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Surgical and Simulation

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https://www.readbyqxmd.com/read/29785084/impact-of-virtual-reality-simulation-on-learning-barriers-of-phacoemulsification-perceived-by-residents
#1
Danny Siu-Chun Ng, Zihan Sun, Alvin Lerrmann Young, Simon Tak-Chuen Ko, Jerry Ka-Hing Lok, Timothy Yuk-Yau Lai, Shameema Sikder, Clement C Tham
Objective: To identify residents' perceived barriers to learning phacoemulsification surgical procedures and to evaluate whether virtual reality simulation training changed these perceptions. Design: The ophthalmology residents undertook a simulation phacoemulsification course and proficiency assessment on the Eyesi system using the previously validated training modules of intracapsular navigation, anti-tremor, capsulorrhexis, and cracking/chopping. A cross-sectional, multicenter survey on the perceived difficulties in performing phacoemulsification tasks on patients, based on the validated International Council of Ophthalmology's Ophthalmology Surgical Competency Assessment Rubric (ICO-OSCAR), using a 5-point Likert scale (1 = least and 5 = most difficulty), was conducted among residents with or without prior simulation training...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29782617/patient-specific-neurosurgical-phantom-assessment-of-visual-quality-accuracy-and-scaling-effects
#2
Felipe Wilker Grillo, Victor Hugo Souza, Renan Hiroshi Matsuda, Carlo Rondinoni, Theo Zeferino Pavan, Oswaldo Baffa, Helio Rubens Machado, Antonio Adilton Oliveira Carneiro
Background: Training in medical education depends on the availability of standardized materials that can reliably mimic the human anatomy and physiology. One alternative to using cadavers or animal bodies is to employ phantoms or mimicking devices. Styrene-ethylene/butylene-styrene (SEBS) gels are biologically inert and present tunable properties, including mechanical properties that resemble the soft tissue. Therefore, SEBS is an alternative to develop a patient-specific phantom, that provides real visual and morphological experience during simulation-based neurosurgical training...
2018: 3D Print Med
https://www.readbyqxmd.com/read/29781590/3d-printed-aortic-stenosis-model-with-fragile-and-crushable-calcifications-for-off-the-job-training-and-surgical-simulation
#3
Takashi Shirakawa, Masao Yoshitatsu, Yasushi Koyama, Hiroki Mizoguchi, Koichi Toda, Yoshiki Sawa
Surgical simulation devices can be helpful and cost-effective adjuncts to on-the-job training. In this tutorial we present our method for creating an aortic stenosis model with realistically fragile and crushable calcifications, using modern 3D-printing techniques.  The model can be used for training and surgical simulation and is an effective aid to learning for young cardiovascular surgeons.
May 14, 2018: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/29780840/radial-tears-of-the-lateral-meniscus-two-novel-repair-techniques-a-biomechanical-study
#4
Zachary C Stender, Allison M Cracchiolo, Michael P Walsh, David P Patterson, Matthew J Wilusz, Stephen E Lemos
Background: A common treatment for radial tears of the meniscus has historically been partial meniscectomy. Owing to the poor outcomes associated with partial meniscectomy, repair of the meniscus is an important treatment option. It is important to evaluate different repair techniques for radial tears of the meniscus. Purpose/Hypothesis: The purpose of this study was to evaluate 2 novel techniques to repair radial tears of the lateral meniscus. The 2 techniques were compared biomechanically with the cross-suture method with an inside-out technique...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29780731/the-resident-s-point-of-view-in-the-learning-curve-of-thymic-mis-why-should-i-learn-it
#5
REVIEW
Anna E Frick, Hans Van Veer, Herbert Decaluwé, Willy Coosemans, Dirk Van Raemdonck
Minimally invasive surgery (MIS) in thoracic surgery became quite popular during the last years. The aim of introducing and performing more MIS is to reduce surgical trauma, pain and complications in patients. Training in MIS increases operative time and thus cost in theatre but thus improves with experience. For a resident, the cases should be well selected with experienced supervision in a suitable setting with supporting staff and optimal instruments. Understanding the anatomy of the lung, using simulators, and attending workshops makes the learning curve shorter...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29777617/simulation-in-urology-to-train-non-technical-skills-in-ward-rounds
#6
K Somasundram, H Spence, A J Colquhoun, C Mcilhenny, C S Biyani, S Jain
OBJECTIVE: We have designed an exercise to train newly appointed Urology trainees in non-technical skills on ward rounds as a part of a simulation 'boot camp'. This paper reports our experience, including a qualitative analysis of participant feedback on the utility of this method of training. PATIENTS AND METHODS: The simulations took place in a high-fidelity simulated ward bay. Forty-eight doctors with formal Urology training ranging between 2-60 months (mean 19...
May 19, 2018: BJU International
https://www.readbyqxmd.com/read/29776351/a-computational-study-of-hedgehog-signalling-involved-in-basal-cell-carcinoma-reveals-the-potential-and-limitation-of-combination-therapy
#7
Antoine Buetti-Dinh, Rebecca Jensen, Ran Friedman
BACKGROUND: The smoothened (SMO) receptor is an essential component of the Sonic hedgehog (SHH) signalling, which is associated with the development of skin basal cell carcinoma (BCC). SMO inhibitors are indicated for BCC patients when surgical treatment or radiation therapy are not possible. Unfortunately, SMO inhibitors are not always well tolerated due to severe side effects, and their therapeutical success is limited by resistance mutations. METHODS: We investigated how common are resistance-causing mutations in two genomic databases which are not linked to BCC or other cancers, namely 1000 Genomes and ExAC...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29774439/surgical-education-simulation-and-simulators-updating-the-concept-of-validity
#8
REVIEW
Mitchell Goldenberg, Jason Y Lee
PURPOSE OF REVIEW: Competency-based medical education (CBME) is rooted in the use of iterative assessments. We must ensure that the assessments used in CBME are valid, to make acceptable and accurate decisions regarding the competency of a trainee. Until recently, much of the educational and assessment literature in urology have used a now-outdated method of determining validity, based on theory and recommendations from over 50 years ago. We describe a contemporary approach to gathering construct validity evidence for the assessment of urologic trainees, for use in both clinical and simulation environments...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774184/a-systematic-review-of-clinical-value-of-three-dimensional-printing-in-renal-disease
#9
Zhonghua Sun, Dongting Liu
The aim of this systematic review is to analyse current literature related to the clinical value of three-dimensional (3D) printed models in renal disease. A literature search of PubMed and Scopus databases was performed to identify studies reporting the clinical application and usefulness of 3D printed models in renal disease. Fifteen studies were found to meet the selection criteria and were included in the analysis. Eight of them provided quantitative assessments with five studies focusing on dimensional accuracy of 3D printed models in replicating renal anatomy and tumour, and on measuring tumour volume between 3D printed models and original source images and surgical specimens, with mean difference less than 10%...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29773409/correlation-of-objective-assessment-data-with-general-surgery-resident-in-training-evaluation-reports-and-operative-volumes
#10
Jad M Abdelsattar, Yazan N AlJamal, Raaj K Ruparel, Phillip G Rowse, Stephanie F Heller, David R Farley
OBJECTIVE: Faculty evaluations, ABSITE scores, and operative case volumes often tell little about true resident performance. We developed an objective structured clinical examination called the Surgical X-Games (5 rooms, 15 minutes each, 12-15 tests total, different for each postgraduate [PGY] level). We hypothesized that performance in X-Games will prove more useful in identifying areas of strength or weakness among general surgery (GS) residents than faculty evaluations, ABSITE scores, or operative cases volumes...
May 14, 2018: Journal of Surgical Education
https://www.readbyqxmd.com/read/29772927/design-and-simulation-of-novel-laparoscopic-renal-denervation-system-a-feasibility-study
#11
Eunbi Ye, Jinhwan Baik, Seunghyun Lee, Seon Young Ryu, Sunchoel Yang, Eue-Keun Choi, Won Hoon Song, Hyeong Dong Yuk, Chang Wook Jeong, Sung-Min Park
PURPOSE: In this study, we propose a novel laparoscopy-based renal denervation (RDN) system for treating patients with resistant hypertension. In this feasibility study, we investigated whether our proposed surgical instrument can ablate renal nerves from outside of the renal artery safely and effectively and can overcome the depth-related limitations of the previous catheter-based system with less damage to the arterial walls. METHOD: We designed a looped bipolar electrosurgical instrument to be used with laparoscopy-based RDN system...
May 18, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29770183/colour-for-behavioural-success
#12
Birgitta Dresp-Langley, Adam Reeves
Colour information not only helps sustain the survival of animal species by guiding sexual selection and foraging behaviour but also is an important factor in the cultural and technological development of our own species. This is illustrated by examples from the visual arts and from state-of-the-art imaging technology, where the strategic use of colour has become a powerful tool for guiding the planning and execution of interventional procedures. The functional role of colour information in terms of its potential benefits to behavioural success across the species is addressed in the introduction here to clarify why colour perception may have evolved to generate behavioural success...
March 2018: I-Perception
https://www.readbyqxmd.com/read/29769371/how-are-we-currently-training-and-maintaining-clinical-readiness-of-us-and-uk-military-surgeons-responsible-for-managing-head-face-and-neck-wounds-on-deployment
#13
John Breeze, J G Combes, J DuBose, D B Powers
INTRODUCTION: The conflicts in Iraq and Afghanistan provided military surgeons from the USA and the UK with extensive experience into the management of injuries to the head, face and neck (HFN) from high energy bullets and explosive weaponry. The challenge is now to maintain the expertise in managing such injuries for future military deployments. METHODS: The manner in which each country approaches four parameters required for a surgeon to competently treat HFN wounds in deployed military environments was compared...
May 16, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29768357/dysembryoplastic-neuroepithelial-tumor-like-pilocytic-astrocytoma-a-case-report
#14
Jia-Ming Liao, Wei Wang, Jing Xie, Hai-Bo Wu
RATIONALE: Pilocytic astrocytoma (PA) typically shows biphasic pattern with a mixture of loose microcystic and compact regions, in which it is not uncommon to see heterogeneous morphology. However, there has not been reported in the literatures of the PA type that shows similarity to dysembryoplastic neuroepithelial tumor (DNT) in both histological morphology and immunophenotype. PATIENT CONCERNS: The present study described a case of PA affecting the right temporal-occipital lobe in a 22-year-old male patient...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29766307/the-laparoscopic-inguinal-and-diaphragmatic-defect-lidd-model-a-validation-study-of-a-novel-box-trainer-model
#15
Damir Ljuhar, Samuel Alexander, Sarah Martin, Ramesh Nataraja
BACKGROUND: Paediatric laparoscopic procedures are now becoming routine practice. Therefore, there is a need for simulated laparoscopic models to acquire part-procedural competency prior to direct patient contact in a safe learning environment. For this reason, we chose two paediatric conditions; inguinal hernia (IH) and congenital diaphragmatic hernia (CDH), which were combined to create the laparoscopic inguinal and diaphragmatic defect (LIDD) model. Our aim was to assess this novel surgical simulation model by determining its construct and content validity...
May 15, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29765951/advanced-midzonal-iris-pigment-epithelial-cyst-managed-by-aspiration-deflation
#16
Jerry A Shields, Samuel J Fallon, Charlotte Nelle Shields, Sara E Lally, Carol L Shields
Background: There are several cysts that can occur in the iris. The midzonal (retroiridic) iris pigment epithelial (IPE) cyst is important because it can simulate melanoma of the ciliary body. However, it is frequently asymptomatic and requires no treatment. Methods: A 37-year-old asymptomatic woman with visual acuity of 20/20 in each eye was found to have an elevated mass behind the left iris, presumed to be melanoma, and was referred for management. On our examination, there was a typical midzonal IPE cyst in the left eye (OS), requiring observation without intervention...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29765945/atypical-fibroxanthoma-of-the-bulbar-conjunctiva-a-unique-case-describing-the-pathology-clinical-presentation-and-management
#17
Justin Kuiper, Ankit Shah, Rebecca Kuennen, Lynn Schoenfield
Background/Aims: Atypical fibroxanthoma is an uncommon tumor that usually occurs in the skin of the head and neck of the elderly with significant sun exposure. We describe a unique case featuring a rare ocular surface conjunctival tumor (atypical fibroxanthoma) and provide insight on its characteristic clinical features, surgical management, and histology. Methods: A 71-year-old male fisherman with no pertinent ocular history presented to an academic center with a rapidly enlarging bulbar conjunctival mass in the right perilimbal region for the past several months...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29765445/augmented-reality-in-neurosurgery
#18
Raniel Tagaytayan, Arpad Kelemen, Cecilia Sik-Lanyi
Neurosurgery is a medical specialty that relies heavily on imaging. The use of computed tomography and magnetic resonance images during preoperative planning and intraoperative surgical navigation is vital to the success of the surgery and positive patient outcome. Augmented reality application in neurosurgery has the potential to revolutionize and change the way neurosurgeons plan and perform surgical procedures in the future. Augmented reality technology is currently commercially available for neurosurgery for simulation and training...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29764028/-application-of-3d-virtual-reality-technology-with-multi-modality-fusion-in-resection-of-glioma-located-in-central-sulcus-region
#19
T N Chen, X T Yin, X G Li, J Zhao, L Wang, N Mu, K Ma, K Huo, D Liu, B Y Gao, H Feng, F Li
Objective: To explore the clinical and teaching application value of virtual reality technology in preoperative planning and intraoperative guide of glioma located in central sulcus region. Method: Ten patients with glioma in the central sulcus region were proposed to surgical treatment. The neuro-imaging data, including CT, CTA, DSA, MRI, fMRI were input to 3dgo sczhry workstation for image fusion and 3D reconstruction. Spatial relationships between the lesions and the surrounding structures on the virtual reality image were obtained...
May 8, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29762452/the-use-of-expanded-polytetrafluoroethylene-in-short-nose-elongation-fourteen-years-of-clinical-experience
#20
Jiao Wei, Tanja Herrler, Ning Deng, Hua Xu, Bowen Shi, Chuanchang Dai
BACKGROUND: Short nose elongation is a relatively common rhinoplasty procedure, especially in Asia. The selection of the adequate graft material is challenging. Previous reports have described the application of expanded polytetrafluoroethylene (ePTFE) for dorsal augmentation rhinoplasty, but studies using ePTFE for nose elongation are lacking. We propose ePTFE as an alternative treatment for short noses, describe the technique, and discuss outcomes, patient selection, and complications based on our 14-year experience...
May 14, 2018: Annals of Plastic Surgery
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