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https://www.readbyqxmd.com/read/28533140/3d-interactive-surgical-visualization-system-using-mobile-spatial-information-acquisition-and-autostereoscopic-display
#1
Zhencheng Fan, Yitong Weng, Guowen Chen, Hongen Liao
Three-dimensional (3D) visualization of preoperative and intraoperative medical information becomes more and more important in minimally invasive surgery. We develop a 3D interactive surgical visualization system using mobile spatial information acquisition and autostereoscopic display for surgeons to observe surgical target intuitively. The spatial information of regions of interest (ROIs) is captured by the mobile device and transferred to a server for further image processing. Triangular patches of intraoperative data with texture are calculated with a dimension-reduced triangulation algorithm and a projection-weighted mapping algorithm...
May 19, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28528932/robot-assisted-gynaecological-cancer-surgery-complications-and-prevention
#2
REVIEW
Ka Yu Tse, Hextan Yuen Sheung Ngan, Peter Christopher Lim
Ever since the US Food and Drug Administration approval of the use of da Vinci surgical systems (Intuitive Surgical Inc., Sunnyvale, California) in gynaecology in 2005, robot-assisted surgery has been widely adopted in different countries. Some of the applications in benign and oncological gynaecology include myomectomy, sacrocolpopexy, tubal anastomosis, simple hysterectomy, radical hysterectomy, radical trachelectomy, pelvic and/or para-aortic lymphadenectomy and even debulking surgery for ovarian cancer and pelvic exenteration for recurrent cervical and vaginal cancer...
April 23, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28526721/health-care-resource-utilization-and-associated-costs-among-metastatic-cutaneous-melanoma-patients-treated-with-ipilimumab-intuition-study
#3
Grant A McArthur, Peter Mohr, Paolo Antonio Ascierto, Ana Arance, Ana Banos Hernaez, Peter Kaskel, Michael Weichenthal, Reshma Shinde, Kendall Stevinson
BACKGROUND: There are limited real-world data on health care resource utilization (HCRU) among advanced melanoma patients. The objective of this study was to describe HCRU and health care costs associated with the management of advanced melanoma patients receiving ipilimumab. METHODS: This retrospective multinational, observational study included advanced melanoma patients from Australia, Germany, Italy, and Spain who had received at least 1 dose of ipilimumab. Data extracted from medical charts included inpatient admissions, outpatient visits, surgical procedures, laboratory investigations, radiation therapy, imaging studies, and concomitant medications...
May 19, 2017: Oncologist
https://www.readbyqxmd.com/read/28513820/intra-abdominal-hypertension-and-abdominal-compartment-syndrome-in-acute-pancreatitis-hepato-pancreato-biliary-operations-and-liver-transplantation
#4
Alexsander K Bressan, Chad G Ball
Intra-abdominal hypertension, even preceding the onset of abdominal compartment syndrome, is still recognized as an adverse prognostic factor. Unfortunately, most of the current supporting evidence within the critical care environment remains observational in nature. In acute pancreatitis, an active role for intra-abdominal hypertension early in the disease process follows a strong intuitive basis, and it is corroborated by preliminary evidence from animal models. Additional studies are needed to better characterize the optimal fluid resuscitation strategy, as well as the importance of intra-abdominal hypertension as an early therapeutic target...
May 17, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28512663/advancing-the-integration-of-hospital-it-pitfalls-and-perspectives-when-replacing-specialized-software-for-high-risk-environments-with-enterprise-system-extensions
#5
Carsten Engelmann, Dzifa Ametowobla
BACKGROUND: Planning and controlling surgical operations hugely impacts upon productivity, patient safety, and surgeons' careers. Established, specialized software for this task is being increasingly replaced by "Operating Room (OR)-modules" appended to enterprise-wide resource planning (ERP) systems. As a result, usability problems are re-emerging and require developers' attention. OBJECTIVE: Systematic evaluation of the functionality and social repercussions of a global, market-leading IT business control system (SAP R3, Germany), adapted for real-time OR process steering...
May 17, 2017: Applied Clinical Informatics
https://www.readbyqxmd.com/read/28498018/full-robotic-colorectal-resections-for-cancer-combined-with-other-major-surgical-procedures
#6
Luca Morelli, Gregorio Di Franco, Simone Guadagni, Matteo Palmeri, Desirée Gianardi, Matteo Bianchini, Andrea Moglia, Vincenzo Ferrari, Giovanni Caprili, Cristiano D'Isidoro, Franca Melfi, Giulio Di Candio, Franco Mosca
BACKGROUND: The da Vinci Xi has been developed to overcome some of the limitations of the previous platform, thereby increasing the acceptance of its use in robotic multiorgan surgery. METHODS: Between January 2015 and October 2015, 10 patients with synchronous tumors of the colorectum and others abdominal organs underwent robotic combined resections with the da Vinci Xi. Trocar positions respected the Universal Port Placement Guidelines provided by Intuitive Surgical for "left lower quadrant," with trocars centered on the umbilical area, or shifted 2 to 3 cm to the right or to the left, depending on the type of combined surgical procedure...
March 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28497219/robot-assisted-adrenalectomy-indications-and-drawbacks
#7
C Nomine-Criqui, A Germain, A Ayav, L Bresler, L Brunaud
Adrenal tumors can vary from a benign adrenocortical adenoma with no hormonal secretion to a secretory adrenocortical malignancy (adrenocortical carcinoma) or a hormone-secreting tumor of the adrenal medulla (pheochromocytoma). Currently, laparoscopic adrenalectomy is regarded as the preferred surgical approach for the management of most adrenal surgical disorders, although there are no prospective randomized trials comparing this technique with open adrenalectomy. However, widespread adoption of robotic technology has positioned robotic adrenalectomy as an option in some medical centers...
May 12, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28488073/incisional-hernia-after-robotic-single-site-cholecystectomy-a-pilot-study
#8
A Balaphas, N C Buchs, S P Naiken, M E Hagen, A Zawodnik, M K Jung, G Varnay, L H Bühler, P Morel
PURPOSE: Robotic LaparoEndoscopic Single-Site Surgery Cholecystectomy has been performed for 5 years using a dedicated platform (da Vinci(®) Single-Site(®)) with the da Vinci(®) Surgical System (Intuitive Surgical Inc., Sunnyvale, CA, USA). While short-term feasibility has been described, long-term assessment of this method is currently outstanding. The aim of this study was to assess long-term parietal complications of this technique. METHODS: In this retrospective study, patients operated between 2011 and 2013 were evaluated...
May 9, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28480108/fungal-brain-abscess-caused-by-black-mold-cladophialophora-bantiana-a-case-report-of-successful-treatment-with-an-emphasis-on-how-fungal-brain-abscess-may-be-different-from-bacterial-brain-abscess
#9
Zaid Aljuboori, Rob Hruska, Alae Yaseen, Forest Arnold, Barbara Wojda, Haring Nauta
BACKGROUND: Central nervous system infection with Cladophialophora bantiana (Black Mold) is rare. It carries a high mortality rate, that is more than 70%, despite multimodal therapy. CASE DESCRIPTION: We present a rare case of "black mold" fungal brain abscess that was successfully treated with good patient outcome. The case is unusual because there were two fungal brain abscesses located bilaterally symmetrically in the mesial frontal lobes, and the response to different treatment strategies was well documented by over 25 magnetic resonance imaging (MRI) scans...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28470408/features-of-haptic-and-tactile-feedback-in-tors-a-comparison-of-available-surgical-systems
#10
Daniel T Friedrich, L Dürselen, B Mayer, S Hacker, F Schall, J Hahn, T K Hoffmann, P J Schuler, J Greve
Sustained interest and an increase of possible indications endorse the role of robot-assisted surgery of the head and neck region. However, broad clinical application is impeded by substantial extra cost, time exposure and a supposed deficit of haptic and tactile feedback. The role of haptic feedback has barely been examined in this context, and literature provides only limited objective validation. This point of criticism applies to all commercially available systems. We created an experimental setup to evaluate, quantify and compare the performance of surgical systems...
May 3, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28467005/real-time-simulation-of-soft-tissue-deformation-and-electrocautery-procedures-in-laparoscopic-rectal-cancer-radical-surgery
#11
Yuan Sui, Jun J Pan, Hong Qin, Hao Liu, Yun Lu
BACKGROUND: Laparoscopic surgery (LS), also referred to as minimally invasive surgery, is a modern surgical technique which is widely applied. The fulcrum effect makes LS a non-intuitive motor skill with a steep learning curve. METHODS: A hybrid model of tetrahedrons and a multi-layer triangular mesh are constructed to simulate the deformable behavior of the rectum and surrounding tissues in the Position-Based Dynamics (PBD) framework. A heat-conduction based electric-burn technique is employed to simulate the electrocautery procedure...
May 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28417944/variable-admittance-control-based-on-fuzzy-reinforcement-learning-for-minimally-invasive-surgery-manipulator
#12
Zhijiang Du, Wei Wang, Zhiyuan Yan, Wei Dong, Weidong Wang
In order to get natural and intuitive physical interaction in the pose adjustment of the minimally invasive surgery manipulator, a hybrid variable admittance model based on Fuzzy Sarsa(λ)-learning is proposed in this paper. The proposed model provides continuous variable virtual damping to the admittance controller to respond to human intentions, and it effectively enhances the comfort level during the task execution by modifying the generated virtual damping dynamically. A fuzzy partition defined over the state space is used to capture the characteristics of the operator in physical human-robot interaction...
April 12, 2017: Sensors
https://www.readbyqxmd.com/read/28414709/robotic-surgery-fast-forward-to-telemedicine
#13
George B Stefano
Since the realization that certain maladies can be corrected via surgical techniques, we have been consumed by the desire to constantly advance the tools of surgery, as well as the techniques. In recent times, computer-assisted surgical tools have emerged and are growing in their use. The Puma 560 emerged in 1985 for brain biopsies and laparoscopic surgery. Prostatic surgery was performed by the Probot in 1988. In 1992, fittings in the femur were placed using the ROBODOC. These early robotic endeavors gave rise to AESOP, ZEUS and the relatively intuitive da Vinci® Surgical System...
April 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28401399/intelligent-viewpoint-selection-for-efficient-ct-to-video-registration-in-laparoscopic-liver-surgery
#14
Maria R Robu, Philip Edwards, João Ramalhinho, Stephen Thompson, Brian Davidson, David Hawkes, Danail Stoyanov, Matthew J Clarkson
PURPOSE: Minimally invasive surgery offers advantages over open surgery due to a shorter recovery time, less pain and trauma for the patient. However, inherent challenges such as lack of tactile feedback and difficulty in controlling bleeding lower the percentage of suitable cases. Augmented reality can show a better visualisation of sub-surface structures and tumour locations by fusing pre-operative CT data with real-time laparoscopic video. Such augmented reality visualisation requires a fast and robust video to CT registration that minimises interruption to the surgical procedure...
April 11, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28391534/surgical-sutures-coincidence-or-experience
#15
K-T von Trotha, J Grommes, N Butz, A Lambertz, C D Klink, U P Neumann, M Jacobs, M Binnebösel
BACKGROUND: Knotting sutures by hand is still important in daily surgical routine, especially laparotomy closure. The expectation is that hand suturing relies on the experience and subjective estimation of the surgeon. The aim of this study was to investigate whether hand suturing tension is reproducible and if surgical experience influences reproducibility. METHODS: At the annual Congress of the German Association of Surgery, 118 surgeons performed repetitive sutures on a standardized and certified measuring device simulating the final knot of a fascial closure...
April 8, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28374223/robotic-paraesophageal-hernia-repair-a-single-center-experience-and-systematic-review
#16
Vanitha Vasudevan, Ryan Reusche, Erek Nelson, Srinivas Kaza
Robotic Surgery is becoming increasingly used in general surgery. The objective of this study is to evaluate the safety, effectiveness and short-term (less than 1 year) outcomes of Robotic Paraesophageal Hernia (RPEH) Surgery using the DaVinci Surgical Robot system (Intuitive Surgical, CA) in a large community hospital. This is a retrospective cohort study of 28 consecutive patients who underwent robotic paraesophageal hernia repair January 2011-March 2013 in this institution. Data and outcomes collected for analysis include patient demographics, operating times, conversion, complications, mortality and recurrence...
April 3, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28350568/reducing-length-of-stay-using-a-robotic-assisted-approach-for-retromuscular-ventral-hernia-repair-a-comparative-analysis-from-the-americas-hernia-society-quality-collaborative
#17
Alfredo M Carbonell, Jeremy A Warren, Ajita S Prabhu, Conrad D Ballecer, Randy J Janczyk, Javier Herrera, Li-Ching Huang, Sharon Phillips, Michael J Rosen, Benjamin K Poulose
OBJECTIVE: The aim of this study was to compare length of stay (LOS) after robotic-assisted and open retromuscular ventral hernia repair (RVHR). BACKGROUND: RVHR has traditionally been performed by open techniques. Robotic-assisted surgery enables surgeons to perform minimally invasive RVHR, but with unknown benefit. Using real-world evidence, this study compared LOS after open (o-RVHR) and robotic-assisted (r-RVHR) approach. METHODS: Multi-institutional data from patients undergoing elective RVHR in the Americas Hernia Society Quality Collaborative between 2013 and 2016 were analyzed...
March 27, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28349758/use-of-natural-user-interfaces-for-image-navigation-during-laparoscopic-surgery-initial-experience
#18
Francisco M Sánchez-Margallo, Juan A Sánchez-Margallo, José L Moyano-Cuevas, Eva María Pérez, Juan Maestre
BACKGROUND: Surgical environments require special aseptic conditions for direct interaction with the preoperative images. We aim to test the feasibility of using a set of gesture control sensors combined with voice control to interact in a sterile manner with preoperative information and an integrated operating room (OR) during laparoscopic surgery. MATERIAL AND METHODS: Two hepatectomies and two partial nephrectomies were performed by three experienced surgeons in a porcine model...
March 28, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28318968/improved-glottic-exposure-for-robotic-microlaryngeal-surgery-a-case-series
#19
Dehra A McGuire, Jennifer P Rodney, Nilesh R Vasan
Robotic surgery has become the standard of care for many procedures outside of otolaryngology and now is gaining momentum within our specialty. The da Vinci (Intuitive Surgical, Sunnyvale, CA) robot has several advantages to human hands, including removal of tremor and better access to lesions because of increased degree of movement of the articulated instruments. The glottis has rarely been addressed using robotic surgery because access was previously thought to be difficult because of the limitations of currently used retractors, which include poor base of tongue and oral commissure retraction resulting in lack of exposure of the glottis in many patients and lack of space for the robotic instruments to occupy...
March 17, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28318915/computer-assisted-positioning-of-the-proximal-segment-after-sagittal-split-osteotomy-of-the-mandible-preclinical-investigation-of-a-novel-electromagnetic-navigation-system
#20
Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jürgen Hoffmann, Hartmut Dickhaus
INTRODUCTION: Modifications of the temporomandibular joint position after mandible osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. MATERIAL AND METHODS: High oblique sagittal split osteotomies were performed on 6 plastic skull mandibles in a laboratory under conditions comparable to the operating theatre...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
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