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https://www.readbyqxmd.com/read/27921372/a-fuzzy-neural-network-sliding-mode-controller-for-vibration-suppression-in-robotically-assisted-minimally-invasive-surgery
#1
Hongqiang Sang, Chenghao Yang, Fen Liu, Jintian Yun, Guoguang Jin
BACKGROUND: It is very important for robotically assisted minimally invasive surgery to achieve a high-precision and smooth motion control. However, the surgical instrument tip will exhibit vibration caused by nonlinear friction and unmodeled dynamics, especially when the surgical robot system is attempting low-speed, fine motion. METHODS: A fuzzy neural network sliding mode controller (FNNSMC) is proposed to suppress vibration of the surgical robotic system. Nonlinear friction and modeling uncertainties are compensated by a Stribeck model, a radial basis function (RBF) neural network and a fuzzy system, respectively...
December 2016: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/27919731/nerve-sparing-laparoscopic-colposacropexy-using-a-percutaneous-surgical-system-a-case-report
#2
Federico Romano, Francesco Legge, Giovanni Scambia, Maurizio Guido
STUDY OBJECTIVE: To evaluate the feasibility, efficacy and safeness of nerve-sparing laparoscopic colposacropexy performed with a minimally invasive approach by using 2,9 mm Percuvance(TM) Percutaneous Surgical System (PSS) (The Percuvance(TM) System, Teleflex Inc., USA). DESIGN: Step-by-step video demonstration of the surgical technique. The Internal Department Committee approved this study. The patient was adequately informed about the possible risks and benefits of this experimental technique and a written consent agreeing to undergo the described procedure was signed...
December 2, 2016: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27918317/minimally-invasive-robotically-assisted-repair-of-partial-anomalous-venous-connection
#3
Luigi Pirelli, Chad A Kliger, Nirav C Patel, Marcella Bono, Carlos E Ruiz, Vladimir Jelnin, Gregory P Fontana
We describe a novel robotically assisted minimally invasive surgical technique for repair of partial anomalous pulmonary vein connection (PAPVC). Partial anomalous pulmonary vein connection is a rare congenital anomaly that consists in drainage of one or more pulmonary veins into the systemic venous system. Traditionally, large thoracotomy incision and sometimes establishment of cardiopulmonary bypass are needed to redirect the abnormal pulmonary vein to the left-sided reservoir. We describe a robotically assisted, minimally invasive, off-pump technique for the treatment of the left PAPVC in a 57-year-old patient with signs of progressive right ventricular dilatation...
December 1, 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27916869/error-analysis-and-experimental-study-of-a-bi-planar-parallel-mechanism-in-a-pedicle-screw-robot-system
#4
Qingjuan Duan, Zhijiang Du, Hongjian Yu, Yongfeng Wang, Wei Dong
Due to the urgent need for high precision surgical equipment for minimally invasive spinal surgery, a novel robot-assistant system was developed for the accurate placement of pedicle screws in lumbar spinal surgeries. The structure of the robot was based on a macro-micro mechanism, which includes a serial mechanism (macro part) and a bi-planar 5R parallel mechanism (micro part). The macro part was used to achieve a large workspace, while the micro part was used to obtain high stiffness and accuracy. Based on the transfer function of dimension errors, the factors affecting the accuracy of the end effectors were analyzed...
November 30, 2016: Sensors
https://www.readbyqxmd.com/read/27916374/transfer-and-priming-of-surgical-skills-across-minimally-invasive-surgical-platforms
#5
Ahmed Zihni, Tianjia Ge, Shuddhadeb Ray, Robert Wang, Zhe Liang, Jaime A Cavallo, Michael M Awad
BACKGROUND: Robot-assisted laparoscopic surgery (RALS) uses 3-dimensional visualization and wristed instruments that provide more degrees of freedom than rigid traditional laparoscopic (TLS) instrumentation. These features have been touted to improve accuracy and efficiency during surgical task performance. Little is known, however, about the transferability of skills between the two platforms or whether task performance on one platform primes surgeons for task performance on the other...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27916352/robotic-liver-resection-including-the-posterosuperior-segments-initial-experience
#6
Carolijn L M A Nota, I Quintus Molenaar, Richard van Hillegersberg, Inne H M Borel Rinkes, Jeroen Hagendoorn
BACKGROUND: Robot-assisted laparoscopy has been introduced to overcome the limitations of conventional laparoscopy. This technique has potential advantages over laparoscopy, such as increased dexterity, three-dimensional view, and a magnified view of the operative field. Therefore, improved dexterity may make a robotic system particularly suited for liver resections, which require nonlinear manipulation, such as curved parenchymal transection, hilar dissection, and resection of posterosuperior segments...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27916028/-structured-training-strategy-for-robot-surgery
#7
H Q Xi, K C Zhang, B Wei, L Chen
With surgical strategy progresses towarding to precision and minimally invasive surgery, the Da Vinci robotic surgical system comes into being. Compared with conventional surgery, the Da Vinci robotic surgical system enjoys several advantages including clear operation field, flexibility and tremor filtration.Normative operation plays an important role in translating such advantages into clinical benefits.Training physicians systematically and comprehensively is very important. Compared with conventional training strategy, multi-modal simulation training is more preferred for the Da Vinci robotic surgical system training...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27909625/robotic-kidney-transplantation-the-bak%C3%A4-rk%C3%A3-y-experience
#8
Volkan Tuğcu, Nevzat Can Şener, Selçuk Şahin, Abdullah Hızır Yavuzsan, Fatih Gökhan Akbay, Süheyla Apaydın
OBJECTIVE: Robotic kidney transplantation, first described by Hoznek and colleagues, and has been improved by investigators like Oberholzer and Menon. We realized the first robotic kidney transplant (RKT) in our clinic in December 2015. In this study, we aimed to present the first 15 cases we performed within 3 months. MATERİAL AND METHODS: Starting from January 2016, we performed 15 RKTs in our hospital. Before surgery, the whole robotic procedure was thoroughly explained to the patients and their informed consents were taken...
December 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27908636/impact-of-neoadjuvant-chemotherapy-on-complications-of-minimally-invasive-radical-cystectomy
#9
D Lizée, R S Salas, E Barret, M Galiano, E Di Trapani, F Montorsi, X Cathelineau
BACKGROUND: Neoadjuvant chemotherapy (NC) before minimally invasive radical cystectomy (MIRC) is considered a standard of care in muscle-invasive bladder cancer or recurrent high-risk non-muscle-invasive bladder cancer. OBJECTIVE: To evaluate the impact of NC on morbidity and mortality after MIRC. DESIGN, SETTING, AND PARTICIPANTS: We prospectively evaluated 135 patients who underwent MIRC (laparoscopic: n=100; robotic: n=35) between 2007 and 2013 with ≥90 days of follow-up (median age: 66 year)...
November 28, 2016: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/27908634/systematic-review-of-perioperative-outcomes-and-complications-after-open-laparoscopic-and-robot-assisted-radical-cystectomy
#10
A Palazzetti, R Sanchez-Salas, P Capogrosso, E Barret, N Cathala, A Mombet, D Prapotnich, M Galiano, F Rozet, X Cathelineau
Radical cystectomy and regional lymph node dissection is the standard treatment for localized muscle-invasive and for high-risk non-muscle-invasive bladder cancer, and represents one of the main surgical urologic procedures. The open surgical approach is still widely adopted, even if in the last two decades efforts have been made in order to evaluate if minimally invasive procedures, either laparoscopic or robot-assisted, might show a benefit compared to the standard technique. Open radical cystectomy is associated with a high complication rate, but data from the laparoscopic and robotic surgical series failed to demonstrate a clear reduction in post-operative complication rates compared to the open surgical series...
November 28, 2016: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/27908471/-removal-and-transplant-synchronised-surgical-procedures
#11
Jacques Hubert, Luc Frimat
Since 2001, the team of the organ and tissue procurement unit of Nancy general hospital has practised the minimally invasive laparoscopic organ removal procedure through robot-assisted surgery. Here the team shares its expertise in the area of kidney removal from a living donor. Perfectly synchronised with the procedure of the team in charge of the transplant, the surgical stages are carried out in sequence ensuring optimal safety for the donor and recipient.
December 2016: Revue de L'infirmière
https://www.readbyqxmd.com/read/27906718/anesthesia-for-nonintubated-video-assisted-thoracic-surgery
#12
Hiroshi Sunaga, Justin D Blasberg, Paul M Heerdt
PURPOSE OF REVIEW: This review focuses primarily on nonintubated video-assisted thoracic surgery (NIVATS), and discusses advantages, indications, anesthetic techniques, and approaches to intraoperative crisis management. RECENT FINDINGS: Advancements in endoscopic, endovascular, and robotic techniques have expanded the range of surgical procedures that can be performed in a minimally invasive fashion. For thoracic operations in particular, video-assisted thoracic surgery (VATS) has largely replaced traditional thoracotomy, and continued technical development has made surgical access into the pleural space even less disruptive...
November 30, 2016: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27905087/robot-assisted-surgery-in-elderly-and-very-elderly-population-our-experience-in-oncologic-and-general-surgery-with-literature-review
#13
Graziano Ceccarelli, Enrico Andolfi, Alessia Biancafarina, Aldo Rocca, Maurizio Amato, Marco Milone, Marta Scricciolo, Barbara Frezza, Egidio Miranda, Marco De Prizio, Andrea Fontani
BACKGROUND: Although there is no agreement on a definition of elderly, commonly an age cutoff of ≥65 or 75 years is used. Nowadays most of malignancies requiring surgical treatment are diagnosed in old population. Comorbidities and frailty represent well-known problems during and after surgery in elderly patients. Minimally invasive surgery offers earlier postoperative mobilization, less blood loss, lower morbidity as well as reduction in hospital stay and as such represents an interesting and validated option for elderly population...
November 30, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27901336/robotic-kidney-transplantation-current-status-and-future-perspectives
#14
Angelo Territo, Alex Mottrie, Ronney Abaza, Craig Rogers, Mani Menon, Mahendra Bhandari, Rajesh Ahlawat, Alberto Breda
INTRODUCTION: For the treatment of patients with end-stage renal disease, kidney transplantation is preferred to renal replacement modalities such as hemodialysis and peritoneal dialysis. Although open surgery remains the gold standard, minimally invasive approaches have recently been applied in transplant kidney surgery. Despite growing enthusiasm and potential benefits of robotic kidney transplant, many aspects of this novel technique remain controversial. Aim of this study was to analyze the current status and future developments in robotic-assisted surgery for kidney transplantation...
November 30, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27893300/the-use-of-robotic-and-laparoscopic-surgical-stapling-devices-during-minimally-invasive-colon-and-rectal-surgery-a-comparison
#15
Jeremy L Holzmacher, Samuel Luka, Madiha Aziz, Richard L Amdur, Samir Agarwal, Vincent Obias
PURPOSE: To date there exists no published study examining the safety and efficacy of the EndoWrist 45 (Intuitive Surgical, Inc.) robotic stapler. We compared outcomes between the robotic and comparable laparoscopic stapler in robotic-assisted colorectal procedures. MATERIALS AND METHODS: We conducted a retrospective review of 93 patients who underwent robotic-assisted colorectal surgery at our institution from 2012 to 2014. Surgeries included left, sigmoid, subtotal and total colectomies, and low anterior rectal resections...
November 28, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27891251/the-role-of-the-single-incision-laparoscopic-approach-in-liver-and-pancreatic-resectional-surgery
#16
REVIEW
Nikolaos A Chatzizacharias, Khaled Dajani, Jun Kit Koong, Asif Jah
Introduction. Single incision laparoscopic surgery (SILS) has gained increasing support over the last few years. The aim of this narrative review is to analyse the published evidence on the use and potential benefits of SILS in hepatic and pancreatic resectional surgery for benign and malignant pathology. Methods. Pubmed and Embase databases were searched using the search terms "single incision laparoscopic", "single port laparoscopic", "liver surgery", and "pancreas surgery". Results. Twenty relevant manuscripts for liver and 9 for pancreatic SILS resections were identified...
2016: Minimally Invasive Surgery
https://www.readbyqxmd.com/read/27888474/colorectal-surgery-in-elderly-patients-our-experience-with-davinci-xi%C3%A2-system
#17
A Oldani, P Bellora, M Monni, B Amato, S Gentilli
BACKGROUND: Robotic technology for colorectal surgery was introduced by Weber in 2002 to improve the benefits of the minimally invasive surgery already offered by the laparoscopic approach. AIMS: To evaluate the feasibility and the efficacy of the application of robotic surgery in elderly patients affected by colorectal diseases. METHODS: We reported the outcomes obtained during our first 50 colorectal robotic surgical performances with DaVinci Xi® System, and we compared the results assessed for patients younger or older than 70 years...
November 26, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27885325/current-role-of-minimally-invasive-radical-cholecystectomy-for-gallbladder-cancer
#18
REVIEW
Giuseppe Zimmitti, Alberto Manzoni, Francesca Guerini, Marco Ramera, Paola Bertocchi, Francesca Aroldi, Alberto Zaniboni, Edoardo Rosso
Background. For Tis and T1a gallbladder cancer (GbC), laparoscopic cholecystectomy can provide similar survival outcomes compared to open cholecystectomy. However, for patients affected by resectable T1b or more advanced GbC, open approach radical cholecystectomy (RC), consisting in gallbladder liver bed resection or segment 4b-5 bisegmentectomy, with locoregional lymphadenectomy, is considered the gold standard while minimally invasive RC (MiRC) is skeptically considered. Aim. To analyze current literature on perioperative and oncologic outcomes of MiRC for patients affected by GbC...
2016: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/27884614/robotic-major-hepatectomy-is%C3%A2-there-a-learning-curve
#19
Po-Da Chen, Chao-Yin Wu, Rey-Heng Hu, Chiung-Nien Chen, Ray-Hwang Yuan, Jin-Tung Liang, Hong-Shiee Lai, Yao-Ming Wu
BACKGROUND: Robotic hepatectomy has been suggested as a safe and effective management of liver disease. However, no large case series have documented the learning curve for robotic major hepatectomy. METHOD: We conducted a retrospective study for robotic major hepatectomy performed by the same operative team between January 2012 and October 2015 and evaluated the learning curve for operation time using the cumulative sum method, presented as cumulative sumoperation time...
November 21, 2016: Surgery
https://www.readbyqxmd.com/read/27882552/trends-and-the-utilization-of-transoral-robotic-surgery-with-neck-dissection-in-new-york-state
#20
Catherine H Frenkel, Jie Yang, Mengru Zhang, Elliot Regenbogen, Dana A Telem, Ghassan J Samara
OBJECTIVES: The timing of neck dissection (ND) in relation to transoral robotic surgery (TORS) is controversial. This study identifies local practice patterns and economic and social access disparities during adoption of TORS. STUDY DESIGN: We analyzed utilization patterns of TORS and ND using the New York Statewide Planning and Research Cooperative System all-payer administrative database. Statewide head and neck cancer incidence from the Centers for Disease Control and Prevention (Bethesda, MD) was used to control for overall cancer incidence...
November 24, 2016: Laryngoscope
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