorretais/terapia , Humanos , Tempo de Internação , Alta do PacienteRESUMO
BACKGROUND: An underlying cause of solid tumor resistance to chemotherapy treatment is diminished tumor blood supply, which leads to a hypoxic microenvironment, dependence on anaerobic energy metabolism, and impaired delivery of intravenous treatments. Preclinical data suggest that dietary strategies of caloric restriction and low-carbohydrate intake can inhibit glycolysis, while acute exercise can transiently enhance blood flow to the tumor and reduce hypoxia. The Diet Restriction and Exercise-induced Adaptations in Metastatic Breast Cancer (DREAM) study will compare the effects of a short-term, 50% calorie-restricted and ketogenic diet combined with aerobic exercise performed during intravenous chemotherapy treatment to usual care on changes in tumor burden, treatment side effects, and quality of life. METHODS: Fifty patients with measurable metastases and primary breast cancer starting a new line of intravenous chemotherapy will be randomly assigned to usual care or the combined diet and exercise intervention. Participants assigned to the intervention group will be provided with food consisting of 50% of measured calorie needs with 80% of calories from fat and ≤ 10% from carbohydrates for 48-72 h prior to each chemotherapy treatment and will perform 30-60 min of moderate-intensity cycle ergometer exercise during each chemotherapy infusion, for up to six treatment cycles. The diet and exercise durations will be adapted for each chemotherapy protocol. Tumor burden will be assessed by change in target lesion size using axial computed tomography (primary outcome) and magnetic resonance imaging (MRI)-derived apparent diffusion coefficient (secondary outcome) after up to six treatments. Tertiary outcomes will include quantitative MRI markers of treatment toxicity to the heart, thigh skeletal muscle, and liver, and patient-reported symptoms and quality of life. Exploratory outcome measures include progression-free and overall survival. DISCUSSION: The DREAM study will test a novel, short-term diet and exercise intervention that is targeted to mechanisms of tumor resistance to chemotherapy. A reduction in lesion size is likely to translate to improved cancer outcomes including disease progression and overall survival. Furthermore, a lifestyle intervention may empower patients with metastatic breast cancer by actively engaging them to play a key role in their treatment. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03795493 , registered 7 January, 2019.
Assuntos
Antineoplásicos/administração & dosagem , Neoplasias da Mama/terapia , Restrição Calórica , Dieta Cetogênica , Exercício Físico , Adaptação Fisiológica , Neoplasias da Mama/irrigação sanguínea , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Terapia Combinada/métodos , Carboidratos da Dieta/administração & dosagem , Gorduras na Dieta/administração & dosagem , Feminino , Humanos , Infusões Intravenosas , Imageamento por Ressonância Magnética , Refeições , Avaliação de Resultados em Cuidados de Saúde , Qualidade de Vida , Carga Tumoral , Hipóxia TumoralRESUMO
BACKGROUND: The survival rates of women with breast cancer have improved significantly over the last four decades due to advances in breast cancer early diagnosis and therapy. However, breast cancer survivors have an increased risk of cardiovascular complications following chemotherapy. While this increased risk of later occurring structural cardiac remodeling and/or dysfunction has largely been attributed to the cardiotoxic effects of breast cancer therapies, the effect of the breast tumor itself on the heart prior to cancer treatment has been largely overlooked. Thus, the objectives of this study were to assess the cardiac phenotype in breast cancer patients prior to cancer chemotherapy and to determine the effects of human breast cancer cells on cardiomyocytes. METHODS: We investigated left ventricular (LV) function and structure using cardiac magnetic resonance imaging in women with breast cancer prior to systemic therapy and a control cohort of women with comparable baseline factors. In addition, we explored how breast cancer cells communicate with the cardiomyocytes using cultured human cardiac and breast cancer cells. RESULTS: Our results indicate that even prior to full cancer treatment, breast cancer patients already exhibit relative LV hypertrophy (LVH). We further demonstrate that breast cancer cells likely contribute to cardiomyocyte hypertrophy through the secretion of soluble factors and that at least one of these factors is endothelin-1. CONCLUSION: Overall, the findings of this study suggest that breast cancer cells play a greater role in inducing structural cardiac remodeling than previously appreciated and that tumor-derived endothelin-1 may play a pivotal role in this process.
Assuntos
Neoplasias da Mama/complicações , Comunicação Celular/fisiologia , Endotelina-1/metabolismo , Hipertrofia Ventricular Esquerda/etiologia , Miócitos Cardíacos/fisiologia , Neoplasias da Mama/sangue , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Estudos de Casos e Controles , Linhagem Celular Tumoral , Células Cultivadas , Meios de Cultivo Condicionados/metabolismo , Endotelina-1/sangue , Feminino , Humanos , Hipertrofia/etiologia , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Miócitos Cardíacos/patologia , Comunicação Parácrina , Estudos Retrospectivos , Células Tumorais Cultivadas , Remodelação VentricularRESUMO
The "ringing of the bell" (RTB) ritual upon the completion of cancer treatment is a common tradition in many centres. There is a paucity of research investigating the impact of this experience on the cancer patient and their caregivers exiting treatment. The purpose of this study was to identify key concepts within the experiences of cancer patients and their caregivers related to the ritual of RTB. An interpretive description (ID) approach was used including open-ended interviews with two cancer patients and their two caregivers. All four participants perceived the experience of RTB as being a positive aspect in the transition out of active cancer treatment. Moreover, RTB created a sense of community and was an important milestone that was symbolic of returning back to "normal life" after cancer treatment. Future work should examine the effects of rituals such as ringing the bell among diverse patient populations and across the cancer transition continuum.
RESUMO
Sonner la ⪠cloche de l'espoir â« à la fin du traitement est une tradition courante dans de nombreux établissements de soins du cancer. Peu de recherches ont toutefois étudié l'effet de ce rituel sur les patients et les proches aidants. L'objectif de la présente étude est donc de déterminer les concepts clés qui se dégagent de l'expérience des patients atteints de cancer et des proches qui accomplissent ce rituel. L'étude utilise une approche descriptive interprétative, notamment sous forme d'entrevues à réponses ouvertes réalisées auprès de deux patients et des deux proches aidants qui les accompagnaient. Tous ont perçu le rituel de la cloche de l'espoir comme une expérience de transition positive marquant la fin du traitement actif. De plus, le rituel créait un esprit de communauté et constituait une étape importante symbolisant le retour à la ⪠vie normale â«. Les recherches à venir devront examiner l'effet des rituels, comme celui de la cloche de l'espoir, auprès de différentes populations de patients et à différents points de transition de l'expérience du cancer.
RESUMO
Following publication of the original article [1], we have been notified that one of the author names was listed incorrectly.
RESUMO
BACKGROUND: Anthracycline chemotherapy agents are commonly used to treat breast cancer, but also result in cardiac injury, and potentially detrimental effects to vascular and skeletal muscle. Preclinical evidence demonstrates that exercise and caloric restriction can independently reduce anthracycline-related injury to the heart as well as cancer progression, and may be promising short-term strategies prior to treatment administration. For women with breast cancer, a short-term strategy may be more feasible and appealing, as maintaining regular exercise training or a diet throughout chemotherapy can be challenging due to treatment symptoms and psychosocial distress. METHODS: The Caloric Restriction and Exercise protection from Anthracycline Toxic Effects (CREATE) study will determine whether acute application of these interventions shortly prior to receipt of each treatment can reduce anthracycline-related toxicity to the heart, aorta, and skeletal muscle. Fifty-six women with early stage breast cancer scheduled to receive anthracycline treatment will be randomly assigned to one of three groups who will: 1) perform a single, 30-min, vigorous-intensity, aerobic exercise session 24 h prior to each anthracycline treatment; 2) consume a prepared diet reduced to 50% of caloric needs for 48 h prior to each anthracycline treatment; or 3) receive usual cancer care. The primary outcome is magnetic resonance imaging (MRI) derived left ventricular ejection fraction reserve (peak exercise LVEF - resting LVEF) at the end of anthracycline treatment. Secondary outcomes include MRI-derived measures of cardiac, aortic and skeletal muscle structure and function, circulating NT-proBNP, cardiorespiratory fitness and treatment symptoms. Exploratory outcomes include quality of life, fatigue, tumor size (only in neoadjuvant patients), oxidative stress and antioxidants, as well as clinical cardiac or cancer outcomes. MRI, exercise tests, and questionnaires will be administered before, 2-3 weeks after the last anthracycline treatment, and one-year follow-up. DISCUSSION: The proposed lifestyle interventions are accessible, low cost, drug-free potential methods for mitigating anthracycline-related toxicity. Reduced toxic effects on the heart, aorta and muscle are very likely to translate to short and long-term cardiovascular health benefits, including enhanced resilience to the effects of subsequent cancer treatment (e.g., radiation, trastuzumab) aging, and infection. TRIAL REGISTRATION: ClinicalTrials.gov NCT03131024; 4/21/18.
Assuntos
Neoplasias da Mama/tratamento farmacológico , Restrição Calórica , Cardiotoxicidade/terapia , Terapia por Exercício , Adulto , Idoso , Antraciclinas/efeitos adversos , Neoplasias da Mama/complicações , Neoplasias da Mama/patologia , Cardiotoxicidade/patologia , Quimioterapia Adjuvante/efeitos adversos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/terapia , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Qualidade de Vida , Trastuzumab/efeitos adversosRESUMO
OBJECTIVE: To investigate the influence of length difference in left ventricular (LV) long axis between the apical four-chamber and two-chamber views on measurements of LV volumes and ejection fraction (EF). METHODS: Seven hundred consecutive cancer patients underwent contrast echocardiography from July 2010 to May 2014. All patients received the echocardiographic contrast agent Definity. Recordings of apical views were analyzed by a sonographer and then by a cardiologist. The end-diastolic and end-systolic LV volumes (EDV and ESV), and LV lengths as well as EF, were measured using the biplane Simpson's method. Inter-observer variability was assessed using relative mean error (RME) and Bland-Altman analysis. RESULTS: Six hundred ninety-two patients had contrast echocardiograms with complete endocardial definition. The LV length difference of the long axis measured by the cardiologist was ≤1 mm in 284 studies (41%), 2 mm in 146 studies (21%), 3 mm in 103 studies (15%), and ≥4 mm in 159 studies (23%). The limits of agreement (LOA) and RME increase with the increasing length difference. Compared to the groups with length difference <4 mm, the RME of the measurements of indexed EDV, indexed ESV, and EF was significantly greater in the group with length difference ≥4 mm (P < .05). CONCLUSION: These results highlight the need for reviewing the LV long axis length measurements in order to provide reproducible LV volumes and EF measurements and may be used as benchmarks for quality control. A length difference of ≤3 mm can be achieved in most of our patients and is associated with an excellent inter-observer agreement.
Assuntos
Antineoplásicos/efeitos adversos , Meios de Contraste , Ecocardiografia/métodos , Ventrículos do Coração/patologia , Aumento da Imagem/métodos , Disfunção Ventricular Esquerda/induzido quimicamente , Estudos de Coortes , Feminino , Fluorocarbonos , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Tamanho do Órgão , Estudos Prospectivos , Reprodutibilidade dos Testes , Volume Sistólico , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia , Função Ventricular EsquerdaRESUMO
PURPOSE: The purpose of this study was to add to what is known about patient satisfaction with nurse practitioner (NP) care, from the perspective of breast cancer patients who were followed by an NP. METHODS AND DESIGN: This study utilized Interpretive Description, a qualitative method aimed at making sense of the experiential aspects of health care and developing practical knowledge for improved care. Nine patients receiving NP-led care in an outpatient breast cancer clinic were interviewed about their perspectives on and experiences with NP-led care. Interview transcripts were thematically analyzed. FINDINGS: The NP role has long been regarded as a way of addressing many contemporary health system problems, although there continue to be barriers to the effective utilization of the role, including public and patient misunderstandings. This study revealed that, despite persistent traditional role understandings about health professionals, the patient participants appreciated the benefits of NP care and were highly satisfied with both the physical care and holistic support they received during the course of their treatment. CONCLUSIONS AND CLINICAL RELEVANCE: Today's healthcare system is characterized by accessibility issues, unmet patient need, workforce issues, and funding pressures. This research supports and enriches what is known about the benefits and usefulness of NP-provided care from the viewpoint of those receiving the care. The findings offer guidance to NPs in the clinical setting regarding patient needs and optimal care strategies.
Assuntos
Neoplasias da Mama/enfermagem , Profissionais de Enfermagem , Satisfação do Paciente/estatística & dados numéricos , Instituições de Assistência Ambulatorial/organização & administração , Canadá , Feminino , Humanos , Pesquisa em Avaliação de Enfermagem , Padrões de Prática em Enfermagem , Pesquisa QualitativaRESUMO
BACKGROUND: Cancer is the leading cause of premature death in Canada. In the last decade, important gains in cancer survival have been achieved by advances in adjuvant treatment. However, many oncologic treatments also result in cardiovascular "toxicity". Furthermore, cardiac risk factors such as hypertension, dyslipidemia, and diabetes mellitus are known to contribute to the progression of cardiac damage and clinical cardiotoxicity. As such, for many survivors, the risk of death from cardiac disease exceeds that of recurrent cancer. While provision of care by multidisciplinary teams has been shown to reduce mortality and hospitalizations among heart failure patients, the effect of assessments and interventions by multidisciplinary specialists in cancer patients receiving cardiotoxic chemotherapy regimens is currently unknown. Accordingly, we will examine the effect of a multi-disciplinary team interventions in the early assessment, identification and treatment of cardiovascular risk factors in cancer patients receiving adjuvant systemic therapy. Our main hypothesis is to determine if the incidence of LV dysfunction in cancer patients undergoing adjuvant therapy can be reduced through a multidisciplinary team approach. METHODS/DESIGN: This is a randomized study comparing intensive multidisciplinary team intervention to usual care in the prevention of LV remodeling in patients receiving anthracycline or trastuzumab-based chemotherapy. Main objectives include early detection strategies for cardiotoxicity using novel biomarkers that reflect myocardial injury, remodeling and/or dysfunction; early identification and intensive treatment of cardiovascular risk factors; and early intervention with supportive care strategies including nutritional and pharmacist counselling, exercise training and cardiology team support. Secondary objectives include correlation of novel biomarkers to clinical outcomes; correlation of multidisciplinary interventions to adverse clinical outcomes; relationship of multidisciplinary interventions and chemotherapy dose density; preservation of lean muscle mass; and patient reported outcomes (symptom intensity and quality of life). DISCUSSION: Cardiac toxicity as a result of cancer therapies is now recognized as a significant health problem of increasing prevalence. To our knowledge, TITAN will be the first randomized trial examining the utility of multidisciplinary team care in the prevention of cardiotoxicity. We expect our results to inform comprehensive and holistic care for patients at risk for negative cancer therapy mediated sequelae. TRIAL REGISTRATION: ClinicalTrials.gov, NCT01621659 Registration Date 4 June 2012.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Cardiopatias/etiologia , Cardiopatias/terapia , Neoplasias/complicações , Projetos de Pesquisa , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cardiotoxicidade , Quimioterapia Adjuvante , Gerenciamento Clínico , Cardiopatias/fisiopatologia , Humanos , Neoplasias/tratamento farmacológico , Equipe de Assistência ao Paciente , Qualidade de Vida , Disfunção Ventricular EsquerdaRESUMO
PURPOSE: Improvements in diagnosis and treatment mean that the long-term health of breast cancer survivors (BCS) is increasingly dictated by cardiovascular comorbidities. This is partly a consequence of exposure to cardiotoxic therapies, which result in cardiac dysfunction and decreased cardiorespiratory fitness (CRF). Exercise training (ExT) is a key therapeutic strategy for secondary prevention and increasing CRF in adults with established cardiovascular disease. Exercise-based cardio-oncology rehabilitation (CORE) has been proposed as an emerging strategy to address CRF and cardiac impairment in BCS. This review aims to (1) provide an overview of the impact of breast cancer therapy on CRF; (2) provide an up-to-date summary of the effects of ExT on CRF and cardiac function in BCS undergoing cardiotoxic therapy; and (3) discuss how traditional ExT approaches can be adapted for BCS undergoing therapy. REVIEW METHODS: A literature review was performed based on an intensive literature search for systematic reviews and meta-analyses, randomized and non-randomized controlled trials and single-arm trials investigating the impact of exercise training or cardiac rehabilitation on CRF and/or cardiac function in BCS who are undergoing or have completed cardiotoxic cancer therapy. SUMMARY: Overall, current evidence suggests that ExT induces clinically meaningful benefits for CRF in BCS during and after therapy. There is also emerging evidence that ExT can improve peak exercise measures of cardiac function; however, there is a need for further research to understand how to adapt these effective ExT approaches into clinical CORE-based settings.
Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Aptidão Cardiorrespiratória , Adulto , Humanos , Feminino , Revisões Sistemáticas como Assunto , Exercício Físico , Terapia por ExercícioRESUMO
BACKGROUND: Individuals living with chronic advanced cancer (CAC) often face distinct physical, functional, and cognitive issues. Their rehabilitation needs are not yet routinely met, warranting further CAC-specific rehabilitation-based research. Given the complexity of functional and symptom presentations, engagement of individuals living with CAC as partners in the research process is encouraged to better understand the lived perspective. Formal engagement requires both structured approaches and iterative processes. The aim was to co-design a conceptual framework to develop and integrate engagement strategies into rehabilitation research focused on CAC populations. METHODS: A multidisciplinary team of authors, including two individuals with lived experience, conducted an implementation-focused descriptive study to inform future research design, including: interviews and follow-up, review of current models and approaches, and development of a co-designed conceptual framework for engaging individuals with lived experience into CAC-specific rehabilitation research. RESULTS: Emergent themes include shared understanding, transparent appreciation, iterative processes and unique partnership needs. A definition, guiding principles and tools for engagement were identified. In consultation with individuals with lived experience, and application of the emergent themes in context, a conceptual framework to guide the engagement process was developed. CONCLUSION: A novel conceptual framework for engaging individuals with lived experience with CAC as partners in rehabilitation research is proposed to facilitate implementation-focused team-based approaches for this population.
Living with chronic advanced cancer (CAC) affects all parts of a person's life. Rehabilitation, such as physiotherapy, can be necessary. Healthcare data shows that rehabilitation needs of people with CAC are not yet being regularly met and that more research in this area is needed. Because CAC is complex and impacts each person differently, having people with CAC included as partners on the research team will likely help researchers better understand and explain rehabilitation needs of people with CAC.Our group of authors include different healthcare professionals, researchers, and two individuals with lived experience. Together, we carried out an implementation study and designed a framework to guide other researchers in including individuals living with CAC on research teams.We found that important themes for individuals with lived experience were: shared understanding, transparent appreciation, iterative processes (such as back and forth communication) and unique partnership needs.We titled the conceptual framework a "Co-designed Chronic ADVanced CANCer Rehabilitation" or "Co-ADVANCE" for short.
RESUMO
BACKGROUND & AIMS: Accurately estimating resting energy requirements is crucial for optimizing energy intake, particularly in the context of patients with varying energy needs, such as individuals with cancer. We sought to evaluate the agreement between resting energy expenditure (REE) predicted by 40 equations and that measured by reference methods in women undergoing active breast cancer treatment stage (I-IV) and post-completion (i.e., survivors). METHODS: Data from 4 studies were combined. REE values estimated from 40 predictive equations identified by a systematic search were compared with REE assessed by indirect calorimetry (IC) using a metabolic cart (MC-REE N = 46) or a whole-room indirect calorimeter (WRIC-REE N = 44). Agreement between methods was evaluated using Bland-Altman and Lin's concordance coefficient correlation (Lin's CCC). RESULTS: Ninety participants (24 % survivors, 61.1% had early-stage breast cancer I or II, mean age: 56.8 ± 11 years; body mass index: 28.7 ± 6.4 kg/m2) were included in this analysis. Mean MC-REE and WRIC-REE values were 1389 ± 199 kcal/day and 1506 ± 247 kcal/day, respectively. Limits of agreement were wide for all equations compared to both MC and WRIC (â¼300 kcal for both methods), including the most commonly used ones, such as Harris-Benedict and Mifflin ST. Jeor equations; none had a bias within ±10% of measured REE, and all had low agreement per Lin's CCC analysis (<0.90). The Korth equation exhibited the best performance against WRIC and the Lvingston-Kohlstadt equation against MC. Similar patterns of bias were observed between survivors and patients and between patients with stages I-III versus IV cancer. CONCLUSION: Most equations failed to accurately predict REE at the group level, and none were effective at the individual level. This inaccuracy has significant implications for women with or surviving breast cancer, who may experience weight gain, maintenance, or loss due to inaccurate energy needs estimations. Therefore, our research underscores the need for further efforts to improve REE estimation.
RESUMO
BACKGROUND: Urinary incontinence (UI), erectile dysfunction and cardiometabolic conditions are common after prostatectomy for prostate cancer (PCa). Although physical activity could improve overall survival and quality of survivorship, fear of UI can restrict participation in exercise. Individuals with PCa could benefit from therapeutic exercise programming to support continence recovery and cardiometabolic health. AIM: The main objective of this study is to determine the feasibility and the effects of a combined pelvic health rehabilitation and exercise fitness program on UI after prostatectomy. The combined exercise program will be delivered both in-person and virtually. METHODS: This study follows a modified Zelen, two-arm parallel randomized controlled trial design. A total of 106 individuals with PCa will be recruited before prostatectomy surgery. Participants will be randomized between two groups: one receiving usual care and one receiving a combined exercise fitness and intensive pelvic floor muscle training program. Exercise programming will begin 6-8 weeks after prostatectomy and will last 12 weeks. Outcomes include: the 24-h pad test (primary outcome for UI); physical fitness, metabolic indicators, and patient-reported outcomes on erectile function, self-efficacy, severity of cancer symptoms and quality of life. Important timepoints for assessments include before surgery (T0), after surgery (T1), after intervention (T3) and at one-year after surgery (T4). CONCLUSION: This study will inform the feasibility of offering comprehensive exercise programming that has the potential to positively impact urinary continence, erectile function and cardiometabolic health of individuals undergoing prostatectomy for prostate cancer. CLINICALTRIALS REGISTRATION NUMBER: NCT06072911.