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https://www.readbyqxmd.com/read/28231373/auricular-complications-in-parotid-temporal-bone-infratemporal-fossa-and-lateral-skull-base-surgery
#1
Patrick S Carpenter, Ryan C Burgette, John P Leonetti, Sam J Marzo
Neoplasms located in the parotid region, temporal bone, infratemporal fossa, and lateral skull base represent a challenge due to their difficult anatomic location and surrounding neurovascular structures. A variety of surgical approaches are appropriate to access this area, although several of them can place the auricular blood supply in danger. If the auricular blood supply is compromised, ischemia and, eventually, avascular necrosis of the auricle can occur. Auricular necrosis often can cause patients a delay in adjuvant radiation therapy and result in the need for additional reconstructive procedures...
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28230663/mastery-in-bariatric-surgery-the-long-term-surgeon-learning-curve-of-roux-en-y-gastric-bypass
#2
Aristithes G Doumouras, Fady Saleh, Sama Anvari, Scott Gmora, Mehran Anvari, Dennis Hong
OBJECTIVE: To determine the effect of cumulative volume on all-cause morbidity and operative time. BACKGROUND: Gastric bypass is an important public health procedure, but it is difficult to master with little data about how surgeon cumulative volume affects outcomes longitudinally. METHODS: This was a longitudinal study of 29 surgeons during the first 6 years of performing bariatric surgery in a high-volume, regionalized center of excellence system...
February 22, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28230649/-stamp-perforation-technique-for-correction-of-prominent-mandibular-angle-10-years-of-experience-in-mandibular-reshaping-in-asians
#3
Bowen Gao, Jizhou He, Feng Xie, Hainan Zhu, Liang-Gang Yu, Qingfeng Li
Resection of a prominent mandibular angle is commonly used in Eastern society to improve the lower one third facial proportion. Historically, this procedure had a high complication rate, such as severe bleeding, asymmetry of the angle reduction, and "second mandibular angle." A safer and more effective way of performing such procedures is needed. The aim of this study is to introduce 3 instruments, a tunable guide handpiece, milling cutter, and flywheel, which were invented by the author, as well as a related ostectomy technique for correcting prominent mandibular angles using a modified full-thickness marginal ostectomy of the mandibular corpus angle, named the "stamp perforation" technique...
February 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28230324/effects-of-short-term-energy-restriction-on-liver-lipid-content-and-inflammatory-status-in-severely-obese-adults-results-of-a-randomised-controlled-trial-rct-using-two-dietary-approaches
#4
Emma L Baldry, Guruprasad P Aithal, Philip Kaye, Iskandar R Idris, Andrew Bennett, Paul C Leeder, Ian A Macdonald
Short-term very low energy diets (VLED) are used in clinical practice prior to bariatric surgery, however, regimens vary and outcomes for a short intervention are unclear. We examined the effect of two VLEDs; a food-based diet (FD) and meal replacement plan (MRP) (LighterLife) over two weeks in a randomised controlled trial (RCT). We collected clinical and anthropometric data, fasting blood samples, and dietary evaluation questionnaires. Surgeons took liver biopsies and made a visual assessment of the liver...
February 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28228249/a-computerised-test-of-perceptual-ability-for-learning-endoscopic-and-laparoscopic-surgery-and-other-image-guided-procedures-score-norms-for-picsor
#5
Patrick Henn, Anthony G Gallagher, Emmeline Nugent, Roddy Cowie, Neal E Seymour, Randy S Haluck, Hazem Hseino, Oscar Traynor, Paul C Neary
BACKGROUND: The aptitude to infer the shape of 3-D structures, such as internal organs from 2-D monitor displays, in image guided endoscopic and laparoscopic procedures varies. We sought both to validate a computer-generated task Pictorial Surface Orientation (PicSOr), which assesses this aptitude, and to identify norm referenced scores. METHODS: 400 subjects (339 surgeons and 61 controls) completed the PicSOr test. 50 subjects completed it again one year afterwards...
February 14, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28228047/visible-glove-perforation-in-total-knee-arthroplasty
#6
Lee Qunn Jid, Mak Wai Ping, Wong Yiu Chung, Wai Yuk Leung
PURPOSE: The risk of superficial surgical site infection (SSI) and periprosthetic joint infection (PJI) after glove perforation is not evident. This study was to identify risk factors for glove perforation in primary TKR (total knee replacement) and the risk of subsequent superficial SSI and PJI. METHODS AND MATERIALS: Results of visible glove perforation of both inner and outer gloves during TKR were reviewed. A case-control analysis was performed on the preoperative and operative variables to identify predictive risk factors for glove perforation...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28227997/an-autoclavable-wireless-palpation-instrument-for-minimally-invasive-surgery
#7
Anish S Naidu, Abelardo Escoto, Omar Fahmy, Rajni V Patel, Michael D Naish, Anish S Naidu, Abelardo Escoto, Omar Fahmy, Rajni V Patel, Michael D Naish, Abelardo Escoto, Omar Fahmy, Michael D Naish, Anish S Naidu, Rajni V Patel
Minimally invasive surgery prevents surgeons from manually palpating organs to locate subsurface tumors and other structures. One solution is to use ultrasound; however, it is not always reliable. Various minimally invasive surgery instruments that provide tactile feedback have been proposed to augment ultrasound sensing for tumor localization; however, current designs have limitations such as cumbersome wiring, difficulty in manipulation, lack of sterilizability and high cost. This paper presents a novel, autoclavable, wireless, hand-held palpation instrument that uses a custom, low-cost, disposable tactile sensor to provide tactile and kinesthetic force feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227904/a-potential-function-based-scalpel-navigation-method-that-avoids-blood-vessel-groups-during-excision-of-cancerous-tissue
#8
Hiroshi Noborio, Kazuma Aoki, Takahiro Kunii, Kiminori Mizushino, Hiroshi Noborio, Kazuma Aoki, Takahiro Kunii, Kiminori Mizushino, Hiroshi Noborio, Kazuma Aoki, Kiminori Mizushino, Takahiro Kunii
This study developed support software for liver surgeons; the software can apply potential functions to blood vessels and cancerous tissue and can adjust repulsion and attraction accordingly. Thus, the scalpel can be directly provided with the power to operate on cancerous cells only from a fixed distance, and accidental cutting of blood vessels can be avoided. The direct support provided by this force navigation allows physicians to safely and reliably navigate past blood vessel groups in order to precisely perform excision surgery for liver cancer...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227687/characteristic-of-a-force-sensing-guide-wire-for-minimally-invasive-cardiac-surgery
#9
N Stefanova, M Hessinger, T Opitz, R Werthschutzky, N Stefanova, M Hessinger, T Opitz, R Werthschutzky, N Stefanova, M Hessinger, T Opitz
In minimal invasive cardiac surgery (MICS), the surgeon is missing haptic feedback of the guide wire for navigation through the vessels. A wide range of guide wires with various properties and performance characteristics are available to reduce the risk of complications during the intervention. This paper presents a force sensing guide wire for cardiac catheterization, which provides the surgeon a haptic feedback on the guide wire tip. Three conventional wires for the recanalization of chronic total coronary occlusions (CTO) are investigated and general design requirements for the force sensing guide wire are determined...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227685/graphical-user-interface-for-a-robotic-workstation-in-a-surgical-environment
#10
A Bielski, C P Lohmann, M Maier, D Zapp, M A Nasseri, A Bielski, C P Lohmann, M Maier, D Zapp, M A Nasseri, M A Nasseri, M Maier, D Zapp, C P Lohmann, A Bielski
Surgery using a robotic system has proven to have significant potential but is still a highly challenging task for the surgeon. An eye surgery assistant has been developed to eliminate the problem of tremor caused by human motions endangering the outcome of ophthalmic surgery. In order to exploit the full potential of the robot and improve the workflow of the surgeon, providing the ability to change control parameters live in the system as well as the ability to connect additional ancillary systems is necessary...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227684/a-novel-wireless-wearable-fluorescence-image-guided-surgery-system
#11
Kunshan He, Yamin Mao, Jinzuo Ye, Yu An, Shixin Jiang, Chongwei Chi, Jie Tian, Kunshan He, Yamin Mao, Jinzuo Ye, Yu An, Shixin Jiang, Chongwei Chi, Jie Tian, Shixin Jiang, Jinzuo Ye, Kunshan He, Chongwei Chi, Jie Tian, Yamin Mao, Yu An
Segmentectomy using indocyanine green (ICG) has become a primary treatment option to achieve a complete resection and preserve lung function in early-stage lung cancer. However, owing to a lack of appropriate intraoperative imaging systems, it is a huge challenge for surgeons to identify the intersegmental plane during the operation, leading to poor prognosis. Thus, we developed a novel wireless wearable fluorescence image-guided surgery system (LIGHTEN) for fast and accurate identification of intersegmental planes in human patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227665/hardware-design-for-a-cable-free-fully-insertable-wireless-laparoscopic-robotic-camera
#12
Ning Li, Gregory J Mancini, Jindong Tan, Ning Li, Gregory J Mancini, Jindong Tan, Gregory J Mancini, Ning Li, Jindong Tan
The field of insertable laparoscopic robotic camera is gaining increasing attentions from researchers, surgeons, and also patients. Although many insertable laparoscope prototypes have been introduced, few of them get rid of the encumbrance tethering cable. In this paper, we proposed a hardware architecture for a magnetic actuated robotic surgical (MARS) camera, which facilitates a cable-free fully insertable laparoscopic surgical robotic camera with adequate in-vivo mobility. Modular design and preliminary test of on-board functional payloads have shown feasibility of a cable-free insertable wireless laparoscopic surgical camera based on off-the-shelf electronics and industrial wireless standards operating in ISM frequency bands at 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227664/development-of-five-finger-robotic-hand-using-master-slave-control-for-hand-assisted-laparoscopic-surgery
#13
Koki Yoshida, Hiroshi Yamada, Ryu Kato, Tatsuya Seki, Hiroshi Yokoi, Masaya Mukai, Koki Yoshida, Hiroshi Yamada, Ryu Kato, Tatsuya Seki, Hiroshi Yokoi, Masaya Mukai, Hiroshi Yokoi, Masaya Mukai, Tatsuya Seki, Hiroshi Yamada, Koki Yoshida, Ryu Kato
This study aims to develop a robotic hand as a substitute for a surgeon's hand in hand-assisted laparoscopic surgery (HALS). We determined the requirements for the proposed hand from a surgeon's motions in HALS. We identified four basic behaviors: "power grasp," "precision grasp," "open hand for exclusion," and "peace sign for extending peritoneum." The proposed hand had the minimum necessary DOFs for performing these behaviors, five fingers as in a human's hand, a palm that can be folded when a surgeon inserts the hand into the abdomen, and an arm for adjusting the hand's position...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227655/development-of-a-snake-like-dexterous-manipulator-for-skull-base-surgery
#14
Suat Coemert, Anzhu Gao, John P Carey, Mattias F Traeger, Russell H Taylor, Tim C Lueth, Mehran Armand, Suat Coemert, Anzhu Gao, John P Carey, Mattias F Traeger, Russell H Taylor, Tim C Lueth, Mehran Armand, Anzhu Gao, Russell H Taylor, Mattias F Traeger, Mehran Armand, Suat Coemert, Tim C Lueth, John P Carey
Petrous apex lesions constitute considerable surgical challenges due to their location in the skull base and close relationship with critical structures such as inner ear, carotid arteries, facial nerves and jugular bulb. These lesions often cannot be treated completely with rigid tools due to the limited accessibility. We are aiming to develop a snake-like manipulator to assist surgeons with the infralabyrinthine treatment of petrous apex lesions with increased dexterity. This snake-like dexterous manipulator (SDM) with 3...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227485/augmented-reality-for-breast-tumors-visualization
#15
Mohammad Ali Ghaderi, Mehrdad Heydarzadeh, Mehrdad Nourani, Gopal Gupta, Lakshman Tamil, Mohammad Ali Ghaderi, Mehrdad Heydarzadeh, Mehrdad Nourani, Gopal Gupta, Lakshman Tamil, Gopal Gupta, Mehrdad Heydarzadeh, Lakshman Tamil, Mehrdad Nourani
3D visualization of breast tumors are shown to be effective by previous studies. In this paper, we introduce a new augmented reality application that can help doctors and surgeons to have a more accurate visualization of breast tumors; this system uses a marker-based image-processing technique to render a 3D model of the tumors on the body. The model can be created using a combination of breast 3D mammography by experts. We have tested the system using an Android smartphone and a head-mounted device. This proof of concept can be useful for oncologists to have a more effective screening, and surgeons to plan the surgery...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227397/investigation-of-gaze-patterns-in-multi-view-laparoscopic-surgery
#16
Navaneeth Kamballur Kottayil, Rositsa Bogdanova, Irene Cheng, Bin Zheng, Anup Basu, Navaneeth Kamballur Kottayil, Rositsa Bogdanova, Irene Cheng, Bin Zheng, Anup Basu, Bin Zheng, Anup Basu, Navaneeth Kamballur Kottayil, Irene Cheng, Rositsa Bogdanova
Laparoscopic Surgery (LS) is a modern surgical technique whereby the surgery is performed through an incision with tools and camera as opposed to conventional open surgery. This promises minimal recovery times and less hemorrhaging. Multi view LS is the latest development in the field, where the system uses multiple cameras to give the surgeon more information about the surgical site, potentially making the surgery easier. In this publication, we study the gaze patterns of a high performing subject in a multi-view LS environment and compare it with that of a novice to detect the differences between the gaze behavior...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227265/determining-team-cognition-from-delay-analysis-using-cross-recurrence-plot
#17
Nasim Hajari, Irene Cheng, Bin Zheng, Anup Basu, Nasim Hajari, Irene Cheng, Bin Zheng, Anup Basu, Bin Zheng, Anup Basu, Nasim Hajari, Irene Cheng
Team cognition is an important factor in evaluating and determining team performance. Forming a team with good shared cognition is even more crucial for laparoscopic surgery applications. In this study, we analyzed the eye tracking data of two surgeons during a laparoscopic simulation operation, then performed Cross Recurrence Analysis (CRA) on the recorded data to study the delay behaviour for good performer and poor performer teams. Dual eye tracking data for twenty two dyad teams were recorded during a laparoscopic task and then the teams were divided into good performer and poor performer teams based on the task times...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227123/non-invasive-optical-imaging-techniques-for-burn-injured-tissue-detection-for-debridement-surgery
#18
Juan Heredia-Juesas, Jeffrey E Thatcher, Yang Lu, John J Squiers, Darlene King, Wensheng Fan, J Michael DiMaio, Jose A Martinez-Lorenzo, Juan Heredia-Juesas, Jeffrey E Thatcher, Yang Lu, John J Squiers, Darlene King, Wensheng Fan, J Michael DiMaio, Jose A Martinez-Lorenzo, Jeffrey E Thatcher, Darlene King, Jose A Martinez-Lorenzo, Wensheng Fan, Juan Heredia-Juesas, Yang Lu, John J Squiers
Burn debridement is a challenging technique that requires significant skill to identify regions requiring excision and appropriate excision depth. A machine learning tool is being developed in order to assist surgeons by providing a quantitative assessment of burn-injured tissue. Three noninvasive optical imaging techniques capable of distinguishing between four kinds of tissue-healthy skin, viable wound bed, deep burn, and shallow burn-during serial burn debridement in a porcine model are presented in this paper...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227064/energy-based-metrics-for-laparoscopic-skills-assessment
#19
Behnaz Poursartip, Marie-Eve LeBel, Rajni V Patel, Michael D Naish, Ana Luisa Trejos, Behnaz Poursartip, Marie-Eve LeBel, Rajni V Patel, Michael D Naish, Ana Luisa Trejos, Rajni V Patel, Michael D Naish, Marie-Eve LeBel, Ana Luisa Trejos, Behnaz Poursartip
The growing popularity of minimally invasive surgery (MIS) can be attributed to its advantages, which include reduced post-operative pain, a shorter hospital stay, and faster recovery. However, MIS requires extensive training for surgeons to become experts in their field of practice. Different assessment methods have been proposed for evaluating the performance of surgeons and residents on surgical simulators. Nonetheless, optimal objective performance measures are still lacking. In this study, three metrics for minimally invasive skills assessment are proposed based on energy expenditure: work, potential energy and kinetic energy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226841/mentor-s-brain-functional-connectivity-network-during-robotic-assisted-surgery-mentorship
#20
Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru, Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru, Somayeh B Shafiei, Khurshid A Guru, Scott T Doyle
In many complicated cognitive-motor tasks mentoring is inevitable during the learning process. Although mentors are expert in doing the task, trainee's operation might be new for a mentor. This makes mentoring a very difficult task which demands not only the knowledge and experience of a mentor, but also his/her ability to follow trainee's movements and patiently advise him/her during the operation. We hypothesize that information binding throughout the mentor's brain areas, contributed to the task, changes as the expertise level of the trainee improves from novice to intermediate and expert...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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