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https://www.readbyqxmd.com/read/28735174/tetherless-near-infrared-control-of-brain-activity-in-behaving-animals-using-fully-implantable-upconversion-microdevices
#1
Ying Wang, Xudong Lin, Xi Chen, Xian Chen, Zhen Xu, Wenchong Zhang, Qinghai Liao, Xin Duan, Xin Wang, Ming Liu, Feng Wang, Jufang He, Peng Shi
Many nanomaterials can be used as sensors or transducers in biomedical research and they form the essential components of transformative novel biotechnologies. In this study, we present an all-optical method for tetherless remote control of neural activity using fully implantable micro-devices based on upconversion technology. Upconversion nanoparticles (UCNPs) were used as transducers to convert near-infrared (NIR) energy to visible light in order to stimulate neurons expressing different opsin proteins. In our setup, UCNPs were packaged in a glass micro-optrode to form an implantable device with superb long-term biocompatibility...
July 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28735132/asleep-robot-assisted-surgery-for-the-implantation-of-subthalamic-electrodes-provides-the-same-clinical-improvement-and-therapeutic-window-as-awake-surgery
#2
Michel Lefranc, Yassine Zouitina, Mélissa Tir, Philippe Merle, Martial Ouendo, Jean-Marc Constans, Olivier Godefroy, Johann Peltier, Pierre Krystkowiak
OBJECTIVE: To study the impact of not performing an awake clinical evaluation during the robot-assisted implantation subthalamic nucleus deep brain stimulation (STN-DBS) electrodes on the stimulation parameters and clinical outcome in patients with Parkinson's disease (PD). METHODS: A total of 23 PD patients underwent robot-assisted surgery for the bilateral implantation of STN-DBS electrodes. Thirteen patients received general anesthesia (GA) and a limited intraoperative evaluation (side effects only), whereas 10 received local anesthesia and a full evaluation...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28735018/safety-and-feasibility-of-direct-mri-guided-transperineal-prostate-biopsy-using-a-novel-mri-safe-robotic-device
#3
Mark W Ball, Ashley E Ross, Kamyar Ghabili, Chunwoo Kim, Changhan Jun, Doru Petrisor, Li Pan, Jonathan I Epstein, Katarzyna J Macura, Dan S Stoianovici, Mohamad E Allaf
OBJECTIVE: To evaluate safety and feasibility in a first in human trial of direct MRI-guided prostate biopsy using a novel robotic device. METHODS: MrBot is an MRI-safe robotic device constructed entirely of nonconductive, nonmetallic, and nonmagnetic materials, developed by our group. A safety and feasibility clinical trial was designed to assess the safety and feasibility of direct MRI-guided biopsy with MrBot and determine its targeting accuracy. Men with elevated PSA, prior negative prostate biopsy and cancer suspicious region (CSR) on MRI were enrolled in the study...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28734974/the-effects-of-pneumoperitoneum-and-the-steep-trendelenburg-position-on-heart-rate-variability-and-cerebral-oxygenation-during-robotic-sacrocolpopexy
#4
Emad Matanes, Amir Weissman, Aleksandr Rivlin, Roy Lauterbach, Amnon Amit, Zeev Wiener, Lior Lowenstein
STUDY OBJECTIVE: The aim of the current study was to investigate how steep Trendelenburg positioning with pneumoperitoneum modifies brain oxygenation and autonomic nervous system modulation of heart rate variability during robotic sacrocolpopexy. DESIGN: A 5-minute computerized ECG, cerebral O2 saturation (cSO2), systemic O2 saturation (sSO2), heart rate (HR), diastolic blood pressure (BP), systolic BP and end tidal CO2 tension were recorded immediately after anesthesia induction (baseline phase) and after alterations in positioning and in intra-abdominal pressure...
July 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28734973/minimally-invasive-approaches-to-myoma-management
#5
REVIEW
Julian A Gingold, Ndeye-Aicha Gueye, Tommaso Falcone
Patients affected by the presence of leiomyomas may incur a substantial physical, emotional, social and financial toll as well as losses in their quality of life. Although many myomas are not amenable to medical therapy or hysteroscopic resection, many others are amenable to minimally invasive surgical approaches. In patients who prefer to retain their fertility, laparoscopic myomectomy should be considered the intervention of choice. In this review we expand on the surgical techniques of both conventional laparoscopic and robotic-assisted myomectomies...
July 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28734971/robotic-assistance-confers-ambidexterity-to-laparoscopic-surgeons
#6
Souzana Choussein, Serene S Srouji, Leslie V Farland, Ashley Wietsma, Stacey A Missmer, Michael Hollis, Richard N Yu, Charles N Pozner, Antonio R Gargiulo
STUDY OBJECTIVE: To examine whether a robotic surgical platform can complement the fine motor skills of the non-dominant hand, compensating for the innate difference in dexterity between the surgeon's hands, thereby conferring virtual ambidexterity. DESIGN: Crossover intervention study. DESIGN CLASSIFICATION: Level II-1 evidence. SETTING: Centers for medical simulation of two tertiary care hospitals of Harvard Medical School...
July 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28734874/robotic-assistants-in-personal-care-a-scoping-review
#7
REVIEW
A Bilyea, N Seth, S Nesathurai, H A Abdullah
The aim of this study is to present an overview of the technological advances in the field of robotics developed for assistance with activities of daily living (ADL), and to present areas where further research is required. Four databases were searched for articles presenting either a novel design of one of these personal care robotic system or trial results relating to these systems. Articles presenting nine different robotic personal care systems were examined, six of which had been developed after 2005. These six also all have publications relating to their trials...
July 19, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28734706/emerging-minimally-invasive-treatment-options-for-male-lower-urinary-tract-symptoms
#8
REVIEW
Giuseppe Magistro, Christopher R Chapple, Mostafa Elhilali, Peter Gilling, Kevin T McVary, Claus G Roehrborn, Christian G Stief, Henry H Woo, Christian Gratzke
CONTEXT: Lower urinary tract symptoms (LUTS) are one of the most common and troublesome nonmalignant conditions affecting quality of life in aging men. A spectrum of established medical and surgical options is available to provide relief of bothersome LUTS. Both the adverse events of medication and the morbidity with surgical treatment modalities have to be counterbalanced against efficacy. Novel minimally invasive treatment options aim to be effective, ideally to be performed in an ambulatory setting under local anaesthesia and to offer a more favourable safety profile than existing reference techniques...
July 19, 2017: European Urology
https://www.readbyqxmd.com/read/28734117/hybrid-piezoresistive-optical-tactile-sensor-for-simultaneous-measurement-of-tissue-stiffness-and-detection-of-tissue-discontinuity-in-robot-assisted-minimally-invasive-surgery
#9
Naghmeh M Bandari, Roozbeh Ahmadi, Amir Hooshiar, Javad Dargahi, Muthukumaran Packirisamy
No abstract text is available yet for this article.
July 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28734037/setting-up-a-pediatric-robotic-urology-program-a-usa-institution-experience
#10
REVIEW
Prithvi B Murthy, Eric D Schadler, Marcelo Orvieto, Gregory Zagaja, Arieh L Shalhav, Mohan S Gundeti
Implementing a robotic urological surgery program requires institutional support, and necessitates a comprehensive, detail-oriented plan that accounts for training, oversight, cost and case volume. Given the prevalence of robotic surgery in adult urology, in many instances it might be feasible to implement a pediatric robotic urology program within the greater context of adult urology. This involves, from an institutional standpoint, proportional distribution of equipment cost and operating room time. However, the pediatric urology team primarily determines goals for volume expansion, operative case selection, resident training and surgical innovation within the specialty...
July 22, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28733780/robotic-left-lateral-sectionectomy-as-stepwise-approach-for-cirrhotic-liver
#11
Raphael L C Araujo, Luís Antônio de Castro, Fernando E C Fellipe, Diego Burgardt, Durval R Wohnrath
Laparoscopy is considered the gold standard approach to perform left lateral sectionectomy (LLS). Furthermore, laparoscopy for cirrhotic patients can reduce intraoperative bleeding and postoperative morbidity when compared to open surgery. Although robotic surgery is feasible for both minor and major liver resections, it remains a work in progress and only few series reported this approach for cirrhotic patients. We reported two cases of 62-year-old men, both with hepatitis C virus and alcoholic cirrhosis, but with compensated liver functions (MELD 9-10 and Child-Pugh A5-A6)...
July 21, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28733746/comparative-analysis-of-perioperative-outcomes-of-robotic-versus-open-transversus-abdominis-release
#12
Luis A Martin-Del-Campo, Adam S Weltz, Igor Belyansky, Yuri W Novitsky
BACKGROUND: Transversus abdominis release (TAR) has evolved as an effective approach to complex abdominal wall reconstructions. Although the role of robotics in hernia surgery is rapidly expanding, the benefits of a robotic approach for abdominal wall reconstruction have not been established well. We aimed to compare the impact of the application of robotics to the TAR procedure on the perioperative outcomes when compared to the open TAR repairs. METHODS: Case-matched comparison of patients undergoing robotic TAR (R-TAR) at two specialized hernia centers to a matched historic cohort of open TAR (O-TAR) patients was performed...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28733738/robot-assisted-total-mesorectal-excision-for-rectal-cancer-case-matched-comparison-of-short-term-surgical-and-functional-outcomes-between-the-da-vinci-xi-and-si
#13
Luca Morelli, Gregorio Di Franco, Simone Guadagni, Leonardo Rossi, Matteo Palmeri, Niccolò Furbetta, Desirée Gianardi, Matteo Bianchini, Giovanni Caprili, Cristiano D'Isidoro, Franco Mosca, Andrea Moglia, Alfred Cuschieri
BACKGROUND: Robotic rectal resection with da Vinci Si has some technical limitations, which could be overcome by the new da Vinci Xi. We compare short-term surgical and functional outcomes following robotic rectal resection with total mesorectal excision for cancer, with the da Vinci Xi (Xi-RobTME group) and the da Vinci Si (Si-RobTME group). METHODS: The first consecutive 30 Xi-RobTME were compared with a Si-RobTME control group of 30 patients, selected using a one-to-one case-matched methodology from our prospectively collected Institutional database, comprising all cases performed between April 2010 and September 2016 by a single surgeon...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28733416/genetic-interaction-screens-in-schizosaccharomyces-pombe-using-the-pombe-epistasis-mapper-pem-system-and-a-manual-colony-replicator
#14
Isabelle Colson, Edgar Hartsuiker
In laboratories in which a colony-replicating robot is not available, manual replication provides a good, low-cost alternative for genetic interaction screening using the Pombe Epistasis Mapper (PEM) system. The protocol presented here describes the minimum number of steps required to identify genetic interactions. First, a query deletion is introduced to a library of deletion mutants by mating. Through a series of subsequent selection steps, single and double mutants are isolated and analyzed.
July 21, 2017: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/28733394/genetic-interaction-mapping-in-schizosaccharomyces-pombe-using-the-pombe-epistasis-mapper-pem-system-and-a-rotor-hda-colony-replicating-robot-in-a-1536-array-format
#15
Assen Roguev, Jiewei Xu, Nevan Krogan
This protocol describes an optimized high-throughput procedure for generating double deletion mutants in Schizosaccharomyces pombe using the colony replicating robot ROTOR HDA and the PEM (pombe epistasis mapper) system. The method is based on generating high-density colony arrays (1536 colonies per agar plate) and passaging them through a series of antidiploid and mating-type selection (ADS-MTS) and double-mutant selection (DMS) steps. Detailed program parameters for each individual replication step are provided...
July 21, 2017: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/28733299/robot-assisted-surgery-in-a-broader-healthcare-perspective-a-difference-in-difference-based-cost-analysis-of-a-national-prostatectomy-cohort
#16
Vibe Bolvig Hyldgård, Karin Rosenkilde Laursen, Johan Poulsen, Rikke Søgaard
OBJECTIVE: To estimate costs attributable to robot-assisted laparoscopic prostatectomy (RALP) as compared with open prostatectomy (OP) and laparoscopic prostatectomies (LP) in a National Health Service perspective. PATIENTS AND METHODS: Register-based cohort study of 4309 consecutive patients who underwent prostatectomy from 2006 to 2013 (2241 RALP, 1818 OP and 250 LP). Patients were followed from 12 months before to 12 months after prostatectomy with respect to service use in primary care (general practitioners, therapists, specialists etc) and hospitals (inpatient and outpatient activity related to prostatectomy and comorbidity)...
July 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28733200/hypothermic-cooling-measured-by-thermal-mri-imaging-feasibility-and-implications-for-virtual-imaging-in-the-urogenital-pelvis
#17
Douglas Skarecky, Hon Yu, Jennifer Linehan, Blanca Morales, Min-Ying Su, Peter Fwu, Thomas Ahlering
OBJECTIVE: To study the combination of thermal MRI imaging and novel hypothermic cooling, via an Endorectal Cooling Balloon (ECB) to assess the effective dispersion and temperature drop in pelvic tissue to potentially reduce inflammatory cascade in surgical applications. METHODS: Three male subjects, prior to undergoing robot-assisted radical prostatectomy (RARP), were cooled via an ECB, rendered MRI compatible by for patient safety Prior to ECB hypothermia. MRI studies were performed using a 3T scanner and included T2w anatomical scan for the pelvic structures, followed by a temperature mapping scan...
July 18, 2017: Urology
https://www.readbyqxmd.com/read/28732231/kernel-dynamic-policy-programming-applicable-reinforcement-learning-to-robot-systems-with-high-dimensional-states
#18
Yunduan Cui, Takamitsu Matsubara, Kenji Sugimoto
We propose a new value function approach for model-free reinforcement learning in Markov decision processes involving high dimensional states that addresses the issues of brittleness and intractable computational complexity, therefore rendering the value function approach based reinforcement learning algorithms applicable to high dimensional systems. Our new algorithm, Kernel Dynamic Policy Programming (KDPP) smoothly updates the value function in accordance to the Kullback-Leibler divergence between current and updated policies...
June 29, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28732186/assessing-the-impact-of-surgeon-experience-on-urinary-continence-recovery-after-robot-assisted-radical-prostatectomy-results-of-four-high-volume-surgeons
#19
Nicola Fossati, Ettore Di Trapani, Giorgio Gandaglia, Paolo Dell'Oglio, Paolo Umari, Nicolò Maria Buffi, Giorgio Guazzoni, Alexander Mottrie, Franco Gaboardi, Francesco Montorsi, Alberto Briganti, Nazareno Suardi
PURPOSE: To test the impact of surgeon experience on urinary continence (UC) recovery after robot-assisted radical prostatectomy (RARP). MATERIALS AND METHODS: The study included 1477 consecutive patients treated with RARP by four surgeons between 2006 and 2014. UC recovery was defined as being completely dry over a 24-hour period at follow-up. Surgeon experience was coded as the total number of RARP performed by the surgeon before the patient's operation. Multivariable analysis tested the association between surgeon experience and UC recovery...
July 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28731088/laser-engraved-carbon-nanotube-paper-for-instilling-high-sensitivity-high-stretchability-and-high-linearity-in-strain-sensors
#20
Yangyang Xin, Jian Zhou, Xuezhu Xu, Gilles Lubineau
There is an increasing demand for strain sensors with high sensitivity and high stretchability for new applications such as robotics or wearable electronics. However, for the available technologies, the sensitivity of the sensors varies widely. These sensors are also highly nonlinear, making reliable measurement challenging. Here we introduce a new family of sensors composed of a laser-engraved carbon nanotube paper embedded in an elastomer. A roll-to-roll pressing of these sensors activates a pre-defined fragmentation process, which results in a well-controlled, fragmented microstructure...
July 21, 2017: Nanoscale
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