Neurosurgical Residents Research Articles

Evaluating the efficacy of a cost-effective, fully three-dimensional-printed vertebra model for endoscopic spine surgery training for neurosurgical residents.

A fused deposition modeling three-dimensional (3D)-printed model of the L4-5 vertebra for lumbar discectomy was designed. The model included separately printed dura mater, spinal cord, ligamentum flavum, intervertebral disc (from thermoplastic polyurethane), and bony structures (from polylactic acid), and the material cost approximately US$ 1 per model. A simple plumbing endoscope was used for visualization. Dura mater injury was assessed by painting two layers on the dura mater, which peeled off with trauma. Endoscopic spine surgery is a subject of high interest in neurosurgery given its minimally invasive nature; however, it has a steep learning curve. This study evaluated the effectiveness of a cost-efficient 3D-printed model when teaching this technique to neurosurgery residents. Only a few studies have investigated the efficacy of such a model. Eight residents with >2 years of training participated. Residents performed the procedure bilaterally and twice at 1-week intervals. From the 32 surgeries, four were excluded because of facet removal (as it widened the surgical corridor), leaving 28 surgeries for analysis. Initial surgeries demonstrated a mean operation time of 21 minutes 18 seconds (standard deviation [SD], 2 minutes 32 seconds), which improved to a mean of 6 minutes 45 seconds (SD, 37 seconds) in the fourth surgery (F(3, 17)=19.18, p <0.0001), demonstrating a significant reduction in surgical time over successive surgeries. The median area with the paint removed decreased, from 161.80 (85.55-217.83) to 95.13 mm2 (12.62-160.54), (F(2.072, Inf)=2.04, p =0.128); however, this was not significant. Resident feedback indicated high satisfaction with the educational value of the model. The developed fully 3D-printed model provides a viable and scalable option for neurosurgical training programs, enhancing the learning experience while maintaining low costs. This model may be an excellent stepping stone for learning lumbar spine endoscopy, acclimating to the two-dimensional view, progressing to cadaver models, and, eventually, independent surgery.

Improving Successful Cannulation of External Ventricular Drain: 3D-Printed Surgical Guide for Inexperienced Neurosurgeons

ObjectiveExternal Ventricular Drain (EVD) is a fundamental neurosurgical procedure that is commonly performed by junior neurosurgeons. Expedient, successful cannulation of the ventricles can be lifesaving. Yet, the free-hand technique of EVD insertion is associated with significant mal-positioning rates. This study aims to improve EVD placement by junior neurosurgeons with the aid of a customized 3D printed surgical guide. MethodsA 3D printed surgical guide was developed and customized to our institution’s EVD insertion procedure. First year neurosurgical residents were taught how to perform pre-operative trajectory planning based on coronal brain images and how to use the surgical guide during standard EVD insertion procedure. Number of passes, accuracy of EVD placement, operative complications, need for revision, and surgeon’s experience with the guide were recorded. Results14 patients underwent guide-assisted EVD insertion by first year neurosurgical residents. Significantly, 6 (43%) patients had ventricular anatomy distorted by midline shift. All surgeons achieved successful ventricular cannulation using the EVD guide on first pass (100%). 13 out of 14 (93%) of the guide-assisted EVDs were optimally placed (Karkarla Grade 1). 1 (7%) guide-assisted EVD was suboptimally placed (Karkarla Grade 2). There was no intra or post-operative complication and there was no EVD revision. ConclusionsFor inexperienced surgeons, the 3D printed EVD guide can improve ventricular cannulation even in cases of altered ventricular anatomy. The benefit of 3D printing would also allow the guide to be widely adopted by other institutions worldwide.

Gender Differences in Operative Autonomy Using the Surgical Autonomy Program: A Multicenter Study.

Background The proportion of women surgeons is increasing, but studies show that women in surgical residency are granted less autonomy than men. Objective We utilized the Surgical Autonomy Program (SAP), an educational framework, to evaluate gender differences in self-reported autonomy, attending-reported autonomy, and operative feedback among US neurosurgical residents. Methods The SAP tracks resident progression and guides teaching in neurosurgery. Surgeries are divided into zones of proximal development (opening, exposure, critical portion, and closure). Postoperatively, resident autonomy is rated on a 4-point scale by the resident and the attending for each part of the case, or zone. We utilized data from July 2017 to February 2024 from 8 institutions. Ordinal regression was used to evaluate the odds of self- and attending-evaluated autonomy, accounting for gender, training year, case difficulty, and institution. Differences between attending assessment and self-assessment were calculated across time. Chi-square analyses were used to measure any differences in feedback given to men and women. Results From 128 residents (32 women, 25%), 11894 cases were included. Women were granted less autonomy (OR 0.81; 95% CI 0.74-0.89; P<.001) and self-evaluated as having less autonomy (OR 0.73; 95% CI 0.67-0.80; P<.001). The odds of women operating at higher autonomy were similar to the odds of operating on a hard case compared to average difficulty (OR 0.77; 95% CI 0.71-0.84; P<.001). Men's and women's self-assessment became closer to attending assessment over time, with women improving more quickly for the critical portions of surgeries. Women residents received meaningful postoperative feedback on fewer cases (women: 74.2%, men: 80.5%; X2=31.929; P<.001). Conclusions Women operated with lower autonomy by both attending and self-assessment, but the assessment gap between genders decreased over time. Women also received less feedback from their attendings.

Neurosurgical Residency Training at Veterans Affairs Medical Centers, the Resident Perspective.

Department of Veteran's Affairs (VA) Medical Centers play a crucial role in training neurosurgery residents. Although previous studies have examined the impact of VA rotations from the attending perspective, the resident experience remains unexplored. We present a national survey of neurosurgery residents to assess their perceptions of VA rotations, focusing on operative experience, call burden, longitudinal patient care experiences, and overall strengths and limitations. A 33-question survey was distributed by email to all neurosurgery residents who had previously completed a VA rotation within the past 7 years. Responses were received from 77 residents, representing 36 out of 40 neurosurgical residency programs with an active VA rotation. Most residents (79.2%) found their VA rotations adequate in length, having spent a median of 5 months at the VA. Residents completed an average of 11.7 (SD 7.2) cases per month while at the VA, including 8.9 (SD 5.5) spine, 1.7 (SD 2.0) cranial, and 1.4 (SD 1.6) peripheral nerve cases. Many residents reported completing a greater proportion of spine and peripheral nerve cases at the VA compared with their primary clinical sites. Across all postgraduate years, residents felt that the VA offered increased operative autonomy (79.0% agreement) at the expense of total operative volume (98.7% agreement) and complexity (81.9% agreement). Importantly, 94.8% of residents participated in longitudinal patient care experiences, and 59.7% followed all patients longitudinally. The resident experience at the VA varies, presenting both strengths and limitations. Addressing these factors could enhance the overall effectiveness of VA rotations in neurosurgical training programs in the future.

Development and assessment of case-specific physical and augmented reality simulators for intracranial aneurysm clipping

BackgroundMicrosurgical clipping is a delicate neurosurgical procedure used to treat complex Unruptured Intracranial Aneurysms (UIAs) whose outcome is dependent on surgeon’s experience. Simulations are emerging as excellent complements to standard training, but their adoption is limited by the realism they provide. The aim of this study was to develop and validate a microsurgical clipping simulator platform.MethodsPhysical and holographic simulators of UIA clipping have been developed. The physical phantom consisted of a 3D printed hard skull and five (n = 5) rapidly interchangeable, perfused and fluorescence compatible 3D printed aneurysm silicone phantoms. The holographic clipping simulation included a real-time finite-element-model of the aneurysm sac, allowing interaction with a virtual clip and its occlusion. Validity, usability, usefulness and applications of the simulators have been assessed through clinical scores for aneurysm occlusion and a questionnaire study involving 14 neurosurgical residents (R) and specialists (S) for both the physical (p) and holographic (h) simulators by scores going from 1 (very poor) to 5 (excellent).ResultsThe physical simulator allowed to replicate successfully and accurately the patient-specific anatomy. UIA phantoms were manufactured with an average dimensional deviation from design of 0.096 mm and a dome thickness of 0.41 ± 0.11 mm. The holographic simulation executed at 25–50 fps allowing to gain unique insights on the anatomy and testing of the application of several clips without manufacturing costs. Aneurysm closure in the physical model evaluated by fluorescence simulation and post-operative CT revealed Raymond 1 (full) occlusion respectively in 68.89% and 73.33% of the cases. For both the simulators content validity, construct validity, usability and usefulness have been observed, with the highest scores observed in clip selection usefulness Rp=4.78, Sp=5.00 and Rh=4.00, Sh=5.00 for the printed and holographic simulators.ConclusionsBoth the physical and the holographic simulators were validated and resulted usable and useful in selecting valid clips and discarding unsuitable ones. Thus, they represent ideal platforms for realistic patient-specific simulation-based training of neurosurgical residents and hold the potential for further applications in preoperative planning.

Geographical Distribution of Osteopathic Neurosurgery Residents.

The neurosurgery residency match has grown increasingly competitive, especially for osteopathic (DO) medical students, amidst the transition to a single accreditation system in 2020. This shift required former American Osteopathic Association (AOA) programs to apply for Accreditation Council for Graduate Medical Education (ACGME) accreditation, leading to a notable reduction in programs with a history of accepting DO applicants. This study aims to explore both potential geographical trends in residency match among recent DO neurosurgical residents and in the number of DO neurosurgical residents pre- and post-ACGME merger. Neurosurgery residency programs during the 2023-2024 academic year were identified, and each program's residents, resident degrees, and resident post-graduate years were collected from residency programs' websites. Descriptive statistics were used to analyze the ratios of DO and allopathic (MD) residents, while regression analyses were used to determine the trends in DO residents between 2017 and 2024. DO residents were also collated by state to observe their geographical distribution. A comprehensive cross-sectional analysis of 115 neurosurgery residency programs across the United States from 2016 to 2024 reveals a significant decrease in DO residents, from 14 in 2016 to four in 2024, with an average of six DO residents per year post-merger. A geographical heatmap analysis pinpointed New Jersey, Michigan, and California as states with the highest proportions and numbers of DO neurosurgery residents. These findings show the geographical distribution of DO neurosurgery residents in the US. Recognizing and understanding these geographical trends could be essential in the strategic application planning for DO candidates and the need for residency programs to reassess selection criteria to be more inclusive of DO applicants.

The Use of Augmented Reality as an Educational Tool in Minimally Invasive Transforaminal Lumbar Interbody Fusion.

One of the major challenges in training neurosurgical and orthopedic residents the technique for minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) is the lack of visualization of surgical landmarks (pedicle, pars, lamina). This is due to the limited access to the bony spine through a tubular retractor, in addition to a smaller working corridor or patient-specific factors such as bony overgrowth, disk space collapse, and listhesis. These factors increase the possibility for surgical error and prolonged surgery time. With augmented reality (AR), relevant surgical anatomy can be projected directly into the user's field of view through the microscope. The purpose of this study was to assess the utility, accuracy, efficiency, and precision of AR-guided MIS-TLIF and to determine its impact in spine surgery training. At 2 centers, 12 neurosurgical residents performed a one-level MIS-TLIF on a high-fidelity lumbar spine simulation model with and without AR projection into the microscope. For the MIS-TLIF procedures with AR, surgical landmarks were highlighted in different colors on preoperative image data. These landmarks were visualized in the spinal navigation application on the navigation monitor and in the microscope to confirm the relevant anatomy. Postprocedural surveys (National Aeronautics and Space Administration Task Load Index) were given to the residents. Twelve residents were included in this trial. AR-guided procedures had a consistent impact on resident anatomical orientation and workload experience. Procedures performed without AR had a significantly higher mental demand (P = .003) than with AR. Residents reported to a significantly higher rate that it was harder work for them to accomplish their level of performance without AR (P = .019). AR can bring a meaningful value in MIS teaching and training to confirm relevant anatomy in situations where the surgeon will have less direct visual access. AR used in surgical simulation can also speed the learning curve.

Pterional vs. lateral supraorbital approach in the management of middle cerebral artery aneurysms: insights from a phantom model study

The pterional approach has traditionally been employed for managing middle cerebral artery (MCA) aneurysms. With potential benefits like reduced surgical morbidity and improved postoperative recovery, the lateral supraorbital approach (LSO) should be considered individually based on aneurysm morphology, location and patient-specific variations of the MCA anatomy, which requires considerable technical expertise traditionally acquired through years of experience. The goal of this study was the development and evaluation of a novel phantom simulator in the context of clinical decision-making in the managmement of MCA aneurysms. For this purpose, high-fidelity simulators inclusive of MCA models with identical M1- and bifurcation aneurysms were manufactured employing 3D reconstruction techniques, additive manufacturing and rheological testings. Medical students, neurosurgical residents, and seasoned neurosurgeons (n = 22) tested and evaluated both approaches. Participants’ performances and progress over time were assessed based on objective metrics. The simulator received positive ratings in face and content validity, with mean scores of 4.9 out of 5, respectively. Objective evaluation demonstrated the model’s efficacy as a practical training tool, particularly among inexperienced participants. While requiring more technical expertise, results of the comparative analysis suggest that the LSO approach can improve clipping precision and outcome particularly in patients with shorter than average M1-segments. In conclusion, the employed methodology allowed a direct comparison of the pterional and LSO approaches, revealing comparable success rates via the LSO approach while reducing operation time and complication rate. Future research should aim to establish simulators in the context of clinical decision making.

Utilizing neuroimaging visualization technology to enhance standardized neurosurgical training for Traditional Chinese Medicine residents: A neuroanatomical education study

ObjectiveThis study aims to address the difficulties encountered by Traditional Chinese Medicine (TCM) students in learning neuroanatomy during clinical training by utilizing neuroimaging visualization technology. Methods81 students were divided into a control group (40 students) and an observation group (41 students). The control group followed traditional teaching methods as prescribed by the curriculum, while the observation group received additional training with the neuroimaging visualization software DSI Studio. This included whole-brain neural fiber reconstruction and cortical spinal tract evaluation in the context of stroke. Upon completion of the training, both groups were assessed on neuroanatomical theory, case analysis, neurological examination, and clinical skills. The teaching effectiveness was compared based on assessment results and feedback from questionnaires administered to the observation group. ResultsThe observation group significantly outperformed the control group in theoretical knowledge, case analysis, and physical examination (P < 0.05). Over 90 % of students in the observation group reported via questionnaire that the integration of neuroimaging visualization technology significantly enhanced their understanding of neuroanatomy and clinical reasoning skills. ConclusionThe clinical teaching approach augmented with neuroimaging visualization technology significantly improves the standardized training outcomes for TCM neurosurgical residents.

Microsurgical Anatomy of Middle Cerebral Artery in Northwest Indian Population: A Cadaveric Brain Dissection Study

AbstractThe introduction of cadaveric dissection of cerebral vasculature as a part of the neurosurgical training module would help the neurosurgical residents to understand the complex neuroanatomy of the brain vasculature and help gain confdence during the surgical procedure.To the best of our knowledge microsurgical anatomical studies of theMCA have not been done among the Northwest Indian population. Anatomical variations of MCA that have not been described before may come in as a surprise during any surgical intervention. Hence, we intend to record the anatomical variations of the MCA anatomy and its implications in contemporary vascular surgery and neurosurgical practice. The objective of this work was to study and compare the microsurgical anatomy and variations of MCA in Northwest Indian cadavers with the available literature.

3-Dimensional Printed Model of the Temporal Bone for Neurosurgical Training.

The development of neurosurgical skills stands out as a paramount objective for neurosurgery residents during their formative years. Mastery of intricate and complex procedures is a time-intensive process marked by a gradually ascending learning curve. Consequently, the study and simulation on surgical models assume significant importance. One of the most intricate neuroanatomical regions includes the petrous and mastoid portions of the temporal bone. These regions host critical, highly functional, and vital neurovascular structures, including the facial nerve, cochlea, semicircular canals, internal carotid artery, and middle ear. This fully open-source 3-dimensional (3D) model of the temporal bone, created for educational purposes, should be easily and economically reproducible using a 3D printer, offering all residents the opportunity to understand the spatial location, three-dimensional anatomical structures, and fundamental intricacies of mastoidectomy. A 3D model of the temporal bone was fabricated using a computed tomography (CT) scan derived from an actual human body. The CT scan of the model was meticulously juxtaposed with the reference sample CT scan. Neurosurgical residents were recruited as participants for this study. Each participant was tasked with executing a mastoidectomy on 2 separate occasions, with a 2-week interval between attempts. Throughout these sessions, various parameters, including the time taken for task completion, the volume of bone removal, and any potential complications, were systematically registered. The mean volume of bone removed increased by 34.5%, and the mean task time and the mean number of complications decreased by 10.3% and 25%, respectively, during the training. Engaging in training with cost-effective anatomical models constitutes a valuable tool for refining technical skills during residency. We posit that this type of model training should be incorporated as part of the trainee's curriculum during the residency program because of the myriad advantages evidenced by the findings of this study.

Transradial Angiography Skill Acquisition Using an Endovascular Simulation Program

BackgroundGiven the benefits of neuroendovascular simulation to resident education, this study aimed to assess the efficacy of simulation-based training for neuroendovascular intervention with primary and secondary catheters using a transradial approach (TRA). MethodsFive neurosurgical residents (PGY 1-3) from our institution enrolled in a standardized pilot training protocol. Trainees used the Mentice Visit G5 simulator with a type II arch using a right TRA. ResultsAll participants improved their total time to complete the task from the first trial to the last trial. Residents improved the overall time required to complete the task by 111.8 ± 57 seconds (52% improvement; p=0.012). Participants reported improved knowledge of Simmons catheter formation from 1.6 ± 0.8 to 2.8 ± 1 (p=0.035) and improved knowledge of transradial vessel selection technique from 1.6 ± 0.9 to 2.8 ± 1.1 (p=0.035). All residents were able to illustrate a bovine arch and types 1-3 arches post-simulation. Residents rated the simulation usefulness as 4.6 ± 0.548 (scale 1-5; not useful to essential) with 4 of the 5 residents (80%) identifying this exercise as essential. All residents rated the hands-on component of the training exercise as the most important. ConclusionsResidents demonstrated proficiency at Simmons catheter formation and vessel selection in a type II arch over a short time period (four attempts and < 1 hour total). Residents can use simulator-based training to increase their proficiency of vessel selection using a primary or secondary catheter for a TRA.

Assessment of High-fidelity Anatomical Models for Performing Pterional Approach: A Practical Clinic in American Association of Neurological Surgeons Meeting 2024

Over the last decade, simulation models have been increasingly applied as an adjunct for surgical training in neurosurgery. We aim through a practical course at a national neurosurgical conference to evaluate 3D non-cadaveric simulation models along with augmented reality for learning and practicing the pterional craniotomy approach among a wide variety of participants including medical students, neurosurgery residents, and attending neurosurgeons. Our course was conducted during an international neurosurgery meeting with 93 participants but the course surveys (pre- and post-course) were completed by 42 participants. Most participants were medical students (31; 73.8%). Participants with no experience (the majority) in cadaver lab dissections, craniotomy as first operator, and as second operator represented 12 (27.9%), 29 (69%), and 22 (52.4%), respectively. Participants with moderate experience in cadaver lab dissections were 23 (53.5%). Post-course survey respondents noted positive feedback in most items queried including enhancement of familiarity and acquiring skills, confidence with neurosurgery instruments, confidence with microscope, part of standard training, traditional training, and lifelong training. Simulation model combining augmented reality with physical simulation for hybrid experience can be a promising and valuable tool especially for medical students or early career neurosurgical residents.

Neurosurgery Residency Programs on Twitter (X): Current Use and Future Potential

Study DesignCross-sectional study ObjectivesTwitter (X) is increasingly utilized by medical residency programs to boost engagement and potentially enhance ranking. This study aims to evaluate the role of Twitter (X) in neurosurgery residency programs, assessing their online activity, followership, and content to identify current practices and potential improvements. MethodsWe identified 97/123 neurosurgery residency programs in the United States with Twitter accounts. Active accounts, posting in 2022 and 2023, were matched with the American Association of Neurological Surgeons (AANS) Neurosurgical Residency Training Program Directory. Tweets from January 2022 through June 2023 were categorized as original or retweets and further subcategorized based on content. Descriptive and correlation analyses were conducted. ResultsTwitter (X) accounts were found for 78.8% of accredited neurosurgery programs (n=97/123), with 68.3% active as of July 2023 (n=84/123). All active accounts amassed 167,068 followers. Among 5,612 tweets identified, 2,764 were original content and 2,848 were retweets. Tweets primarily focused on resident or program information (64.3%), research publications (32.0%), and conference participation (9.4%). Only 12.3% (n=341) of original tweets contained public medical information. A significant correlation (r = 0.493, p <0.001) was observed between Twitter (X) following and program ranking. ConclusionsThe majority of US neurosurgery residency programs actively use Twitter (X), primarily to showcase academic achievements and aid in recruitment. The correlation between Twitter following and program ranking suggests that online engagement reflects program visibility and impact, underscoring the importance of social media in program outreach and strategic management for maximizing program benefits.

An Analysis of the Relationship Between Female Faculty and Female Resident Representation in Neurosurgery Residency Programs

Promoting minorities within medical specialties has been postulated to be crucial to patient care and recruitment of diverse candidates. This concept has been suspected but not formally studied in the minority of women faculty and trainees in neurosurgery. We aimed to quantitatively investigate the postulated correlation relative to female representation in neurosurgery. Data obtained from accredited neurosurgery residency programs were reviewed. Data describing the percentage of female residents and 6 demographic and 14 program-specific variables were collected. All program websites were reviewed to assess percentages of female faculty and visible commitment to diversity in applicants, evident through communicated policies, statements, or initiatives. Included programs were defined as "low" or "high" percentage of female residents or faculty relative to the grouped median value for both categories; groups were assessed for significant differences. Percentages of female faculty and residents and program-communicated diversity initiatives were investigated for significant correlation. Female faculty and diversity data were available at 117 program sites; 81 programs reported female resident percentages. Analysis revealed a significant positive correlation between female faculty and female resident percentages. Programs with higher female resident percentages had higher levels of diversity in terms of race and ethnicity. No significant correlation was found between the percentage of female faculty or residents and a communicated diversity initiative. This study of current female representation in neurosurgery revealed a previously undocumented positive correlation between percentages of female faculty and female trainees. These data suggest a modifiable barrier to female entry into neurosurgical residency programs.

Senior Mentorship and Scholarly Success: Assessing Influences on Successful Neurosurgery Residency Applicant's H-Index

Research productivity is on the rise as neurosurgical residency positions become increasingly competitive. We explored the relationship between neurosurgical residency applicant's senior author's research productivity and matching into a neurosurgery residency program. A retrospective analysis of bibliometric data for applicants who matched into neurosurgery in 2022-2023 and their senior authors was conducted using Scopus. Logistic regression revealed a significant association between h-index values and top 40 match outcomes (P= 0.038). The maximum h-index of senior authors significantly predicted matches at top 40 programs (P=0.003). Affiliation with a top 40 medical school increased both applicant and senior author h-indices (P=0.05, P < 0.001 respectively). Linear regression of the maximum h-index of senior authors in preresidency publications explained 42% of this variability (P < 0.001). A multiple linear regression model incorporating this with publication number elucidated 69% of the variance in interns' h-index. Authorship data categorized as first, second, and third author positions showed 1847 first author, 1417second author, and 118 third author publications over 2-years. Applicants at top 40 residency programs had more first and second author publications compared to those from nontop 40 programs (P= 0.0158, P= 0.0275). There is a strong correlation between a neurosurgical applicant's academic output and that of their senior authors. The number of publications and the maximum h-index of senior authors significantly predict applicant h-indices. We also demonstrated that there is a significant difference in the academic productivity of applicants and senior authors of applicants who successfully match into a top 40 i(h)5 rated neurosurgical residency.

Enhancing the Evaluation System of Training Hospitals for Neurosurgical Residency Training and Education in South Korea : Striving for Balanced Participation and Differentiation.

The Korean Neurosurgical Society, with its 62 years of history, has witnessed substantial growth in the field of neurosurgery, producing over 3,400 neurosurgeons, establishing 12 divisions and 9 regional branches, and advancing in clinical management, diagnostic methods and academic research. Despite these developments, the regulations governing neurosurgical training and evaluation methods for training hospitals have remained largely unchanged, necessitating comprehensive revisions in response to evolving medical environments. To provide balanced participation opportunities for neurosurgery residents, the Korean Neurosurgical Society formed the Training Status Investigation Standard Change Task Force (TF Team) under the Training Education Committee. This paper presents the TF Team's findings and proposals for revising training status investigation standards and evaluation criteria. Through the processes including a lot of team meetings, workshops, education programs, official communications with 12 division societies, benchmarking from other societies and analysis of encrypted data from the past 5 years for neurosurgical training hospitals, the TF Team created a revised training status investigation proposal, supplemented main surgery criteria. And we applied this revised proposal to the training status investigation data collected from training hospitals in 2022 for simulation. We reduced the score for main surgeries to 10 points, introduced core competency surgery standards, allocating 5 points each for brain core competency surgery and spine and peripheral core competency surgery, for a total of 10 points. We also adjusted the major surgery score to 13 points, expanding the total surgery index score to 33 points. We introduced additional definitions for main surgeries in the areas of spine, pediatrics, and functional surgery. The equipment score was reduced from 17 points to 9 points. We specified minimum requirements for resident allocation eligibility, and if a hospital meets all of these criteria, they become eligible to apply for resident allocation. We introduced a new bonus point system for hospitals performing mechanical thrombectomy or stenting and peripheral nerve. The proposed revisions aim to improve the training and education of neurosurgical residents and overall neurosurgical care in Korea by creating a balanced and differentiated evaluation system for training hospitals. Further monitoring, communication, and adjustments are crucial for successful implementation.

The evolutional aspect of change in the training conditions of neurosurgical residents

Background: The Korean Neurosurgical Society’s 60th anniversary in 2022 compelled us to reflect on the changes within the education programs of neurosurgery residents. Traditional apprenticeship has witnessed a structural shift to manual-based education, and content has transitioned from time-based to competency-based education, driven further by the implementation of the 80-hour work-per-week regulation.Current Concepts: Despite reduced training hours, neurosurgery residents strive to gain more surgical participation and research opportunities while working 80 hours per week. To address this conflicting scenario, the Korean Neurosurgical Society implemented proactive measures to enhance resident education. This included the development of a competency-based training curriculum and guidelines for supervising physicians to prepare residents with the essential skills for independence. Additionally, evaluation guidelines and feedback mechanisms were established to provide objective assessments and facilitate self-improvement. Establishing operational guidelines and developing an e-portfolio would help minimize variations in educational effects among residents.Discussion and Conclusion: Failure to adapt to the changing environment, including the 80-hour work week, by maintaining outdated training methods would result in stagnation or a decline in the efficiency of resident education. Therefore, providing a unified educational curriculum and ensuring sustainable, high-quality training according to the evaluation systems of the Korean Neurosurgical Society is essential. This curriculum must be reviewed on an ongoing basis to recognize the society’s expertise and develop educational policies based on scientific evidence and the opinions of society members.

Under Pressure: Emotional Reactions to Stress of Neurosurgeons and Neurosurgical Trainees

Neurosurgeons demonstrate some of the highest levels of burnout among surgeons, yet little research has been done to understand the underlying stressors that neurosurgeons and trainees experience and the emotional responses to them. Our goal was to conduct a feasibility study identifying job stressors and emotional responses among neurosurgeons rather than generalize findings across the profession. Emphasizing a qualitative approach in this feasibility and descriptive study, we strategically selected a small sample of neurosurgical attendings, residents, and fellows at 2 United States academic neurosurgical departments to ensure an in-depth analysis laying the groundwork for future extensive research. Participants were asked to complete a questionnaire regarding work-related stressors and high- and low-arousal emotional responses to these stressors, as well as a standardized Depression, Anxiety, and Stress Scale. Both quantitative and qualitative analyses evaluating types of stressors and emotional responses reported were assessed based on participant training level. Participants identified 3 main stressors: 1) administrative deficiencies; 2) delivering bad news/saving lives; and 3) work-life balance. A low frequency of negative emotional responses was reported, but those reported were mainly high-arousal emotions. Limited prior training in coping strategies was also reported. We also found that residents, fellows, and faculty surgeons reported about work stressors and coping strategies differently. The results of our study provide an understanding of neurosurgical professionals' unique emotional landscape, emphasizing the need for reforms in administrative practices, enhanced, healthy coping strategies, and career stage-specific mental health support.

Virtual Reality vs Phantom Model: Benefits and Drawbacks of Simulation Training in Neurosurgery.

Traditional neurosurgical education has relied heavily on the Halstedian "see one, do one, teach one" approach which is increasingly perceived as inefficient in contemporary settings marked by a steady decline in surgical caseload. In recent years, simulation training has emerged as an effective and accessible training alternative. To date, however, there is no standardized criterion pertaining to the quality and implementation of simulators in neurosurgical education and training. This research aims to compare the efficacy of virtual reality (VR) and Phantom-based simulation training in the context of neurosurgical skill acquisition, with a focus on middle cerebral artery aneurysm clipping. An immersive VR clipping tool and a haptic clipping simulator incorporating 3-dimensional printing, additive manufacturing, and rheological analyses were developed. Twenty-two participants, comprising 12 medical students, 6 neurosurgical residents, and 4 experienced neurosurgeons, tested and evaluated both simulators for face and content validity. Construct and predictive validity of the simulators were assessed using an objective structured assessment scale for aneurysm clipping, measuring participants' performances and progress. Both modalities were deemed highly advantageous for educational purposes. Objective evaluations, however, revealed measurable differences in usability, efficacy, and transferability of the learned skills with VR excelling in procedural planning and visualization while Phantom simulation being noticeably superior in conveying surgical skills. Simulation training can accelerate the neurosurgical learning curve. The results of this study highlight the importance of establishing standardized criteria for the implementation and assessment of simulation modalities, ensuring consistent quality and efficacy in neurosurgical education.