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1.
Neurosurg Focus ; 53(2): E3, 2022 08.
Article in English | MEDLINE | ID: mdl-35916086

ABSTRACT

OBJECTIVE: Simulation is increasingly recognized as an important supplement to operative training. The live rat femoral artery model is a well-established model for microsurgical skills simulation. In this study, the authors present an 11-year experience incorporating a comprehensive, longitudinal microsurgical training curriculum into a Canadian neurosurgery program. The first goal was to evaluate training effectiveness, using a well-studied rating scale with strong validity. The second goal was to assess the impact of the curriculum on objective measures of subsequent operating room performance during postgraduate year (PGY)-5 and PGY-6 training. METHODS: PGY-2 neurosurgery residents completed a 1-year curriculum spanning 17 training sessions divided into 5 modules of increasing fidelity. Both perfused duck wing and live rat vessel training models were used. Three modules comprised live microvascular anastomosis. Trainee performance was video recorded and blindly graded using the Objective Structured Assessment of Technical Skills Global Rating Scale. Eleven participants who completed the training curriculum and 3 subjects who had not participated had their subsequent operative performances evaluated when they were at the PGY-5 and PGY-6 levels. RESULTS: Eighteen participants completed 106 microvascular anastomoses during the study. There was significant improvement in 6 measurable skills during the curriculum. The mean overall score was significantly higher on the fifth attempt compared with the first attempt for all 3 live anastomotic modules (p < 0.001). Each module had a different improvement profile across the skills assessed. Those who completed the microvascular skills curriculum demonstrated a greater number of independent evaluations during superficial surgical exposure, deep exposure, and primary maneuvers at the PGY-5 and PGY-6 levels. CONCLUSIONS: High-fidelity microsurgical simulation training leads to significant improvement in microneurosurgical skills. Transfer of acquired skills to the operative environment and durability for at least 3 to 4 years show encouraging preliminary results and are subject to ongoing investigation.


Subject(s)
Internship and Residency , Simulation Training , Animals , Canada , Clinical Competence , Educational Measurement/methods , Humans , Rats
2.
Childs Nerv Syst ; 37(2): 627-636, 2021 02.
Article in English | MEDLINE | ID: mdl-32720077

ABSTRACT

INTRODUCTION: Training capable and competent neurosurgeons to work in underserved regions of the world is an essential component of building global neurosurgical capacity. One strategy for achieving this goal is establishing longitudinal partnerships between institutions in low- and middle-income countries (LMICs) and their counterparts in high-income countries (HICs) utilizing a multi-component model. We describe the initial experience of the Children's of Alabama (COA) Global Surgery Program partnership with multiple Vietnamese neurosurgical centers. METHODS: The training model developed by the COA Global Surgery Program utilizes three complementary and interdependent methods to expand neurosurgical capacity: in-country training, out-of-country training, and ongoing support and mentorship. Multiple Vietnamese hospital systems have participated in the partnership, including three hospitals in Hanoi and one hospital in Ho Chi Minh City. RESULTS: During the 7 years of the partnership, the COA and Viet Nam teams have collaborated on expanding pediatric neurosurgical care in numerous areas of clinical need including five subspecialized areas of pediatric neurosurgery: cerebrovascular, epilepsy, neuroendoscopy for hydrocephalus management, craniofacial, and neuro-oncology. CONCLUSION: Long-term partnerships between academic departments in LMICs and HICs focused on education and training are playing an increasingly important role in scaling up global surgical capacity. We believe that our multi-faceted approach consisting of in-country targeted hands-on training, out-of-country fellowship training at the mentor institution, and ongoing mentorship using telecollaboration and Internet-based tools is a viable and generalizable model for enhancing surgical capacity globally.


Subject(s)
Neurosurgery , Alabama , Child , Humans , Neurosurgeons , Neurosurgical Procedures , Vietnam
5.
J Neurosurg ; : 1-9, 2019 Jun 28.
Article in English | MEDLINE | ID: mdl-31252392

ABSTRACT

OBJECTIVE: Endoscopic resection of third-ventricle colloid cysts is technically challenging due to the limited dexterity and visualization provided by neuroendoscopic instruments. Extensive training and experience are required to master the learning curve. To improve the education of neurosurgical trainees in this procedure, a synthetic surgical simulator was developed and its realism, procedural content, and utility as a training instrument were evaluated. METHODS: The simulator was developed based on the neuroimaging (axial noncontrast CT and T1-weighted gadolinium-enhanced MRI) of an 8-year-old patient with a colloid cyst and hydrocephalus. Image segmentation, computer-aided design, rapid prototyping (3D printing), and silicone molding techniques were used to produce models of the skull, brain, ventricles, and colloid cyst. The cyst was filled with a viscous fluid and secured to the roof of the third ventricle. The choroid plexus and intraventricular veins were also included. Twenty-four neurosurgical trainees performed a simulated colloid cyst resection using a 30° angled endoscope, neuroendoscopic instruments, and image guidance. Using a 19-item feedback survey (5-point Likert scales), participants evaluated the simulator across 5 domains: anatomy, instrument handling, procedural content, perceived realism, and confidence and comfort level. RESULTS: Participants found the simulator's anatomy to be highly realistic (mean 4.34 ± 0.63 [SD]) and appreciated the use of actual instruments (mean 4.38 ± 0.58). The procedural content was also rated highly (mean 4.28 ± 0.77); however, the perceived realism was rated slightly lower (mean 4.08 ± 0.63). Participants reported greater confidence in their ability to perform an endoscopic colloid cyst resection after using the simulator (mean 4.45 ± 0.68). Twenty-three participants (95.8%) indicated that they would use the simulator for additional training. Recommendations were made to develop complex case scenarios for experienced trainees (normal-sized ventricles, choroid plexus adherent to cyst wall, bleeding scenarios) and incorporate advanced instrumentation such as side-cutting aspiration devices. CONCLUSIONS: A patient-specific synthetic surgical simulator for training residents and fellows in endoscopic colloid cyst resection was successfully developed. The simulator's anatomy, instrument handling, and procedural content were found to be realistic. The simulator may serve as a valuable educational tool to learn the critical steps of endoscopic colloid cyst resection, develop a detailed understanding of intraventricular anatomy, and gain proficiency with bimanual neuroendoscopic techniques.

6.
J Neurosurg Pediatr ; 22(2): 128-136, 2018 08.
Article in English | MEDLINE | ID: mdl-29856293

ABSTRACT

OBJECTIVE Endoscope-assisted repair of craniosynostosis is a safe and efficacious alternative to open techniques. However, this procedure is challenging to learn, and there is significant variation in both its execution and outcomes. Surgical simulators may allow trainees to learn and practice this procedure prior to operating on an actual patient. The purpose of this study was to develop a realistic, relatively inexpensive simulator for endoscope-assisted repair of metopic and sagittal craniosynostosis and to evaluate the models' fidelity and teaching content. METHODS Two separate, 3D-printed, plastic powder-based replica skulls exhibiting metopic (age 1 month) and sagittal (age 2 months) craniosynostosis were developed. These models were made into consumable skull "cartridges" that insert into a reusable base resembling an infant's head. Each cartridge consists of a multilayer scalp (skin, subcutaneous fat, galea, and periosteum); cranial bones with accurate landmarks; and the dura mater. Data related to model construction, use, and cost were collected. Eleven novice surgeons (residents), 9 experienced surgeons (fellows), and 5 expert surgeons (attendings) performed a simulated metopic and sagittal craniosynostosis repair using a neuroendoscope, high-speed drill, rongeurs, lighted retractors, and suction/irrigation. All participants completed a 13-item questionnaire (using 5-point Likert scales) to rate the realism and utility of the models for teaching endoscope-assisted strip suturectomy. RESULTS The simulators are compact, robust, and relatively inexpensive. They can be rapidly reset for repeated use and contain a minimal amount of consumable material while providing a realistic simulation experience. More than 80% of participants agreed or strongly agreed that the models' anatomical features, including surface anatomy, subgaleal and subperiosteal tissue planes, anterior fontanelle, and epidural spaces, were realistic and contained appropriate detail. More than 90% of participants indicated that handling the endoscope and the instruments was realistic, and also that the steps required to perform the procedure were representative of the steps required in real life. CONCLUSIONS Both the metopic and sagittal craniosynostosis simulators were developed using low-cost methods and were successfully designed to be reusable. The simulators were found to realistically represent the surgical procedure and can be used to develop the technical skills required for performing an endoscope-assisted craniosynostosis repair.


Subject(s)
Craniosynostoses/surgery , Models, Anatomic , Neuroendoscopy/methods , Brain/abnormalities , Brain/pathology , Child, Preschool , Computer Simulation , Craniosynostoses/diagnostic imaging , Humans , Imaging, Three-Dimensional , Male , Printing, Three-Dimensional , Skull/abnormalities , Skull/pathology , Tomography Scanners, X-Ray Computed
7.
Oper Neurosurg (Hagerstown) ; 13(1): 60-68, 2017 02 01.
Article in English | MEDLINE | ID: mdl-28931248

ABSTRACT

BACKGROUND: Growing demand for transparent and standardized methods for evaluating surgical competence prompted the construction of the Neuro-Endoscopic Ventriculostomy Assessment Tool (NEVAT). OBJECTIVE: To provide validity evidence of the NEVAT by reporting on the tool's internal structure and its relationship with surgical expertise during simulation-based training. METHODS: The NEVAT was used to assess performance of trainees and faculty at an international neuroendoscopy workshop. All participants performed an endoscopic third ventriculostomy (ETV) on a synthetic simulator. Participants were simultaneously scored by 2 raters using the NEVAT procedural checklist and global rating scale (GRS). Evidence of internal structure was collected by calculating interrater reliability and internal consistency of raters' scores. Evidence of relationships with other variables was collected by comparing the ETV performance of experts, experienced trainees, and novices using Jonckheere's test (evidence of construct validity). RESULTS: Thirteen experts, 11 experienced trainees, and 10 novices participated. The interrater reliability by the intraclass correlation coefficient for the checklist and GRS was 0.82 and 0.94, respectively. Internal consistency (Cronbach's α) for the checklist and the GRS was 0.74 and 0.97, respectively. Median scores with interquartile range on the checklist and GRS for novices, experienced trainees, and experts were 0.69 (0.58-0.86), 0.85 (0.63-0.89), and 0.85 (0.81-0.91) and 3.1 (2.5-3.8), 3.7 (2.2-4.3) and 4.6 (4.4-4.9), respectively. Jonckheere's test showed that the median checklist and GRS score increased with performer expertise ( P = .04 and .002, respectively). CONCLUSION: This study provides validity evidence for the NEVAT to support its use as a standardized method of evaluating neuroendoscopic competence during simulation-based training.


Subject(s)
Clinical Competence , Educational Measurement/methods , Internship and Residency/methods , Neurology/education , Simulation Training/methods , Ventriculostomy/methods , Educational Measurement/standards , Female , Humans , Male , Reproducibility of Results , Statistics, Nonparametric
8.
Oper Neurosurg (Hagerstown) ; 13(1): 89-95, 2017 02 01.
Article in English | MEDLINE | ID: mdl-28931258

ABSTRACT

BACKGROUND: The relative educational benefits of virtual reality (VR) and physical simulation models for endoscopic third ventriculostomy (ETV) have not been evaluated "head to head." OBJECTIVE: To compare and identify the relative utility of a physical and VR ETV simulation model for use in neurosurgical training. METHODS: Twenty-three neurosurgical residents and 3 fellows performed an ETV on both a physical and VR simulation model. Trainees rated the models using 5-point Likert scales evaluating the domains of anatomy, instrument handling, procedural content, and the overall fidelity of the simulation. Paired t tests were performed for each domain's mean overall score and individual items. RESULTS: The VR model has relative benefits compared with the physical model with respect to realistic representation of intraventricular anatomy at the foramen of Monro (4.5, standard deviation [SD] = 0.7 vs 4.1, SD = 0.6; P = .04) and the third ventricle floor (4.4, SD = 0.6 vs 4.0, SD = 0.9; P = .03), although the overall anatomy score was similar (4.2, SD = 0.6 vs 4.0, SD = 0.6; P = .11). For overall instrument handling and procedural content, the physical simulator outperformed the VR model (3.7, SD = 0.8 vs 4.5; SD = 0.5, P < .001 and 3.9; SD = 0.8 vs 4.2, SD = 0.6; P = .02, respectively). Overall task fidelity across the 2 simulators was not perceived as significantly different. CONCLUSION: Simulation model selection should be based on educational objectives. Training focused on learning anatomy or decision-making for anatomic cues may be aided with the VR simulation model. A focus on developing manual dexterity and technical skills using endoscopic equipment in the operating room may be better learned on the physical simulation model.


Subject(s)
Clinical Competence , Endoscopy/education , Internship and Residency , Neurosurgery/education , Ventriculostomy/education , Virtual Reality , Endoscopy/methods , Fellowships and Scholarships , Female , Humans , Male
9.
World Neurosurg ; 97: 750.e1-750.e3, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27794514

ABSTRACT

BACKGROUND: Foix-Alajouanine syndrome is defined as acute neurologic deterioration in the setting of a spinal dural arteriovenous fistula. CASE DESCRIPTION: This case report on a young patient with an unusual clinical onset of Foix-Alajouanine syndrome coincidentally occurring after his outpatient clinic appointment illustrates how prompt surgical treatment can result in rapid recovery of neurologic function despite preoperative paraplegia. CONCLUSIONS: Venous hypertension with subsequent rapid resolution after surgical treatment is the pathophysiological mechanism underlying a dural arteriovenous fistula, in contrast to historical views suggesting that these lesions result from irreversible venous thrombosis, resulting in necrotic myelopathy.


Subject(s)
Central Nervous System Vascular Malformations/diagnosis , Central Nervous System Vascular Malformations/surgery , Paraplegia/diagnostic imaging , Paraplegia/prevention & control , Spinal Cord Diseases/diagnosis , Spinal Cord Diseases/surgery , Adult , Diagnosis, Differential , Humans , Male , Neurosurgical Procedures/methods , Syndrome
10.
Med Educ ; 50(9): 955-68, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27562895

ABSTRACT

CONTEXT: Fidelity is widely viewed as an important element of simulation instructional design based on its purported relationship with transfer of learning. However, higher levels of fidelity may increase task complexity to a point at which novices' cognitive resources become overloaded. OBJECTIVES: In this experiment, we investigate the effects of variations in task complexity on novices' cognitive load and learning during simulation-based procedural skills training. METHODS: Thirty-eight medical students were randomly assigned to simulation training on a simple or complex lumbar puncture (LP) task. Participants completed four practice trials on this task (skill acquisition). After 10 days of rest, all participants completed one additional trial on their assigned task (retention) and one trial on a 'very complex' simulation designed to be similar to the complex task (transfer). We assessed LP performance and cognitive load on each trial using multiple measures. RESULTS: In both groups, LP performance improved significantly during skill acquisition (p ≤ 0.047, f = 0.29-0.96) and was maintained at retention. The simple task group demonstrated superior performance compared with the complex task group throughout these phases (p ≤ 0.002, d = 1.13-2.31). Cognitive load declined significantly in the simple task group (p < 0.009, f = 0.48-0.76), but not in the complex task group during skill acquisition, and remained lower at retention (p ≤ 0.024, d = 0.78-1.39). Between retention and transfer, LP performance declined and cognitive load increased in the simple task group, whereas both remained stable in the complex task group. At transfer, no group differences were observed in LP performance and cognitive load, except that the simple task group made significantly fewer breaches of sterility (p = 0.023, d = 0.80). CONCLUSIONS: Reduced task complexity was associated with superior LP performance and lower cognitive load during skill acquisition and retention, but mixed results on transfer to a more complex task. These results indicate that task complexity is an important factor that may mediate (via cognitive overload) the relationship between instructional design elements (e.g. fidelity) and simulation-based learning outcomes.


Subject(s)
Clinical Competence , Cognition , Simulation Training/methods , Task Performance and Analysis , Education, Medical, Undergraduate , Female , Humans , Learning , Male , Students, Medical , Surveys and Questionnaires , Young Adult
11.
Perspect Med Educ ; 4(6): 344-348, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26490056

ABSTRACT

Theory-based instructional design is a top priority in medical education. The goal of this Show and Tell article is to present our theory-driven approach to the design of instruction for clinical educators. We adopted cognitive load theory as a framework to design and evaluate a series of professional development workshops that were delivered at local, national and international academic conferences in 2014. We used two rating scales to measure participants' cognitive load. Participants also provided narrative comments as to how the workshops could be improved. Cognitive load ratings from 59 participants suggested that the workshop design optimized learning by managing complexity for different levels of learners (intrinsic load), stimulating cognitive processing for long-term memory storage (germane load), and minimizing irrelevant distracters (extraneous load). Narrative comments could also be classified as representing intrinsic, extraneous, or germane load, which provided specific directions for ongoing quality improvement. These results demonstrate that a cognitive load theory approach to workshop design and evaluation is feasible and useful in the context of medical education.

12.
Med Educ ; 49(8): 815-27, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26152493

ABSTRACT

CONTEXT: Interest in applying cognitive load theory in health care simulation is growing. This line of inquiry requires measures that are sensitive to changes in cognitive load arising from different instructional designs. Recently, mental effort ratings and secondary task performance have shown promise as measures of cognitive load in health care simulation. OBJECTIVES: We investigate the sensitivity of these measures to predicted differences in intrinsic load arising from variations in task complexity and learner expertise during simulation-based surgical skills training. METHODS: We randomly assigned 28 novice medical students to simulation training on a simple or complex surgical knot-tying task. Participants completed 13 practice trials, interspersed with computer-based video instruction. On trials 1, 5, 9 and 13, knot-tying performance was assessed using time and movement efficiency measures, and cognitive load was assessed using subjective rating of mental effort (SRME) and simple reaction time (SRT) on a vibrotactile stimulus-monitoring secondary task. RESULTS: Significant improvements in knot-tying performance (F(1.04,24.95)  = 41.1, p < 0.001 for movements; F(1.04,25.90)  = 49.9, p < 0.001 for time) and reduced cognitive load (F(2.3,58.5)  = 57.7, p < 0.001 for SRME; F(1.8,47.3)  = 10.5, p < 0.001 for SRT) were observed in both groups during training. The simple-task group demonstrated superior knot tying (F(1,24)  = 5.2, p = 0.031 for movements; F(1,24)  = 6.5, p = 0.017 for time) and a faster decline in SRME over the first five trials (F(1,26)  = 6.45, p = 0.017) compared with their peers. Although SRT followed a similar pattern, group differences were not statistically significant. CONCLUSIONS: Both secondary task performance and mental effort ratings are sensitive to changes in intrinsic load among novices engaged in simulation-based learning. These measures can be used to track cognitive load during skills training. Mental effort ratings are also sensitive to small differences in intrinsic load arising from variations in the physical complexity of a simulation task. The complementary nature of these subjective and objective measures suggests their combined use is advantageous in simulation instructional design research.


Subject(s)
Cognition , General Surgery/education , Simulation Training/methods , Task Performance and Analysis , Adult , Computer-Assisted Instruction , Female , Humans , Male , Ontario , Prospective Studies , Psychological Theory , Students, Medical
13.
Childs Nerv Syst ; 31(8): 1247-59, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25930722

ABSTRACT

PURPOSE: This study aims to develop and establish the content validity of multiple expert rating instruments to assess performance in endoscopic third ventriculostomy (ETV), collectively called the Neuro-Endoscopic Ventriculostomy Assessment Tool (NEVAT). METHODS: The important aspects of ETV were identified through a review of current literature, ETV videos, and discussion with neurosurgeons, fellows, and residents. Three assessment measures were subsequently developed: a procedure-specific checklist (CL), a CL of surgical errors, and a global rating scale (GRS). Neurosurgeons from various countries, all identified as experts in ETV, were then invited to participate in a modified Delphi survey to establish the content validity of these instruments. In each Delphi round, experts rated their agreement including each procedural step, error, and GRS item in the respective instruments on a 5-point Likert scale. RESULTS: Seventeen experts agreed to participate in the study and completed all Delphi rounds. After item generation, a total of 27 procedural CL items, 26 error CL items, and 9 GRS items were posed to Delphi panelists for rating. An additional 17 procedural CL items, 12 error CL items, and 1 GRS item were added by panelists. After three rounds, strong consensus (>80% agreement) was achieved on 35 procedural CL items, 29 error CL items, and 10 GRS items. Moderate consensus (50-80% agreement) was achieved on an additional 7 procedural CL items and 1 error CL item. The final procedural and error checklist contained 42 and 30 items, respectively (divided into setup, exposure, navigation, ventriculostomy, and closure). The final GRS contained 10 items. CONCLUSIONS: We have established the content validity of three ETV assessment measures by iterative consensus of an international expert panel. Each measure provides unique assessment information and thus can be used individually or in combination, depending on the characteristics of the learner and the purpose of the assessment. These instruments must now be evaluated in both the simulated and operative settings, to determine their construct validity and reliability. Ultimately, the measures contained in the NEVAT may prove suitable for formative assessment during ETV training and potentially as summative assessment measures during certification.


Subject(s)
Clinical Competence , Reproducibility of Results , Ventriculostomy/methods , Ventriculostomy/standards , Humans , Online Systems , Surveys and Questionnaires , Third Ventricle/surgery
14.
Med Educ ; 49(6): 576-88, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25989406

ABSTRACT

OBJECTIVE: The aim of this study was to assess the feasibility of incorporating the Delphi process within the simplifying conditions method (SCM) described in elaboration theory (ET) to identify conditions impacting the complexity of procedural skills for novice learners. METHODS: We generated an initial list of conditions impacting the complexity of lumbar puncture (LP) from key informant interviews (n = 5) and a literature review. Eighteen clinician-educators from six different medical specialties were subsequently recruited as expert panellists. Over three Delphi rounds, these panellists rated: (i) their agreement with the inclusion of the simple version of the conditions in a representative ('epitome') training scenario, and (ii) how much the inverse (complex) version increases LP complexity for a novice. Cronbach's α-values were used to assess inter-rater agreement. RESULTS: All panellists completed Rounds 1 and 2 of the survey and 17 completed Round 3. In Round 1, Cronbach's α-values were 0.89 and 0.94 for conditions that simplify and increase LP complexity, respectively; both values increased to 0.98 in Rounds 2 and 3. With the exception of 'high CSF (cerebral spinal fluid) pressure', panellists agreed with the inclusion of all conditions in the simplest (epitome) training scenario. Panellists rated patient movement, spinal anatomy, patient cooperativeness, body habitus, and the presence or absence of an experienced assistant as having the greatest impact on the complexity of LP. CONCLUSIONS: This study demonstrated the feasibility of using expert consensus to establish conditions impacting the complexity of procedural skills, and the benefits of incorporating the Delphi method into the SCM. These data can be used to develop and sequence simulation scenarios in a progressively challenging manner. If the theorised learning gains associated with ET are realised, the methods described in this study may be applied to the design of simulation training for other procedural and non-procedural skills, thereby advancing the agenda of theoretically based instruction design in health care simulation.


Subject(s)
Clinical Competence/standards , Delphi Technique , Models, Educational , Simulation Training/methods , Adult , Feasibility Studies , Humans , Spinal Puncture/standards
15.
Adv Health Sci Educ Theory Pract ; 20(5): 1237-53, 2015 Dec.
Article in English | MEDLINE | ID: mdl-25761454

ABSTRACT

As interest in applying cognitive load theory (CLT) to the study and design of pedagogic and technological approaches in healthcare simulation grows, suitable measures of cognitive load (CL) are needed. Here, we report a two-phased study investigating the sensitivity of subjective ratings of mental effort (SRME) and secondary-task performance (signal detection rate, SDR and recognition reaction time, RRT) as measures of CL. In phase 1 of the study, novice learners and expert surgeons attempted a visual-monitoring task under two conditions: single-task (monitoring a virtual patient's heart-rate) and dual-task (tying surgical knots on a bench-top simulator while monitoring the virtual patient's heart-rate). Novices demonstrated higher mental effort and inferior secondary-task performance on the dual-task compared to experts (RRT 1.76 vs. 0.73, p = 0.012; SDR 0.27 vs. 0.97, p < 0.001; SRME 7.75 vs. 2.80, p < 0.001). Similarly, secondary task performance deteriorated from baseline to dual-task among novices (RRT 0.63 vs. 1.76 s, p < 0.006 and SDR 1.00 vs. 0.27, p < 0.001), but not experts (RRT 0.63 vs. 0.73 s, p = 0.124 and SDR 1.00 vs. 0.97, p = 0.178). In phase 2, novices practiced surgical knot-tying on the bench top simulator during consecutive dual-task trials. A significant increase in SDR (F(9,63) = 6.63, p < 0.001, f = 0.97) and decrease in SRME (F(9,63) = 9.39, p < 0.001, f = 1.04) was observed during simulation training, while RRT did not change significantly (F(9,63) = 1.18, p < 0.32, f = 0.41). The results suggest subjective ratings and dual-task performance can be used to track changes in CL among novices, particularly in early phases of simulation-based skills training. The implications for measuring CL in simulation instructional design research are discussed.


Subject(s)
Clinical Competence , Cognition , Psychomotor Performance/physiology , Students, Medical , Task Performance and Analysis , Education, Medical, Undergraduate/methods , Humans , Learning , Models, Psychological , Monitoring, Physiologic , Reaction Time , Simulation Training , Suture Techniques
16.
Can J Neurol Sci ; 42(1): 17-24, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25563071

ABSTRACT

BACKGROUND: Residents must develop a diverse range of skills in order to practice neurosurgery safely and effectively. The purpose of this study was to identify the foundational skills required for neurosurgical trainees as they transition from medical school to residency. METHODS: Based on the CanMEDS competency framework, a web-based survey was distributed to all Canadian academic neurosurgical centers, targeting incoming and current PGY-1 neurosurgical residents as well as program directors. Using Likert scale and free-text responses, respondents rated the importance of various cognitive (e.g. management of raised intracranial pressure), technical (e.g. performing a lumbar puncture) and behavioral skills (e.g. obtaining informed consent) required for a PGY-1 neurosurgical resident. RESULTS: Of 52 individuals contacted, 38 responses were received. Of these, 10 were from program directors (71%), 11 from current PGY-1 residents (58%) and 17 from incoming PGY-1 residents (89%). Respondents emphasized operative skills such as proper sterile technique and patient positioning; clinical skills such as lesion localization and interpreting neuro-imaging; management skills for common scenarios such as raised intracranial pressure and status epilepticus; and technical skills such as lumbar puncture and external ventricular drain placement. Free text answers were concordant with the Likert scale results. DISCUSSION: We surveyed Canadian neurosurgical program directors and PGY-1 residents to identify areas perceived as foundational to neurosurgical residency education and training. This information is valuable for evaluating the appropriateness of a training program's goals and objectives, as well as for generating a national educational curriculum for incoming PGY-1 residents.


Subject(s)
Clinical Competence/standards , Educational Measurement/methods , Internship and Residency/standards , Needs Assessment , Neurosurgery/education , Adult , Canada , Female , Humans , Male , Neurosurgery/psychology , Surveys and Questionnaires
17.
Can J Neurol Sci ; 42(1): 25-33, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25573052

ABSTRACT

BACKGROUND: Transitioning from medical school to residency is difficult and stressful, necessitating innovation in easing this transition. In response, a Canadian neurosurgical Rookie Camp was designed and implemented to foster acquisition of technical, cognitive and behavioral skills among incoming Canadian post graduate year one (PGY-1) neurosurgery residents. METHODS: The inaugural Rookie Camp was held in July 2012 in Halifax. The curriculum was developed based on a national needs-assessment and consisted of a pre-course manual, 7 case-based stations, 4 procedural skills stations and 2 group discussions. The content was clinically focused, used a variety of teaching methods, and addressed multiple CanMEDS competencies. Evaluation included participant and faculty surveys and a pre-course, post-course, and 3-month retention knowledge test. RESULTS: 17 of 23 PGY-1 Canadian neurosurgical residents participated in the Camp. All agreed the course content was relevant for PGY-1 training and the experience prepared them for residency. All participants would recommend the course to future neurosurgical residents. A statistically significant improvement was observed in knowledge related to course content (F(2,32) = 7.572, p<0.002). There were no significant differences between post-test and retention-test scores at three months. CONCLUSION: The inaugural Canadian Neurosurgery Rookie Camp for PGY-1 residents was successfully delivered, with engagement from participants, training programs, the Canadian Neurosurgical Society, and the Royal College. In addition to providing fundamental knowledge, which was shown to be retained, the course eased junior residents' transition to residency by fostering camaraderie and socialization within the specialty.


Subject(s)
Education, Medical, Graduate/methods , Internship and Residency , Neurosurgery/education , Neurosurgical Procedures/methods , Adult , Canada , Clinical Competence/standards , Curriculum , Education, Medical, Graduate/standards , Female , Humans , Internship and Residency/methods , Internship and Residency/standards , Knowledge of Results, Psychological , Male , Neurosurgical Procedures/standards
18.
Can J Neurol Sci ; 41(6): 721-8, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25385347

ABSTRACT

BACKGROUND: Postgraduate neurosurgical education is undergoing significant reform, including transition to a competency-based training model. To support these efforts, the purpose of this study was to determine neurosurgical graduates' and program directors' (PDs) opinions about graduates' level of competence in reference to the 2010 Royal College Objectives of Training in Neurosurgery. METHODS: An electronic survey was distributed to Canadian neurosurgery PDs and graduates from 2011. The questionnaire addressed graduates' abilities in nonprocedural knowledge and skills, CanMEDS roles, proficiency with core neurosurgical procedures and knowledge of complex neurosurgical techniques. RESULTS: Thirteen of 22 (59%) graduate and 17/25 (65%) PD surveys were completed. There were no significant differences between PD and graduate responses. Most respondents agreed that these graduates possess the knowledge and skills expected of an independently practicing neurosurgeon across current objectives of training. A small proportion felt some graduates did not achieve this level of proficiency on specific vascular, functional, peripheral nerve and endoscopic procedures. This was partially attributed to limited exposure to these procedures during training and perceptions that some techniques required fellowship-level training. CONCLUSIONS: Graduating neurosurgical residents are perceived to possess a high level of proficiency in the majority of neurosurgical practice domains. Inadequate exposure during training or a perception that subspecialists should perform some procedures may contribute to cases where proficiency is not as high. The trends identified in this study could be monitored on an ongoing basis to provide supplemental data to guide curricular decisions in Canadian neurosurgical training.


Subject(s)
Clinical Competence/standards , Internship and Residency/standards , Neurosurgery/education , Neurosurgery/standards , Physician Executives/standards , Surveys and Questionnaires , Adult , Cohort Studies , Female , Humans , Male
19.
Simul Healthc ; 9(4): 249-59, 2014 Aug.
Article in English | MEDLINE | ID: mdl-25090169

ABSTRACT

SUMMARY STATEMENT: Presently, health care simulation research is largely conducted on a study-by-study basis. Although such "project-based" research generates a plethora of evidence, it can be chaotic and contradictory. A move toward sustained, thematic, theory-based programs of research is necessary to advance knowledge in the field. Recognizing that simulation is a complex intervention, we present a framework for developing research programs in simulation-based education adapted from the Medical Research Council (MRC) guidance. This framework calls for an iterative approach to developing, refining, evaluating, and implementing simulation interventions. The adapted framework guidance emphasizes: (1) identification of theory and existing evidence; (2) modeling and piloting interventions to clarify active ingredients and identify mechanisms linking the context, intervention, and outcomes; and (3) evaluation of intervention processes and outcomes in both the laboratory and real-world setting. The proposed framework will aid simulation researchers in developing more robust interventions that optimize simulation-based education and advance our understanding of simulation pedagogy.


Subject(s)
Computer Simulation/trends , Health Occupations/education , Health Services Research/trends , Guidelines as Topic , Humans , Program Development
20.
Adv Health Sci Educ Theory Pract ; 19(2): 273-80, 2014 May.
Article in English | MEDLINE | ID: mdl-23559018

ABSTRACT

Rapid technological advances and concern for patient safety have increased the focus on simulation as a pedagogical tool for educating health care providers. To date, simulation research scholarship has focused on two areas; evaluating instructional designs of simulation programs, and the integration of simulation into a broader educational context. However, these two categories of research currently exist under a single label-Simulation-Based Medical Education. In this paper we argue that introducing a more refined nomenclature within which to frame simulation research is necessary for researchers, to appropriately design research studies and describe their findings, and for end-point users (such as program directors and educators), to more appropriately understand and utilize this evidence.


Subject(s)
Education, Medical , Terminology as Topic , User-Computer Interface , Humans , Research
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