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Is it time to rethink microsurgical training for the treatment of intracranial aneurysms in Australia? J Clin Neurosci 2023; 108:95-101. [PMID: 36630842 DOI: 10.1016/j.jocn.2023.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/29/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023]
Abstract
BACKGROUND Case volume and complexity for microsurgical treatment of cerebral aneurysms have changed due to the growing use of endovascular therapy in clinical practice. The authors sought to quantify the clinical exposure of Australian neurosurgery trainees to cerebral aneurysm microsurgery. METHODS This observational, retrospective cross-sectional study examined the Australian National Hospital Morbidity database for all admissions related to microsurgical and endovascular treatment of aneurysmal subarachnoid haemorrhage (aSAH) and unruptured intracranial aneurysms (UIAs) for the years 2008 to 2018. Procedural volumes were compared with neurosurgical trainee figures to investigate the rate of procedural exposure relative to the neurosurgical workforce. RESULTS A total of 8,874 (41.6%) microsurgical procedures (3,662 for aSAH, 5,212 for UIAs), and 12,481 (58.4%) endovascular procedures (6,018 for aSAH, 6,463 for UIAs) were performed. Trainee exposure to microsurgery in aSAH declined from 9.1 to 7.3 cases per trainee per annum (mean 7.7), with case complexity confined mostly to simple anterior circulation aneurysms. There are significant state-by-state differences in the preferred treatment modality for aSAH. During the same study period, the number of microsurgical cases for UIAs increased (from 8.9 to 13.5 cases per trainee per annum, mean 11.0). Significantly more endovascular procedures are performed than microsurgery (10.7 to 17.0, mean 12.7 cases, for aSAH; 8.0 to 21.5, mean 13.7 cases, for UIAs). CONCLUSIONS Trainee exposure to open aneurysm surgery for aSAH have significantly declined in both case volume and complexity. There is an overall increase in the number of surgeries for elective aneurysms, but this varies widely from state-to-state.
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Ahumada-Vizcaino JC, Wuo-Silva R, Hernández MM, Chaddad-Neto F. The art of combining neuroanatomy and microsurgical skills in modern neurosurgery. Front Neurol 2023; 13:1076778. [PMID: 36712447 PMCID: PMC9877616 DOI: 10.3389/fneur.2022.1076778] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/12/2022] [Indexed: 01/13/2023] Open
Abstract
Neurosurgical training outside the operating room has become a priority for all neurosurgeons around the world. The exponential increase in the number of publications on training in neurosurgery reflects changes in the environment that future neurosurgeons are expected to work in. In modern practice, patients and medicolegal experts demand objective measures of competence and proficiency in the growing list of techniques available to treat complex neurosurgical conditions. It is important to ensure the myriad of training models available lead to tangible improvements in the operating room. While neuroanatomy textbooks and atlases are continually revised to teach the aspiring surgeon anatomy with a three-dimensional perspective, developing technical skills are integral to the pursuit of excellence in neurosurgery. Parapharsing William Osler, one of the fathers of neurosurgical training, without anatomical knowledge we are lost, but without the experience and skills from practice our journey is yet to begin. It is important to constantly aspire beyond competence to mastery, as we aim to deliver good outcomes for patients in an era of declining case volumes. In this article, we discuss, based on the literature, the most commonly used training models and how they are integrated into the treatment of some surgical brain conditions.
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Affiliation(s)
| | - Raphael Wuo-Silva
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Manuel Moreno Hernández
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Feres Chaddad-Neto
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, SP, Brazil,Department of Neurosurgery, Beneficência Portuguesa Hospital, São Paulo, SP, Brazil,*Correspondence: Feres Chaddad-Neto ✉
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Santyr B, Abbass M, Chalil A, Vivekanandan A, Krivosheya D, Denning LM, Mattingly TK, Haji FA, Lownie SP. High-fidelity, simulation-based microsurgical training for neurosurgical residents. Neurosurg Focus 2022; 53:E3. [DOI: 10.3171/2022.5.focus22188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/16/2022] [Indexed: 11/06/2022]
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.
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Affiliation(s)
- Brendan Santyr
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Mohamad Abbass
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Alan Chalil
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Amirti Vivekanandan
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Daria Krivosheya
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio
| | - Lynn M. Denning
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Thomas K. Mattingly
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
- Department of Neurosurgery, University of Rochester, Rochester, New York
| | - Faizal A. Haji
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, Queen’s University, Kingston, Ontario, Canada; and
| | - Stephen P. Lownie
- Division of Neurosurgery, Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
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Cofano F, Di Perna G, Zeppa P, Lanotte M, Garbossa D. Letter: Improving Surgical Skills During Residency: A Scheduled and Certified Approach With Virtual-Augmented Reality and Life-Like Simulators: Experience in a Single School of Neurosurgery. Neurosurgery 2022; 91:e71-e73. [DOI: 10.1227/neu.0000000000002055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 04/26/2022] [Indexed: 11/19/2022] Open
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Vieira E, Guimarães TC, Pontes ECA, Silva ACV, Carneiro MC, Netto AU, Pereira L, Cezar AB, Faquini I, Almeida NS, Griz MFL, Azevedo-Filho HRC. Initial experience in the microsurgical treatment of ruptured brain aneurysms in the endovascular era: characteristics and safety of the learning curve in the first 300 consecutively treated patients. Acta Neurochir (Wien) 2022; 164:973-984. [PMID: 35239013 DOI: 10.1007/s00701-022-05165-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Currently, there is an increasing tendency to refer only complex aneurysms for microsurgery. The formation of new neurosurgeons dedicated to open vascular neurosurgery becomes challenging in a situation in which complex aneurysms must be dealt with early in the career, raising questions about the safety of the learning curve. METHODS We analyzed the characteristics and surgical results of the first 300 consecutively treated patients after subarachnoid hemorrhage by a single neurosurgeon. The incidence of surgical complications and clinical outcomes during the learning curve were analyzed, looking for critical periods regarding patient safety. Microsurgical operative times were also studied. RESULTS A high frequency of wide-necked aneurysms was observed (70.3%), and, as a result, large (> 10 mm), MCA and paraclinoid aneurysms were overrepresented. A statistically significant correlation between surgical experience and clinical outcomes was observed, with progressive surgical experience resulting in a lower incidence of unfavorable outcomes. We also observed a higher frequency of major surgical complications, unfavorable clinical outcomes, and lower complete occlusion rates among the first 40 patients. Microsurgical operative times progressively and significantly decreased during the learning curve. CONCLUSIONS We observed a high prevalence of wide-necked aneurysms. Young neurosurgeons must be trained and prepared to deal with these aneurysms early in their careers. Although we observed a decrease in unfavorable results with cumulative surgical experience, the first 40 cases were associated with higher rates of major surgical complications, worse clinical outcomes, and lower complete occlusion rates, indicating that this period may be more critical to patient safety.
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Affiliation(s)
- Eduardo Vieira
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil.
| | - Thiago C Guimarães
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Erton C A Pontes
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Ana C V Silva
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | | | - Arlindo U Netto
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Lívio Pereira
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Auricélio B Cezar
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Igor Faquini
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Nivaldo S Almeida
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
| | - Maria F L Griz
- Department of Neurological Surgery, Hospital da Restauração, Recife, Brazil
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Paraclinoid aneurysms: Outcome analysis and technical remarks of a microsurgical series. INTERDISCIPLINARY NEUROSURGERY 2022. [DOI: 10.1016/j.inat.2021.101373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Carlos GF, Enrrique FS, Aylen Andrea TG, Sabrina MN, Silvina M, Clara M, Santiago BJ, Marcelo OC, Noel AL, Augusto RP. Introducing a Realistic, Low-Cost Simulation Model for Clipping of Brain Aneurysms. World Neurosurg 2021; 158:305-311.e1. [PMID: 34774805 DOI: 10.1016/j.wneu.2021.11.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The current trend toward endovascular treatment of brain aneurysms may have a negative impact on young neurosurgeons who are less exposed to these lesions, thus affecting the acquisition of surgical skills in the field. Different training models have emerged to help cope with this issue, but these have specific pitfalls. Training models based on live animals or cadaveric specimens face increasing restrictions as regulations become a barrier in accessibility for everyday skills development. We introduce a novel, realistic, and inexpensive simulation model using a fresh bovine brain, and we assess its face and content validity as a training tool. METHODS A fresh bovine brain is used to simulate microsurgical fissure dissection. Arterial and aneurysmal components are created with arteries and veins harvested from chicken thigh. A 12-item questionnaire using the Likert numeric scale (grades 1 - 5) was used to assess the validity of model in 10 surgeons. RESULTS Ten neurosurgeons performed the simulated clipping of the aneurysm and completed a questionnaire. All surgeons surveyed responded "agree" or "strongly agree" that the simulator, and the skills trained with it, are comparable to clipping brain aneurysms. All respondents believed that this simulator could improve patient safety. CONCLUSIONS We present a novel, realistic, and inexpensive simulation model for the clipping of brain aneurysms. This model was partially validated by the opinion of field experts. We believe this model has the potential to become a useful training tool for young neurosurgeons who have little exposure to real aneurysm cases.
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Affiliation(s)
- Gallardo Federico Carlos
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina.
| | - Feldman Santiago Enrrique
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Targa García Aylen Andrea
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Morales Nadia Sabrina
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Martinez Silvina
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Martin Clara
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Bottan Juan Santiago
- Division of Neurosurgery, Hospital General de Niños "Pedro De Elizalde", Buenos Aires, Argentina
| | - Orellana Cristian Marcelo
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Almerares Leandro Noel
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
| | - Rubino Pablo Augusto
- Department of Neurosurgery, Hospital de Alta Complejidad en Red "El Cruce", Florencio Varela, Buenos Aires, Argentina
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Perin A, Gambatesa E, Galbiati TF, Fanizzi C, Carone G, Rui CB, Ayadi R, Saladino A, Mattei L, Legninda Sop FY, Caggiano C, Prada FU, Acerbi F, Ferroli P, Meling TR, DiMeco F. The "STARS-CASCADE" Study: Virtual Reality Simulation as a New Training Approach in Vascular Neurosurgery. World Neurosurg 2021; 154:e130-e146. [PMID: 34284158 DOI: 10.1016/j.wneu.2021.06.145] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Surgical clipping has become a relatively rare procedure in comparison to endovascular exclusion of cerebral aneurysms. Consequently, there is a declining number of cases where young neurosurgeons can practice clipping. For this reason, we investigated the application of a new 3-dimensional (3D) simulation and rehearsal device, Surgical Theater, in vascular neurosurgery. METHODS We analyzed data of 20 patients who underwent surgical aneurysm clipping. In 10 cases, Surgical Theater was used to perform the preoperative 3D planning (CASCADE group), while traditional imaging was used in the other cases (control group). Preoperative 3D simulation was performed by 4 expert and 3 junior neurosurgeons (1 fellow, 2 residents). During postoperative debriefings, expert surgeons explained the different aspects of the operation to their younger colleagues in an interactive way using the simulator. Questionnaires were given to the surgeons to get qualitative feedback about the simulator, and the junior surgeons' performance at simulator was also analyzed. RESULTS There were no differences in surgery outcomes, complications, and surgical duration (P > 0.05) between the 2 groups. Senior neurosurgeons performed similarly when operating at the simulator as compared with in the operating room, while junior neurosurgeons improved their performance at the simulator after the debriefing session (P < 0.005). CONCLUSIONS Surgical Theater proved to be realistic in replicating vascular neurosurgery scenarios for rehearsal and simulation purposes. Moreover, it was shown to be useful for didactic purposes, allowing young neurosurgeons to take full advantage and learn from senior colleagues to become familiar with this demanding neurosurgical subspecialty.
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Affiliation(s)
- Alessandro Perin
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Department of Life Sciences, University of Trieste, Trieste, Italy.
| | - Enrico Gambatesa
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Tommaso Francesco Galbiati
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Claudia Fanizzi
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Giovanni Carone
- Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Chiara Benedetta Rui
- Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Roberta Ayadi
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Andrea Saladino
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Luca Mattei
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Francois Yves Legninda Sop
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Chiara Caggiano
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Francesco Ugo Prada
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Department of Neurological Surgery, University of Virginia Health Science Center, Charlottesville, Virginia, USA
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy
| | - Torstein Ragnar Meling
- Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; EANS Training Committee, Sint Martens Latem, Belgium; Neurosurgery Department, Hopitaux Universitaires de Genève, Geneva, Switzerland
| | - Francesco DiMeco
- Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; Besta NeuroSim Center, Fondazione I.R.C.C.S. Istituto Neurologico Nazionale "C. Besta", Milan, Italy; EANS Training Committee, Sint Martens Latem, Belgium; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Department of Neurological Surgery, Johns Hopkins Medical School, Baltimore, Maryland, USA
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Abecassis IJ, Sen RD, Ellenbogen RG, Sekhar LN. Developing microsurgical milestones for psychomotor skills in neurological surgery residents as an adjunct to operative training: the home microsurgery laboratory. J Neurosurg 2021; 135:194-204. [PMID: 32886917 DOI: 10.3171/2020.5.jns201590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/21/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A variety of factors contribute to an increasingly challenging environment for neurological surgery residents to develop psychomotor skills in microsurgical technique solely from operative training. While adjunct training modalities such as cadaver dissection and surgical simulation are embraced and practiced at our institution, there are no formal educational milestones defined to help residents develop, measure, and advance their microsurgical psychomotor skills in a stepwise fashion when outside the hospital environment. The objective of this report is to describe an efficient and convenient "home microsurgery lab" (HML) assembled and tested by the authors with the goal of supporting a personalized stepwise advancement of microsurgical psychomotor skills. METHODS The authors reviewed the literature on previously published simulation practice models and designed adjunct learning modules utilizing the HML. Five milestones were developed for achieving proficiency with each graduated exercise, referencing the Accreditation Council for Graduate Medical Education (ACGME) guidelines. The HML setup was then piloted with 2 neurosurgical trainees. RESULTS The total cost for assembling the HML was approximately $850. Techniques for which training was provided included microinstrument handling, tissue dissection, suturing, and microanastomoses. Five designated competency levels were developed, and training exercises were proposed for each competency level. CONCLUSIONS The HML offers a unique, entirely home-based, affordable adjunct to the operative neurosurgical education mandated by the ACGME operative case logs, while respecting resident hospital-based education hours. The HML provides surgical simulation with specific milestones, which may improve confidence and the microsurgical psychomotor skills required to perform microsurgery, regardless of case type.
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Gallardo FC, Martin C, Targa Garcia AA, Bustamante JL, Nuñez M, Feldman SE. Home Program for Acquisition and Maintenance of Microsurgical Skills During the Coronavirus Disease 2019 Outbreak. World Neurosurg 2020; 143:557-563.e1. [PMID: 32711150 PMCID: PMC7375971 DOI: 10.1016/j.wneu.2020.07.114] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND During the current global crisis unleashed by the severe acute respiratory syndrome coronavirus 2 outbreak, surgical departments have considerably reduced the amount of elective surgeries. This decrease leads to less time in the surgical room to develop and improve the surgical skills of residents. In this study, we developed a training program to obtain and maintain microsurgical skills at home, using a smartphone camera and low-cost materials, affordable for everyone. METHODS Using a smartphone camera as a magnification device, 6 participants performed 5 exercises (coloring grids, grouping colors, unraveling of a gauze, knots with suture threads, and tower of Hanoi), both with the dominant and with the nondominant hand, for 4 weeks. We compared performance at the beginning and at the end of the training process. Each participant filled out an anonymous survey. RESULTS When we compared the performance at the beginning and at the end of the training process, we found significant improvements (P = 0.05) with the dominant as well as the nondominant hand in all the exercises. All participants were satisfied or very satisfied with the definition of the objectives of the training process, material availability, the exercises performed, the choice of the time to train, and general satisfaction with the training program. CONCLUSIONS We developed a microsurgical skills training program to be performed at home, which can be easily reproduced. It allows residents to improve manual coordination skills and is regarded as a feasible adjunct for ongoing training for surgical residents.
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Affiliation(s)
| | - Clara Martin
- Department of Neurosurgery, Hospital de Alta Complejidad El Cruce, Buenos Aires, Argentina
| | | | - Jorge Luis Bustamante
- Department of Neurosurgery, Hospital de Alta Complejidad El Cruce, Buenos Aires, Argentina
| | - Maximiliano Nuñez
- Department of Neurosurgery, Hospital de Alta Complejidad El Cruce, Buenos Aires, Argentina
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Novel Simulation Model with Pulsatile Flow System for Microvascular Training, Research, and Improving Patient Surgical Outcomes. World Neurosurg 2020; 143:11-16. [PMID: 32712401 DOI: 10.1016/j.wneu.2020.07.116] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Simulation allows surgical trainees to acquire surgical skills in a safe environment. With the aim of reducing the use of animal experimentation, different alternative nonliving models have been pursued. However, one of the main disadvantages of these nonliving models has been the absence of arterial flow, pulsation, and the ability to integrate both during a procedure on a blood vessel. In the present report, we have introduced a microvascular surgery simulation training model that uses a fiscally responsible and replicable pulsatile flow system. METHODS We connected 30 human placentas to a pulsatile flow system and used them to simulate aneurysm clipping and vascular anastomosis. RESULTS The presence of the pulsatile flow system allowed for the simulation of a hydrodynamic mechanism similar to that found in real life. In the aneurysm simulation, the arterial flow could be evaluated before and after clipping the aneurysm using a Doppler ultrasound system. When practicing anastomosis, the use of the pulsatile flow system allowed us to assess the vascular flow through the anastomosis, with verification using the Doppler ultrasound system. Leaks were manifested as "blood" pulsatile ejections and were more frequent at the beginning of the surgical practice, showing a learning curve. CONCLUSIONS We have provided a step-by-step guide for the assembly of a replicable and inexpensive pulsatile flow system and its use in placentas for the simulation of, and training in, performing different types of anastomoses and intracranial aneurysms surgery.
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Srinivasan VM, Griessenauer CJ, Rodríguez-Hernández A, Duckworth EAM, Thines L, Hecht N, Kan P, Lawton MT, Burkhardt JK. A Survey of Microsurgical Technique for Extracranial-to-Intracranial Bypass. World Neurosurg 2020; 141:e743-e751. [PMID: 32534265 DOI: 10.1016/j.wneu.2020.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Extracranial-to-intracranial bypass surgery is a well-established technique that has been practiced for over 50 years. Since then, numerous technical variants have developed nationally and internationally. OBJECTIVE Based on a survey, to collect information on cerebrovascular bypass surgeons and their background, surgical volume, and technical steps of extracranial-to-intracranial bypasses with focus on superficial temporal artery to middle cerebral artery (STA-MCA) bypass. METHODS An electronic survey was distributed among bypass neurosurgeons. Responses were analyzed for national-international variations of STA-MCA bypass surgery techniques. The survey focused on the technical aspects of the surgery itself rather than patient selection or perioperative management. RESULTS Survey responses were collected from 51 neurosurgeons performing cerebrovascular bypass, from 11 different countries across North America, Europe, and Asia. The largest age block was early-to mid-career (66.7% aged 36-50 years). Most participating surgeons (80.40%) performed less than 20 bypasses annually, whereas a select few surgeons (3) performed more than 50 annually. The most common bypass was STA-M4 MCA bypass with a linear incision (34%) over the parietal branch (44%) and choosing an MCA recipient based on diameter (61.2%). The interrupted anastomosis technique was most common (74%). CONCLUSIONS The results of this electronic survey will help to identify common patterns in STA-MCA bypass surgery and will serve as a guide to other neurosurgeons to modify and improve their technique. Cerebrovascular bypass is still widely practiced, including by young neurosurgeons, who are actively learning from established masters who share their experience.
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Affiliation(s)
| | - Christoph J Griessenauer
- Department of Neurosurgery, Geisinger Health, Danville, Pennsylvania; Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria
| | - Ana Rodríguez-Hernández
- Department of Neurological Surgery, Germans Trias i Pujol University Hospital, Universidad Autónoma, Barcelona, Spain
| | | | - Laurent Thines
- Division of Neurosurgery, University Hospital of Besançon, Besançon, France
| | - Nils Hecht
- Department of Neurosurgery, Charite Berlin, Berlin, Germany
| | - Peter Kan
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Michael T Lawton
- Department of Neurological Surgery, Barrow Neurological Institute, Phoenix, Arizona, USA
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Munich SA, Vakharia K, McPheeters MJ, Tso MK, Waqas M, Snyder KV, Siddiqui AH, Davies JM, Levy EI. Make Clipping Great Again: Microsurgery for Cerebral Aneurysms by Dual-Trained Neurosurgeons. World Neurosurg 2020; 137:e454-e461. [PMID: 32058116 DOI: 10.1016/j.wneu.2020.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Despite an increasing focus on endovascular treatment of cerebral aneurysms, microsurgical clipping remains an integral part of management. We evaluated the safety and effectiveness of microsurgical clipping performed by dual-trained neurosurgeons at our institute, which has adopted an endovascular first approach. METHODS We retrospectively reviewed clinical and radiographic data of 412 aneurysms in 375 patients treated with microsurgical clipping. Univariate and multivariate analyses were performed to identify predictive outcome factors. We defined favorable outcome as a modified Rankin Scale (mRS) score of 0-2 at last clinical follow-up; unfavorable outcome was an mRS score of 3-6. We compared outcomes in our series with those of seminal aneurysm clipping series. RESULTS Clipping of 330 of 351 unruptured aneurysms (94.01%) was associated with favorable outcome during the follow-up period (mean, 26.5 months). On univariate analysis, older patient age, intraoperative rupture, and higher baseline mRS scores were associated with unfavorable outcome in the unruptured cohort. On multivariate analysis, older age, higher baseline mRS scores, and posterior circulation aneurysm location were predictive of unfavorable outcome. Clipping of 46 of 61 ruptured aneurysms (75.4%) was associated with favorable outcome during the follow-up period (mean, 23.1 months). On univariate analysis, left-sided aneurysms, intraoperative rupture, and large aneurysm size were associated with unfavorable outcome in the ruptured cohort. On multivariate analysis, female sex was predictive of unfavorable outcome. CONCLUSIONS Our ruptured and unruptured cohort results compared favorably with those in seminal series. Treatment by neurosurgeons adept at both endovascular and microsurgical techniques may improve clinical outcomes.
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Affiliation(s)
- Stephan A Munich
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Kunal Vakharia
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Matthew J McPheeters
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Michael K Tso
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Muhammad Waqas
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Kenneth V Snyder
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Adnan H Siddiqui
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA; Jacobs Institute, Buffalo, New York, USA
| | - Jason M Davies
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Biomedical Informatics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA; Jacobs Institute, Buffalo, New York, USA
| | - Elad I Levy
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA; Jacobs Institute, Buffalo, New York, USA.
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Hafez A, Elsharkawy A, Schwartz C, Muhammad S, Laakso A, Niemelä M, Lehecka M. Comparison of Conventional Microscopic and Exoscopic Experimental Bypass Anastomosis: A Technical Analysis. World Neurosurg 2019; 135:e293-e299. [PMID: 31805406 DOI: 10.1016/j.wneu.2019.11.154] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/23/2019] [Accepted: 11/25/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Recently, the use of digital exoscopes has been increasingly promoted as an alternative to microscopes. The aim of this study is to compare experimental bypass quality in both visualization methods. METHODS This study used two hundred 1-mm chicken wing vessels, which were used for either exoscopic or microscopic (100 samples each) bypass procedures. All procedures were recorded between July 2018 and September 2018. The bypass quality was evaluated according to our published practical scale (time, stitch distribution, intima-intima attachment, and orifice size). RESULTS Both methods are effective in doing bypass suturing (practical scale score was good, 86% vs. 85%; P = 0.84). There were no significant differences regarding intima-intima attachment (P = 0.26) and orifice size (P = 0.25). However, suturing time (P < 0.001) was less using the microscope, whereas stitch distribution (P = 0.001) was better using the exoscope. Different suturing techniques (interrupted vs. continuous) had overall comparable results (P = 0.55). CONCLUSIONS Both methods produced equally satisfactory results in experimental bypass procedures. The exoscope has the potential for better 3-dimensional visualization and sharing the surgeon's view with others for teaching purposes.
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Affiliation(s)
- Ahmad Hafez
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland.
| | - Ahmed Elsharkawy
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland; Department of Neurosurgery, Tanta University, Tanta, Egypt
| | - Christoph Schwartz
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland; Department of Neurosurgery, Paracelsus Medical University, Salzburg, Austria
| | - Sajjad Muhammad
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland; Department of Neurosurgery, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Aki Laakso
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Mika Niemelä
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Martin Lehecka
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
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Panesar SS, Britz GW. Endovascular Robotics: The Future of Cerebrovascular Surgery. World Neurosurg 2019; 129:327-329. [PMID: 31426254 DOI: 10.1016/j.wneu.2019.06.126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Sandip S Panesar
- Department of Neurosurgery, Stanford University, Stanford, California, USA
| | - Gavin W Britz
- Methodist Neurological Institute, Houston, Texas, USA
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Fredrickson VL, Strickland BA, Ravina K, Rennert RC, Donoho DA, Buchanan IA, Russin JJ, Mack WJ, Giannotta SL. State of the Union in Open Neurovascular Training. World Neurosurg 2019; 122:e553-e560. [DOI: 10.1016/j.wneu.2018.10.099] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 11/29/2022]
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17
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Ziechmann R, Hoffman H, Chin LS. Academic Genealogy of Neurosurgery via Department Chair. World Neurosurg 2018; 121:e113-e118. [PMID: 30218804 DOI: 10.1016/j.wneu.2018.09.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND An academic genealogy describes mentoring relationships in an academic discipline. In this study, we outline an academic genealogy of neurosurgery department chairs in the United States beginning with the founding members of the field. METHODS The biographic information provided by the Society for Neurological Surgery provided the basis for our genealogy. We also performed a literature review with PubMed using the term neurosurgery department history. Our data was manually uploaded to an online database called Academic Tree. Within this platform, mentor and trainee relationships were indicated to produce an academic genealogy. RESULTS Our search yielded a total of 377 chairs and 368 mentoring relationships across 98 neurosurgery departments. The largest family tree in our academic genealogy was that of Harvey Cushing, with 177 department chairs. Harvey Cushing was also the individual who trained the most number of department chairs (22). The institution that trained the most department chairs was Brigham and Women's Hospital (26). Only 23.6% of department chairs completed residency training at the same institution where they became chair. CONCLUSIONS The academic genealogy in this study allows for any neurosurgeon trained in the United States to put his or her training into historical context. It also provides a reference for bibliographic research to quantitatively describe the influence of individuals and institutions on the field.
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Affiliation(s)
- Robert Ziechmann
- Department of Neurosurgery, State University of New York Upstate, Syracuse, New York, USA.
| | - Haydn Hoffman
- Department of Neurosurgery, State University of New York Upstate, Syracuse, New York, USA
| | - Lawrence S Chin
- Department of Neurosurgery, State University of New York Upstate, Syracuse, New York, USA
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18
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Hafez A, Raj R, Lawton MT, Niemelä M. Simple training tricks for mastering and taming bypass procedures in neurosurgery. Surg Neurol Int 2017; 8:295. [PMID: 29285411 PMCID: PMC5735438 DOI: 10.4103/sni.sni_322_17] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 10/06/2017] [Indexed: 11/15/2022] Open
Abstract
Background: Neurosurgeons devoted to bypass neurosurgery or revascularization neurosurgery are becoming scarcer. From a practical point of view, “bypass neurosurgeons” are anastomosis makers, vessels technicians, and time-racing repairers of vessel walls. This requires understanding the key features and hidden tricks of bypass surgery. The goal of this paper is to provide simple and inexpensive tricks for taming the art of bypass neurosurgery. Most of these tricks and materials described can be borrowed, donated, or purchased inexpensively. Methods: We performed a review of relevant training materials and recorded videos for training bypass procedures for 3 years between June 2014 and July 2017. In total, 1,300 training bypass procedures were performed, of which 200 procedures were chosen for this paper. Results: A training laboratory bypass procedures is required to enable a neurosurgeon to develop the necessary skills. The important skills for training bypass procedures gained through meticulous practice to be as reflexes are coordination, speed, agility, flexibility, and reaction time. Bypassing requires synchronization between the surgeon's gross movements, fine motoric skills, and mental strength. The suturing rhythm must be timed in a brain–body–hand fashion. Conclusion: Bypass-training is a critical part of neurosurgical training and not for a selected few. Diligent and meticulous training can enable every neurosurgeon to tame the art of bypass neurosurgery. This requires understanding the key features and hidden tricks of bypass surgery, as well as uncountable hours of training. In bypass neurosurgery, quality and time goes hand in hand.
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Affiliation(s)
- Ahmad Hafez
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Rahul Raj
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Mika Niemelä
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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19
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Chowdhry SA, Spetzler RF. In Reply: Genealogy of Training in Vascular Neurosurgery. Neurosurgery 2017. [PMID: 28633462 DOI: 10.1093/neuros/nyx208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Shakeel A Chowdhry
- Department of Neurosurgery Barrow Neurological Institute St. Joseph's Hospital and Medical Center Phoenix, Arizona
| | - Robert F Spetzler
- Department of Neurosurgery Barrow Neurological Institute St. Joseph's Hospital and Medical Center Phoenix, Arizona
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20
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Balasubramanian C. Letter: Genealogy of Training in Vascular Neurosurgery. Neurosurgery 2017; 81:E37-E38. [PMID: 28575458 DOI: 10.1093/neuros/nyx206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Stienen MN, Netuka D, Demetriades AK, Ringel F, Gautschi OP, Gempt J, Kuhlen D, Schaller K. Residency program trainee-satisfaction correlate with results of the European board examination in neurosurgery. Acta Neurochir (Wien) 2016; 158:1823-30. [PMID: 27517689 DOI: 10.1007/s00701-016-2917-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/01/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Substantial country differences in neurosurgical training throughout Europe have recently been described, ranging from subjective rating of training quality to objective working hours per week. The aim of this study was to analyse whether these differences translate into the results of the written and oral part of the European Board Examination in Neurological Surgery (EBE-NS). METHODS Country-specific composite scores for satisfaction with quality of theoretical and practical training, as well as working hours per week, were obtained from an electronic survey distributed among European neurosurgical residents between June 2014 and March 2015. These were related to anonymous country-specific results of the EBE-NS between 2009 and 2016, using uni- and multivariate linear regression analysis. RESULTS A total of n = 1025 written and n = 63 oral examination results were included. There was a significant linear relationship between the country-specific EBE-NS result in the written part and the country-specific composite score for satisfaction with quality of theoretical training [adjusted regression coefficient (RC) -3.80, 95 % confidence interval (CI) -5.43-7 -2.17, p < 0.001], but not with practical training or working time. For the oral part, there was a linear relationship between the country-specific EBE-NS result and the country-specific composite score for satisfaction with quality of practical training (RC 9.47, 95 % CI 1.47-17.47, p = 0.021), however neither with satisfaction with quality of theoretical training nor with working time. CONCLUSION With every one-step improvement on the country-specific satisfaction score for theoretical training, the score in the EBE-NS Part 1 increased by 3.8 %. With every one-step improvement on the country-specific satisfaction score for practical training, the score in the EBE-NS Part 2 increased by 9.47 %. Improving training conditions is likely to have a direct positive influence on the knowledge level of trainees, as measured by the EBE-NS. The effect of the actual working time on the theoretical and practical knowledge of neurosurgical trainees appears to be insignificant.
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Affiliation(s)
- Martin N Stienen
- Department of Neurosurgery and Faculté de Médicine, University Hospital of Geneva, Geneva, Switzerland.
- Service de Neurochirurgie, Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Rue Gabrielle Perret-Gentil 4, 1205, Genève, Suisse.
| | - David Netuka
- Department of Neurosurgery, Charles University, 1st Medical Faculty, Central Military Hospital, Prague, Czech Republic
| | | | - Florian Ringel
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
- Department of Neurosurgery, Universitätsmedizin Mainz, Mainz, Germany
| | - Oliver P Gautschi
- Department of Neurosurgery and Faculté de Médicine, University Hospital of Geneva, Geneva, Switzerland
- Service de Neurochirurgie, Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Rue Gabrielle Perret-Gentil 4, 1205, Genève, Suisse
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Dominique Kuhlen
- Department of Neurosurgery, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Karl Schaller
- Department of Neurosurgery and Faculté de Médicine, University Hospital of Geneva, Geneva, Switzerland
- Service de Neurochirurgie, Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Rue Gabrielle Perret-Gentil 4, 1205, Genève, Suisse
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Lv FY, Dong RH, Li ZJ, Qin CC, Yan X, He XX, Zhou Y, Yan SY, Long YZ. In situ precise electrospinning of medical glue fibers as nonsuture dural repair with high sealing capability and flexibility. Int J Nanomedicine 2016; 11:4213-20. [PMID: 27621616 PMCID: PMC5010156 DOI: 10.2147/ijn.s113560] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Purpose In this work, we propose an in situ precise electrospinning of medical glue fibers onto dural wound for improving sealing capability, avoiding tissue adhesion, and saving time in dural repair. Methods N-octyl-2-cyanoacrylate, a commercial tissue adhesive (medical glue), can be electrospun into ultrathin fibrous film with precise and homogeneous deposition by a gas-assisted electrospinning device. Results The self-assembled N-octyl-2-cyanoacrylate film shows high compactness and flexibility owing to its fibrous structure. Simulation experiments on egg membranes and goat meninges demonstrated that this technology can repair small membrane defects quickly and efficiently. Conclusion This method may have potential application in dural repair, for example, working as an effective supplementary technique for conventional dura suture.
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Affiliation(s)
- Fu-Yan Lv
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University
| | - Rui-Hua Dong
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University
| | - Zhao-Jian Li
- Department of Neurosurgery, Affiliated Hospital of Qingdao University
| | - Chong-Chong Qin
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University
| | - Xu Yan
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University; Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing
| | - Xiao-Xiao He
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University
| | - Yu Zhou
- Medical College, Qingdao University, Qingdao, People's Republic of China
| | - Shi-Ying Yan
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University; Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing
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Aboud E, Aboud G, Al-Mefty O, Aboud T, Rammos S, Abolfotoh M, Hsu SPC, Koga S, Arthur A, Krisht A. "Live cadavers" for training in the management of intraoperative aneurysmal rupture. J Neurosurg 2015; 123:1339-46. [PMID: 26140492 DOI: 10.3171/2014.12.jns141551] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Intraoperative rupture occurs in approximately 9.2% of all cranial aneurysm surgeries. This event is not merely a surgical complication, it is also a real surgical crisis that requires swift and decisive action. Neurosurgical residents may have little exposure to this event, but they may face it in their practice. Laboratory training would be invaluable for developing competency in addressing this crisis. In this study, the authors present the "live cadaver" model, which allows repetitive training under lifelike conditions for residents and other trainees to practice managing this crisis. METHODS The authors have used the live cadaver model in 13 training courses from 2009 to 2014 to train residents and neurosurgeons in the management of intraoperative aneurysmal rupture. Twenty-three cadaveric head specimens harboring 57 artificial and 2 real aneurysms were used in these courses. Specimens were specially prepared for this technique and connected to a pump that sent artificial blood into the vessels. This setting created a lifelike situation in the cadaver that simulates live surgery in terms of bleeding, pulsation, and softness of tissue. RESULTS A total of 203 neurosurgical residents and 89 neurosurgeons and faculty members have practiced and experienced the live cadaver model. Clipping of the aneurysm and management of an intraoperative rupture was first demonstrated by an instructor. Then, trainees worked for 20- to 30-minute sessions each, during which they practiced clipping and reconstruction techniques and managed intraoperative ruptures. Ninety-one of the participants (27 faculty members and 64 participants) completed a questionnaire to rate their personal experience with the model. Most either agreed or strongly agreed that the model was a valid simulation of the conditions of live surgery on cerebral aneurysms and represents a realistic simulation of aneurysmal clipping and intraoperative rupture. Actual performance improvement with this model will require detailed measurement for validating its effectiveness. The model lends itself to evaluation using precise performance measurements. CONCLUSIONS The live cadaver model presents a useful simulation of the conditions of live surgery for clipping cerebral aneurysms and managing intraoperative rupture. This model provides a means of practice and promotes team management of intraoperative cerebrovascular critical events. Precise metric measurement for evaluation of training performance improvement can be applied.
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Affiliation(s)
- Emad Aboud
- Arkansas Neuroscience Institute, St. Vincent Health System, Little Rock, Arkansas
| | - Ghaith Aboud
- Atlantic University, School of Medicine, Island Park, New York
| | - Ossama Al-Mefty
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Talal Aboud
- Atlantic University, School of Medicine, Island Park, New York
| | - Stylianos Rammos
- Arkansas Neuroscience Institute, St. Vincent Health System, Little Rock, Arkansas
| | - Mohammad Abolfotoh
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts;,Department of Neurosurgery, Ain Sham University, Cairo, Egypt
| | - Sanford P C Hsu
- Taipei Veterans General Hospital, National Yang-Ming University, Taipei, Taiwan
| | - Sebastian Koga
- International Neuroscience Institute, Hannover, Germany; and
| | - Adam Arthur
- Semmes-Murphey Neurologic and Spine Institute, and Department of Neurosurgery, University of Tennessee, Memphis, Tennessee
| | - Ali Krisht
- Arkansas Neuroscience Institute, St. Vincent Health System, Little Rock, Arkansas
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How do we maintain competence in aneurysm surgery. Acta Neurochir (Wien) 2015; 157:9-11. [PMID: 25391972 DOI: 10.1007/s00701-014-2265-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 10/22/2014] [Indexed: 10/24/2022]
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