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Simulation in surgery

D Yu Pushkar, A V Govorov, P I Rasner, K B Kolontarev
No abstract text is available yet for this article.
2018: Khirurgiia
David L Joyce, Brian D Lahr, Simon Maltais, Sameh M Said, John M Stulak, Gregory A Nuttall, Lyle D Joyce
OBJECTIVES: Simulation in resident medical education has traditionally focused on isolated components of a surgical procedure. We hypothesized that incorporating an interdisciplinary team into a high-fidelity simulation laboratory would enhance the modeling of real-world challenges during cardiac surgery. METHODS: Simulation exercises were performed with staffing by surgeons, anesthesiologists, perfusionists, surgical assistants, and operating room technicians. Twelve accredited cardiothoracic surgical residents were divided into 3 teams...
February 13, 2018: Journal of Thoracic and Cardiovascular Surgery
Elif Bilgic, Madoka Takao, Pepa Kaneva, Satoshi Endo, Toshitatsu Takao, Yusuke Watanabe, Katherine M McKendy, Liane S Feldman, Melina C Vassiliou
BACKGROUND: Needs assessment identified a gap regarding laparoscopic suturing skills targeted in simulation. This study collected validity evidence for an advanced laparoscopic suturing task using an Endo StitchTM device. METHODS: Experienced (ES) and novice surgeons (NS) performed continuous suturing after watching an instructional video. Scores were based on time and accuracy, and Global Operative Assessment of Laparoscopic Surgery. Data are shown as medians [25th-75th percentiles] (ES vs NS)...
March 1, 2018: Surgical Innovation
Yang Hou, Yanping Lin, Jiangang Shi, Huajiang Chen, Wen Yuan
BACKGROUND: The virtual simulation surgery has initially exhibited its promising potentials in neurosurgery training. OBJECTIVE: To evaluate effectiveness of the Virtual Surgical Training System (VSTS) on novice residents placing thoracic pedicle screws in a cadaver study. METHODS: A total of 10 inexperienced residents participated in this study and were randomly assigned to 2 groups. The group using VSTS to learn thoracic pedicle screw fixation was the simulation training (ST) group and the group receiving an introductory teaching session was the control group...
March 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
Qiaomu Tian, Jose Antonio Mendez, Laura Rivera-Castaneda, Omar Mahmood, Adam Showalter, Elizabeth Ang, Sarah Kazmi, Huinan Liu
Medical implants play a key role in treating bone fractures. Permanent implants are currently used for immobilization of fractures and bearing physiological loads during bone healing. After bone has healed, these implants, if not removed, often cause complications in the long run; and secondary surgeries for removing them pose additional discomfort and expenses for patients. Magnesium (Mg)-based bioresorbable implants, can potentially eliminate the need for additional surgeries by degrading safely over time in the human body...
April 15, 2018: Materials Letters
Micha Pfeiffer, Hannes Kenngott, Anas Preukschas, Matthias Huber, Lisa Bettscheider, Beat Müller-Stich, Stefanie Speidel
PURPOSE: The data which is available to surgeons before, during and after surgery is steadily increasing in quantity as well as diversity. When planning a patient's treatment, this large amount of information can be difficult to interpret. To aid in processing the information, new methods need to be found to present multimodal patient data, ideally combining textual, imagery, temporal and 3D data in a holistic and context-aware system. METHODS: We present an open-source framework which allows handling of patient data in a virtual reality (VR) environment...
March 17, 2018: International Journal of Computer Assisted Radiology and Surgery
Wen-Tso Huang, Ping-Shun Chen, John J Liu, Yi-Ru Chen, Yen-Hsin Chen
Scheduling approaches for conventional surgery operating rooms in a hospital treat surgeons as bottleneck resources directly, but do not deal with stochastic medical resources, leading to an uneven human resource distribution in optimizing medical resource scheduling. Thus, this research focuses on the dynamic configuration scheduling problem for stochastic medical resources. In this paper, the surgical operating room is limited, and the arriving calls (i.e., number of patients) are dynamic. When a patient arrives, the nurse anesthetist and anesthesiologist are limited, but the medical service duration per patient is random...
March 13, 2018: Journal of Biomedical Informatics
Tsutomu Nomura, Munetaka Ushio, Kenji Kondo, Shigeru Kikuchi
OBJECTIVE: The purpose of this research is to examine the changes in nasal airflow dynamics before and after the nasal perforation repair. METHODS: Three dimensional (3D) models of the nasal cavity before and after septal perforation repair was reconstructed using preoperative and postoperative computed tomography (CT) images of a patient. The numerical simulation was carried out using ANSYS CFX V15.0. Pre- and post-operative models were compared by their velocity, pressure (P), pressure gradient (PG), wall shear (WS), shear strain rate (SSR) and turbulence kinetic energy (TKE) in three plains...
March 13, 2018: Auris, Nasus, Larynx
P Stefan, M Pfandler, P Wucherer, S Habert, J Fürmetz, S Weidert, E Euler, U Eck, M Lazarovici, M Weigl, N Navab
Surgical simulators are being increasingly used as an attractive alternative to clinical training in addition to conventional animal models and human specimens. Typically, surgical simulation technology is designed for the purpose of teaching technical surgical skills (so-called task trainers). Simulator training in surgery is therefore in general limited to the individual training of the surgeon and disregards the participation of the rest of the surgical team. The objective of the project Assessment and Training of Medical Experts based on Objective Standards (ATMEOS) is to develop an immersive simulated operating room environment that enables the training and assessment of multidisciplinary surgical teams under various conditions...
March 15, 2018: Der Unfallchirurg
Long Chen, Wen Tang, Nigel W John, Tao Ruan Wan, Jian Jun Zhang
BACKGROUND AND OBJECTIVE: While Minimally Invasive Surgery (MIS) offers considerable benefits to patients, it also imposes big challenges on a surgeon's performance due to well-known issues and restrictions associated with the field of view (FOV), hand-eye misalignment and disorientation, as well as the lack of stereoscopic depth perception in monocular endoscopy. Augmented Reality (AR) technology can help to overcome these limitations by augmenting the real scene with annotations, labels, tumour measurements or even a 3D reconstruction of anatomy structures at the target surgical locations...
May 2018: Computer Methods and Programs in Biomedicine
Chengshuai Yang, Shunyao Shen, Jingyang Wu, Shilei Zhang
Mandibular reconstruction after partial or subtotal resection is considered a challenging procedure that is crucial for facial contour and function. Many reports regarding the reconstruction of mandibular defects have been published over the years. The fibula free flap has become a popular option for mandibular reconstruction since its introduction by Hidalgo in 1989. However, the locations of the reconstructed mandibular angle and the condyle of the fibular bone segments play a crucial role in facial symmetry and function...
February 20, 2018: Journal of Oral and Maxillofacial Surgery
Zhongkui Wang, Masamitsu Kido, Kan Imai, Kazuya Ikoma, Shinichi Hirai
Clinically in medializing calcaneal osteotomy (MCO), foot and ankle surgeons are facing difficulties in choosing appropriate surgical parameters due to the individual differences in deformities among flatfoot patients. Traditional cadaveric studies have provided important information regarding the biomechanical effects of tendons, ligaments, and plantar fascia, but limitations have been reached when dealing with individual differences and tailoring patient-specific surgeries. Therefore, this study aimed at implementing the finite element (FE) method to investigate the effect of different MCO parameters to help foot and ankle surgeons performing patient-specific surgeries...
March 15, 2018: Computer Methods in Biomechanics and Biomedical Engineering
Andrea Moglia, Luca Morelli, Vincenzo Ferrari, Mauro Ferrari, Franco Mosca, Alfred Cuschieri
BACKGROUND: There is an increasing interest for a test assessing objectively the innate aptitude for surgery as a craft specialty to complement the current selection process of surgical residents. The aim of this study was to quantify the size of individuals with high, average, and low level of innate psychomotor skills among medical students. METHODS: A volunteer sample of 155 medical students, without prior experience with surgical simulator, executed five tasks at a virtual simulator for robot-assisted surgery...
March 14, 2018: Surgical Endoscopy
Yojiro Makino, Yoshihisa Shimada, Masaru Hagiwara, Masatoshi Kakihana, Jinho Park, Naohiro Kajiwara, Tatsuo Ohira, Norihiko Ikeda
OBJECTIVES: Emphysema is one of the main causes of respiratory complications in patients operated on for lung cancer. We have used three-dimensional computed tomography (3D CT) for surgical simulations, as well as for depicting emphysematous areas as low attenuation areas (LAAs) and visual scores based on the Goddard classification (Goddard score), which is a visual scale of the area of vascular disruption and LAA for each lung field. This study aimed to investigate the effectiveness of the 3D CT function for assessing emphysema severity and its association with respiratory complications...
March 12, 2018: European Journal of Cardio-thoracic Surgery
Temitope Adebayo, Michael Abendroth, Gaytri Gupta Elera, Allen Kunselman, Elizabeth Sinz, Amanda Ely, Amr Elkamshoushy, Ajay Soni
PURPOSE: To demonstrate that a nonbiologic strabismus surgery simulator is not inferior to a biologic wet lab for teaching the key steps of strabismus surgery. METHODS: A total of 41 medical students were randomly assigned to one of two groups: biologic wet lab or nonbiologic simulator. The students trained according to the group's protocol then participated in a recorded final assessment using a realistic strabismus surgery model. Two independent reviewers, masked to training method, graded the video recordings using three scoring systems: the International Council of Ophthalmology Approved-Ophthalmology Surgical Competency Assessment Rubric for Strabismus Surgery (ICO-OSCAR), the Global Rating Scale of Objective Structured Assessment of Technical Skills (OSATS), and the Alphabetic Summary Scale (ASS)...
March 10, 2018: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Richard C Mather, Shane J Nho, Andrew Federer, Berna Demiralp, Jennifer Nguyen, Asha Saavoss, Michael J Salata, Marc J Philippon, Asheesh Bedi, Christopher M Larson, J W Thomas Byrd, Lane Koenig
BACKGROUND: The diagnosis and treatment of femoroacetabular impingement (FAI) have increased steadily within the past decade, and research indicates clinically significant improvements after treatment of FAI with hip arthroscopy. PURPOSE: This study examined the societal and economic impact of hip arthroscopy by high-volume surgeons for patients with FAI syndrome aged <50 years with noncontroversial diagnosis and indications for surgery. STUDY DESIGN: Economic and decision analysis; Level of evidence, 2...
March 1, 2018: American Journal of Sports Medicine
Jason D Pasley, William A Teeter, William B Gamble, Philip Wasick, Anna N Romagnoli, Amelia M Pasley, Thomas M Scalea, Megan L Brenner
BACKGROUND: The management of noncompressible torso hemorrhage remains a significant issue at the point of injury. Resuscitative endovascular balloon occlusion of the aorta (REBOA) has been used in the hospital to control bleeding and bridge patients to definitive surgery. Smaller delivery systems and wirefree devices may be used more easily at the point of injury by nonphysician providers. We investigated whether independent duty military medical technicians (IDMTs) could learn and perform REBOA correctly and rapidly as assessed by simulation...
2018: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
Hisanaga Horie, Koji Koinuma, Homare Ito, Ai Sadatomo, Daishi Naoi, Yoshihiko Kono, Yoshiyuki Inoue, Mitsuaki Morimoto, Makiko Tahara, Alan K Lefor, Naohiro Sata, Takahiro Sasaki, Hideharu Sugimoto
INTRODUCTION: Laparoscopic lateral pelvic lymph node dissection (LPLD) is technically challenging because of the complicated anatomy of the pelvic wall. To overcome this difficulty, we introduced preoperative 3-D simulation. The aim of the study is to investigate the usefulness of preoperative 3-D simulation for the safe conduct of laparoscopic LPLD for rectal cancer. METHODS: After undergoing colonoscopy, patients were brought to the radiology suite where multi-detector row CT was performed...
March 12, 2018: Asian Journal of Endoscopic Surgery
Morteza Modarresi Asem, Iman Sheikh Oveisi, Mona Janbozorgi
Retinal blood vessels indicate some serious health ramifications, such as cardiovascular disease and stroke. Thanks to modern imaging technology, high-resolution images provide detailed information to help analyze retinal vascular features before symptoms associated with such conditions fully develop. Additionally, these retinal images can be used by ophthalmologists to facilitate diagnosis and the procedures of eye surgery. A fuzzy noise reduction algorithm was employed to enhance color images corrupted by Gaussian noise...
July 2018: Journal of Medical Imaging
Jessica A Zaman, Tejender Paul Singh
Though laparoscopic cholecystectomy (LC) was highly criticized in its early stages, it quickly grew to become a new standard of care and has revolutionized the field of general surgery. Now emerging robotic technology is making its way into the minimally invasive arena. Robotic cholecystectomy (RC) is often disparaged as a costly technology that can lead to increased operative times with outcomes that are quite similar to LC. However, this perspective is skewed as many existing studies were performed in the early phase of learning for this procedure...
February 2018: Hepatobiliary Surgery and Nutrition
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