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1.
Med Teach ; 42(11): 1234-1242, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32757675

RESUMO

PURPOSE: The use of telemedicine, a part of 'Virtual Care', is rapidly entering mainstream clinical practice. The ideal curriculum for educating physicians to practice in this emerging field has not been established. We examined the literature to evaluate published curricula for quality and comprehensiveness through the lens of Competency-Based Medical Education (CBME). METHODS: We performed a scoping review using CanMEDS as a framework. Peer-reviewed articles describing telemedicine training curricula were identified. Trainee population, curricular points, stage of implementation, evaluation depth, country, and citations (a marker of quality) were examined. RESULTS: Forty-three curricula from 11 countries were identified, addressing all training levels and covering multiple specialties. Instructional methods included lectures (60.5%), hands-on experiences (76%), directed reading (24%), online modules (21%), reflection (13%), simulation (34%), and group discussions (16%). Hands-on curricula covered all CanMEDS roles more often. Twenty-nine of the implemented curricula were evaluated; 83% were rated positively. CONCLUSIONS: Our scoping review helps inform more comprehensive and efficacious curricula for teaching telemedicine. We suggest centering curricula on a competency-based, outcomes-oriented framework such as CanMEDS with multiple teaching modalities complementing hands-on experiences. This will facilitate rigorous telemedicine training to deliver on the promise of high-quality patient care.


Assuntos
Educação de Graduação em Medicina , Médicos , Telemedicina , Educação Baseada em Competências , Currículo , Humanos
2.
Med Educ ; 51(6): 575-584, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28332224

RESUMO

CONTEXT: Being able to accurately monitor learning activities is a key element in self-regulated learning in all settings, including medical schools. Yet students' ability to monitor their progress is often limited, leading to inefficient use of study time. Interventions that improve the accuracy of students' monitoring can optimise self-regulated learning, leading to higher achievement. This paper reviews findings from cognitive psychology and explores potential applications in medical education, as well as areas for future research. COGNITIVE PSYCHOLOGY: Effective monitoring depends on students' ability to generate information ('cues') that accurately reflects their knowledge and skills. The ability of these 'cues' to predict achievement is referred to as 'cue diagnosticity'. Interventions that improve the ability of students to elicit predictive cues typically fall into two categories: (i) self-generation of cues and (ii) generation of cues that is delayed after self-study. Providing feedback and support is useful when cues are predictive but may be too complex to be readily used. APPLICATION TO MEDICAL EDUCATION: Limited evidence exists about interventions to improve the accuracy of self-monitoring among medical students or trainees. Developing interventions that foster use of predictive cues can enhance the accuracy of self-monitoring, thereby improving self-study and clinical reasoning. First, insight should be gained into the characteristics of predictive cues used by medical students and trainees. Next, predictive cue prompts should be designed and tested to improve monitoring and regulation of learning. Finally, the use of predictive cues should be explored in relation to teaching and learning clinical reasoning. CONCLUSIONS: Improving self-regulated learning is important to help medical students and trainees efficiently acquire knowledge and skills necessary for clinical practice. Interventions that help students generate and use predictive cues hold the promise of improved self-regulated learning and achievement. This framework is applicable to learning in several areas, including the development of clinical reasoning.


Assuntos
Educação de Graduação em Medicina/métodos , Aprendizagem , Autocontrole , Estudantes de Medicina/psicologia , Sinais (Psicologia) , Humanos , Motivação , Faculdades de Medicina
3.
Med Educ ; 50(5): 540-9, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27072443

RESUMO

CONTEXT: Chest radiograph interpretation is a complex skill and learners may benefit from deliberate instructional design modalities, such as mixed practice. Proposed benefits of mixed over blocked practice include the elimination of cueing and the highlighting of contrasting features. However, current evidence for the superiority of mixed practice is conflicting. OBJECTIVES: This study compares mixed versus blocked practice, after the initial teaching of concepts, among medical students using online self-study chest X-ray (CXR) modules. METHODS: Two online CXR modules were developed that cover identical content but differ in the organisation of practice images. Blocked modules provided practice CXRs after each category, whereas mixed modules randomly ordered practice radiographs after all categories had been taught. Medical students in Years 1-3 were randomised to either module and were tested on 20 new CXRs immediately after completion and at 2 weeks. The primary outcome was immediate diagnostic accuracy. Secondary outcomes included diagnostic accuracy at 2 weeks, time per module and reported module difficulty. RESULTS: A total of 58 medical students participated (32 in the blocked and 26 in the mixed module). Level of training and previous CXR experience were similar across the groups. Totals of 1160 and 1120 answers were evaluated for immediate and 2 week post-test scores, respectively. There were no significant differences in mean diagnostic accuracy between the blocked (mean score: 11.7/20) and mixed (mean score: 11.0/20) practice groups on immediate testing (t = 0.83, d.f. = 56, p = 0.41) or at 2 weeks (mean score: 11.2/20 versus 10.9/20; t = 0.518, d.f. = 54, p = 0.61). Post-test scores showed no correlation with training level (R = 0.23, p = 0.09) or completion time (R = -0.09, p = 0.5). Reported module difficulty was similar between the mixed (3.22/5) and blocked (3.19/5) groups. On multivariable linear regression controlling for completion time, training level and CXR experience, between-group differences remained non-significant. CONCLUSIONS: Performance after mixed practice was similar to that after blocked practice. Results may reflect similarities between modules in teaching, which emphasised contrast learning, greater effect of initial teaching rather than practice, or absence of tutor-led instruction. Alternatively, results may reflect the higher cognitive load in mixed practice imposed by contrasting multiple diagnoses.


Assuntos
Educação Médica/métodos , Radiografia Torácica , Instrução por Computador/métodos , Avaliação Educacional , Humanos , Radiografia Torácica/métodos
6.
Med Educ ; 49(8): 805-14, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26152492

RESUMO

CONTEXT: The effective implementation of cognitive load theory (CLT) to optimise the instructional design of simulation-based training requires sensitive and reliable measures of cognitive load. This mixed-methods study assessed relationships between commonly used measures of total cognitive load and the extent to which these measures reflected participants' experiences of cognitive load in simulation-based procedural skills training. METHODS: Two groups of medical residents (n = 38) completed three questionnaires after participating in simulation-based procedural skills training sessions: the Paas Cognitive Load Scale; the NASA Task Load Index (TLX), and a cognitive load component (CLC) questionnaire we developed to assess total cognitive load as the sum of intrinsic load (how complex the task is), extraneous load (how the task is presented) and germane load (how the learner processes the task for learning). We calculated Pearson's correlation coefficients to assess agreement among these instruments. Group interviews explored residents' perceptions about how the simulation sessions contributed to their total cognitive load. Interviews were audio-recorded, transcribed and subjected to qualitative content analysis. RESULTS: Total cognitive load scores differed significantly according to the instrument used to assess them. In particular, there was poor agreement between the Paas Scale and the TLX. Quantitative and qualitative findings supported intrinsic cognitive load as synonymous with mental effort (Paas Scale), mental demand (TLX) and task difficulty and complexity (CLC questionnaire). Additional qualitative themes relating to extraneous and germane cognitive loads were not reflected in any of the questionnaires. CONCLUSIONS: The Paas Scale, TLX and CLC questionnaire appear to be interchangeable as measures of intrinsic cognitive load, but not of total cognitive load. A more complete understanding of the sources of extraneous and germane cognitive loads in simulation-based training contexts is necessary to determine how best to measure and assess their effects on learning and performance outcomes.


Assuntos
Cognição , Internato e Residência , Treinamento por Simulação , Inquéritos e Questionários , Avaliação Educacional , Humanos , Aprendizagem , Ontário , Teoria Psicológica , Treinamento por Simulação/métodos
7.
Perspect Med Educ ; 13(1): 85-94, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38343557

RESUMO

Transformative changes in health professions education need to incorporate effective faculty development, but few very large-scale faculty development designs have been described. The Royal College of Physicians and Surgeons of Canada's Competence by Design project was launched to transform the delivery of postgraduate medical education in Canada using a competency-based model. In this paper we outline the goals, principles, and rationale of the Royal College's national strategy for faculty and resident development initiatives to support the implementation of Competence by Design. We describe the activities and resources for both faculty and trainees that facilitated the redesign of training programs for each specialty and subspecialty at the national level, as well as supporting the implementation of the redesign at the local level. This undertaking was not without its challenges: we thus reflect on those challenges, enablers, and the lessons learned, and discuss a continuous quality improvement approach that was taken to iteratively inform the implementation process moving forward.


Assuntos
Educação Médica , Medicina , Médicos , Humanos , Docentes de Medicina , Canadá
8.
Perspect Med Educ ; 13(1): 201-223, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38525203

RESUMO

Postgraduate medical education is an essential societal enterprise that prepares highly skilled physicians for the health workforce. In recent years, PGME systems have been criticized worldwide for problems with variable graduate abilities, concerns about patient safety, and issues with teaching and assessment methods. In response, competency based medical education approaches, with an emphasis on graduate outcomes, have been proposed as the direction for 21st century health profession education. However, there are few published models of large-scale implementation of these approaches. We describe the rationale and design for a national, time-variable competency-based multi-specialty system for postgraduate medical education called Competence by Design. Fourteen innovations were bundled to create this new system, using the Van Melle Core Components of competency based medical education as the basis for the transformation. The successful execution of this transformational training system shows competency based medical education can be implemented at scale. The lessons learned in the early implementation of Competence by Design can inform competency based medical education innovation efforts across professions worldwide.


Assuntos
Educação Médica , Medicina , Humanos , Educação Baseada em Competências/métodos , Educação Médica/métodos , Competência Clínica , Publicações
9.
J Gen Intern Med ; 28(5): 723-7, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23319411

RESUMO

BACKGROUND: Procedures form a core competency for internists, yet many do not master these skills during residency. Simulation can help fill this gap, but many curricula focus on technical skills, and overlook communication skills necessary to perform procedures proficiently. Hybrid simulation (HS) is a novel way to teach and assess procedural skills in an integrated, contextually-based way. AIM: To create a HS model for teaching arthrocentesis to internal medicine residents. SETTING: Internal medicine residency program at the University of Toronto. PARTICIPANTS: Twenty four second-year internal medicine residents. PROGRAM DESCRIPTION: Residents were introduced to HS, given practice time with feedback from standardized patients (SPs) and faculty, and assessed individually using a different scenario and SP. Physicians scored overall performance using a 6-point procedural skills measure, and both physicians and SPs scored communication using a 5-point communication skills measure. PROGRAM EVALUATION: Realism was highly rated by residents (4.13/5.00), SPs (4.00) and physicians (4.33), and was perceived to enhance learning. Residents' procedural skills were rated as 4.21/6.00 (3.00 - 5.00; ICC = 0.77, [0.53 - 0.92]), comparable to an experienced post-graduate year (PGY) 2-3; and all but one resident was considered competent. DISCUSSION: HS facilitates simultaneous acquisition of technical and communication skills. Future research should examine whether HS improves transfer of skills to the clinical setting.


Assuntos
Educação de Pós-Graduação em Medicina/métodos , Articulação do Joelho , Paracentese/educação , Competência Clínica , Comunicação , Avaliação Educacional/métodos , Humanos , Internato e Residência , Paracentese/normas , Simulação de Paciente , Relações Médico-Paciente , Avaliação de Programas e Projetos de Saúde
10.
Adv Health Sci Educ Theory Pract ; 18(3): 497-508, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22717993

RESUMO

Use of dual-processing has been widely touted as a strategy to reduce diagnostic error in clinical medicine. However, this strategy has not been tested among medical trainees with complex diagnostic problems. We sought to determine whether dual-processing instruction could reduce diagnostic error across a spectrum of experience with trainees undertaking cardiac physical exam. Three experiments were conducted using a similar design to teach cardiac physical exam using a cardiopulmonary simulator. One experiment was conducted in each of three groups: experienced, intermediate and novice trainees. In all three experiments, participants were randomized to receive undirected or dual-processing verbal instruction during teaching, practice and testing phases. When tested, dual-processing instruction did not change the probability assigned to the correct diagnosis in any of the three experiments. Among intermediates, there was an apparent interaction between the diagnosis tested and the effect of dual-processing instruction. Among relative novices, dual processing instruction may have dampened the harmful effect of a bias away from the correct diagnosis. Further work is needed to define the role of dual-processing instruction to reduce cognitive error. This study suggests that it cannot be blindly applied to complex diagnostic problems such as cardiac physical exam.


Assuntos
Cardiologia/educação , Exame Físico , Ensino/métodos , Competência Clínica , Erros de Diagnóstico/prevenção & controle , Cardiopatias/diagnóstico , Humanos , Manequins , Exame Físico/métodos
11.
BMC Med Educ ; 13: 97, 2013 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-23842504

RESUMO

BACKGROUND: Standardized doctor's orders are replacing traditional order writing in teaching hospitals. The impact of this shift in practice on medical education is unknown. It is possible that preprinted orders interfere with knowledge acquisition and retention by not requiring active decision-making. The objective of the study was to evaluate the impact of standardized admission orders on disease-specific knowledge among undergraduate medical trainees. METHODS: This prospective cohort study enrolled Year 3 (n = 121) and Year 4 (n = 54) medical students at two academic hospitals in Toronto (Ontario, Canada) during their general internal medicine rotation. We used standardized orders for patient admissions for alcohol withdrawal (AW) and for acute exacerbations of chronic obstructive pulmonary disease (AECOPD) as the intervention and manual order writing as the control. Educational outcomes were assessed through end-of-rotation questionnaires assessing disease-specific knowledge of AW and AECOPD. RESULTS AND DISCUSSIONS: Of 175 students, 105 had exposure to patients with alcohol withdrawal during their rotation, and 68 students wrote admission orders. Among these 68 students, 48 used standardized orders (intervention, n = 48) and 20 used manual order writing (control, n = 20). Only 3 students used standardized orders for AECOPD, precluding analysis. There was no significant difference found in mean total score of questionnaires between those who used AW standardized orders and those who did not (11.8 vs. 11.0, p = 0.4). Students who had direct clinical experience had significantly higher mean total scores (11.6 vs. 9.0, p < 0.0001 for AW; 13.8 vs. 12.6, p = 0.02 for AECOPD) compared to students who did not. When corrected for overall knowledge, this difference only persisted for AW. CONCLUSIONS: No significant differences were found in total scores between students who used standardized admission orders and traditional manual order writing. Clinical exposure was associated with increase in disease-specific knowledge.


Assuntos
Educação de Graduação em Medicina/métodos , Transtornos Relacionados ao Uso de Álcool/terapia , Avaliação Educacional , Humanos , Médicos/normas , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/terapia , Estudantes de Medicina/psicologia , Ensino/métodos
12.
J Contin Educ Health Prof ; 43(1): 52-59, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36849429

RESUMO

ABSTRACT: The information systems designed to support clinical care have evolved separately from those that support health professions education. This has resulted in a considerable digital divide between patient care and education, one that poorly serves practitioners and organizations, even as learning becomes ever more important to both. In this perspective, we advocate for the enhancement of existing health information systems so that they intentionally facilitate learning. We describe three well-regarded frameworks for learning that can point toward how health care information systems can best evolve to support learning. The Master Adaptive Learner model suggests ways that the individual practitioner can best organize their activities to ensure continual self-improvement. The PDSA cycle similarly proposes actions for improvement but at a health care organization's workflow level. Senge's Five Disciplines of the Learning Organization, a more general framework from the business literature, serves to further inform how disparate information and knowledge flows can be managed for continual improvement. Our main thesis holds that these types of learning frameworks should inform the design and integration of information systems serving the health professions. An underutilized mediator of educational improvement is the ubiquitous electronic health record. The authors list learning analytic opportunities, including potential modifications of learning management systems and the electronic health record, that would enhance health professions education and support the shared goal of delivering high-quality evidence-based health care.


Assuntos
Registros Eletrônicos de Saúde , Aprendizagem , Humanos , Ocupações em Saúde , Conhecimento
13.
14.
Med Educ ; 46(8): 815-22, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22803759

RESUMO

CONTEXT: Schema-based instruction may alter knowledge organisation and diagnostic reasoning strategies through the provision of structured knowledge to novice trainees. The effects of schema-based instruction on diagnostic accuracy and knowledge organisation have not been rigorously tested. METHODS: Year 2 medical students were randomised to learn four cardiac diagnoses using schema-based instruction (n = 26) or traditional instruction (n = 27) on a high-fidelity cardiopulmonary simulator (CPS). Students completed case-based learning in groups of two to five and underwent individual written and practical tests. The written test consisted of questions testing features that linked or distinguished diagnoses (structured knowledge) and questions testing features of individual diagnoses (factual knowledge). A practical test of diagnostic accuracy on the CPS was performed for two diagnoses present in the learning phase (taught lesions) and two untaught lesions. A majority of students (n = 37, 70%) voluntarily returned for follow-up written testing 2-4 weeks later. RESULTS: Learning time and accuracy did not differ between students on schema-based and those on traditional instruction. Students receiving schema-based instruction performed better on structured knowledge questions (p < 0.001) and no differently on factual knowledge questions (p = 0.7). Relative differences between groups remained unchanged on follow-up testing. Diagnostic success was higher in the schema-based instruction group for taught lesions (mean difference = 38%, 95% confidence interval [CI] 20-56; p < 0.001) and untaught lesions (mean difference = 31%, 95% CI 15-48; p < 0.001). CONCLUSIONS: Schema-based instruction was associated with improved retention of structured knowledge and diagnostic performance among novices. This study provides important proof-of-concept for a schema-based approach and suggests there is substantial benefit to using this approach with novice trainees.


Assuntos
Educação Médica/métodos , Avaliação Educacional/métodos , Estudantes de Medicina/psicologia , Ensino/métodos , Algoritmos , Análise de Variância , Canadá , Educação Médica/normas , Avaliação Educacional/normas , Humanos , Ensino/normas
15.
Can J Gastroenterol ; 26(7): 436-40, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22803018

RESUMO

BACKGROUND: Polyethylene glycol-based bowel preparations (PEGBPs) and sodium picosulfate (NaPS) are commonly used for bowel cleansing before colonoscopy. Little is known about adverse events associated with these preparations, particularly in older patients or patients with medical comorbidities. OBJECTIVE: To characterize the incidence of serious events following outpatient colonoscopy in patients using PEGBPs or NaPS. METHODS: The present population-based retrospective cohort study examined data from Ontario health care databases between April 1, 2005 and December 31, 2007, including patients >=66 years of age who received either PEGBP or NaPS for an outpatient colonoscopy. Patients with cardiac or renal disease, long-term care residents or patients receiving concurrent diuretic therapy were identified as high risk for adverse events. The primary outcome was a serious event (SE) defined as a composite of nonelective hospitalization, emergency department visit or death within seven days of the colonoscopy. RESULTS: Of the 50,660 outpatients >=66 years of age who underwent a colonoscopy, SEs were observed in 675 (2.4%) and 543 (2.4%) patients in the PEGBP and NaPS groups, respectively. Among high-risk patients (n=30,168), SEs occurred in 481 (2.8%) and 367 (2.8%) of patients receiving PEGBP and NaPS, respectively. CONCLUSIONS: The SE rate within seven days of outpatient colonoscopy was 24 per 1000 procedures, and among high-risk patients was 28 per 1000 procedures. The rates were similar for PEGBP and NaPS. Clinicians should be aware of the risks associated with colonoscopy in older patients with comorbidities.


Assuntos
Catárticos/efeitos adversos , Colonoscopia/efeitos adversos , Polietilenoglicóis/efeitos adversos , Sulfatos/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Feminino , Humanos , Ontário
16.
Teach Learn Med ; 24(3): 238-41, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22775788

RESUMO

BACKGROUND: Morning report is an interactive case-based teaching session common to internal medicine training programs across North America. DESCRIPTION: We report here on a morning report web log ("blog"), created and updated after morning report sessions by the Chief Medical Resident with pertinent clinical topics, links to journal articles, and medical images. Trainees on their internal medicine rotation were e-mailed a web link with each posting. The aim was to enhance learning on clinical topics discussed at morning report by reinforcing topics and promoting further reading. EVALUATION: The educational impact of the blog was evaluated using detailed web metrics and surveys of attendees. The intended audience spent on average more than 5 min reading the blog and viewed more than 3 pages per visit. Almost half of attendees accessed the blog after completing their internal medicine rotation. The blog was also accessed by a global audience. Trainees rated the blogs a useful learning tool and cited it to be among the top 3 educational resources accessed during their rotation. CONCLUSIONS: In summary, a morning report blog was perceived by learners to be an effective complement to case-based teaching sessions. The combination of novel web metrics and survey data allowed for a multifaceted evaluation of the educational impact of the blog.


Assuntos
Blogging , Educação Médica/métodos , Aprendizagem Baseada em Problemas/métodos , Ensino/métodos , Coleta de Dados , Avaliação Educacional/métodos , Escolaridade , Docentes de Medicina , Humanos , Internet , Ontário
17.
JAMA Intern Med ; 182(3): 265-273, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35040926

RESUMO

IMPORTANCE: Scalable deprescribing interventions may reduce polypharmacy and the use of potentially inappropriate medications (PIMs); however, few studies have been large enough to evaluate the impact that deprescribing may have on adverse drug events (ADEs). OBJECTIVE: To evaluate the effect of an electronic deprescribing decision support tool on ADEs after hospital discharge among older adults with polypharmacy. DESIGN, SETTING, AND PARTICIPANTS: This was a cluster randomized clinical trial of older (≥65 years) hospitalized patients with an expected survival of more than 3 months who were admitted to 1 of 11 acute care hospitals in Canada from August 22, 2017, to January 13, 2020. At admission, participants were taking 5 or more medications per day. Data analyses were performed from January 3, 2021, to September 23, 2021. INTERVENTIONS: Personalized reports of deprescribing opportunities generated by MedSafer software to address usual home medications and measures of prognosis and frailty. Deprescribing reports provided to the treating team were compared with usual care (medication reconciliation). MAIN OUTCOMES AND MEASURES: The primary outcome was a reduction of ADEs within the first 30 days postdischarge (including adverse drug withdrawal events) captured through structured telephone surveys and adjudicated blinded to intervention status. Secondary outcomes were the proportion of patients with 1 or more PIMs deprescribed at discharge and the proportion of patients with an adverse drug withdrawal event (ADWE). RESULTS: A total of 5698 participants (median [range] age, 78 [72-85] years; 2858 [50.2%] women; race and ethnicity data were not collected) were enrolled in 3 clusters and were adjudicated for the primary outcome (control, 3204; intervention, 2494). Despite cluster randomization, there were group imbalances, eg, the participants in the intervention arm were older and had more PIMS prescribed at baseline. After hospital discharge, 4989 (87.6%) participants completed an ADE interview. There was no significant difference in ADEs within 30 days of discharge (138 [5.0%] of 2742 control vs 111 [4.9%] of 2247 intervention participants; adjusted risk difference [aRD] -0.8%; 95% CI, -2.9% to 1.3%). Deprescribing increased from 795 (29.8%) of 2667 control to 1249 (55.4%) of 2256 intervention participants [aRD, 22.2%; 95% CI, 16.9% to 27.4%]. There was no difference in ADWEs between groups. Several post hoc sensitivity analyses, including the use of a nonparametric test to address the low cluster number, group imbalances, and potential biases, did not alter study conclusions. CONCLUSIONS AND RELEVANCE: This cluster randomized clinical trial showed that providing deprescribing clinical decision support during acute hospitalization had no demonstrable impact on ADEs, although the intervention was safe and led to improvements in deprescribing. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03272607.


Assuntos
Desprescrições , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Assistência ao Convalescente , Idoso , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/prevenção & controle , Eletrônica , Feminino , Hospitalização , Humanos , Masculino , Alta do Paciente , Polimedicação
18.
Med Educ ; 45(8): 827-34, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21752079

RESUMO

CONTEXT: Literature on diagnostic test interpretation has shown that access to clinical history can both enhance diagnostic accuracy and increase diagnostic error. Knowledge of clinical history has also been shown to enhance the more complex cognitive task of physical examination diagnosis, possibly by enabling early hypothesis generation. However, it is unclear whether clinicians adhere to these early hypotheses in the face of unexpected physical findings, thus resulting in diagnostic error. METHODS: A sample of 180 internal medicine residents received a short clinical history and conducted a cardiac physical examination on a high-fidelity simulator. Resident Doctors (Residents) were randomised to three groups based on the physical findings in the simulator. The concordant group received physical examination findings consistent with the diagnosis that was most probable based on the clinical history. Discordant groups received findings associated with plausible alternative diagnoses which either lacked expected findings (indistinct discordant) or contained unexpected findings (distinct discordant). Physical examination diagnostic accuracy and physical examination findings were analysed. RESULTS: Physical examination diagnostic accuracy varied significantly among groups (75 ± 44%, 2 ± 13% and 31 ± 47% in the concordant, indistinct discordant and distinct discordant groups, respectively (F(2,177) = 53, p < 0.0001). Of the 115 Residents who were diagnostically unsuccessful, 33% adhered to their original incorrect hypotheses. Residents verbalised an average of 12 findings (interquartile range: 10-14); 58 ± 17% were correct and the percentage of correct findings was similar in all three groups (p = 0.44). CONCLUSIONS: Residents showed substantially decreased diagnostic accuracy when faced with discordant physical findings. The majority of trainees given discordant physical findings rejected their initial hypotheses, but were still diagnostically unsuccessful. These results suggest that overcoming the bias induced by a misleading clinical history may involve two independent steps: rejection of the incorrect initial hypothesis, and selection of the correct diagnosis. Educational strategies focused solely on prompting clinicians to re-examine their hypotheses may be insufficient to reduce diagnostic error.


Assuntos
Competência Clínica/normas , Diagnóstico Diferencial , Erros de Diagnóstico/prevenção & controle , Educação de Pós-Graduação em Medicina/métodos , Anamnese/normas , Exame Físico/normas , Análise de Variância , Educação de Pós-Graduação em Medicina/normas , Humanos , Anamnese/métodos , Distribuição Aleatória , Ensino/métodos
19.
Med Educ ; 45(4): 415-21, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21401690

RESUMO

CONTEXT: Clinical context may act as both an aid to decision making and a source of bias contributing to medical error. The effect of clinical history, a form of clinical context, on the diagnostic accuracy of the physical examination is unknown. METHODS: We randomised internal medicine residents to receive either no history or a short stem suggestive of one of six cardiac valvular diagnoses prior to a 10-minute objective structured clinical examination station assessing cardiac examination skills using a high-fidelity simulator. Clinical performance and diagnostic accuracy were compared using a standardised checklist. RESULTS: A total of 159 internal medicine residents were enrolled after providing informed consent. Of these, 80% arrived at the correct diagnosis, with diagnostic accuracy varying significantly by valve lesion (49-100%; p < 0.0001). Clinical context was associated with improved diagnostic accuracy compared with no history (90% versus 74%; likelihood ratio= 6.6, p < 0.0001), but was not associated with trainees' ability to identify and characterise physical findings. Among residents given clinical context, higher diagnostic accuracy was only achieved by those able to correctly predict the diagnosis from the history. CONCLUSIONS: Clinical context is associated with enhanced diagnostic accuracy of common valvular lesions. However, this effect seems linked to heuristic hypothesis generation and may predispose to premature diagnostic closure, anchoring and confirmation bias.


Assuntos
Competência Clínica/normas , Tomada de Decisões , Erros de Diagnóstico/prevenção & controle , Internato e Residência , Anamnese/métodos , Exame Físico/normas , Análise de Variância , Doenças das Valvas Cardíacas/diagnóstico , Humanos , Anamnese/normas , Ensino/métodos
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