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https://www.readbyqxmd.com/read/28813999/upper-limb-prosthetic-control-using-wearable-multichannel-mechanomyography
#1
Samuel Wilson, Ravi Vaidyanathan
In this paper we introduce a robust multi-channel wearable sensor system for capturing user intent to control robotic hands. The interface is based on a fusion of inertial measurement and mechanomyography (MMG), which measures the vibrations of muscle fibres during motion. MMG is immune to issues such as sweat, skin impedance, and the need for a reference signal that is common to electromyography (EMG). The main contributions of this work are: 1) the hardware design of a fused inertial and MMG measurement system that can be worn on the arm, 2) a unified algorithm for detection, segmentation, and classification of muscle movement corresponding to hand gestures, and 3) experiments demonstrating the real-time control of a commercial prosthetic hand (Bebionic Version 2)...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813548/incentivizing-transradial-access-for-primary-percutaneous-coronary-intervention-while-maintaining-timely-reperfusion
#2
Robert W Yeh, Ajay J Kirtane, Sunil V Rao
No abstract text is available yet for this article.
August 16, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28809724/comparison-of-hemostasis-times-with-a-kaolin-based-hemostatic-pad-quikclot-radial-vs-mechanical-compression-tr-band-following-transradial-access-a-pilot-prospective-study
#3
Jonathan S Roberts, Jianli Niu, Juan A Pastor-Cervantes
BACKGROUND: Hemostasis following transradial access (TRA) is usually achieved by mechanical compression. We investigated use of the QuikClot Radial hemostasis pad (Z-Medica) compared with the TR Band (Terumo Medical) to shorten hemostasis after TRA. METHODS: Thirty patients undergoing TRA coronary angiography and/or percutaneous coronary intervention were randomized into three cohorts post TRA: 10 patients received mechanical compression with the TR Band, 10 patients received 30 min of compression with the QuikClot Radial pad, and 10 patients received 60 min of compression with the QuikClot Radial pad...
August 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28805035/one-catheter-or-two-tomayto-or-tomahto
#4
EDITORIAL
Arnold H Seto, Morton J Kern
This retrospective study compares the performance of transradial diagnostic procedures using the single versus Judkins catheter approach. The Judkins approach had a 15% lower patient radiation exposure than single catheter approach while fluoroscopy time was comparable. Future studies of comparing such techniques may always be limited by operator preference, experience, and comfort.
August 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28781831/iatrogenic-right-coronary-artery-dissection-caused-by-diagnostic-transradial-cardiac-catheterization
#5
David Baghdasaryan, Aram Nazaryan
We are presenting rare, but life-threatening complication of diagnostic coronary catheterization. To overcome the problem requires operator's experience and appropriate actions. We want to share our experience to interventionalists to be aware and ready to recognize and overcome such complication.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28777096/beam-projections-and-radiation-exposure-in-transradial-and-transfemoral-approaches-during-coronary-angiography
#6
Ali Tarighatnia, Amirhossien Mohammadalian, Morteza Ghojazade, Leili Pourafkari, Alireza Farajollahi
OBJECTIVE: We aimed to compare the operator and patient radiation exposure in standard projections during elective diagnostic coronary angiography procedures via transradial (TRA) versus transfemoral (TFA) approaches. METHODS: In this analytical cross-sectional study, a total of 202 consecutive patients who were candidates for diagnostic coronary angiography were randomized to undergo the procedure via TFA or TRA approaches (101 in each group). Patients with abnormal Allen test and history of coronary artery bypass surgery, valvular heart disease, and unsuccessful coronary angiography were excluded from the study...
August 2, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28774222/transradial-delivery-of-a-renal-snorkel-during-complex-endovascular-aortic-aneurysm-repair
#7
Jordan R Stern, Sharif H Ellozy
Transradial access has been described in a variety of clinical contexts but has been rarely utilized for visceral artery interventions and during complex endovascular aortic aneurysm repair (EVAR) when upper extremity access is required. This is usually accomplished via brachial artery access, and although brachial access is generally safe and effective, radial access may offer some benefits with regard to patient comfort and potential complications. Here we report a case of successful delivery of a renal snorkel via a radial artery approach during EVAR...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28766859/transulnar-cardiac-catheterization-and-percutaneous-coronary-intervention-techniques-transradial-comparisons-anatomical-considerations-and-comprehensive-literature-review
#8
Subrata Kar
Ulnar arterial access for cardiac catheterization and intervention is an alternative approach compared with radial or femoral access. Ulnar access is infrequently performed since the radial artery is readily palpable and is commonly used worldwide to minimize vascular complications from femoral access. Nevertheless, ulnar access provides a suitable access site in patients who are poor candidates for femoral access, have pre-existing radial occlusion, radial artery hypoplasia or hyperplasia from prior radial artery procedures, radial stenosis, radial loops, radial tortuosity, small radial arteries, and/or have future need for radial graft for dialysis or coronary artery bypass graft...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28757286/transradial-versus-transfemoral-access-for-hepatic-chemoembolization-intrapatient-prospective-single-center-study
#9
Roberto Iezzi, Maurizio Pompili, Alessandro Posa, Eleonora Annicchiarico, Matteo Garcovich, Biagio Merlino, Elena Rodolfino, Vincenzo Di Noia, Michele Basso, Alessandra Cassano, Carlo Barone, Antonio Gasbarrini, Riccardo Manfredi, Cesare Colosimo
PURPOSE: To compare transfemoral approach (TFA) and transradial approach (TRA) in patients undergoing hepatic chemoembolization in terms of safety, feasibility, and procedural variables, including fluoroscopy time, radiation dose (reference air kerma [RAK]), and patient preference. MATERIALS AND METHODS: A single-center prospective intrapatient comparative study was conducted with 42 consecutive patients with hepatic malignancies who received 2 consecutive treatment sessions of unilobar hepatic chemoembolization within a 4-week interval over a 6-month period with both TRA and TFA...
July 27, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28756423/incidental-detection-of-arteria-lusoria-during-transradial-coronary-intervention
#10
Nagaraja Moorthy, Natraj Setty, Jayashree Kharge, Thagachagere R Raghu, Manjunath C Nanjappa
Transradial access has become popular and preferred approach in coronary interventions due to high success rate, low risk of complications and patients' comfort. However various anatomical variations and anomalies may pose technical challenge. Arteria lusoria is an uncommon condition which is technically challenging and may warrant cross-over to alternate access. We report a middle aged male presenting with acute coronary syndrome in which arteria lusoria was incidentally detected during right transradial coronary intervention...
August 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28756422/transradial-coronary-angiogram-in-a-sitting-position
#11
Konstantinos Marmagkiolis, Mehmet Cilingiroglu, Cindy L Grines
Transradial coronary angiography has significantly increased in the United States over the last decade. When the patient is unable to lie down despite analgesia and conscious sedation, general anesthesia may be recommended. We report the feasibility of transradial coronary angiogram in a sitting position.
August 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28742134/hemostasis-pad-combined-with-compression-device-after-transradial-coronary-procedures-a-randomized-controlled-trial
#12
Si-Hyuck Kang, Donghoon Han, Sehun Kim, Chang-Hwan Yoon, Jin-Joo Park, Jung-Won Suh, Young-Seok Cho, Tae-Jin Youn, In-Ho Chae
BACKGROUND: Arterial access and hemostasis are important processes during percutaneous coronary procedures. In this study, we tested if the use of chitosan-based pads on top of compression devices could improve hemostasis efficacy compared with compression devices alone after transradial coronary angiography or interventions. METHODS: This study was a single-center open-label randomized controlled trial. Patients who underwent coronary angiography or intervention with the transradial approach were randomly assigned to the study (compression device and a chitosan-based pad) or control (compression devices alone) group in a 2:1 fashion...
2017: PloS One
https://www.readbyqxmd.com/read/28730857/controversies-in-complex-percutaneous-coronary-intervention-radial-versus-femoral
#13
Ian C Gilchrist, Stephen O Awuor, Rhian E Davies, Anene C Ukaigwe
Evolution in the technology used in the cardiac catheterization laboratory has permitted a migration from the femoral to radial artery access for many interventional procedures while concurrently improving outcomes. As a disruptive technology, transradial access has been associated with several controversies including a dichotomous relationship with femoral access. Areas covered: Several different patient subsets along with perceived technical challenges in interventional cardiology are reviewed with regard to the issue of access site...
July 21, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28717826/operator-radiation-exposure-during-transradial-coronary-angiography-effect-of-single-vs-double-catheters
#14
A Tarighatnia, L Pourafkari, A Farajollahi, A H Mohammadalian, M Ghojazadeh, N D Nader
BACKGROUND: The right radial artery has gained popularity as the preferred access site for coronary angiography. To save time and limit the radiation exposure of operators and patients, newly designed catheters can be used to access both the right and left coronary arteries. The aim of this study was to compare operator radiation exposure between single-catheter (SCA) and two-catheter approaches (TCA). METHODS: In all, 256 patients undergoing diagnostic coronary angiography via the right radial artery in a high-volume medical center were randomized to either the SCA or TCA group...
July 17, 2017: Herz
https://www.readbyqxmd.com/read/28708754/the-effect-of-vasodilatory-medications-on-radial-artery-spasm-in-patients-undergoing-transradial-coronary-artery-procedures-a-systematic-review
#15
Elizabeth Curtis, Ritin Fernandez, Astin Lee
BACKGROUND: The uptake of percutaneous coronary procedures via the radial artery has increased internationally due to the decreased risk of complications and increased patient satisfaction. The increased susceptibility of the radial artery to spasm however presents a potential risk for procedural failure. Although most experts agree on the need for prophylactic medications to reduce radial artery spasm, currently there is inconsistency in literature regarding the most effective vasodilatory medication or combination of medications...
July 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28702112/patient-preference-for-transradial-access-over-transfemoral-access-for-cerebrovascular-procedures
#16
Sudhakar R Satti, Ansar Z Vance, Sohil N Golwala, Tim Eden
PURPOSE: Shared decision-making, when physicians and patients collaborate and agree on health care decisions, is a key tenant of patient-centered care. Choice of access site for neurovascular procedures is rarely a shared decision point between physicians and patients. We present our initial evaluation of patient preference for radial over femoral access for cerebrovascular procedures. MATERIALS AND METHODS: IRB approved single-center, prospective, and consecutive survey of all patients undergoing transradial access for cerebrovascular imaging and intervention...
June 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28698995/transradial-versus-transfemoral-approach-in-patients-undergoing-primary-percutaneous-coronary-intervention-for-st-elevation-acute-myocardial-infarction-insight-from-the-credo-kyoto-ami-registry
#17
Yugo Yamashita, Hiroki Shiomi, Takeshi Morimoto, Hidenori Yaku, Shuichiro Kaji, Yutaka Furukawa, Yoshihisa Nakagawa, Kenji Ando, Kazushige Kadota, Mitsuru Abe, Masaharu Akao, Kazuya Nagao, Satoshi Shizuta, Koh Ono, Takeshi Kimura
Recent randomized clinical trials demonstrated that transradial approach was a preferred approach for primary percutaneous coronary intervention (PCI) in ST-elevation acute myocardial infarction (STEMI). However, clinical outcomes of transradial approach in STEMI have not been adequately evaluated yet in the real-world practice, which includes hemodynamically unstable high-risk patients. We identified 3662 STEMI patients who had primary PCI within 24 h after symptom onset and were treated by transradial (N = 471) or transfemoral (N = 3191) approach in the CREDO-Kyoto AMI registry...
July 11, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28690943/transradial-vs-transfemoral-approach-in-cardiac-catheterization-a-literature-review
#18
REVIEW
Ibrar Anjum, Muhammad Adnan Khan, Muhammad Aadil, Aniqa Faraz, Mudassir Farooqui, Amerah Hashmi
The main objective of this review paper is to study the comparison between transradial and transfemoral approach in catheterization. Transradial and transfemoral are two main approaches which are used as a diagnostic and therapeutic purpose in catheterization. The transradial approach in interventional cardiology is safe, effective, and feasible as compared to the transfemoral approach. The aim of this study is to compare pros and cons of transradial vs. transfemoral approach in catheterization. We conducted this systematic review on the role of transradial vs...
June 3, 2017: Curēus
https://www.readbyqxmd.com/read/28667806/abdominal-infrarenal-aortic-stenosis-approached-through-a-full-transradial-approach-a-case-series
#19
Italo Porto, Francesco Burzotta, Cristina Aurigemma, Massimo Gustapane, Carlo Trani
Six consecutive patients (3 men; mean age, 63 ± 14 years; age range, 38-81 years) with infrarenal abdominal aortic stenosis underwent unilateral or bilateral transradial approach for stenting of the aortic lesion. In 4 cases, isolated aortic stenting was performed through single transradial approach (in 2 cases with precise alignment to the proximal end of previously deployed iliac stents), whereas in the other 2 cases bilateral transradial approach was used for aortic stenting followed by bilateral stenting of the proximal iliac arteries...
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28667260/user-adaptation-in-myoelectric-man-machine-interfaces
#20
Janne M Hahne, Marko Markovic, Dario Farina
State of the art clinical hand prostheses are controlled in a simple and limited way that allows the activation of one function at a time. More advanced laboratory approaches, based on machine learning, offer a significant increase in functionality, but their clinical impact is limited, mainly due to lack of reliability. In this study, we analyse two conceptually different machine learning approaches, focusing on their robustness and performance in a closed loop application. A classification (finite number of classes) and a regression (continuous mapping) based projection of EMG into external commands were applied while artificially introducing non-stationarities in the EMG signals...
June 30, 2017: Scientific Reports
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