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PURPOSE: Climate disasters and climate change have implications for healthcare globally. As the number and intensity of climate disasters increase, it is important to understand the effects on healthcare. We conducted a global survey of oncology healthcare providers to identify awareness, experiences, and educational needs related to climate change. METHODS: An existing climate and health survey was adapted to oncology. This IRB- approved, 30-item survey measured demographics, climate disaster awareness, effects on cancer care and educational needs. Healthcare professionals employed in oncology settings (practice, research, or academic) were eligible. The survey was disseminated via social media and professional organizations. Descriptive statistics were computed using SPSS. RESULTS: 154 responses from 26 countries were received from nurses (56%), physicians (19%), and other healthcare professionals (25%). Common climate change-related events impacting oncology care were extreme heat (63.8%) and heavy rains (52.2%). Respondents reported their workplace has a disaster plan for climate-related weather events (50.4%) or has taken steps to prepare for a climate-related weather event (48.5%). Respondents were aware that the planet has warmed significantly (98.7%), that healthcare contributes to greenhouse gas emissions (98.6%) and reported wanting to learn more about how climate change affects cancer care (88.3%). Preferred educational modalities include webinars (69%), e-learning (55%), journal articles (48.3%), conferences (46.3%) and podcasts (38.9%). CONCLUSIONS: This global survey is the first to identify the awareness, experiences, and educational needs of oncology healthcare professionals related to climate change and climate disasters. Healthcare providers are positioned to take leadership roles related to climate and health.
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Mudança Climática , Pessoal de Saúde , Oncologia , Humanos , Pessoal de Saúde/estatística & dados numéricos , Pessoal de Saúde/psicologia , Inquéritos e Questionários , Oncologia/estatística & dados numéricos , Masculino , Feminino , Desastres , Neoplasias/terapia , Adulto , Pessoa de Meia-Idade , Saúde Global , Planejamento em DesastresRESUMO
BACKGROUND: Champions are integral across research in cancer, yet studies exploring their roles are limited and have produced mixed results. The current review examines and synthesizes descriptions of how champions emerged and the types of activities they most often performed. By examining evidence from across the translational research continuum, this scoping review aims to characterize the role of champions and strategies that facilitate their involvement in the implementation of cancer care interventions in both clinical and community-based settings. METHODS: This scoping review was designed and implemented in compliance with PRISMA-ScR. The review focused on peer-reviewed articles in English-language journals. We searched five databases: PubMed (including MEDLINE), Scopus (including EMBASE), CINAHL, PsycINFO, and the Cochrane Library. Articles published from 1971 to 2022 were included. Two members of the team reviewed in duplicate each article and then a single member of the team extracted the data in Covidence, with a second member comparing the extraction to the original article. Qualitative and quantitative data were extracted and then synthesized. These data were used to summarize core champion activities and implementation strategies and to characterize barriers and facilitators to using champions in research. RESULTS: A total of 74 articles were included in the review. The qualitative synthesis highlighted facilitators and barriers to the effective use of champions. Facilitators included consideration of an individual's characteristics when identifying champions, time spent planning for the specific responsibilities of champions, working within a supportive environment, and identifying champions embedded in the target setting. Major barriers included constrained time, low self-efficacy among champions, inadequate training, high turnover rates of champions, and a lack of buy-in from organizational leadership toward the intervention. Champions also were mostly assigned their roles, had varied core activities, and used complementary strategies to empower their target populations. Champions' most frequent core activities include facilitation, outreach/promotion, and recruitment of participants into studies. CONCLUSIONS: Champions were used in research of many cancer types and often serve similar roles regardless of where they are located within the translational research process. Despite their critical role, evidence is lacking on the impact of champions specifically on outcomes of many of the research studies that include them. Future research is needed to understand the nuances of champion-driven approaches across diverse cancer care settings.
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Background: Supportive care to ensure optimal quality of life is an essential component of cancer care and symptom control across the lifespan. Ongoing advances in cancer treatment, increasing toxicity from many novel treatment regimes, and variations in access to care and cancer outcomes across the globe and resource settings present significant challenges for supportive care delivery. To date, no overarching framework has been developed to guide supportive care development worldwide. As an initial step of the Multinational Association of Supportive Care in Cancer (MASCC) Supportive Care 2030 Movement, we developed a targeted, unifying set of ambition statements to envision the future of supportive cancer care. Methods: From September 2022 until June 2023, we used a modified Delphi methodology to develop and attain consensus about ambition statements related to supportive cancer care. Leaders of MASCC Study Groups were invited to participate in an Expert Panel for the first two Delphi rounds (and a preliminary round to suggest potential ambition statements). Patient Advocates then examined and provided input regarding the ambition statements. Findings: Twenty-seven Expert Panelists and 11 Patient Advocates participated. Consensus was attained on 13 ambition statements, with two sub-statements. The ambition statements addressed global standards for guideline development and implementation, coordinated and individualized care, dedicated supportive oncology services, self-management, needs for screening and actions, patient education, behavioral support, financial impact minimization, comprehensive survivorship care, and timely palliative care, reflecting collaboration, coordination and team-based approach across all levels. Interpretation: This study is the first to develop shared ambitions for the future of supportive cancer care on a global level. These ambition statements can facilitate a coordinated, resource-stratified, and person-centered approach and inform research, education, clinical services, and policy efforts. Funding: This project received funding support from Prof Raymond Chan's NHMRC Investigator Grant (APP1194051).
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OBJECTIVE: Head and neck (HN) cancer comprises the neoplasms originating from the oral cavity, pharynx and larynx. We aimed at reviewing the available literature on the effect of smoking cessation on HN cancer risk. METHOD: We conducted a systematic search in Medline, PubMed and Embase to June 2022. We abstracted or calculated relative risks (RR) and 95% CIs of HN cancer after cessation of tobacco smoking (both former smoking status and duration of quitting) and combined them using random effects meta-analyses. Papers included were case-control or cohort studies available in the English language. Studies investigating smoking cessation after cancer diagnosis, case reports, intervention studies or animal studies were excluded. Quality and susceptibility to bias of each included study were evaluated using the Newcastle-Ottawa Scale. Publication bias was assessed using funnel plot and Egger's test. RESULTS: A total of 65 studies were included in the review, including 5 cohort and 60 case-control studies. The RR of HN cancer for former smokers compared with current smokers was 0.40 (95% CI 0.35 to 0.46). In an analysis by cancer site, the RR of oral cancer was 0.44 (95% CI 0.35 to 0.55), that of pharyngeal cancer 0.44 (95% CI 0.32 to 0.60) and that of laryngeal cancer 0.38 (95% CI 0.29 to 0.50). The dose-response meta-analysis was based on 37 studies. The RR per 10-year increase in smoking cessation was 0.47 (95% CI 0.43 to 0.52). CONCLUSIONS: The risk of HN cancer declines within the first 5 years of quitting smoking. Quitting smoking is an essential element of HN cancer prevention. TRIAL REGISTRATION NUMBER: The protocol has been deposited in the PROSPERO repository (CRD42022338262).
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Neoplasias de Cabeça e Pescoço , Abandono do Hábito de Fumar , Humanos , Neoplasias de Cabeça e Pescoço/etiologia , Fatores de RiscoRESUMO
BACKGROUND: The Nursing Science Precision Health (NSPH) Model has the potential to guide research on the development, testing, and targeting of interventions. PURPOSE: This scoping review examines the relationship between physical activity (PA) and cancer-related fatigue (CRF) within the context of the NSPH Model. METHODS: The Joanna Briggs Institute scoping review methodology and Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guided this review. We included randomized controlled trials in people with cancer that investigated PA interventions and measured change in CRF as an outcome. DISCUSSION: A total of 181 studies met the eligibility criteria. Over 20 different instruments were used to measure CRF. The most common PA interventions were strength training (48%), walking (36%), cycling (26%), and yoga (15%). A limited number of studies reported phenotypic characteristics (32/181, 17%) or biomarkers (31/181, 17%) associated with CRF. CONCLUSION: This scoping review identified the body of existing research exploring CRF and PA from a precision health perspective.
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Neoplasias , Medicina de Precisão , Humanos , Exercício Físico , Fadiga/etiologia , Fadiga/prevenção & controle , Neoplasias/complicações , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
OBJECTIVE: The aim of the study is to describe rates of hematuria and other lower urinary tract symptoms, including self-reported cancer rates, among veterans postburn pits emissions exposure during deployment to Iraq and Afghanistan. METHODS: US post-9/11 veterans with burn pits emissions exposure confirmed via DD214 forms in the Burn Pits360.org Registry were sent a modified survey. Data were deidentified and anonymously coded. RESULTS: Twenty-nine percent of the 155 respondents exposed to burn pits self-reported seeing blood in their urine. The average index score of our modified American Urological Association Symptom Index Survey was 12.25 (SD, 7.48). High rates of urinary frequency (84%) and urgency (76%) were self-reported. Bladder, kidney, or lung cancers were self-reported in 3.87%. CONCLUSIONS: US veterans exposed to burn pits are self-reporting hematuria and other lower urinary tract symptoms.
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Sintomas do Trato Urinário Inferior , Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Hematúria/epidemiologia , Hematúria/etiologia , Afeganistão , Iraque , Incineração , Guerra do Iraque 2003-2011 , Campanha Afegã de 2001- , Transtornos de Estresse Pós-Traumáticos/epidemiologiaRESUMO
PURPOSE: Climate disasters have devastating effects on communities and society that encompass all aspects of daily life, including healthcare. Patients with cancer are particularly vulnerable when disaster strikes. As the number and intensity of disasters increases, it is important to understand the effects across the cancer care continuum. This systematic review investigates the effect of climate disasters on patients, the oncology healthcare workforce, and healthcare systems. METHODS: A medical librarian conducted a literature search in PubMed, Embase, CINAHL, and Web of Science from January 1, 2016, through May 11, 2022. Eligible studies included any published report on a climate disaster globally reporting on patient-, oncology healthcare workforce-, or healthcare systems-level outcomes. Study quality was assessed, and findings were narratively synthesized, given the diversity of reported evidence. RESULTS: The literature search identified 3618 records, of which 46 publications were eligible for inclusion. The most frequent climate disaster was hurricanes (N = 27) followed by tsunami (N = 10). Eighteen publications were from disasters that occurred in the mainland USA with 13 from Japan and 12 from Puerto Rico. Patient-level outcomes included treatment interruptions and inability to communicate with the healthcare team. At the workforce level, findings included distressed clinicians caring for others when their own lives have been affected by a disaster along with lack of disaster preparedness training. Health systems reported closures or shifting services post-disaster and a need to have improved emergency response plans. CONCLUSION: Response to climate disasters necessitates a holistic approach at the patient, workforce, and health systems levels. Specifically, interventions should focus on mitigating interruptions in care for patients, advanced coordination and planning for workforce and health systems, and contingency planning for allocation of resources by health systems.
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Planejamento em Desastres , Desastres , Humanos , Atenção à Saúde , Continuidade da Assistência ao Paciente , Recursos HumanosRESUMO
BACKGROUND: Adoption of evidence remains slow, leading to variations in practices and quality of care. Examining evidence-based interventions implemented within oncology settings can guide knowledge translation efforts. OBJECTIVE: This integrative review aimed to (1) identify topics implemented for oncology-related evidence-based practice (EBP) change; (2) describe frameworks, guidelines, and implementation strategies used to guide change; and (3) evaluate project quality. METHODS: PubMed and CINAHL were searched to identify published practice change projects. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guidelines were followed. Fifty articles met the inclusion criteria. Data were extracted; content analysis was conducted. The Quality Improvement Minimum Quality Criteria Set guided quality assessment. RESULTS: Topics included infection control/prevention (n = 18), pain/palliative care (n = 13), psychosocial assessment (n = 11), and medication adherence (n = 8). Among the projects, Plan, Do, Study, Act (n = 8) and Lean Six Sigma (n = 6) frameworks were used most. Thirty-six projects identified guidelines that directed interventions. Multiple implementation strategies were reported in all articles with planning, education, and restructuring the most common. Reach, sustainability, and ability to be replicated were identified as quality gaps across projects. CONCLUSION: The EBP topics that emerged are consistent with the oncology nursing priorities, including facilitating integration of EBP into practice. The studies identified used national guidelines and implementation strategies to move evidence into practice. Heterogeneity in measurement made synthesis of findings difficult across studies, although individual studies showed improvement in patient outcomes. IMPLICATIONS FOR PRACTICE: Development of an interprofessional oncology consortium could facilitate a standardized approach to implementation of high-priority topics that target improved patient outcomes, harmonize measures, and accelerate translation of evidence into practice.
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Medicina Baseada em Evidências , Oncologia , HumanosRESUMO
PURPOSE: This evidence-based guideline intends to support patients, clinicians, and others regarding interventions and processes to support patient adherence to oral anticancer medications (OAMs). METHODOLOGIC APPROACH: A panel of healthcare professionals and patient representatives developed a clinical practice guideline to support patients taking OAMs. GRADE (Grading of Recommendations Assessment, Development, and Evaluation) methodology and criteria for trustworthy guidelines were followed. Risk of bias was assessed using the Cochrane Risk of Bias 2 tool. A quantitative or narrative synthesis of the evidence was completed. Certainty of the evidence was assessed using GRADE. FINDINGS: The panel agreed on recommendations and suggested an adherence risk assessment, education addressing adherence, ongoing assessment, proactive follow-up, coaching, and motivational interviewing in addition to usual care. The panel suggested the implementation of a structured OAM program. IMPLICATIONS FOR NURSING: As cancer treatment shifts from clinic to home settings, interventions and programs to support patients on OAMs are needed.
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Cooperação do Paciente , HumanosRESUMO
PROBLEM IDENTIFICATION: This systematic review compared the efficacy of interventions to usual care on adherence to oral anticancer regimens. LITERATURE SEARCH: Embase®, PubMed®, and CINAHL® were searched for eligible comparative studies published between January 2000 and May 2021. Outcomes of interest included adherence, cancer-related morbidity, quality of life, patient satisfaction, and other patient-specific outcomes. DATA EVALUATION: Reviewers assessed risk of bias using the Cochrane Risk of Bias 2 tool and Risk of Bias in Nonrandomized Studies of Interventions. Certainty of evidence was assessed using the GRADE framework. SYNTHESIS: Risk assessment, ongoing or periodic assessment, proactive follow-up, motivational interviewing, or structured programs may improve adherence. Education or coaching interventions may improve or have little to no effect on adherence. Technological interventions may improve adherence, but interactive compared to noninteractive technology may have little to no effect. IMPLICATIONS FOR RESEARCH: As more cancer treatments move to oral formulations, work remains to identify the most effective interventions to support people receiving oral anticancer regimens.
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Adesão à Medicação , Qualidade de Vida , HumanosRESUMO
PROBLEM IDENTIFICATION: An interprofessional approach is necessary to support the multifactorial process of patient adherence to oral anticancer medications (OAMs). This scoping review aims to identify structured OAM programs in published literature, identify components within studies, and propose a framework for institutions developing or maintaining OAM programs. LITERATURE SEARCH: Embase®, PubMed®, and CINAHL® databases were searched for studies published between January 2000 and April 2021. DATA EVALUATION: Two reviewers screened studies and extracted data. Characteristics and specific domains of the OAM programs were captured. Key components of the programs were identified, and a framework was created to guide program development. SYNTHESIS: Components identified among the 21 studies were education; counseling; follow-up; dedicated clinician contact; adverse event and toxicity monitoring; adherence monitoring; drug procurement, delivery, and supply; patient- and system-level cost reduction; information technology; and risk assessment. IMPLICATIONS FOR RESEARCH: Based on the findings, a framework for building and evaluating OAM adherence programs is proposed. Future studies should evaluate the reliability and validity of this framework because further testing may lead to the development of additional components.
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Antineoplásicos , Antineoplásicos/efeitos adversos , Humanos , Cooperação do Paciente , Reprodutibilidade dos TestesRESUMO
Telehealth use has increased in the setting of the COVID-19 pandemic. However, there are disparities in telehealth use based on age, income, race/ethnicity, low health, digital literacy, and limited English proficiency. There are multilevel barriers to telehealth use at the patient, health systems, telehealth portal, and policy levels. To ensure equity in telehealth services and to leverage these services to maximize the reach of health care services, concerted efforts are needed to design telehealth tools and workflows. It should include reimbursement for staff training, patient education, and technical support needed for telehealth use. Furthermore, ongoing monitoring and responsive modifications in the use of telehealth services are needed to promote telehealth equity.
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COVID-19 , Telemedicina , Etnicidade , Humanos , Pandemias , SARS-CoV-2RESUMO
Despite the high incidence of constipation in people with cancer, there is little research on management strategies for opioid-induced constipation (OIC). This project used the Plan-Do-Study-Act model to examine implementation of the Oncology Nursing Society GuidelinesTM to improve constipation management in patients with cancer. Nurse champions at four sites identified practice gaps, including providing education on OIC for patients who are new to opioids and increasing follow-up assessment. This project demonstrates that multisite, collaborative projects are feasible and may enhance patient quality of life and decrease anticipated complications.
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Neoplasias , Constipação Induzida por Opioides , Analgésicos Opioides/efeitos adversos , Constipação Intestinal/tratamento farmacológico , Constipação Intestinal/terapia , Humanos , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Qualidade de VidaRESUMO
BACKGROUND: Evidence-based practice (EBP) is a clinical decision-making approach that improves quality and outcomes in health care but is not yet standard in clinical settings. OBJECTIVES: The purpose of this study was to determine EBP beliefs, knowledge, implementation strategy self-efficacy, and competencies among a national sample of oncology nurses. METHODS: Oncology nurses completed an online survey of EBP attributes and open-ended questions. Analyses were conducted on data collected from 893 participants from a range of healthcare organizations across a diverse geographic sample of the United States. FINDINGS: Respondents rated themselves competent to question clinical practice to improve quality care. Oncology nurses reported competency to question clinical practice but deficits in EBP knowledge and skills.
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Competência Clínica , Enfermagem Oncológica , Atitude do Pessoal de Saúde , Enfermagem Baseada em Evidências , Prática Clínica Baseada em Evidências , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Qualidade da Assistência à Saúde , Inquéritos e Questionários , Estados UnidosRESUMO
Approximately 50%-70% of patients with cancer will receive radiation therapy. Radiodermatitis is one of the most common side effects of radiation therapy, with as many as 95% of patients experiencing some degree of skin change. Radiodermatitis can cause pain, itching, and burning and potentially has a significant impact on a patient's quality of life. If radiodermatitis becomes severe, it can cause treatment interruption. The prevalence of radiodermatitis coupled with the effect this side effect can have on quality of life prompts the need for evidence-based recommendations for management.
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Neoplasias , Radiodermite , Humanos , Neoplasias/complicações , Neoplasias/radioterapia , Qualidade de Vida , Radiodermite/diagnóstico , Radiodermite/etiologia , PeleRESUMO
PROBLEM IDENTIFICATION: A systematic review and meta-analysis was conducted to inform the development of national clinical practice guidelines on the management of cancer constipation. LITERATURE SEARCH: PubMed®, Wiley Cochrane Library, and CINAHL® were searched for studies published from May 2009 to May 2019. DATA EVALUATION: Two investigators independently reviewed and extracted data from eligible studies. The Cochrane Collaboration risk-of-bias tool was used, and the GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach was used to assess the certainty of the evidence. SYNTHESIS: For patients with cancer and opioid-induced constipation, moderate benefit was found for osmotic or stimulant laxatives; small benefit was found for methylnaltrexone, naldemedine, and electroacupuncture. For patients with cancer and non-opioid-related constipation, moderate benefit was found for naloxegol, prucalopride, lubiprostone, and linaclotide; trivial benefit was found for acupuncture. IMPLICATIONS FOR PRACTICE: Effective strategies for managing opioid-induced and non-opioid-related constipation in patients with cancer include lifestyle, pharmacologic, and complementary approaches. SUPPLEMENTAL MATERIAL CAN BE FOUND AT HTTPS: //bit.ly/3c4yewT.
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Analgésicos Opioides , Neoplasias , Analgésicos Opioides/efeitos adversos , Constipação Intestinal/induzido quimicamente , Constipação Intestinal/tratamento farmacológico , Fármacos Gastrointestinais/uso terapêutico , Humanos , Neoplasias/complicações , Neoplasias/tratamento farmacológicoRESUMO
PROBLEM IDENTIFICATION: A systematic review and meta-analysis was conducted to inform the development of guidelines on the management of radiodermatitis among patients with cancer. LITERATURE SEARCH: The authors updated a systematic review to include available literature published through September 30, 2019. DATA EVALUATION: Two investigators assessed risk of bias using the Cochrane Collaboration risk-of-bias tool and certainty of the evidence using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach. SYNTHESIS: The use of deodorant/antiperspirant had no effect on development of radiodermatitis. Aloe vera and emu oil were equivalent or less effective than standard care. Oral curcumin had a minimal beneficial effect. Nonsteroidal topical interventions had a minimal beneficial effect on the development of moist desquamation and relief of itching while causing a small increase for grade 2 radiodermatitis. Topical calendula increased risk for the development of radiodermatitis. Topical steroids and dressings each showed benefits to minimize the development of radiodermatitis and moist desquamation while lowering rates of patient-reported symptoms, such as pain and pruritus. IMPLICATIONS FOR RESEARCH: Symptom management strategies for radiodermatitis among patients with cancer that are likely to be effective include topical nonsteroidals, topical steroids, and dressings. SUPPLEMENTAL MATERIAL CAN BE FOUND AT HTTPS: //bit.ly/2FWj3Kp.
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Neoplasias , Radiodermite , Bandagens , Humanos , Neoplasias/complicações , Neoplasias/radioterapia , Radiodermite/tratamento farmacológico , Radiodermite/etiologiaRESUMO
PURPOSE: Radiodermatitis is a side effect of radiation therapy. Evidence-based interventions to minimize severity or delay progression are important for clinical care. This guideline intends to support individuals with cancer, clinicians, and others in decisions regarding radiodermatitis treatment. METHODOLOGIC APPROACH: A panel of healthcare professionals with patient representation was convened to develop a national clinical practice guideline for the management of radiodermatitis. GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology and the National Academies of Sciences, Engineering, and Medicine criteria for trustworthy guidelines were followed. The Cochrane Collaboration risk-of-bias tool was used, and certainty of the evidence was assessed using the GRADE approach. A quantitative and narrative synthesis of the evidence was completed. FINDINGS: The panel agreed on eight recommendations and made a conditional recommendation for deodorant/antiperspirant. Aloe vera and oral curcumin had knowledge gaps and were recommended only in the context of a clinical trial. The panel suggested against emu oil, calendula, and nonsteroidal interventions. IMPLICATIONS FOR NURSING: This guideline summarizes evidence-based interventions for the management of radiodermatitis to guide clinical care. SUPPLEMENTARY MATERIAL CAN BE FOUND AT HTTPS: //bit.ly/2GEwJtT.
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Neoplasias , Radiodermite , Humanos , Radiodermite/tratamento farmacológico , Radiodermite/etiologiaRESUMO
PURPOSE: This evidence-based guideline intends to support clinicians, patients, and others in decisions regarding the treatment of constipation in patients with cancer. METHODOLOGIC APPROACH: An interprofessional panel of healthcare professionals with patient representation prioritized clinical questions and patient outcomes for the management of cancer-related constipation. Systematic reviews of the literature were conducted. The GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach was used to assess the evidence and make recommendations. FINDINGS: The panel agreed on 13 recommendations for the management of opioid-induced and non-opioid-related constipation in patients with cancer. IMPLICATIONS FOR NURSING: The panel conditionally recommended a bowel regimen in addition to lifestyle education as first-line treatment for constipation. For patients starting opioids, the panel suggests a bowel regimen as prophylaxis. Pharmaceutical interventions are available and recommended if a bowel regimen has failed. Acupuncture and electroacupuncture for non-opioid-related constipation are recommended in the context of a clinical trial. SUPPLEMENTARY MATERIAL CAN BE FOUND AT HTTPS: //bit.ly/30y29sI.
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Analgésicos Opioides , Neoplasias , Analgésicos Opioides/efeitos adversos , Constipação Intestinal/induzido quimicamente , Constipação Intestinal/tratamento farmacológico , Humanos , Neoplasias/complicações , Neoplasias/tratamento farmacológicoRESUMO
The immune checkpoints associated with the CTLA-4 and PD-1 pathways are critical modulators of immune activation. These pathways dampen the immune response by providing brakes on activated T cells, thereby ensuring more uniform and controlled immune reactions and avoiding immune hyper-responsiveness and autoimmunity. Cancer cells often exploit these regulatory controls through a variety of immune subversion mechanisms, which facilitate immune escape and tumor survival. Immune checkpoint inhibitors (ICI) effectively block negative regulatory signals, thereby augmenting immune attack and tumor killing. This process is a double-edged sword in which release of regulatory controls is felt to be responsible for both the therapeutic efficacy of ICI therapy and the driver of immune-related adverse events (IrAEs). These adverse immune reactions are common, typically low-grade and may affect virtually every organ system. In the early clinical trials, lung IrAEs were rarely described. However, with ever-expanding clinical applications and more complex ICI-containing regimens, lung events, in particular, pneumonitis, have become increasingly recognized. ICI-related lung injury is clinically distinct from other types of lung toxicity and may lead to death in advanced stage disease. Thus, knowledge regarding the key characteristics and optimal treatment of lung-IrAEs is critical to good outcomes. This review provides an overview of lung-IrAEs, including risk factors and epidemiology, as well as clinical, radiologic, and histopathologic features of ICI-related lung injury. Management principles for ICI-related lung injury, including current consensus on steroid refractory pneumonitis and the use of other immune modulating agents in this setting are also highlighted.