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1.
Nurse Educ Pract ; 77: 103952, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38598885

RESUMO

AIM: To develop an evidence-based framework of nurse preceptor competency domains and competency descriptors for use in nurse preceptor professional development. BACKGROUND: Nurse preceptors are registered nurses who coach, support and assess nursing students while simultaneously caring for patients. Working as both clinician and educator requires preceptors to develop additional skills. However, preceptor preparation is often overlooked and may not be evidence based. DESIGN: A modified e-Delphi study. METHODS: A three-phase e-Delphi method informed the study that was conducted between March and September 2023. In the first preparatory phase an expert group distilled the results of a previous literature review identifying seven preceptor competency domains and more than 200 competency descriptors. Two e-Delphi rounds followed. A 70% rater agreement response threshold was chosen as appropriate in this study. The CREDES reporting framework was followed. RESULTS: In the preparatory phase, the expert group (n=6) reached consensus on six preceptor domains and 57 preceptor descriptors. In Round 1, nurse preceptors (n= 89) rated the domains and descriptors using a four-point Likert scale; from not important to very important. Six domains and 34 competency descriptors were ranked as very important'. Round 2 participants (n=30) who opted in from Round 1 indicated their 100% agreement with the Round 1 results. The results reveal that preceptors resonate intuitively with the six domains Role model, Facilitator, Leader, Evaluator, Teacher and Coach and the related descriptors. CONCLUSION: The preceptor evidence-based competency framework offers registered nurse preceptors and their employers the opportunity to focus efforts in developing a nurse preceptor workforce. The framework can be used to design preceptor professional development and offers registered nurses a self-assessment tool to identify their preceptorship skills strengths and areas for development. If implemented in these ways the framework may benefit healthcare organisations to provide quality nurse preceptorship, thus enhancing the clinical learning experiences of nursing preceptees.


Assuntos
Competência Clínica , Técnica Delphi , Preceptoria , Humanos , Competência Clínica/normas , Desenvolvimento de Pessoal , Feminino , Enfermeiras e Enfermeiros/psicologia , Adulto , Masculino , Estudantes de Enfermagem/psicologia , Inquéritos e Questionários
2.
Nurse Educ Today ; 137: 106180, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38522256

RESUMO

BACKGROUND: Clinical practice provides an opportunity for undergraduate nursing students to develop the professional attitudes, knowledge and skills required for the delivery of safe competent care. Some students, however, are challenged to consolidate learning in clinical practice and are therefore at risk of failing courses or programmes. Supporting these students requires remediation strategies specific to clinical practice. This is challenging, however, as remediation approaches frequently centre on supporting students in theoretical components of courses/programmes, rather than clinical practice. OBJECTIVES: A scoping review was conducted to explore and summarise literature in undergraduate nurse education related to remediation support for clinical practice. METHODS: The research question was developed using the Population/Concept/Context model. Following the identification of keywords, five databases (CINHAL Plus, MEDLINE, ProQuest, Scopus and Informit) were searched. Abstracts and full-text articles were independently screened by two authors. Data from included studies was extracted and then thematically analysed. RESULTS: Twenty papers met inclusion/exclusion criteria (five literature reviews, one concept analysis, six commentary papers and eight original research studies). Research studies used qualitative, quantitative, or mixed methods research designs. Populations included nurse academics, mentors/preceptors, health professional students (including nursing students) and nursing students exclusively. Three themes were identified: pre-placement remediation strategies; on-placement remediation strategies and post-placement remediation strategies. All authors highlighted the importance of remediation for at-risk students in clinical practice. CONCLUSIONS: This review identified several remediation strategies that may support undergraduate nursing students in clinical practice. Few, however, were well-defined or rigorously evaluated, highlighting the need for additional research on nursing student remediation in clinical practice. A partnership-based approach to remediation that engages students, educators, and healthcare providers and is underpinned by clear processes may be of further benefit to nursing students in clinical practice.


Assuntos
Bacharelado em Enfermagem , Estudantes de Enfermagem , Humanos , Bacharelado em Enfermagem/métodos , Aprendizagem , Pessoal de Saúde , Mentores
3.
Nurs Open ; 11(2): e2076, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38375681

RESUMO

AIMS: To review the contemporary international literature on nurse preceptor competencies and map the components and their descriptors. REVIEW METHODS: A mapping review. DATA SOURCES: Articles reporting evidence-based and validated Registered Nurse (RN) preceptor competencies published between 2013 and 2022 were identified. Open access databases such as PubMed and Google Scholar and the library healthcare databases Scopus and CINAHL were searched. The authors collaborated at each review stage that included screening, article selection, tabulation, mapping and preparation of findings. RESULTS: Seven quantitative studies were included. Three were based on existing nurse preceptor competency data sets and four were purposely developed using collaborative research methods. Each study validated findings through a survey of nurse stakeholders. Three key competencies shared across all studies were 'facilitating teaching', 'being a role model' and 'evaluating student's performance'. The number of competency categories ranged from three to 10 and the accompanying item descriptors from 9 to 83. Although terminology describing data sets was inconsistent, similarity was seen across competency domains. CONCLUSION: The contemporary nursing preceptor role is considered an emerging specialist education role. The results offer a set of validated preceptor competency descriptors, applicable to practice, that provide insight into ways employers may recruit, support and retain nurse preceptors. IMPLICATIONS FOR THE PROFESSION: The mapped results provide a concise summary of nurse preceptor competency research internationally that can inform further development of RN preceptors. IMPACT: This review addresses the lack of consensus around nursing preceptor competencies for clinical supervision of undergraduate nursing students. Seven competency domains were identified describing key preceptor role capabilities. The domains Facilitator', 'Role model' and 'Evaluator' featured across the included studies: 'More than 300 competency descriptors were reported'. Our review results could better prepare RN preceptors for their important role. Employers of RN preceptors could use the results to design performance competencies that may enhance nursing preceptorship. REPORTING METHOD: This review adheres to the PRISMA-ScR EQUATOR guidelines as the recommended reporting method for mapping reviews.


Assuntos
Bacharelado em Enfermagem , Enfermeiras e Enfermeiros , Estudantes de Enfermagem , Humanos , Papel do Profissional de Enfermagem , Preceptoria/métodos
4.
Health Promot J Austr ; 35(2): 504-517, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37443427

RESUMO

ISSUE ADDRESSED: This paper reviews current research which examines nurses' assessment of patient's health literacy in the acute hospital setting. Research highlights, that patients with low health literacy have more frequent hospitalisations and are more likely to be re-admitted. Within the healthcare team, nurses are primarily responsible for teaching patients and deciphering health communication, to enhance understanding. Within the acute care setting, there remains a disparity in patient understanding of information, despite nurse-led education. The health literacy assessment and tailoring of information by nurses, is becoming more important with shorter stays, plus limited family visits and the wearing of masks with COVID-19 related changes. METHODS: An integrative review across four nursing databases, from 2010 and June 2022 was conducted. The integrative framework included problem identification, literature search, data evaluation, data analysis with thematic analysis, and results presentation. RESULTS: Nine studies were included. Common themes were nurses' overestimation of patients' health literacy, the use of universal precautions, and adapting communication techniques to improve education moments. CONCLUSION: The findings of this review indicate a tendency among nurses to overestimate their patients' health literacy levels, which can result in ineffective health education and inadequate discharge planning. SO WHAT: Nurses decipher health communication for their patients. Designing tailored patient communication and education could potentially be a cost saving measure for hospitals by reducing length of stay and reducing readmissions. Health literacy training should be incorporated into nursing practice.


Assuntos
Letramento em Saúde , Enfermeiras e Enfermeiros , Adulto , Humanos , Pacientes Internados , Comunicação , Hospitais
5.
J Clin Nurs ; 32(19-20): 7495-7508, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37340615

RESUMO

PROBLEM: Nurses are fundamental in presenting information to their patients to ensure understanding of information, and health directions enabling improved health outcomes. Limited research exists exploring how nurses assess patient's health literacy in Australia. AIM: To explore Australian nurses' perceptions of patients' health literacy and how nurses assess health literacy to provide patient education. DESIGN: A qualitative study underpinned by phenomenology. METHODS: Registered Nurses (N = 19) across five Queensland hospitals participated in semi-structured interviews which explored nurses' assessment of patient's health literacy level and their practices of delivering education. The transcripts were analysed using an inductive process with interpretative analysis. RESULTS: Four themes were identified: how we assess patient health literacy; challenges with health literacy assessment; consumer focused assessment; and building assessment strategies. Participants relied on cues from the patient to identify when information has not been understood. Participants felt that online training programs in the workplace would assist in education for assessment techniques; identification of patients with low health literacy; and how to best communicate with patients that have low health literacy. CONCLUSION: Formal health literacy assessments should be introduced to hospitals in Australia, but training is required to enable the nurse, the confidence and ability for health literacy assessment. Tailored education based on health literacy assessment would enhance the patient's understanding and improve discharge planning, which may reduce health service costs and readmissions. REPORTING METHOD: The Consolidated criteria for reporting qualitative research (COREQ) guidelines for qualitative research were followed. PATIENT OR PUBLIC CONTRIBUTION: Registered Nurses (N = 19) participated in qualitative interviews, providing data for analysis. RELEVANCE TO CLINICAL PRACTICE: This study shows that nurses are already conducting informal assessments, simply by using observation and looking for cues. More education for nurses about health literacy and how to tailor their discussions with patients will improve communication.


Assuntos
Letramento em Saúde , Humanos , Austrália , Hospitais , Queensland , Pesquisa Qualitativa
6.
SAGE Open Nurs ; 7: 23779608211035845, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34782862

RESUMO

INTRODUCTION: Clinical placements are a mandatory component of nursing students' education internationally. Despite clinical education being a key to nursing students' achievement of nursing competencies, few studies have reviewed students' narratives to describe their experiences of learning during clinical placement. Such studies may be important in offering a deeper insight into clinical learning experiences than quantitative surveys. METHODS: A systematic thematic synthesis of qualitative studies between 2010 and June 2020 was conducted. English language studies that offered a thematic analysis of undergraduate nursing students' experiences of learning during placement were sought. A search was made of five databases PubMed, Ovid Medline, CinahlPlus, SCOPUS, and Google Scholar. The study was guided by the ENTREQ statement for enhancing transparency in reporting the synthesis of qualitative research. RESULTS: Twenty-seven qualitative studies were included in the review. A thematic synthesis showed over 100 themes and subthemes across the studies. A cluster analysis revealed positive elements and others that were seen in the studies as a barrier (hindrance) to clinical learning. Positive elements included supportive instructors, close supervision, and belonging (in the team). Unsupportive instructors, a lack of supervision and not being included were seen as a hindrance. Three key overarching themes that could describe a successful placement were revealed as "Preparation," "Welcomed and wanted" and "Supervision experiences". A conceptual model of clinical placement elements conducive to nursing students' learning was developed to enhance understanding of the complexities associated with supervision. The findings and model are presented and discussed. CONCLUSION: The conceptual model presents positive elements that influence students' clinical placement experiences of learning. This model may provide a framework to guide professional development programs and strategies to support students and supervisors alike, an important step forward in moving beyond the current clinical placement rhetoric.

7.
Nurse Educ Pract ; 55: 103135, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34273731

RESUMO

AIM: The aim of this paper is to describe how the Invitational Theory were used to frame each of the phases of this sequential mixed methods study to provide valuable insights to the failure to fail phenomenon. BACKGROUND: The assessment of student nurses in clinical courses in undergraduate programmes remains problematic, with some students passing clinical courses when they do not meet standards for practice - failure to fail. Failure to fail is the allocation of passing grades to students who do not meet standards for practice. An understanding of assessors' experiences is central to unravelling the complexities surrounding the phenomenon of failure to fail. Traditionally, such inquiry has been specific and narrow. The Invitational Theory is offered as a comprehensive approach to provide insights and understanding into the complex phenomenon of failure to fail. DESIGN: The five domains of the Invitational Theory; people, processes, programmes, policies and places, were used to inform this sequential exploratory mixed methods study. METHODOLOGY: Phase 1 consisted of an integrative literature review. Phase 2 involved interviews and focus groups with tertiary assessors involved in assessment of students in clinical courses. Phase 3 involved the development, testing and piloting of a survey with tertiary and industry assessors. Phase 4 consisted of a meta-integration of all phases of the study. RESULTS: Key findings of the synthesis of these study phases demonstrated that the domains of the Invitational Theory enable a comprehensive and unique viewpoint of assessment during clinical practicum. All five domains of the Invitational Theory were evident throughout this study and provided unique insights into failure to fail. This research has identified the theoretical underpinnings of the Invitational Theory and its application can be of value in the area of nurse education and specifically assessments. CONCLUSION: The Invitational Theory domains provides a comprehensive and unique viewpoint of assessment of nursing students and contributed to the emerging body of literature regarding failure to fail. How the theoretical framework facilitates the understanding of failure to fail is described in this paper.


Assuntos
Estudantes de Enfermagem , Competência Clínica , Grupos Focais , Humanos , Inquéritos e Questionários
8.
J Adv Nurs ; 77(9): 3797-3805, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34105829

RESUMO

AIMS: To explore the experiences of strategic leads for nurse education as they sought to respond to the COVID-19 pandemic. DESIGN: We utilised a qualitative interpretative approach to explore education leaders' experiences of leading during the early months of the pandemic. METHODS: Nineteen leaders with significant strategic responsibility for nurse education in Australia, Canada, New Zealand, Singapore and the United Kingdom were identified via purposive sampling and agreed to participate. Interviews were held between May and July 2020. RESULTS: Four overarching themes arose from the analysis: (1) Crisis driven adaptability & flexibility; (2) Responsive, complex and changing communication; (3) Making decisions for student and staff safety; (4) Looking to the future; stronger partnerships. CONCLUSION: Internationally, while nursing education leaders faced different problems, they shared a common goal amidst the crisis to remain student-centred. They demonstrated they were able to face major challenges, respond to large scale logistical problems and make decisions under significant and ongoing pressure. IMPACT: In responding to the pandemic, nurse leaders shared knowledge and offered mutual support. This bodes well for future collaboration. The move to online learning accelerated an existing trend and it seems likely that this will continue. Given the pressures they experienced over an extended period, the sector may wish to consider how it prepares and supports existing and future leaders.


Assuntos
COVID-19 , Enfermeiros Internacionais , Humanos , Liderança , Pandemias , SARS-CoV-2
9.
Nurse Educ Today ; 98: 104666, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33221050

RESUMO

BACKGROUND: Many academics and clinicians who assess nursing students as part of their work-integrated learning experiences encounter difficulties with awarding a failing grade to students who do not meet fitness for practice standards. OBJECTIVES: The aim of this study was to explore and further our understanding of assessors' experiences of failure-to-fail of nursing students within work-integrated learning. DESIGN: This aim was achieved through an exploratory, sequential, mixed methods research project. METHODS: Guided by Invitational Theory, this programme of work included an integrated systematic review, one-on-one and focus group interviews, and finished with a survey. RESULTS: The results of each of the phases of this mixed methods study were integrated to provide a greater understanding of the enablers and barriers for assessors managing poor performing students to ameliorate failure to fail. Enablers identified included: assessor supports, programme flexibility, and organisational culture. The barriers included grade inflation, in appropriate student responses, organisational processes and workload. CONCLUSIONS: This comprehensive integration of a mixed methods study provides new and deeper understanding of the phenomenon of failure to fail. It provides clear recommendations for practical application by tertiary and clinical facilities to enhance the enablers and minimise the barriers to failure where it is warranted.


Assuntos
Estudantes de Enfermagem , Humanos , Aprendizagem , Inquéritos e Questionários
10.
Nurse Educ Pract ; 43: 102701, 2020 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-31981973

RESUMO

Assessment of fitness for practice in the nursing student population is an essential yet challenging component of nursing education. The aim of this research was to describe the development and preliminary validation of the Assess-Safe instrument that explores assessors' experiences of grading nursing student performances in clinical courses when that performance is not a clear pass or fail. A 3 phase approach was used to develop and psychometrically test the instrument. Phase 1 involved the development of a pool of items following a literature review, coupled with findings from qualitative data. In phase 2, an expert panel rated the items for clarity and relevance, reducing the item pool. Assessors of Australian undergraduate nursing students from industry and academia were recruited for this study. A sample of 149 assessors across industry and academia completed the resultant survey to pilot test the instrument; constituting Phase 3. A high content validity index score of 0.95 was achieved through expert review. Construct validity using factor analysis revealed four factors including: assessor support; process support; assessor introspection; and student support. The Assess-Safe instrument achieved good internal reliability with an overall Cronbach's alpha coefficient of 0.77; and sub-scale scores ranging from 0.71 to 0.79. The Assess-Safe instrument demonstrated satisfactory psychometric properties and has utility for education programmes, research and policy development across a variety of practice based professions. Nonetheless, further psychometric validation is warranted.

11.
Nurse Educ Today ; 76: 206-215, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30825733

RESUMO

BACKGROUND: Failing to fail nursing students in clinical assessments is an internationally acknowledged issue that necessitates thorough examination. Despite the gravity of 'mis-grading' nursing students, current research exploring this subject is limited. Understanding the experiences of assessors when faced with an underperforming student may help illuminate some of the broad issues associated with failure to fail. OBJECTIVES: To describe both tertiary and industry based assessors' experiences of grading nursing student performances in clinical courses when that performance was not a clear pass or fail. DESIGN: A pilot study using a descriptive survey design was employed. SETTING: Participants were drawn from all states and territories in Australia. PARTICIPANTS: Academic and industry assessors of undergraduate nursing students across Australian universities participated in this study. METHODS: A newly developed and validated survey was conducted via an online platform. Descriptive data were collected on assessors' experiences across the domains of the Invitational Theory: people; processes; programmes; policies and places. RESULTS: Participants clearly had a strong duty of care to patients and the nursing profession. However, 23.5% of participants had given the benefit of the doubt to student performances. They reported failing student performances nevertheless reported passing students. Some participants experienced a number of coercive student behaviours. They perceived that the culture of the ward impacted on student performances in assessments. Inadequate time to assess students in clinical practice was reported by 44% of participants. Participants reported no differentiation between theoretical and clinical assessments in their organisations' assessment policies. CONCLUSIONS: Assessors reported many challenges when assessing students who were not performing at requisite standards. This study furthered the extant literature around the impact of people and processes on assessors and failure to fail. For the first time, assessors' experiences of the assessment environment, programme design and organisational policies associated with grading marginal student performances are reported.


Assuntos
Competência Clínica/normas , Avaliação Educacional/normas , Estudantes de Enfermagem , Austrália , Bacharelado em Enfermagem , Feminino , Humanos , Masculino , Projetos Piloto , Inquéritos e Questionários
12.
J Obstet Gynaecol Can ; 41(4): 421-427, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30528839

RESUMO

OBJECTIVE: The objective of this study was to assess data from a fertility clinic and identify differences in patient and cycle characteristics, clinical pregnancy rates, and multiple gestation rates before and after fertility treatment funding and a policy of elective single embryo transfer were instituted by the Ontario government to reduce multiple gestations arising from fertility treatment. METHODS: This study was a retrospective database review of clinic and embryology laboratory data for all patients undergoing in vitro fertilization (IVF) and intracytoplasmatic sperm injection (ICSI) cycles over a 4-year period. The investigators compared IVF and ICSI cycles before funding, from January 1, 2014 to December 31, 2015, with cycles after funding, from January 1, 2016 to December 31, 2017. RESULTS: The number of cycles performed over a 2-year period increased from 554 to 853, of which 76.2% were funded. Patient age, body mass index, and parity were similar before and after funding. Fewer patients receiving funded IVF or ICSI had had a previous cycle. Cycle cancellation rates were similar before and after funding; however, there were fewer embryo transfers per cycle start after funding (80.3% vs. 72.2%, P = 0.001). The clinical pregnancy rate was similar before and after funding (37.8% vs. 32.5%, P = 0.09), whereas the multiple gestation rate was significantly lower (13.1% vs. 3.5%, P = 0.001). CONCLUSION: Since the government of Ontario began funding IVF and ICSI cycles, more patients are accessing treatment, many for the first time. The clinical pregnancy rate was maintained, whereas multiple gestations were significantly reduced. These findings support the benefit of single embryo transfer in the context of funded IVF and ICSI and demonstrate the importance of government-funded assisted reproductive technology.


Assuntos
Clínicas de Fertilização/legislação & jurisprudência , Transferência de Embrião Único/estatística & dados numéricos , Bases de Dados Factuais , Feminino , Humanos , Ontário , Gravidez , Estudos Retrospectivos , Transferência de Embrião Único/economia
13.
Nurse Educ Pract ; 20: 54-63, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27428804

RESUMO

'Failure to fail' is the allocation of pass grades to nursing students who do not display satisfactory clinical performance. This issue can have significant implications for individual students and assessors involved, as well as for nursing professionalism and patient safety. The aim of this systematic integrative literature review was to determine what is currently known about the issue of 'failure to fail' within undergraduate nursing programs. A literature search of five databases up to May 2015 was conducted to identify primary research papers. The search yielded 169 papers of which 24 met the inclusion criteria. The majority of papers had moderate or good methodological rigour, with most of the literature originating from the Northern Hemisphere. Five main themes emerged: failing a student is difficult; an emotional experience; confidence is required; unsafe student characteristics; and university support is required to fail students. The results suggest that 'failure to fail' is a real issue in tertiary facilities, with many complex facets. Given the costs of nurse education and the potential social and professional costs of poor quality nursing graduates, further rigorous research is required in this area.


Assuntos
Competência Clínica , Avaliação Educacional/métodos , Estudantes de Enfermagem , Bacharelado em Enfermagem , Emoções , Docentes de Enfermagem/psicologia , Humanos
14.
Pediatr Res ; 55(5): 884-93, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-14764914

RESUMO

Children who survive very preterm birth without major disability have a high prevalence of learning difficulty, attention deficit, and minor motor impairment (MMI). To determine whether these difficulties are associated with structural brain abnormalities, we studied 105 preterm children (<32 wk) at 7 y with tests of IQ and MMI (Movement ABC) and detailed magnetic resonance brain scans. Scans were assessed qualitatively for visible cerebral lesions. Volume measurements of the caudate nuclei and hippocampal formations were made. Total brain volume (TBV) was estimated from the head circumference. Qualitative assessment of the scans showed evidence of cerebral lesions in 20 (19%), which were associated with lower IQ and more frequent MMI. IQ correlated with right and left caudate volume (Spearman's rho 0.304 and 0.349; p < 0.01). This association persisted (except for verbal IQ) when caudate volume was expressed as a percentage of estimated TBV to allow for overall brain size. No significant correlations with hippocampal volumes were observed. These differences persisted when only scans from children without visible lesions on scan were considered. MMI was significantly associated only with TBV and was more common in children with evidence of thinning of the posterior corpus callosum, although most children with MMI have a normal corpus callosum. Lower IQs in children who were born preterm are related to poorer development of the caudate relative to the rest of the brain, independent of other lesions. These findings suggest abnormal brain development after perinatal injury or postnatal nutritional deficits is responsible for cognitive deficits in preterm children.


Assuntos
Núcleo Caudado/anatomia & histologia , Hipocampo/anatomia & histologia , Recém-Nascido Prematuro , Inteligência , Encéfalo/patologia , Criança , Corpo Caloso/patologia , Deficiências do Desenvolvimento/patologia , Humanos , Recém-Nascido , Testes de Inteligência , Deficiências da Aprendizagem/patologia , Imageamento por Ressonância Magnética , Fatores de Tempo
15.
Pediatr Res ; 54(6): 868-74, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12930906

RESUMO

The objective of this study was to determine whether intelligence and minor motor impairments in children who are born preterm without major disability are associated with cerebral white matter (CWM) and hippocampal abnormalities on magnetic resonance imaging (MRI). A total of 103 preterm children were studied at age 7 y with detailed magnetic resonance brain scans, including a T2-mapping sequence from which T2 relaxation times of the CWM and hippocampal formations were calculated. All of the children had no major motor disability, attended normal school, and had undergone assessment of IQ and a test for minor motor impairment (MMI). Twenty children had visible lesions on MRI, which were associated with lower IQ and more frequent MMI. Mean (SD) IQ was 90 (14.1). Twenty-five children were shown to have MMI (Movement ABC at below the fifth centile). This group was shown to have significantly longer T2 relaxation times for CWM (mean difference 2.1 ms right, 3.1 ms left) but not the hippocampus than the children without MMI. These differences persisted when only children without visible lesions on scans were considered (mean difference 1.5 ms bilaterally). There was no significant correlation between IQ and T2 relaxation times. Children who are born preterm without subsequent major neurodisability may, in addition to visible lesions on MRI scans, have a diffuse abnormality of CWM, manifest as an increase in T2 relaxation time. This abnormality shows a close correlation with minor motor impairment but not with full-scale IQ.


Assuntos
Hipocampo/anormalidades , Hipocampo/fisiopatologia , Recém-Nascido Prematuro , Imageamento por Ressonância Magnética , Mapeamento Encefálico , Hipocampo/patologia , Humanos , Recém-Nascido , Inteligência , Deficiências da Aprendizagem/patologia , Deficiências da Aprendizagem/fisiopatologia , Transtornos dos Movimentos/patologia , Transtornos dos Movimentos/fisiopatologia , Fibras Nervosas Mielinizadas/patologia
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