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Recent evidence shows that seizures propagate primarily through supragranular cortical layers. To selectively modify these circuits, we developed a new technique using tightly focused, femtosecond infrared laser pulses to make as small as ~100 µm-wide subsurface cortical incisions surrounding an epileptic focus. We use this "laser scalpel" to produce subsurface cortical incisions selectively to supragranular layers surrounding an epileptic focus in an acute rodent seizure model. Compared with sham animals, these microtransections completely blocked seizure initiation and propagation in 1/3 of all animals. In the remaining animals, seizure frequency was reduced by 2/3 and seizure propagation reduced by 1/3. In those seizures that still propagated, it was delayed and reduced in amplitude. When the recording electrode was inside the partially isolated cube and the seizure focus was on the outside, the results were even more striking. In spite of these microtransections, somatosensory responses to tail stimulation were maintained but with reduced amplitude. Our data show that just a single enclosing wall of laser cuts limited to supragranular layers led to a significant reduction in seizure initiation and propagation with preserved cortical function. Modification of this concept may be a useful treatment for human epilepsy.
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Terapia por Láser/métodos , Microcirugia/métodos , Convulsiones/cirugía , Corteza Somatosensorial/cirugía , 4-Aminopiridina , Animales , Corteza Cerebral , Modelos Animales de Enfermedad , Fenómenos Electrofisiológicos , Fluorescamina , Indicadores y Reactivos , Procedimientos Neuroquirúrgicos , Imagen Óptica , Bloqueadores de los Canales de Potasio , Ratas , Convulsiones/fisiopatología , Corteza Somatosensorial/fisiopatología , Cola (estructura animal) , Percepción del TactoRESUMEN
Pediatric traumatic brain injury (pTBI) is a major risk factor associated with adulthood incarceration. Most research into the link between pTBI and adulthood incarceration has focused on incarcerated males, who comprise the vast majority of incarcerated adults, particularly in industrialized nations. In this review, we sought to identify sex-related differences in the incidence and pathophysiology of pTBI and subsequent risk of adulthood incarceration. A scoping review was undertaken using PubMed, Scopus, Ovid, and the Cochrane Library. Articles analyzing sex-related differences in pTBI and adult incarceration rates, studies conducted on an incarcerated population, and cohort studies, cross-sectional studies, clinical trials, systematic reviews, or meta-analyses were included in this review. Of the 85 unique results, 25 articles met our inclusion criteria. Male children are 1.5 times more likely to suffer a TBI than females; however, the prevalence of incarcerated adults with a history of pTBI is â¼35-45% for both sexes. Neurophysiologically, female sex hormones are implicated in neuroprotective roles, mitigating central nervous system (CNS) damage post-TBI, although this role may be more complex, given that injury severity and sequelae have been correlated with male sex whereas increased mortality has been correlated with female sex. Further investigation into the relationship between estrogen and subsequent clinical measurements of CNS function is needed to develop interventions that may alleviate the pathophysiological consequences of pTBI.
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In partial onset epilepsy, seizures arise focally in the brain and often propagate. Patients frequently become refractory to medical management, leaving neurosurgery, which can cause neurologic deficits, as a primary treatment. In the cortex, focal seizures spread through horizontal connections in layers II/III, suggesting that severing these connections can block seizures while preserving function. Focal neocortical epilepsy is induced in mice, sub-surface cuts are created surrounding the seizure focus using tightly-focused femtosecond laser pulses, and electrophysiological recordings are acquired at multiple locations for 3-12 months. Cuts reduced seizure frequency in most animals by 87%, and only 5% of remaining seizures propagated to the distant electrodes, compared to 80% in control animals. These cuts produced a modest decrease in cortical blood flow that recovered and left a ≈20-µm wide scar with minimal collateral damage. When placed over the motor cortex, cuts do not cause notable deficits in a skilled reaching task, suggesting they hold promise as a novel neurosurgical approach for intractable focal cortical epilepsy.
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Modelos Animales de Enfermedad , Epilepsias Parciales , Convulsiones , Animales , Ratones , Epilepsias Parciales/cirugía , Masculino , Ratones Endogámicos C57BL , Terapia por Láser/métodos , Electroencefalografía/métodosRESUMEN
OBJECTIVE: Virtual mentorship and research programs are becoming increasingly popular to facilitate education and career development for students and residents. We review virtual research initiatives for early trainees in neurosurgery and describe our effort to expand access to resources and shared objective mentorship (SOM) via the novel Neurosurgery Education and Research Virtual Group (NERVE). METHODS: A systematic review of neurosurgical programming delivered via a virtual platform was conducted using PubMed, Embase, and Scopus databases. Identified articles were screened. Those meeting prespecified inclusion criteria were reviewed in full and examined for relevant data. Data analysis was performed using Microsoft Excel, and means and standard deviations were calculated. Descriptive analysis of NERVE characteristics was also performed. RESULTS: Of the 2438 identified articles, 10 were included. The most common (70%) implementation style was a webinar-based lecture series. The least common (10%) was a longitudinal curricular interest group. Of the total NERVE cohort, 90% were first generation medical students and 82% attended institutions without home programs. Survey results indicated 73.8% had contributed to at least 2 research projects throughout the year. CONCLUSIONS: There is a scarcity of virtual neurosurgical resources which facilitate SOM opportunities for trainees. In our systematic review, NERVE is the only multi-institutional virtual initiative aimed at increasing access to neurosurgical education and research opportunities for the purpose of SOM among early trainees from disadvantaged backgrounds. This highlights the group's niche and potential impact on increasing diversity in neurosurgery, improving trainees' career development, and facilitating future resident research productivity.
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Educación Médica , Neurocirugia , Estudiantes de Medicina , Humanos , Neurocirugia/educación , Mentores , Procedimientos NeuroquirúrgicosRESUMEN
OBJECTIVES: Intracranial arachnoid cysts are commonly characterized as congenital. Evidence to support a congenital origin is scant and documented evolution during infancy also calls into question the genesis of these lesions. To improve our understanding of the natural history and the clinical significance of arachnoid cysts on prenatal ultrasound, we conducted a study to describe the fate of these cysts after initial diagnosis. METHODS: We conducted a retrospective descriptive review of all prenatal ultrasounds with reported intracranial arachnoid cysts at a tertiary care center from 2010 to 2016 and cohort study comparing patients with additional ultrasound abnormalities to those with an isolated finding of arachnoid cyst. Data collected included gestational age at cyst diagnosis, cyst evolution on follow-up imaging, cyst size and cyst location, postnatal imaging and neurosurgical consultation and intervention. Statistical analysis including Chi-square and Fisher's exact tests and univariate logistic regressions were performed using Stata v. 13 (StataCorp 2013. Stata Statistical Software: Release 13. College Station, TX: StataCorp LP). Confidence intervals were reported at 95% and a p-value < .05 was considered significant. RESULTS: A total of 33,621 anatomical ultrasound scans were performed from 2010 to 2016. Seventy patients (0.2%) had prenatal findings of arachnoid cyst, of which the mean gestational age was 21.46 weeks. Ventriculomegaly was observed in one patient (1.4%) at the time of diagnosis and other abnormalities were found in twelve patients (17%). Complete sonographic follow-up prior to delivery was obtained in 53 (75.7%) patients with 5(9.4%) progression, 5(9.4%) regression, and 43(81.1%) no longer visualized. Forty-three cysts (81.1%) were no longer visualized on follow-up imaging, all of which were interhemispheric in location. All of the cysts that progressed in size on prenatal ultrasounds were > 2 cm in size on initial diagnosis. Cyst fenestration was performed in two patients (2.9%) that had arachnoid cysts measuring at least 3 cm in each dimension on prenatal imaging, one at eight months and one at six months of age. Patients with and without additional sonographic abnormalities had similar rates of AMA (23.1% vs 26.3%, p = .56), nulliparity (61.5% vs 70.2%, p = .38), obesity (0.0% vs 12.3%, p = .221), major medical comorbidities (38.5% vs 33.3%, p = .48) and pregnancy achieved via Assisted Reproductive Technology (38.5% vs 24.6%, p = .25), respectively. Patients with additional sonographic abnormalities were significantly more likely to have prenatal Magnetic Resonance Imaging (OR: 8.28, CI: 1.84-40.4, p = .07), prenatal neurosurgery consultation (OR: 8.25, CI: 1.23-69.05, p = .04) and invasive diagnostic genetic testing (OR: 11.25, CI: 2.33-64.35, p = .003). CONCLUSIONS: Arachnoid cysts are infrequently found on prenatal screening. Size greater than 2 cm on second trimester ultrasound and location outside of the interhemispheric fissure may indicate the need for further evaluation and eventual fenestration. Prenatally diagnosed arachnoid cysts are not typically associated with other anatomic or genetic abnormalities, although the presence of additional abnormalities usually leads to more intensive prenatal and postnatal investigations.
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Quistes Aracnoideos , Hidrocefalia , Quistes Aracnoideos/complicaciones , Quistes Aracnoideos/diagnóstico por imagen , Quistes Aracnoideos/cirugía , Niño , Estudios de Cohortes , Femenino , Humanos , Hidrocefalia/diagnóstico por imagen , Hidrocefalia/etiología , Hidrocefalia/cirugía , Lactante , Imagen por Resonancia Magnética/métodos , Embarazo , Pronóstico , Estudios RetrospectivosRESUMEN
OBJECTIVE: To examine the perceived effectiveness of the virtual neurosurgery training camps (VNTC) among medical students with (HP) and without (NHP) home neurosurgery residency programs. METHODS: A survey assessing demographics, baseline interests, and ratings of usefulness and interest of programming was sent to attendees after the VNTC. Ratings were quantified on modified 7-point Likert scales. Ratings were compared between attendees HP and NHP neurosurgery residency programs using Wilcoxon sum-rank or χ2 tests. A P value of 0.05 determined significance. RESULTS: There were 119 respondents, with 80 (67.2%) HP and 39 (32.8%) NHP students. Differences were observed between the groups for medical school type (P = 0.002), highest degree achieved (P = 0.030), previous participation in a Medical Student Neurosurgery Training Center event (P = 0.004), having a neurosurgery interest group (P < 0.001), and primary reason for VNTC attendance (P = 0.028). Increased interest in peripheral nerve neurosurgery was greater for the NHP (P = 0.047) but not neurosurgery or other subspecialties. A significant difference in usefulness of the different VNTC sessions was observed (P = 0.002), whereas none was seen in willingness to pursue neurosurgery (P = 0.33), likelihood of taking a year off (P = 0.44), and preparedness for subinternships (P = 0.57) or applications (P = 0.77). CONCLUSIONS: The 2020 VNTC benefited both HPO and NHP medical students, but there were differences in perceived usefulness of virtual education. Future initiatives should continue to be tailored toward disadvantaged students.
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Educación a Distancia/métodos , Educación Médica/métodos , Internado y Residencia/métodos , Procedimientos Neuroquirúrgicos/educación , Estudiantes de Medicina , Encuestas y Cuestionarios , Humanos , Neurocirugia/educación , Neurocirugia/métodosRESUMEN
Neurosurgeons have a rich history of involvement in medical student education. We review the scope of related published works with the goal of highlighting recently increased efforts to innovate in neurosurgical education and discuss where future efforts must go. A scoping review was performed after comprehensive search of PubMed MEDLINE and Embase databases. Among the 2314 articles returned in the search, 54 were selected for inclusion and review. Articles are discussed in the context of neurosurgery electives, American Association of Neurological Surgeons chapters and medical school programs, national neurosurgery courses, neurosurgery education materials, neurosurgery career perceptions, and the impact of coronavirus disease 2019. Despite increasing need for neurosurgical education in medical school, available experiences in formal curricula are diminishing. Longitudinal exposure to neurosurgery throughout medical school will help ensure a foundational understanding of neurosurgical disease management for all physicians and provide a pathway of exploration, education, and mentorship for the most suitable candidates. Neurosurgery faculty mentorship is particularly important to ensure that the next generation of neurologic surgeons is well equipped to treat patients, catalyze innovative research, and espouse both diverse perspectives and novel ideas.
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COVID-19 , Internado y Residencia , Neurocirugia , Estudiantes de Medicina , Selección de Profesión , Humanos , Neurocirugia/educación , Facultades de Medicina , Estados UnidosRESUMEN
OBJECTIVE: Addressing equitable opportunities for medical student (MS) education is important for minimizing disparities in neurosurgical care. However, international MSs, particularly from low- and middle-middle income countries (LMICs) may lack access to educational opportunities compared with their contemporaries in high-income countries. We compare the usefulness of virtual neurosurgery training camps (VNTC) between U.S. and international MSs. METHODS: A survey assessing demographics, baseline interests, and ratings of usefulness was sent to attendees after the VNTC. Ratings were compared between international and U.S. MSs. RESULTS: Thirty-three (27.7%) of 119 attendees were international MSs, of whom 24 (72.7%) were from LMICs. International MSs were more likely to hold an advanced degree (P = 0.0009), more likely to be MS3/MS4s (P = 0.0111) or postdoctoral (P < 0.0001), and less likely to be MS1/MS2s (P = 0.0059). After the VNTC, international MSs reported greater increase in interest in neurosurgery in general (P = 0.0009) and subspecialties of spine (P = 0.0002), peripheral nerve (P = 0.002), vascular (P = 0.0468), functional/epilepsy (P = 0.001), pediatric (P = 0.0285), and trauma/neurocritical care (P = 0.0067). International MSs reported greater post-VNTC willingness to pursue a career in neurosurgery (P = 0.0001), likelihood of taking a year off during medical school (P = 0.0363), and preparedness for subinternships (P = 0.0003). International MSs reported greater increases in awareness of burnout (P = 0.0157) and work-life balance in neurosurgery (P = 0.0249). CONCLUSIONS: International MSs experience prolonged periods of education before applying to residency and have unmet informational needs. Distance learning is useful for international MSs. MS neurosurgery education, through online platforms, represents a long-term strategy for addressing disparities in neurosurgical care worldwide.
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Educación a Distancia , Educación Médica , Internado y Residencia , Neurocirugia , Estudiantes de Medicina , Niño , Humanos , Neurocirugia/educación , Procedimientos Neuroquirúrgicos/educaciónRESUMEN
OBJECTIVE: Interest groups for medical students (MSs) facilitate interest and engagement in neurosurgery. Students without interest groups are at a disadvantage as a result of greater barriers to exposure. We aimed to compare the usefulness of a virtual neurosurgery training camp for MSs with and without interest groups. METHODS: A survey assessing demographics, interests, and ratings of informativeness and usefulness was sent to attendees of virtual neurosurgery training camps. Ratings were quantified on modified 7-point Likert scales. Data were compared between respondents with and without neurosurgery interest groups. RESULTS: Students without an interest group were less likely to be MS1/MS2 (P = 0.0007) and more likely to be postdoctoral students (P = 0.0017). Students without an interest group were less likely to list breakout sessions as their primary reason for attendance (P = 0.0007), more likely to rate the resident panel as most useful (P = 0.0429), and less likely to rate the breakout session as most useful (P = 0.0231). Students without interest groups reported greater increases in interest in neurosurgery in general (P = 0.0284) and subspecialties of spine (P = 0.0003), peripheral nerve (P = 0.0054), and pediatric (P = 0.0137). There was no difference in willingness to pursue a neurosurgical career (P = 0.06), likelihood of taking a year off during medical school (P = 0.45), or preparedness for subinternships (P = 0.18) or residency application process (P = 0.43). CONCLUSIONS: Distance learning increases both general and subspecialty-specific interest in neurosurgery among MSs without neurosurgery interest groups to a greater degree than among those with interest groups. Future initiatives seeking to benefit students without home programs should address the specific concerns of these students.
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Educación a Distancia , Internado y Residencia , Neurocirugia , Estudiantes de Medicina , Selección de Profesión , Niño , Humanos , Neurocirugia/educación , Opinión PúblicaRESUMEN
OBJECTIVE: Neurosurgery has a high barrier of educational access for medical students. The Medical Student Neurosurgery Training Center (MSNTC) is a novel online learning platform that provides on-site and virtual training opportunities and resources that aim to increase student access to neurosurgical education. The objective of this article was to describe student-reported utility of Medical Student Neurosurgery Training Center educational resources. METHODS: A Qualtrics survey was sent to attendees after the 2020 Virtual Neurosurgery Training Camp. Ratings were quantified on modified 5-point Likert scales and compared using Wilcoxon rank sum tests, with a P value of 0.05. RESULTS: Response was obtained from 119 (25.2%) of 473 Virtual Neurosurgery Training Camp registrants. Of respondents, 65 (54.6%) reported prior use of Brain & Spine Report (BSR), 68 (57.14%) reported use of the Video Library (VL), and 78 (65.5%) reported use of the Global Events Calendar (GEC). Among respondents who previously used the BSR, VL, or GEC, mean ratings of usefulness were 3.94 ± 1.01, 4.06 ± 0.91, and 4.10 ± 0.99, respectively. Medical students with a neurosurgery interest group at their home institution reported greater utility of the BSR (P = 0.0008), VL (P = 0.0018), and GEC (P = 0.0250). Medical students with a home program reported greater utility of the BSR (P = 0.0079), and international students reported greater utility of the VL (P = 0.0447). CONCLUSIONS: Medical Student Neurosurgery Training Center resources appear to have promising preliminary benefits for students. Increasing medical student awareness, continued development of these resources, and objectively assessing outcomes in neurosurgery education are warranted.
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Educación a Distancia , Educación Médica , Neurocirugia , Estudiantes de Medicina , Humanos , Neurocirugia/educación , Procedimientos Neuroquirúrgicos/educaciónRESUMEN
INTRODUCTION: There is a growing need for collaborative and broad-scale medical student neurosurgery educational initiatives. Here, we propose a comprehensive methodology and structure for hosting both in-person and virtual learning opportunities for early trainees interested in clinical neurosciences. METHODS: We conducted an internal review of educational courses hosted by Medical Student Neurosurgery Training Center from 2017 to 2022. Inspired by the lessons learned from these activities, we examine the elements vital to the planning, production, funding, and execution of future programs. RESULTS: Six domains were deemed important for carrying out medical student neurosurgery educational opportunities: directorship, curriculum, logistics, faculty and instructor outreach, funding, and marketing. Each of these elements is discussed in detail for both in-person and web-based programs, as well as an examination of the advantages and disadvantages of various implementation strategies. CONCLUSIONS: Based on the Medical Student Neurosurgery Training Center experience, successful production and hosting of both in-person and virtual educational endeavors seems to be contingent on a collaborative effort by medical students, resident physicians, and neurosurgery faculty. Including medical students throughout the planning phase adds to the overall educational value of each experience and promotes program longevity and consumer engagement. Curricula should be guided by clear learning objectives and a variety of teaching modalities available to the organization. Finally, methods for assessing course outcomes are important, including institutional review board-approved data curation and analysis. Further investigation of neurosurgical learning outcome measurement is needed and has the potential to shape the future of medical student education and neurosurgery career preparation.
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Educación Médica , Neurocirugia , Estudiantes de Medicina , Curriculum , Humanos , Neurocirugia/educación , Procedimientos Neuroquirúrgicos/métodosRESUMEN
OBJECTIVE: Virtual learning has made neurosurgery education more available to medical students (MSs) of all stages than ever before. We aimed to evaluate the impact of on-site learning in order to assess whether a return to this method of teaching, when safe, is warranted for MSs of all years. METHODS: Registrants of the 2019 MS Neurosurgery Training Camps were sent precourse and postcourse surveys to assess changes in self-assessed confidence in concrete neurosurgical skills. Data were analyzed using a 2-tailed paired Student's t-test for continuous variables. A P value <0.05 was considered significant. RESULTS: The 2019 Training Camp had 105 attendees, of whom 94 (89.5%) completed both surveys. Students reported statistically significant improvements in every surveyed skill area, except for understanding what is and is not sterile in an operating room. The cohort of MS 3/4 students indicated a postcourse decrease in confidence in their ability to understand what is and is not sterile in an operating room (93.69 ± 16.41 vs. 86.20 ± 21.18; P < 0.05). MS 3/4 students did not benefit in their ability to perform a neurologic examination or tie knots using a 1-handed technique. CONCLUSIONS: Neurosurgical education initiatives for MSs should continue to be developed. Hands-on neurosurgical training experiences for MSs serve as a valuable educational experience. Improvement in training models will lead to capitalizing on MS education to better improve readiness for neurosurgical residency without concern for patient safety.
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COVID-19 , Educación Médica , Internado y Residencia , Neurocirugia , Estudiantes de Medicina , Humanos , Neurocirugia/educaciónRESUMEN
OBJECTIVE: Distance learning has become increasingly important to expand access to neurosurgical spine education. However, emerging online spine education initiatives have largely focused on residents, fellows, and surgeons in practice. We aimed to assess the utility of online neurosurgical spine education for medical students regarding career interests, knowledge, and technical skills. METHODS: A survey assessing the demographics and effects of virtual spine education programming on the interests, knowledge, and technical skills was sent to attendees of several virtual spine lectures. The ratings were quantified using 7-point Likert scales. RESULTS: A total of 36 responses were obtained, of which 15 (41.7%) were from first- or second-year medical students and 18 (50.0%) were from international students. Most respondents were interested in neurosurgery (n = 30; 80.3%), with smaller numbers interested in radiology (n = 3; 8.3%) and orthopedic surgery (n = 2; 5.6%). The rating of utility ranged from 5.69 ± 1.14 to 6.50 ± 0.81 for career, 5.83 ± 0.94 to 6.14 ± 0.80 for knowledge, and 5.22 ± 1.31 to 5.83 ± 1.06 for clinical skills. Of the 36 respondents, 26 (72.2%) preferred virtual neurosurgical spine education via intermixed lectures and interactive sessions. The most common themes regarding the utility of virtual spine education were radiology by 18 (50.0%), anatomy by 12 (33.3%), and case-based teaching by 8 (22.2%) respondents. CONCLUSIONS: Virtual distance learning for neurosurgical spine education is beneficial for students by enabling career exploration and learning content and clinical skills. Although the overall benefit was lowest for clinical skills, virtual programming could serve as an adjunct to traditional in-person exposure. Distance learning could also provide an avenue to reduce disparities in medical student neurosurgical spine education locally and globally.
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Educación Médica , Neurocirugia , Estudiantes de Medicina , Competencia Clínica , Humanos , Neurocirugia/educación , Procedimientos Neuroquirúrgicos/educaciónRESUMEN
OBJECTIVE: There remains a gap in the literature analyzing how categorical variables may affect the highly competitive neurosurgery residency application process for MD Seniors in the United States. We aimed to improve understanding of the impact of medical school prestige and geographic location on candidacy for neurosurgery residency. METHODS: Schools were stratified into high and low prestige cohorts based on the U.S. News and World Report Rankings and by geographic location. Publicly available match data displayed by websites of included medical schools from 2016 to 2020 were examined, and neurosurgery residency placement rates were then compared. Analysis was performed using Fisher's exact test and chi-square analysis, with a p-value of 0.05. RESULTS: There were 6685 total matches in the high-prestige cohort and 12,997 total matches in the low-prestige cohort, with 115 (1.72%) and 113 (0.87%) neurosurgery matches, respectively (OR = 2.00, p < 0.0001). Considering geographic location, there were 5244 total matches in the Midwest, 3456 total matches in the West, 4994 total matches in the South, and 6053 total matches in the Northeast, with 51 (0.97%), 24 (0.69%), 83 (1.66%), and 114 (1.88%) being neurosurgery residency placements, respectively (p < 0.0001). CONCLUSIONS: Neurosurgery residency placement may be correlated with attending more prestigious medical schools and those located in the Northeast or South United States. Further elucidation of similar variables may prove to be important as neurosurgery residency becomes more competitive and the evaluation process changes.
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Internado y Residencia , Neurocirugia/educación , Facultades de Medicina , HumanosRESUMEN
OBJECTIVE: The factors that attract and concern medical students about a career in neurosurgery have never been clearly characterized or delineated in a large nationwide cohort of medical students intending to pursue a career in neurosurgery. The objective of the present study was to characterize the factors that influence medical student interest in neurosurgery and assess the effects of a formal neurosurgery training course on participants' perceptions of a career in neurosurgery. METHODS: Before the Medical Student Neurosurgery Training Camp for subinternship preparation, registered students were surveyed about their interest level in neurosurgery, factors that attracted or concerned them about a career in neurosurgery, attendance at a national neurosurgery conference or course, formal clinical neurosurgery exposure in medical school, and whether they had a resident or attending mentor in neurosurgery. At the end of the course, all the participants completed the surveyed again. P < 0.05 was considered significant on Pearson's χ2 and Fisher's exact tests for categorical variables and 2-tailed paired Student's t tests for continuous variables. RESULTS: Of the training camp attendees, >95% completed both pre- and postcourse surveys, including 41 first-year, 19 second-year, 30 third-year, and 5 fourth-year medical school students. The most common factors that concerned students about a career in neurosurgery were work-life balance (76%) and competitiveness (56%). All factors of concern were decreased in the postcourse survey, except for competitiveness. A small cohort (8.4%) of students had no concerns about a career in neurosurgery; this cohort had doubled to 17% after the course (P < 0.05). The students that indicated no concern had a greater postcourse interest level in neurosurgery (95.8 ± 8.7 vs. 86.7 ± 20.5; P < 0.05). Student reasons for an interest in neurosurgery included intellectually stimulating work (94%), interest in neurosciences (93%), effect on patients (84%), innovation and new technology (80%), research opportunities (77%), and prestige (24%). All reasons increased after the course, with the exception of prestige, which decreased to 22%. CONCLUSION: A training camp for students pursuing a neurosurgery subinternship was effective in providing transparency and positively influencing the factors that attract and concern students about a career in neurosurgery. Characterization of medical student perceptions of neurosurgery from a large, nationwide cohort of students pursuing a subinternship has provided novel data and could help identify factors protecting against burnout later in life.
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Selección de Profesión , Neurocirugia , Estudiantes de Medicina , Adulto , Femenino , Humanos , Masculino , Estados UnidosRESUMEN
OBJECTIVE: Historically, medical student education in neurological surgery has generally limited student involvement to assisting in research projects with minimal formal clinical exposure before starting sub-internships and application for the neurosurgery match. Consequently, students have generally had little opportunity to acquire exposure to clinical neurosurgery and attain minimal proficiency. A medical student training camp was created to improve the preparation of medical students for the involvement in neurological surgery activities and sub-internships. METHODS: A 1-day course was held at Weill Cornell Medicine, which consisted of a series of morning lectures, an interactive resident lunch panel, and afternoon hands-on laboratory sessions. Students completed self-assessment questionnaires regarding their confidence in several areas of clinical neurosurgery before the start of the course and again at its end. RESULTS: A significant increase in self-assessed confidence was observed in all skill areas surveyed. Overall, rising fourth year students who were starting sub-internships in the subsequent weeks reported a substantial increase in their preparedness for the elective rotations in neurosurgery. CONCLUSIONS: The preparation of medical students for clinical neurosurgery can be improved. Single-day courses such as the described training camp are an effective method for improving knowledge and skill gaps in medical students entering neurosurgical careers. Initiatives should be developed, in addition to this annual program, to increase the clinical and research skills throughout medical student education.
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Competencia Clínica/normas , Curriculum/normas , Neurocirugia/educación , Neurocirugia/normas , Estudiantes de Medicina , Educación Médica/métodos , Educación Médica/normas , Humanos , Internado y Residencia/métodos , Internado y Residencia/normas , Neurocirugia/métodos , Procedimientos Neuroquirúrgicos/educación , Procedimientos Neuroquirúrgicos/métodos , Procedimientos Neuroquirúrgicos/normas , Encuestas y Cuestionarios/normasRESUMEN
BACKGROUND: The ideal suturing technique for microvascular anastomosis for neurosurgical bypass procedures remains a point of debate. Simple interrupted sutures are thought to possess higher long-term patency but require more time to place as compared to running sutures. OBJECTIVE: To optimize the efficiency of microvascular anastomosis and limit brain ischemia time. METHODS: The running-to-interrupted microsuture technique, a modification of the previously published spiral anastomosis, is described wherein loosely thrown running sutures are placed between 2 opposed anchor stitches. The loops are then serially cut and tied, resulting in efficiently placed interrupted stitches. This process is repeated on the opposite side to complete the anastomosis. RESULTS: The running-to-interrupted microsuture technique is quickly learned, limits unnecessary microsurgical movements, and is employed by the senior author for a multitude of cerebral arterial bypass procedures. CONCLUSION: This technical improvement can be adapted by any neurovascular surgeon to optimize microsurgical efficiency and limit anastomosis-related brain ischemia times.
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Estenosis Carotídea/cirugía , Microcirugia/métodos , Procedimientos Neuroquirúrgicos/métodos , Técnicas de Sutura , Procedimientos Quirúrgicos Vasculares/métodos , Arteria Carótida Interna/cirugía , Humanos , Masculino , Persona de Mediana Edad , SuturasRESUMEN
OBJECTIVE: Postoperative surgical site infections (SSIs) in neurosurgical patients carry a significant risk of increased morbidity and mortality. With SSIs accounting for approximately 20% of nosocomial infections and costing approximately $1.6 billion USD annually, there is a need for additional prophylaxis to improve current standards of care. Topical vancomycin is increasingly utilized in instrumented spinal and cardiothoracic procedures, where it has been shown to reduce the risk of SSIs. A randomized controlled trial assessing its efficacy in the general neurosurgical population is currently underway. Here, the authors report their initial impressions of topical vancomycin safety among patients enrolled during the 1st year of the trial. METHODS: This prospective, multicenter, patient-blinded, randomized controlled trial will enroll 2632 patients over 5 years. Here, the authors report the incidence of adverse events, the degree of systemic vancomycin absorption in treated patients, and pattern changes of antibiotic-resistant profiles of Staphylococcus aureus flora among patients enrolled during the 1st year. RESULTS: The topical vancomycin treatment group comprised 257 patients (514 total enrolled patients), of whom 2 exhibited weakly positive serum levels of vancomycin (> 3.0 mg/dl). S. aureus was detected preoperatively in the anterior nares of 35 (18.1%) patients and the skin near the surgical site of 9 (4.7%). Colonization in the nares remained for many patients (71.4%) through postoperative day 30. The authors found a significant association between preoperative S. aureus colonization and postoperative colonization. Seven methicillin-resistant isolates were detected among 6 different patients. Two isolates were detected preoperatively, and 5 were de novo postoperative colonization. No adverse responses to treatment have been reported to date. CONCLUSIONS: The authors' data indicate that the use of topical vancomycin is safe with no significant adverse effects and minimal systemic absorption, and no development of vancomycin-resistant microorganisms.Clinical trial registration no.: NCT02284126 (clinicaltrials.gov).