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https://www.readbyqxmd.com/read/29052706/association-of-an-electroencephalography-based-risk-score-with-seizure-probability-in-hospitalized-patients
#1
Aaron F Struck, Berk Ustun, Andres Rodriguez Ruiz, Jong Woo Lee, Suzette M LaRoche, Lawrence J Hirsch, Emily J Gilmore, Jan Vlachy, Hiba Arif Haider, Cynthia Rudin, M Brandon Westover
Importance: Continuous electroencephalography (EEG) use in critically ill patients is expanding. There is no validated method to combine risk factors and guide clinicians in assessing seizure risk. Objective: To use seizure risk factors from EEG and clinical history to create a simple scoring system associated with the probability of seizures in patients with acute illness. Design, Setting, and Participants: We used a prospective multicenter (Emory University Hospital, Brigham and Women's Hospital, and Yale University Hospital) database containing clinical and electrographic variables on 5427 continuous EEG sessions from eligible patients if they had continuous EEG for clinical indications, excluding epilepsy monitoring unit admissions...
October 9, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29052071/validation-of-the-vblast-pattern-cutting-task-a-learning-curve-study
#2
Ali M Linsk, Kimberley R Monden, Ganesh Sankaranarayanan, Woojin Ahn, Daniel B Jones, Suvranu De, Steven D Schwaitzberg, Caroline G L Cao
BACKGROUND: Mastery of laparoscopic skills is essential in surgical practice and requires considerable time and effort to achieve. The Virtual Basic Laparoscopic Skill Trainer (VBLaST-PC(©)) is a virtual simulator that was developed as a computerized version of the pattern cutting (PC) task in the Fundamentals of Laparoscopic Surgery (FLS) system. To establish convergent validity for the VBLaST-PC(©), we assessed trainees' learning curves using the cumulative summation (CUSUM) method and compared them with those on the FLS...
October 19, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29049549/transapical-cardioscopic-mitral-annuloplasty-a-short-term-survival-study-in-a-porcine-model
#3
Thang Duc Vu, Min Zin Oo, Duc-Viet Nguyen, Ervin Marquez Ocampo, Yilin Ong, Suganya Cheyyatraivendran-Arularasu, Lian-Kah Ti, Mark A Richards, Theo Kofidis
OBJECTIVES: The transapical approach provides concurrent surgical access to the mitral and the aortic valves, the root of the aorta and the left atrium. We previously showed the feasibility of transapical cardioscopic (TAC) surgery in a non-survival porcine model. However, reproducibility and feasibility of ring implantation using TAC have not been reported. Therefore, in this study, we hypothesized that implantation of a mitral annuloplasty ring can be feasibly and safely carried out endoscopically via the apex of the heart...
August 30, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049326/a-new-machine-learning-method-to-prognosticate-paraquat-poisoned-patients-by-combining-coagulation-liver-and-kidney-indices
#4
Lufeng Hu, Huaizhong Li, Zhennao Cai, Feiyan Lin, Guangliang Hong, Huiling Chen, Zhongqiu Lu
The prognosis of paraquat (PQ) poisoning is highly correlated to plasma PQ concentration, which has been identified as the most important index in PQ poisoning. This study investigated the predictive value of coagulation, liver, and kidney indices in prognosticating PQ-poisoning patients, when aligned with plasma PQ concentrations. Coagulation, liver, and kidney indices were first analyzed by variance analysis, receiver operating characteristic curves, and Fisher discriminant analysis. Then, a new, intelligent, machine learning-based system was established to effectively provide prognostic analysis of PQ-poisoning patients based on a combination of the aforementioned indices...
2017: PloS One
https://www.readbyqxmd.com/read/29049148/skull-base-neuroendoscopic-training-model-using-a-fibrous-injectable-tumor-polymer-and-the-nico-myriad
#5
Filippo Gagliardi, Anthony M Chau, Pietro Mortini, Anthony J Caputy, Cristian Gragnaniello
The Myriad is an innovative, high precision tool for tumor resection, designed to work within narrow endoscopic corridors. Due to its application in technically demanding situations, the learning curve associated with its use might be extremely challenging and time-consuming.The authors describe the application of an already validated training model, the skull base injectable tumor model (ITM), to allow trainees to practice with the use of the Myriad during endoscopic skull base procedures.A formalin embalmed cadaveric head was used for technical assessment...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29049081/mentor-tutoring-an-efficient-method-for-teaching-laparoscopic-colorectal-surgical-skills-in-a-general-hospital
#6
Nobuki Ichikawa, Shigenori Homma, Tadashi Yoshida, Yosuke Ohno, Hideki Kawamura, Kazuki Wakizaka, Kazuaki Nakanishi, Keizo Kazui, Hiroaki Iijima, Hiroki Shomura, Tohru Funakoshi, Shiro Nakano, Akinobu Taketomi
OBJECTIVE: We retrospectively assessed the efficacy of our mentor tutoring system for teaching laparoscopic colorectal surgical skills in a general hospital. MATERIALS AND METHODS: A series of 55 laparoscopic colectomies performed by 1 trainee were evaluated. Next, the learning curves for high anterior resection performed by the trainee (n=20) were compared with those of a self-trained surgeon (n=19). RESULTS: Cumulative sum analysis and multivariate regression analyses showed that 38 completed cases were needed to reduce the operative time...
October 18, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29048979/comparison-of-single-port-percutaneous-extraperitoneal-repair-and-three-port-mini-laparoscopic-repair-for-pediatric-inguinal-hernia
#7
Mevlit Korkmaz, Haluk B Güvenç
AIM: Laparoscopy has been widely used in surgical practice in pediatric age, and many techniques for laparoscopic hernia repair have been described till now. In this study, we compared two laparoscopic techniques performed by two surgeons; each surgeon practicing only one of the two techniques. MATERIALS AND METHODS: A retrospective analysis was performed on the surgical charts, enrolling 71 patients with uncomplicated inguinal hernia. Patients were divided into two groups according to the type of surgery: (Group A, 24 patients aged 2 months-8 years) laparoscopic percutaneous internal ring suturing technique and (Group B, 47 patients aged 35 days-12 years) three-port mini-laparoscopic technique...
October 19, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29048696/the-direct-anterior-minimal-invasive-approach-in-total-hip-replacement-a-prospective-departmental-study-on-the-learning-curve
#8
Ole-Christian L Brun, Lukas Månsson, Lars Nordsletten
INTRODUCTION: Introduction of new surgical techniques is normal, but seldom monitored in real time. The purpose of this study was to monitor the learning curve when introducing a new surgical technique to a department. We did a prospective evaluation of the learning curve when introducing the minimally invasive direct anterior approach in total hip arthroplasty. We wish to investigate whether there is a learning curve for the direct anterior minimal invasive approach in total hip replacement and what are the early complications to this approach...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048214/validation-of-a-full-immersion-simulation-platform-for-percutaneous-nephrolithotomy-using-3d-printing-technology
#9
Ahmed Ghazi, Timothy Campbell, Rachel Melnyk, Changyong Feng, Alex Andrusco, Jonathan Stone, Erdal Erturk
INTRODUCTION AND OBJECTIVES: The restriction of resident hours with an increasing focus on patient safety and a reduced caseload has impacted surgical training. A complex and complication prone procedure such as percutaneous nephrolithotomy (PCNL) with a steep learning curve may create an unsafe environment for hands-on resident training. In this study, we validate a high fidelity, inanimate PCNL model within a full immersion simulation environment. METHODS: Anatomically correct models of the human pelvicalyceal system (PCS), kidney, and relevant adjacent structures were created using poly-vinyl alcohol (PVA) hydrogels and 3D-printed injection molds...
October 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29048202/editorial-comment-for-zhang-et-al-end-2017-0095-or-r1
#10
Peter John Gilling
Since HoLEP was first described 20 years ago[1] there have been an increasing number of energy sources and techniques described to endoscopically enucleate the prostatic adenoma for BPH management [2]. Robotic-assisted laparoscopic techniques have developed in parallel, largely driven by Radical Prostatectomy for prostate cancer treatment, but recently applied to simple prostatectomy for BPH [3]. Both HoLEP and RASP are most compelling when applied to large prostates (>80g) when procedures such as TURP and Vaporization become less justifiable on both safety and efficacy grounds...
October 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29047033/characterization-of-pulmonary-nodules-based-on-features-of-margin-sharpness-and-texture
#11
José Raniery Ferreira, Marcelo Costa Oliveira, Paulo Mazzoncini de Azevedo-Marques
Lung cancer is the leading cause of cancer-related deaths in the world, and one of its manifestations occurs with the appearance of pulmonary nodules. The classification of pulmonary nodules may be a complex task to specialists due to temporal, subjective, and qualitative aspects. Therefore, it is important to integrate computational tools to the early pulmonary nodule classification process, since they have the potential to characterize objectively and quantitatively the lesions. In this context, the goal of this work is to perform the classification of pulmonary nodules based on image features of texture and margin sharpness...
October 18, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29046931/hip-arthroscopy-learning-curve-a-prospective-single-surgeon-study
#12
Jakub Kautzner, Petr Zeman, Andrej Stančák, Vojtěch Havlas
PURPOSE: Arthroscopy of the hip joint is considered a demanding procedure with long learning curve. There are only a few studies that concentrate on this topic. This prospective clinical study evaluates the learning curve of the hip arthroscopy based on clinical outcomes, surgical time, and complication rate. MATERIALS: In this study, we first evaluated 150 hip arthroscopy procedures performed by a single surgeon. The patient group consisted of 86 females and 64 males with mean age 37 years (range 16-69)...
October 18, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29046621/applying-a-statistical-method-in-transvaginal-ultrasound-training-lessons-from-the-learning-curve-cumulative-summation-test-lc-cusum-for-endometriosis-mapping
#13
Vered H Eisenberg, Juan L Alcazar, Nissim Arbib, Eyal Schiff, Reuven Achiron, Motti Goldenberg, David Soriano
BACKGROUND: Methods available for assessing the learning curve, such as a predefined number of procedures or direct mentoring are lacking. Our aim was to describe the use of a statistical method to identify the minimal training length of an experienced sonographer, newly trained in deep infiltrating endometriosis (DIE) mapping by evaluating the learning curve of transvaginal ultrasound (TVUS) in the preoperative assessment of endometriosis. METHODS: A retrospective study in a tertiary referral center for endometriosis...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/29046091/crossing-the-bridge-to-vats-lobectomy
#14
P Tcherveniakov, C Bogdan, N Chaudhuri
Introduction The impact of the introduction of video assisted thoracoscopic surgery (VATS) on the management of lung cancer 20 years ago has been well documented. However, the uptake of VATS lobectomy in surgical practice worldwide has been slower than expected. We believe that this is partly due to a lack of consensus on how this procedure should be integrated into training programmes. We present our initial experience with a newly developed training model, which could help bridge the divide between open and VATS lobectomy...
October 19, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29045194/testing-an-aac-system-that-transforms-pictograms-into-natural-language-with-persons-with-cerebral-palsy
#15
Joan Pahisa-Solé, Jordi Herrera-Joancomartí
In this paper, we describe a compansion system that transforms the telegraphic language that comes from the use of pictogram-based Augmentative and Alternative Communication (AAC) into natural language. The system was tested with 4 participants with severe cerebral palsy and ranging degrees of linguistic competence and intellectual disabilities. Participants had used pictogram-based AAC at least for the past 30 years each and presented a stable linguistic profile. During tests, which consisted in a total of 40 sessions, participants were able to learn new linguistic skills, such as the use of basic verb tenses, while using the compansion system, which proved a source of motivation...
October 18, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/29038859/refashioned-lamb-tissue-as-an-animal-model-for-training-complex-techniques-of-laryngotracheal-stenosis-surgery
#16
Lluís Nisa, Pedro Teiga, Gustavo Barreto da Cunha, Biswanath Roy, Riza Onder Gunaydin, Kishore Sandu
Open reconstructive upper airway surgery for laryngotracheal stenosis (LTS), whether for subglottic or tracheal stenosis, constitutes a group of complex approaches. LTS requiring open reconstruction is overall rare and primarily performed at tertiary centres. This poses an obvious challenge for the acquisition and maintenance of surgical skills for this group of complex approaches. In this context, animal models provide a unique opportunity for open reconstructive airway surgery training. Such models ought to take into consideration ethical aspects, be easily available and easy to maintain, and have similar macroscopic anatomical features to the human laryngotracheal frame...
October 16, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29038651/classification-of-suicide-attempts-through-a-machine-learning-algorithm-based-on-multiple-systemic-psychiatric-scales
#17
Jihoon Oh, Kyongsik Yun, Ji-Hyun Hwang, Jeong-Ho Chae
Classification and prediction of suicide attempts in high-risk groups is important for preventing suicide. The purpose of this study was to investigate whether the information from multiple clinical scales has classification power for identifying actual suicide attempts. Patients with depression and anxiety disorders (N = 573) were included, and each participant completed 31 self-report psychiatric scales and questionnaires about their history of suicide attempts. We then trained an artificial neural network classifier with 41 variables (31 psychiatric scales and 10 sociodemographic elements) and ranked the contribution of each variable for the classification of suicide attempts...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29036877/a-hybrid-cnn-feature-model-for-pulmonary-nodule-malignancy-risk-differentiation
#18
Huafeng Wang, Tingting Zhao, Lihong Connie Li, Haixia Pan, Wanquan Liu, Haoqi Gao, Fangfang Han, Yuehai Wang, YiFang Qi, Zhengrong Liang
The malignancy risk differentiation of pulmonary nodule is one of the most challenge tasks of computer-aided diagnosis (CADx). Most recently reported CADx methods or schemes based on texture and shape estimation have shown relatively satisfactory on differentiating the risk level of malignancy among the nodules detected in lung cancer screening. However, the existing CADx schemes tend to detect and analyze characteristics of pulmonary nodules from a statistical perspective according to local features only. Enlightened by the currently prevailing learning ability of convolutional neural network (CNN), which simulates human neural network for target recognition and our previously research on texture features, we present a hybrid model that takes into consideration of both global and local features for pulmonary nodule differentiation using the largest public database founded by the Lung Image Database Consortium and Image Database Resource Initiative (LIDC-IDRI)...
October 10, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29036382/musitedeep-a-deep-learning-framework-for-general-and-kinase-specific-phosphorylation-site-prediction
#19
Duolin Wang, Shuai Zeng, Chunhui Xu, Wangren Qiu, Yanchun Liang, Trupti Joshi, Dong Xu
Motivation: Computational methods for phosphorylation site prediction play important roles in protein function studies and experimental design. Most existing methods are based on feature extraction, which may result in incomplete or biased features. Deep learning as the cutting-edge machine learning method has the ability to automatically discover complex representations of phosphorylation patterns from the raw sequences, and hence it provides a powerful tool for improvement of phosphorylation site prediction...
August 3, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29035609/single-surgeon-experience-and-complications-of-a-fixed-bearing-total-ankle-arthroplasty
#20
Garett J Pangrazzi, Erin A Baker, Phillip J Shaheen, Chikezie N Okeagu, Paul T Fortin
BACKGROUND: Total ankle arthroplasty (TAA) has historically resulted in inferior survivorship rates compared with total hip and knee arthroplasty, because of technical issues unique to ankle anatomy. In this study, a single-surgeon series of intra- and postoperative complications as well as resultant reoperations/revisions of the Tornier Salto Talaris, a fixed-bearing TAA prosthesis, were reviewed. METHODS: Medical records from index procedure to latest follow-up of primary TAA were reviewed...
October 1, 2017: Foot & Ankle International
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