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https://www.readbyqxmd.com/read/28268748/electrosynthesis-of-magnetoresponsive-microrobot-for-targeted-drug-delivery-using-calcium-alginate
#1
Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson
Targeted drug delivery systems deliver drugs precisely to a specific targeted site inside the body, and can also release the drugs with controlled kinetics to prolong the efficacy of single dose administration. The advantageous properties of hydrogels make them attractive for use in the area of drug delivery. Calcium alginate is a pH sensitive hydrogel stable in acidic media and soluble in basic media. This enables the hydrogel to absorb and release aqueous solutions at certain ranges of pH values. By absorbing an aqueous solution containing a drug, an active drug release can be triggered at a specified range of pH value...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28266977/requesting-patient-characteristics-for-readmissions-noted-in-single-site-robotic-cholecystectomy-in-a-broadly-inclusive-patient-population-a-prospective-study
#2
Stephanie Biglarian, Namir Katkhouda
No abstract text is available yet for this article.
April 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28255734/robot-assisted-laparoscopic-transperitoneal-infrarenal-lymphadenectomy-in-patients-with-locally-advanced-cervical-cancer-by-single-docking-do-we-need-a-backup-procedure
#3
Fatih Gucer, Selim Misirlioglu, Nuri Ceydeli, Cagatay Taskiran
To present our initial experience on the feasibility of robotic transperitoneal para-aortic lymphadenectomy up to left renal vein via single docking approach by high port insertion technique followed by left shoulder docking as a rescue backup procedure in surgically obstructed patients undergoing surgical staging because of locally advanced cervical cancer (LACC). Prospective observational preliminary study. Canadian Task Force classification II-3. Tertiary-care academic affiliated private hospital. Ten patients with LACC who underwent robotic transperitoneal infrarenal para-aortic lymphadenectomy between January 2012 and December 2014...
March 2, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28254596/robot-assisted-stereotactic-biopsy-of-diffuse-intrinsic-pontine-glioma-a-single-centre-experience
#4
Andrea Carai, Angela Mastronuzzi, Alessandro De Benedictis, Raffaella Messina, Antonella Cacchione, Evelina Miele, Franco Randi, Giacomo Esposito, Andrea Trezza, Giovanna Stefania Colafati, Alessandra Savioli, Franco Locatelli, Carlo Efisio Marras
BACKGROUND: Diffuse Intrinsic Pontine Glioma (DIPG) is a childhood tumor with dismal prognosis. Emerging molecular signatures have paved the way for stereotactic biopsy in selected Centers. We present our experience in DIPG stereotactic needle biopsy using the Robotic Stereotactic Assisted system (ROSA™) in a consecutive pediatric series. METHODS: All stereotactic biopsy procedures for DIPG performed during the last year at our Institution were considered. All procedures were carried out using the ROSA™ surgical assistant through a precoronary approach...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28249654/transoral-robotic-surgery-for-management-of-cervical-unknown-primary-squamous-cell-carcinoma-updates-on-efficacy-surgical-technique-and-margin-status
#5
Mathew Geltzeiler, Sean Doerfler, Meghan Turner, William Greer Albergotti, Mark Kubik, Seungwon Kim, Robert Ferris, Umamaheswar Duvvuri
IMPORTANCE: Management of cervical unknown primary squamous cell carcinoma (CUP) has evolved with the introduction of transoral robotic surgery (TORS). OBJECTIVES: 1. To describe the efficacy of TORS lingual and palatine tonsillectomy in identifying the primary site of malignancy. 2. To explore how the extent of surgery affects diagnostic yield. 3. To report margin status of TORS resections. DESIGN, SETTING AND PARTICIPANTS: A retrospective, single-center cohort study utilizing a prospectively collected database of CUP patients in a high-volume tertiary referral center...
March 2017: Oral Oncology
https://www.readbyqxmd.com/read/28236012/application-of-a-computer-assisted-flexible-endoscope-system-for-transoral-surgery-of-the-hypopharynx-and-upper-esophagus
#6
Daniel T Friedrich, M O Scheithauer, J Greve, N Rotter, J Doescher, T K Hoffmann, P J Schuler
Zenker's diverticulum is a common pathology in the transition zone of the posterior hypopharynx and esophagus. Surgical treatment is routinely performed by ENT and general surgeons. Besides the traditional open transcervical diverticulectomy, the introduction of transoral rigid treatment led to a paradigm change and is now the preferred treatment option for patients who are fit for general anesthesia. The implementation of interventional flexible endoscopy has opened another new micro-invasive approach for patients with high morbidity...
February 24, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28226936/electrosynthesis-of-magnetoresponsive-microrobot-for-targeted-drug-delivery-using-calcium-alginate
#7
Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson, Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson, Salvador Pane, Katharina Riederer, Bradley J Nelson, Michael Klemmer, Chengzhi Hu
Targeted drug delivery systems deliver drugs precisely to a specific targeted site inside the body, and can also release the drugs with controlled kinetics to prolong the efficacy of single dose administration. The advantageous properties of hydrogels make them attractive for use in the area of drug delivery. Calcium alginate is a pH sensitive hydrogel stable in acidic media and soluble in basic media. This enables the hydrogel to absorb and release aqueous solutions at certain ranges of pH values. By absorbing an aqueous solution containing a drug, an active drug release can be triggered at a specified range of pH value...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28218495/design-and-evaluation-of-a-variable-stiffness-manual-operating-platform-for-laparoendoscopic-single-site-surgery-less
#8
Jinhua Li, Xuejie Li, Jianchen Wang, Yuan Xing, Shuxin Wang, Xiangyun Ren
BACKGROUND: Most of the existing robotic platforms for LESS have workspace and load capacity weaknesses, because of the limitation of one single incision. We have developed a LESS manual operating platform of which the stiffness of the insertion tube is controllable. METHODS: The system included two dexterous tool manipulators, a stereo-vision module and a variable stiffness insertion tube (VSIT), which was designed using phase-change material (mixed indium, gallium and stannum)...
February 20, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28215514/robotic-single-site-myomectomy-clinical-analysis-of-61consecutive-cases
#9
Eun Ji Choi, A Mi Rho, Sa Ra Lee, Kyungah Jeong, Hye-Sung Moon
STUDY OBJECTIVE: To report 61 consecutive cases of successful robotic single-site myomectomy(RSSM) and to evaluate the feasibility and safety of RSSM. DESIGN: Retrospective analysis of 61 cases of RSSM DESIGN: Classification: Canadian Task Force classification III SETTING: Department of Obstetrics and Gynecology, School of Medicine, Robot Surgery Center, Ewha Womans University PATIENTS: 61 patients who had RSSM INTERVENTIONS: Patients underwent RSSM by 3 gynecologic surgeons at Ewha Womans University Medical Center from December 2014 to May 2016...
February 12, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28205030/safety-and-feasibility-of-reduced-port-robotic-distal-gastrectomy-for-gastric-cancer-a-phase-i-ii-clinical-trial
#10
Seungho Lee, Jin Kyong Kim, Youn Nam Kim, Dong-Su Jang, Yoo Min Kim, Taeil Son, Woo Jin Hyung, Hyoung-Il Kim
INTRODUCTION: Theoretically, reducing the number of ports required in minimally invasive surgery for gastric cancer would further minimize trauma associated therewith. Advances in single-site surgery have afforded surgeons the ability to perform reduced-port distal gastrectomy via a robotic approach using the Single-Site™ system, eliminating restrictions on the movement of surgical instruments. METHODS: This phase I/II study was designed as a single-arm prospective trial of reduced-port robotic distal gastrectomy (RRDG) by a single surgeon (NCT02347956)...
February 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28183345/robot-assisted-single-site-compared-with-laparoscopic-single-incision-cholecystectomy-for-benign-gallbladder-disease-protocol-for-a-randomized-controlled-trial
#11
Lukasz Filip Grochola, Christopher Soll, Adrian Zehnder, Roland Wyss, Pascal Herzog, Stefan Breitenstein
BACKGROUND: Recent advances in robotic technology suggest that the utilization of the da Vinci Single-Site™ platform for cholecystectomy is safe, feasible and results in a shorter learning curve compared to conventional single-incision laparoscopic cholecystectomy. Moreover, the robot-assisted technology has been shown to reduce the surgeon's stress load compared to standard single-incision laparoscopy in an experimental setup, suggesting an important advantage of the da Vinci platform...
February 9, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28177208/minimally-invasive-hysterectomy-for-benign-indications-an-update
#12
C Emi Bretschneider, Karl Jallad, Marie F Paraiso
Hysterectomy is one of the most commonly performed surgeries worldwide. Indication for hysterectomy is most often benign, which includes conditions such as prolapse, abnormal uterine bleeding, fibroids and pelvic pain. A broad range of surgical approaches exists for hysterectomy, ranging from open to minimally invasive techniques. Under this minimally invasive umbrella, the following techniques are included: vaginal hysterectomy (VH), laparoscopic hysterectomy (LH), and variations of those two techniques, such as laparoscopicassisted vaginal hysterectomy (LAVH), robotic-assisted hysterectomy (RH), laparo-endoscopic single-site laparoscopic hysterectomy (LESS), mini-laparoscopic hysterectomy (MLH), and natural orifice transluminal endoscopic surgery (NOTES) hysterectomy...
February 8, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28153955/bi-modal-molecular-imaging-of-porcine-urinary-bladder-sentinel-lymph-nodes
#13
Hak J Lee, Christopher V Barback, Carl K Hoh, Qin Zhengtao, Kader Kareem, Hall J David, David R Vera, Christopher J Kane
The primary objective was to test the ability of a laparoscopic camera system to detect the fluorescent signal emanating from sentinel lymph nodes approximately two days after injection and imaging of a positron-emitting molecular imaging agent into the submucosa of the porcine urinary bladder. METHODS: Three female pigs underwent a submucosal injection of the bladder with fluorescent-tagged tilmanocept, radiolabeled with both gallium-68 (68Ga) and technetium-99m (99mTc). One hour after injection, a pelvic PET/CT scan was acquired for preoperative sentinel lymph node (SLN) mapping...
February 2, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28150094/universal-suprapubic-approach-for-complete-mesocolic-excision-and-central-vascular-ligation-using-the-da-vinci-xi-%C3%A2-system-from-cadaveric-models-to-clinical-cases
#14
Shen Ann Yeo, Gyoung Tae Noh, Jeong Hee Han, Chinock Cheong, Hubert Stein, Amy Kerdok, Byung Soh Min
There has been little enthusiasm for performing robotic colectomy for colon cancer in recent years due to multiple factors, one being that the previous robotic systems such as the da Vinci Si(®) (dVSi) were poorly designed for multi-quadrant surgery. The new da Vinci Xi(®) (dVXi) system enables colectomy with central mesocolic excision to be performed easily in a single docking procedure. We developed a universal port placement strategy to allow right and left hemicolectomies to be performed via a suprapubic approach and a Pfannensteil extraction site...
February 1, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28098574/new-developments-in-robotics-and-single-site-gynecologic-surgery
#15
Catherine A Matthews
Within the last 10 years there have been significant advances in minimal-access surgery. Although no emerging technology has demonstrated improved outcomes or fewer complications than standard laparoscopy, the introduction of the robotic surgical platform has significantly lowered abdominal hysterectomy rates. While operative time and cost were higher in robotic-assisted procedures when the technology was first introduced, newer studies demonstrate equivalent or improved robotic surgical efficiency with increased experience...
January 17, 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28090746/development-of-an-in-vivo-visual-robot-system-with-a-magnetic-anchoring-mechanism-and-a-lens-cleaning-mechanism-for-laparoendoscopic-single-site-surgery-less
#16
Haibo Feng, Dinghui Dong, Tengfei Ma, Jinlei Zhuang, Yili Fu, Yi Lv, Liyi Li
BACKGROUND: Surgical robot systems which can significantly improve surgical procedures have been widely used in laparoendoscopic single-site surgery (LESS). For a relative complex surgical procedure, the development of an in vivo visual robot system for LESS can effectively improve the visualization for surgical robot systems. METHODS: In this work, an in vivo visual robot system with a new mechanism for LESS was investigated. A finite element method (FEM) analysis was carried out to ensure the safety of the in vivo visual robot during the movement, which was the most important concern for surgical purposes...
January 16, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28086908/hiv-integration-sites-in-latently-infected-cell-lines-evidence-of-ongoing-replication
#17
Jori Symons, Abha Chopra, Eva Malantinkova, Ward De Spiegelaere, Shay Leary, Don Cooper, Chike O Abana, Ajantha Rhodes, Simin D Rezaei, Linos Vandekerckhove, Simon Mallal, Sharon R Lewin, Paul U Cameron
BACKGROUND: Assessing the location and frequency of HIV integration sites in latently infected cells can potentially inform our understanding of how HIV persists during combination antiretroviral therapy. We developed a novel high throughput sequencing method to evaluate HIV integration sites in latently infected cell lines to determine whether there was virus replication or clonal expansion in these cell lines observed as multiple integration events at the same position. RESULTS: We modified a previously reported method using random DNA shearing and PCR to allow for high throughput robotic processing to identify the site and frequency of HIV integration in latently infected cell lines...
January 13, 2017: Retrovirology
https://www.readbyqxmd.com/read/28078466/does-stoma-site-specimen-extraction-increase-postoperative-ileostomy-complication-rates
#18
Wanglin Li, Cigdem Benlice, Luca Stocchi, Hermann Kessler, Emre Gorgun, Meagan Costedio
BACKGROUND: Minimizing incisions has the potential to decrease hernia formation and wound complications following laparoscopic surgery. It is currently unknown if using the stoma site for specimen extraction affects outcomes. This study aims to evaluate the impact of stoma site extraction on postoperative complication rates in laparoscopic colorectal surgery. METHODS: After IRB approval, a retrospective comparative review of 738 consecutive patients (405 M) who underwent laparoscopic colorectal surgery with ileostomy between January 2008 and December 2014 was performed...
January 11, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28058471/a-comparative-study-of-outcomes-between-single-site-robotic-and-multi-port-laparoscopic-cholecystectomy-an-experience-from-a-tertiary-care-center
#19
Banujan Balachandran, Theadore A Hufford, Taha Mustafa, Kunal Kochar, Suela Sulo, Joubin Khorsand
BACKGROUND: The aim of this study was to compare the outcomes of single-site robotic cholecystectomy with multi-port laparoscopic cholecystectomy within a high-volume tertiary health care center. METHODS: A retrospective analysis of prospectively maintained data was conducted on patients undergoing single-site robotic cholecystectomy or multi-port laparoscopic cholecystectomy between October 2011 and July 2014. A single surgeon performed all the surgeries included in the study...
January 5, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28038476/single-site-robotic-radical-hysterectomy-and-sentinel-lymphnode-biopsy-in-cervical-cancer-a-case-report
#20
Alexandre Silva E Silva, Rodrigo Pinto Fernandes, Marcia Pereira de Araujo, João Paulo Mancusi de Carvalho, Filomena Marino Carvalho, Giovani Mastrantônio Favero, Jesus Paula Carvalho
Robotic surgeries for cervical cancer have several advantages compared with laparotomic or laparoscopic surgeries. Robotic single-site surgery has many advantages compared with the multiport approach, but its safety and feasibility are not established in radical oncologic surgeries. We report a case of a Federation of Gynecology and Obstetrics (FIGO) stage IB1 cervical carcinoma whose radical hysterectomy, sentinel lymph node mapping, and lymph node dissection were entirely performed by robotic single-site approach...
January 2017: Revista Brasileira de Ginecologia e Obstetrícia
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