Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 79
Filtrar
1.
J Child Health Care ; : 13674935241258515, 2024 Jun 04.
Artigo em Inglês | MEDLINE | ID: mdl-38832575

RESUMO

Despite development of healthcare charters supporting Article 12 of The United Nations Convention on the Rights of the Child, children and young people remain largely silenced in discussions about their healthcare. This article is based on the premise that children and young people should be able to exercise their right to express their views and be heard in all matters that affect their lives. This study examined children's and young people's experiences of expressing their views and having them heard in an Australian healthcare context. Using child-centred inquiry and 'draw, write, and tell' methods, data were collected from 20 children and young people. Five factors that supported children and young people to express their views and have their views heard were identified: time, relationships with health professionals, communication, teamwork, and family support. By paying attention to these factors, clinicians and others in health settings can better facilitate child-centred practices and support children and young people to express their views and have those views heard.

2.
J Pediatr Psychol ; 49(6): 429-441, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38598510

RESUMO

OBJECTIVE: To evaluate the efficacy and costs of a brief, group-delivered parenting intervention for families of children with eczema. METHODS: A randomized controlled trial design was used. Families attending the Queensland Children's Hospital and from the community (n = 257) were assessed for eligibility (child 2-10 years, diagnosed with eczema, prescribed topical corticosteroids). Families who consented to participate (N = 59) were assessed at baseline for clinician-rated eczema severity, parent-reported eczema symptom severity, and electronically-monitored topical corticosteroid adherence (primary outcomes); and parenting behavior, parents' self-efficacy and task performance when managing eczema, eczema-related child behavior problems, and child and parent quality of life (secondary outcomes). Families were randomized (1:1, unblinded) to intervention (n = 31) or care-as-usual (n = 28). The intervention comprised two, 2-hr Healthy Living Triple P group sessions (face-to-face/online) and 28 intervention families attended one/both sessions. All families were offered standardized eczema education. Families were reassessed at 4-weeks post-intervention and 6-month follow-up, with clinician-raters blinded to condition. Costs of intervention delivery were estimated. RESULTS: Multilevel modeling across assessment timepoints showed significant intervention effects for ineffective parenting (d = .60), self-efficacy (d = .74), task performance (d = .81), and confidence with managing eczema-related child behavior (d = .63), but not disease/symptom severity, treatment adherence or quality of life. Mean cost per participating family with parenting behavior (clinically) improved was $159. CONCLUSIONS: Healthy Living Triple P is effective in reducing ineffective parenting practices and improving parents' self-efficacy and task performance when managing children's eczema and eczema-related behavior difficulties. There was no effect on disease/symptom severity, treatment adherence, or quality of life. CLINICAL TRIAL REGISTRATION: ACTRN12618001332213.


Assuntos
Eczema , Poder Familiar , Qualidade de Vida , Humanos , Eczema/terapia , Eczema/psicologia , Feminino , Masculino , Criança , Poder Familiar/psicologia , Pré-Escolar , Qualidade de Vida/psicologia , Adulto , Pais/psicologia , Autoeficácia , Índice de Gravidade de Doença , Resultado do Tratamento
3.
J Clin Nurs ; 33(7): 2662-2673, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38366766

RESUMO

AIM: To determine the association between nurse and institutional characteristics and perceived professional nurse knowledge and self-efficacy of reporting child abuse and neglect. DESIGN: A sample of N = 166 nurses were recruited to respond to the Reporting of Suspected Child Abuse and Neglect (RSCAN) survey. METHODS: A multiple linear regression examined whether nurse characteristics and institutional characteristics were associated with the two RSCAN survey domain scores. RESULTS: Perceived knowledge of a workplace child abuse and neglect protocol was associated with the knowledge subscale. Education and child abuse and neglect expertise were significant predictors of the self-efficacy subscale. Nurses with a master's or higher degree and those who identified as being either forensic, paediatric or Emergency Department nurses, had less perceived institutional barriers to self-efficacy of reporting child abuse and neglect. CONCLUSION: This study provides a preliminary insight into the institutional barriers and facilitators of nurses as child abuse and neglect mandated reporters. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: To encourage innovative education and collaborations to support nurses as fully informed child abuse and neglect mandated reporters. IMPACT: This research identifies the gaps and facilitators of nurses as child abuse and neglect mandated reporters to inform healthcare professionals and academic institutions on the importance of nurse education and experience in nurse knowledge and self-efficacy in reporting suspected child abuse and neglect. REPORTING METHODS: The authors of this study have adhered to relevant EQUATOR guidelines: STROBE. PATIENT OR PUBLIC CONTRIBUTION: There is no patient or public contribution as the study only looked at nurses.


Assuntos
Maus-Tratos Infantis , Autoeficácia , Humanos , Maus-Tratos Infantis/diagnóstico , Feminino , Adulto , Masculino , Criança , Inquéritos e Questionários , Notificação de Abuso , Pessoa de Meia-Idade , Competência Clínica/normas , Competência Clínica/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Recursos Humanos de Enfermagem Hospitalar/psicologia
4.
J Clin Nurs ; 33(4): 1506-1519, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38041392

RESUMO

AIM: To gain an understanding of children's experiences of expressing their views and having them heard in Australian healthcare settings. DESIGN: Child-centred qualitative research. A deductive qualitative content analysis was undertaken. METHODS: Data were collected from 20 Australian children and young people between the ages of 7 and 18 years old using the 'draw, write and tell' method. RESULTS: Children's experiences of 'space' and 'voice', and therefore the opportunity to express their views in health care were, in the main, positive. At the same time, their experiences of 'audience' and 'influence', the situations in which those views are given due weight, were overwhelmingly described as negative. CONCLUSION: Australian paediatric health services appear to have responded to calls to provide children with the opportunity to express their views and thus are delivering on the elements of 'space' and 'voice', whereas the realisation of 'audience' and 'influence' has some way to go. Due weight is not always given to children's views. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: The Lundy model can be used to facilitate a better understanding of the concept of voice, and the responsibility of health organisations in implementing the rights of children and young people, as articulated in Article 12. IMPACT: Children and young people have a right to express their views and have them heard in health care, but their experiences in Australian health care are unknown. While children's experiences of expressing their views in health care were mostly positive, their views are not always taken seriously or given due weight. This research impacts child health professionals in Australia and internationally. REPORTING METHOD: The study is reported using the Standards for Reporting Qualitative Research (SRQR). PATIENT OR PUBLIC CONTRIBUTION: Members of the Youth Advisory Council of two tertiary children's hospitals were consulted and invited to become members of the research team.


Assuntos
Atenção à Saúde , Redação , Adolescente , Criança , Humanos , Austrália , Pesquisa Qualitativa
5.
J Pediatr Nurs ; 73: e319-e326, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37863784

RESUMO

PURPOSE: In the United States (US), nurses have a mandated duty to report child abuse and neglect (CAN). Despite comprising the highest proportion of the US healthcare workforce, limited research has explored the institutional barriers they face in reporting suspected CAN. Furthermore, there is no existing valid and reliable measure of reporting relevant to US. The purpose of this research is to develop and psychometrically evaluate a scale to measure nurse knowledge and self-efficacy as CAN mandated reporters. DESIGN AND METHODS: The Reporting Suspected Child Abuse and Neglect (RSCAN) tool was developed from two existing international tools to examine institutional barriers and facilitators to US nurses' professional knowledge and reporting of CAN. A convenience sample of one hundred and sixty-six US nurses primarily from the Pacific Northwest responded to an online survey. An exploratory factor analysis (EFA) and Cronbach's α were used to examine validity and internal consistency, respectively, of an initial 16-item scale. RESULTS: A two-factor model consisting of eight items indicated good model fit (CFI = 0.986, RMSEA = 0.049, and SRMR = 0.028) and was internally consistent (Cronbach's α = 0.822). CONCLUSION: RSCAN is the first US instrument to reliably measure nurses' professional knowledge and self-efficacy of reporting suspected CAN. PRACTICE IMPLICATIONS: Future research can build upon these findings to recognize and support nurses in their mandated role to report CAN.


Assuntos
Maus-Tratos Infantis , Enfermeiras e Enfermeiros , Humanos , Estados Unidos , Criança , Psicometria , Competência Clínica , Maus-Tratos Infantis/diagnóstico , Notificação de Abuso , Inquéritos e Questionários , Reprodutibilidade dos Testes
6.
Artigo em Inglês | MEDLINE | ID: mdl-37569013

RESUMO

Family support is offered to Australian parents of young children using a mix of targeted and universal child and family health services including nurse-home-visiting programmes. These rely on the voluntary engagement of families. In this study, the capacity to engage and retain families, including those at risk of becoming involved with child protection services, was examined. The broad objective was to identify nursing practices used at the interface of health and child protection services and to articulate those practices. Child and Family Health Nurses (CFHN) (n = 129) participated in a pragmatic, multilevel mixed-methods study. A questionnaire was used to identify nursing practices in the first phase of this study followed by focus groups in the second phase to describe these practices in more detail. Three practice themes were identified and described: enrolment, retention and conclusion of the nurse-family relationship. Universal child and family health services feature flexible, advanced, and multidimensional family support services including child protection practices. This paper focuses on practices employed by nurses to engage and retain families where child protection concerns are identified.

7.
Pediatr Qual Saf ; 8(1): e622, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36601630

RESUMO

The American Academy of Pediatrics recommends premedication for all nonemergent neonatal intubations, yet there remains significant variation in this practice nationally. We aimed to standardize our unit's premedication practices for improved intubation success and reduced adverse events. Methods: The study workgroup developed educational material and protocol content. Process measures included premedication use, education, and audit form completion. Primary (success on first intubation attempt and adverse event rates) and secondary (trainee success) study outcomes are displayed using statistical process control charts and pre-post cohort comparisons. Results: Forty-seven percent (97/206) of nurses completed educational intervention before protocol release, with an additional 20% (42/206) following a staff reminder. Two hundred sixteen (216) patients were intubated per protocol with 81% (174/216) audit completion. Compared with baseline (n = 158), intubation attempts decreased from 2 (IQR, 1-2) to 1 (IQR, 1-2) (P = 0.03), and success on the first attempt increased from 40% (63/158) to 57% (124/216) (P < 0.01), with a notable improvement in trainee success from less than 1% (1/40) to 43% (31/72) (P < 0.01). The rate of severe and rare adverse events remained stable; however, there was a rise in nonsevere events from 30% (48/158) to 45% (98/216). The tachycardia rate increased with atropine use. There was no change in chest wall rigidity, number of infants unable to extubate following surfactant, or decompensation awaiting medications. Conclusions: Standardizing procedural care delivery reduced intubation attempts and increased the attempt success rate. However, this was accompanied by an increase in the rate of nonsevere adverse events.

8.
J Child Health Care ; 27(2): 279-288, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-31470733

RESUMO

The principle that children and young people are capable of forming their own views, have the right to express those views, and are entitled to have those views taken seriously was introduced by the United Nations Convention on the Rights of the Child (UNCRC) in 1989. The implications for the delivery of healthcare are clear; however, children and young people continue to experience difficulty in having their views heard and taken seriously during healthcare encounters and the effectiveness of the UNCRC, in particular Article 12 appears to be limited. This article will discuss how, 30 years on, significant barriers continue to impede the full implementation of Article 12. In recognition of the limited awareness of its scope or even existence by health professionals working with children, a framework that can facilitate a better understanding of the concept of voice, and articulate healthcare organisations' full responsibilities when it comes to Article 12, is presented.


Assuntos
Atenção à Saúde , Nações Unidas , Criança , Humanos , Adolescente
9.
Artigo em Inglês | MEDLINE | ID: mdl-35564775

RESUMO

The aim of this paper is to describe the development of a model of care to embed cultural safety for Aboriginal children into paediatric hospital settings. The Daalbirrwirr Gamambigu (pronounced "Dahl-beer-weer gum-um-be-goo" in the Gumbaynggirr language means 'safe children') model encompasses child protection responses at clinical, managerial and organisational levels of health services. A review of scholarly articles and grey literature followed by qualitative interviews with Aboriginal health professionals formed the evidence base for the model, which then underwent rounds of consultation for cultural suitability and clinical utility. Culturally appropriate communication with children and their families using clinical yarning and a culturally adapted version of ISBAR (a mnemonic for Identify, Situation, Background, Assessment and Recommendation) for interprofessional communication is recommended. The model guides the development of a critical consciousness about cultural safety in health care settings, and privileges the cultural voices of many diverse Aboriginal peoples. When adapted appropriately for local clinical and cultural contexts, it will contribute to a patient journey experience of respect, dignity and empowerment.


Assuntos
Serviços de Saúde do Indígena , Austrália , Criança , Competência Cultural , Hospitais , Humanos , Povos Indígenas , Havaiano Nativo ou Outro Ilhéu do Pacífico
10.
Technol Cult ; 62(3): 709-740, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34421055

RESUMO

Historian of technology Gabrielle Hecht once described technopolitics as the strategic pursuit of political goals through technology's design and use. The fire alarm telegraph, hailed by contemporaries as revolutionary technology in the nineteenth century, offers detailed insight into the technopolitics of risk, a yet uncharted territory. Unlike most histories of risk that do not analyze the design and use of risk technologies, this study unpacks how such technologies embody norms and structure governance. Virtually unknown to historians-yet central to urban risk management-fire-alarm technology emerged as a material contract between authoritarianism and liberalism in the nineteenth century. This article demonstrates how the design of the fire alarm telegraph allowed Prussian authorities and urban liberals to propagate their concept of risk in the German city of Frankfurt. The technology facilitated their cooperation in urban governance and thereby helped to solve conflict between competing national and local interests.


Assuntos
Neoplasias da Mama , Autoritarismo , Neoplasias da Mama/diagnóstico por imagem , Diagnóstico por Imagem , Feminino , Humanos , Inuíte , Tecnologia
11.
Can Bull Med Hist ; 38(1): 128-176, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33836137

RESUMO

In recent years, self-sampling has emerged as a compelling way of increasing cervical cancer screening rates within First Nations, Inuit and Métis communities. By allowing women to take their own samples in private, when and where they are most comfortable, home testing kits have been framed as a new, unequivocally feminist technology, and a panacea in Indigenous health. But are these techniques really as ethical and empowering as they have been made out to be? To answer this question, this article traces the history of the uptake and use of cervical cancer screening technologies in Canada. By tracing the mechanics and motivations of two state-sponsored cervical cancer screening studies carried out by Canada's Department of Indian Health Services during the mid to late twentieth century, this piece explores the settler-colonial roots of cancer surveillance, and shows how the implementation of both Pap-testing and DIY forms of screening within Indigenous communities has, at least historically, been more about enacting biopolitical regimes than promoting feminist ideals or improving health outcomes.


Assuntos
Colonialismo/história , Detecção Precoce de Câncer/história , Neoplasias do Colo do Útero/diagnóstico , Canadá , Detecção Precoce de Câncer/instrumentação , Feminino , História do Século XX , História do Século XXI , Humanos
13.
Front Oncol ; 10: 628, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32391281

RESUMO

Radiotherapy remains an important treatment modality in nearly two thirds of all cancers, including the primary curative or palliative treatment of breast cancer. Unfortunately, largely due to tumor heterogeneity, tumor radiotherapy response rates can vary significantly, even between patients diagnosed with the same tumor type. Although in recent years significant technological advances have been made in the way radiation can be precisely delivered to tumors, it is proving more difficult to personalize radiotherapy regimens based on cancer biology. Biomarkers that provide prognostic or predictive information regarding a tumor's intrinsic radiosensitivity or its response to treatment could prove valuable in helping to personalize radiation dosing, enabling clinicians to make decisions between different treatment options whilst avoiding radiation-induced toxicity in patients unlikely to gain therapeutic benefit. Studies have investigated numerous ways in which both patient and tumor radiosensitivities can be assessed. Tumor molecular profiling has been used to develop radiosensitivity gene signatures, while the assessment of specific intracellular or secreted proteins, including circulating tumor cells, exosomes and DNA, has been performed to identify prognostic or predictive biomarkers of radiation response. Finally, the investigation of biomarkers related to radiation-induced toxicity could provide another means by which radiotherapy could become personalized. In this review, we discuss studies that have used these methods to identify or develop prognostic/predictive signatures of radiosensitivity, and how such assays could be used in the future as a means of providing personalized radiotherapy.

14.
Nurse Res ; 28(1): 42-49, 2020 03 18.
Artigo em Inglês | MEDLINE | ID: mdl-32052613

RESUMO

BACKGROUND: Few valid and reliable measures of professional self-efficacy and its influence on reporting child abuse and neglect (CAN) are available. AIM: To test the psychometric properties of the Child Abuse and Neglect Reporting Self-Efficacy (CANRSE) (English) questionnaire. DISCUSSION: The Psychometric Grading Framework graded the strength of the psychometric properties of CANRSE (English) as 'good'. CANRSE can be measured using this tool, having been tested with a cohort of Australian health professionals. CANRSE can be used in Australian healthcare settings and will benefit health disciplines by examining the influence of self-efficacy on CAN reporting in clinical practice and research. CONCLUSION: The psychometric properties of CANRSE (English) provide evidence to support the assertion that it is a reliable instrument to measure self-efficacy in reporting CAN cases. IMPLICATIONS FOR PRACTICE: The validity and reliability of CANRSE (English) have been established. Future research should focus on larger studies testing a shorter version of the tool.


Assuntos
Maus-Tratos Infantis , Criança , Humanos , Psicometria , Reprodutibilidade dos Testes , Austrália , Inquéritos e Questionários
15.
Sci Context ; 33(3): 195-225, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-34096493

RESUMO

In August of 1977, Australian pathologist David W. Buntine delivered a presentation at the Annual Meeting of the Royal College of Pathologists of Australia in Melbourne, Victoria. In this presentation, he used the diagnostic category of "Eskimoma," to describe a unique set of salivary gland tumors he had observed over the past five years within Winnipeg's Health Sciences Center. Only found amongst Inuit patients, these tumors were said to have unique histological, clinical, and epidemiological features and were unlike any other disease category that had ever been encountered before. To understand where this nosological category came from, and its long-term impact, this paper traces the historical trajectory of the "Eskimoma." In addition to discussing the methods and infrastructures that were essential to making the idea of Inuit cancer "visible," to the pathologist, the epidemiologist, and to society at large, this paper discusses how Inuit tissue samples obtained, stored, and analyzed in Winnipeg, Manitoba, came to be codified into a new, racially based disease category - one that has guided Canadian and international understandings of circumpolar cancer trends and shaped northern healthcare service delivery for the past sixty years.


Assuntos
Inuíte , Neoplasias , Canadá , Geografia , Humanos , Masculino , Neoplasias/epidemiologia , Vitória
16.
J Child Health Care ; 24(4): 589-602, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-31615268

RESUMO

Evaluation of training was conducted for a paediatric hospital-in-the-home service in Sydney, Australia. Community nurses with no paediatric training or experience were employed and undertook a training program. The aim was to assess the degree to which the training had prepared them to care for children and families in their homes. A mixed-methods design was employed. Overall, the following aspects of the training were well received by the community nurses: paediatric resuscitation, growth and development, clinical deterioration and child protection. Each topic provided basic knowledge and skills in the speciality. The participating nurses generally reached a 'competent' level of practice as defined by Benner (2000). Further training and development is recommended. Where paediatric nursing practice is isolated from acute paediatrics services, opportunities must be provided to improve safe levels of practice for children of all ages.


Assuntos
Família/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Serviços de Assistência Domiciliar/normas , Enfermagem Pediátrica/educação , Austrália , Criança , Humanos , Satisfação do Paciente
17.
J Interpers Violence ; 35(21-22): 4216-4238, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-29294792

RESUMO

Ongoing fiscal stability has enabled the National Assembly in Vietnam to turn its attention to improving the health and well-being of women and children. Training pediatric health care professionals in the recognition and response to child abuse presentations in the emergency setting has the potential to improve outcomes for the disproportionate number of vulnerable children presenting to the emergency setting with nonaccidental injuries. This study explored the training needs and expectations of the staff preparing to undertake such a clinical training program. This qualitative study is based on semistructured interviews with 16 clinicians from the emergency setting of a leading pediatric hospital in Vietnam. Interview questions focused on current practice in recognizing and responding to child abuse and neglect presentations, the level of training and experience of participants, and subjective reports of confidence in recognizing abuse. Interviews were conducted in English and Vietnamese, with check-translation of transcripts performed by an independent translator. A culture of collegiality and innovative workplace practices was revealed. Analysis revealed two overarching themes that were related to the need for evidence, forensic analysis, respecting families, and consultation. Despite participant confidence in recognizing and reporting child abuse and neglect presentations, knowledge deficits were found. This article presents a critical analysis of the context within which the first evidence-based clinical training program of its kind in Vietnam was developed and implemented in a pediatric children's hospital. Clinicians felt a strong moral obligation to protect children from further harm, however encountered a number of barriers inhibiting this process. Findings significantly shaped the Safe Children Vietnam training program and will also contribute to the development of protocols and improvement of community support services at the study site.


Assuntos
Maus-Tratos Infantis , Violência Doméstica , Povo Asiático , Criança , Maus-Tratos Infantis/diagnóstico , Serviço Hospitalar de Emergência , Feminino , Hospitais , Humanos , Vietnã
18.
Sci Rep ; 9(1): 19076, 2019 12 13.
Artigo em Inglês | MEDLINE | ID: mdl-31836808

RESUMO

Neuroendocrine prostate cancer (NEPC) is thought to arise as prostate adenocarcinoma cells transdifferentiate into neuroendocrine (NE) cells to escape potent anti-androgen therapies however, the exact molecular events accompanying NE transdifferentiation and their plasticity remain poorly defined. Cell fate regulator ASCL1/hASH1's expression was markedly induced in androgen deprived (AD) LNCaP cells and prominent nuclear localisation accompanied acquisition of the NE-like morphology and expression of NE markers (NSE). By contrast, androgen-insensitive PC3 and DU145 cells displayed clear nuclear hASH1 localisation under control conditions that was unchanged by AD, suggesting AR signalling negatively regulated hASH1 expression and localisation. Synthetic androgen (R1881) prevented NE transdifferentiation of AD LNCaP cells and markedly suppressed expression of key regulators of lineage commitment and neurogenesis (REST and ASCL1/hASH1). Post-AD, NE LNCaP cells rapidly lost NE-like morphology following R1881 treatment, yet ASCL1/hASH1 expression was resistant to R1881 treatment and hASH1 nuclear localisation remained evident in apparently dedifferentiated LNCaP cells. Consequently, NE cells may not fully revert to an epithelial state and retain key NE-like features, suggesting a "hybrid" phenotype. This could fuel greater NE transdifferentiation, therapeutic resistance and NEPC evolution upon subsequent androgen deprivation. Such knowledge could facilitate CRPC tumour stratification and identify targets for more effective NEPC management.


Assuntos
Androgênios/farmacologia , Fatores de Transcrição Hélice-Alça-Hélice Básicos/metabolismo , Núcleo Celular/metabolismo , Transdiferenciação Celular , Células Neuroendócrinas/patologia , Neoplasias da Próstata/patologia , Linhagem Celular Tumoral , Núcleo Celular/efeitos dos fármacos , Forma Celular/efeitos dos fármacos , Transdiferenciação Celular/efeitos dos fármacos , Humanos , Masculino , Células Neuroendócrinas/efeitos dos fármacos , Neurogênese/efeitos dos fármacos , Neurônios/efeitos dos fármacos , Neurônios/metabolismo , Neurônios/patologia , Transporte Proteico/efeitos dos fármacos
19.
Eur Urol ; 76(5): 676-685, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31036442

RESUMO

BACKGROUND: Detection of androgen receptor splice variant-7 (AR-V7) mRNA in circulating tumour cells (CTCs) is associated with worse outcome in metastatic castration-resistant prostate cancer (mCRPC). However, studies rarely report comparisons with CTC counts and biopsy AR-V7 protein expression. OBJECTIVE: To determine the reproducibility of AdnaTest CTC AR-V7 testing, and associations with clinical characteristics, CellSearch CTC counts, tumour biopsy AR-V7 protein expression and overall survival (OS). DESIGN, SETTING, AND PARTICIPANTS: CTC AR-V7 status was determined for 227 peripheral blood samples, from 181 mCRPC patients with CTC counts (202 samples; 136 patients) and matched mCRPC biopsies (65 samples; 58 patients). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: CTC AR-V7 status was associated with clinical characteristics, CTC counts, and tissue biopsy AR-V7 protein expression. The association of CTC AR-V7 status and other baseline variables with OS was determined. RESULTS AND LIMITATIONS: Of the samples, 35% were CTC+/AR-V7+. CTC+/AR-V7+ samples had higher CellSearch CTC counts (median CTC; interquartile range [IQR]: 60, 19-184 vs 9, 2-64; Mann-Whitney test p<0.001) and biopsy AR-V7 protein expression (median H-score, IQR: 100, 63-148 vs 15, 0-113; Mann-Whitney test p=0.004) than CTC+/AR-V7- samples. However, both CTC- (63%) and CTC+/AR-V7- (62%) patients had detectable AR-V7 protein in contemporaneous biopsies. After accounting for baseline characteristics, there was shorter OS in CTC+/AR-V7+ patients than in CTC- patients (hazard ratio [HR] 2.13; 95% confidence interval [CI] 1.23-3.71; p=0.02); surprisingly, there was no evidence that CTC+/AR-V7+ patients had worse OS than CTC+/AR-V7- patients (HR 1.26; 95% CI 0.73-2.17; p=0.4). A limitation of this study was the heterogeneity of treatment received. CONCLUSIONS: Studies reporting the prognostic relevance of CTC AR-V7 status must account for CTC counts. Discordant CTC AR-V7 results and AR-V7 protein expression in matched, same-patient biopsies are reported. PATIENT SUMMARY: Liquid biopsies that determine circulating tumour cell androgen receptor splice variant-7 status have the potential to impact treatment decisions in metastatic castration-resistant prostate cancer patients. Robust clinical qualification of these assays is required before their routine use.


Assuntos
Células Neoplásicas Circulantes , Neoplasias de Próstata Resistentes à Castração , Receptores Androgênicos/genética , Processamento Alternativo , Biópsia/métodos , Contagem de Células/métodos , Resistencia a Medicamentos Antineoplásicos , Técnicas Genéticas , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/diagnóstico , Metástase Neoplásica/genética , Estadiamento de Neoplasias , Células Neoplásicas Circulantes/metabolismo , Células Neoplásicas Circulantes/patologia , Prognóstico , Neoplasias de Próstata Resistentes à Castração/genética , Neoplasias de Próstata Resistentes à Castração/patologia , Isoformas de Proteínas/genética , Reprodutibilidade dos Testes
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA