Read by QxMD icon Read

Ultra minimally invasive

C Arens, C Betz, M Kraft, S Voigt-Zimmermann
The various stages of tumor growth are characterized by typical epithelial, vascular, and secondary connective tissue changes. Narrow Band Imaging (NBI) endoscopy is a minimally invasive imaging technique that presents vascular structures in particular at a higher contrast than white light endoscopy alone. In combination with high-resolution image recording and reproduction (high-definition television, HDTV; ultra-high definition, 4K), progress has been made in otolaryngological differential diagnostics, both pre- and intraoperatively...
November 23, 2016: HNO
Federico Ribet, Göran Stemme, Niclas Roxhed
An ultra-miniaturized electrochemical biosensor for continuous glucose monitoring (CGM) is presented. The aim of this work is to demonstrate the possibility of an overall reduction in sensor size to allow minimally invasive glucose monitoring in the interstitial fluid in the dermal region, in contrast to larger state-of-the-art systems, which are necessarily placed in the subcutaneous layer. Moreover, the reduction in size might be a key factor to improve the stability and reliability of transdermal sensors, due to the reduction of the detrimental foreign body reaction and of consequent potential failures...
October 4, 2016: Biosensors & Bioelectronics
Terry K Koo, Wingchi Edmund Kwok
Comprehensive assessments of scoliotic deformity and spinal instability require repetitive three-dimensional (3D) measurements of motion segments at different functional postures. However, accurate 3D measurement of the spine is a challenging task. In this paper, we present a novel, non-invasive, non-ionizing technique to quantify 3D poses of lumbar motion segments in terms of clinically meaningful anatomical coordinates. The technique used ultra-short echo time (UTE) magnetic resonance (MR) images to construct subject-specific geometrical models of individual vertebrae and registered them with 3D ultrasound dataset acquired during pose measurements...
November 2, 2016: Journal of Biomechanics
Jodi L Connell, Eric T Ritschdorff, Jason B Shear
Advances in microscopic three-dimensional (µ3D) printing provide a means to microfabricate an almost limitless range of arbitrary geometries, offering new opportunities to rapidly prototype complex architectures for microfluidic and cellular applications. Such 3D lithographic capabilities present the tantalizing prospect for engineering micromechanical components - for example, pumps and valves - for cellular environments comprised of smart materials whose size, shape, permeability, stiffness, and other attributes might be modified in real time to precisely manipulate ultra-low-volume samples...
October 26, 2016: Analytical Chemistry
Mordechai Duvdevani
No abstract text is available yet for this article.
December 2016: Journal of Endourology
Manuel Villanueva, Álvaro Iborra, Guillermo Rodríguez, Pablo Sanz-Ruiz
BACKGROUND: Isolated gastrocnemius contracture is thought to lead to numerous conditions. Although many techniques have been described for gastrocnemius recession, potential anesthetic, cosmetic, and wound-related complications can lead to patient dissatisfaction. Open and endoscopic recession techniques require epidural anesthesia, lower limb ischemia, and stitches and may lead to damage of the sural nerve, which is not under the complete control of the surgeon at all stages of the procedure...
October 3, 2016: BMC Musculoskeletal Disorders
Catherine A Matthews
Sacrocolpopexy remains the "gold standard" procedure for management of posthysterectomy vaginal vault prolapse with improved anatomic outcomes compared to native tissue vaginal repair. Despite absence of clinical data, sacrocolpopexy is increasingly being offered to women as a primary treatment intervention for uterine prolapse. While reoperation rates remain low, recurrent prolapse and vaginal mesh exposure appear to increase over time. The potential morbidity associated with sacrocolpopexy is higher than for native tissue vaginal repair with complications including sacral hemorrhage, discitis, small bowel obstruction, port site herniation, and mesh erosion...
November 2016: Current Urology Reports
Can Kockan, Faraz Hach, Iman Sarrafi, Robert H Bell, Brian McConeghy, Kevin Beja, Anne Haegert, Alexander W Wyatt, Stanislav V Volik, Kim N Chi, Colin C Collins, S Cenk Sahinalp
MOTIVATION: Successful development and application of precision oncology approaches require robust elucidation of the genomic landscape of a patient's cancer and, ideally, the ability to monitor therapy-induced genomic changes in the tumour in an inexpensive and minimally invasive manner. Thanks to recent advances in sequencing technologies, "liquid biopsy", the sampling of patient's bodily fluids such as blood and urine, is considered as one of the most promising approaches to achieve this goal...
August 16, 2016: Bioinformatics
Zhaohui He, Caixia Zhang, Guohua Zeng
OBJECTIVE: To report our experience of minimally invasive percutaneous nephrolithotomy(MPCNL) in managing upper urinary tract calculi complicated with severe spinal deformity. MATERIALS AND METHODS: Between August 2001 to December 2012, 16 upper urinary calculi in 13 patients with severe spinal deformity were treated by MPCNL. Preoperative investigation of the respiratory function, evaluation of anatomy by intravenous uro¬graphy (IVU) and CT scan, and preoperative kidney ultrasonagraphy with simulation of the percutaneous puncture were performed in all patients...
August 10, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Mirco Vadini, Maurizio D'Amario, Francesco De Angelis, Antonello Falco, Camillo D'Arcangelo
OBJECTIVE: Therapeutic options for dental trauma depend on the injuries' features. For patients with uncomplicated tooth fractures, adhesive materials and composite partial veneers may be a therapeutic solution that completely preserves healthy tooth structure. CLINICAL CONSIDERATIONS: An ultra-conservative approach, using indirect composite partial veneers to restore fractured anterior teeth is described in these case reports. CONCLUSION: Despite the position of the finish line in the middle of the clinical crown, this solution offers functional and esthetic outcomes using an indirect composite technique, and appears to be a suitable alternative to direct composite restorations or less conservative indirect veneers...
June 29, 2016: Journal of Esthetic and Restorative Dentistry
Timothy Y Wang, S Harrison Farber, Scott S Perkins, Adam G Back, Sarah A Byrd, Debbie Chi, David Vincent, Isaac O Karikari
STUDY DESIGN: Randomized controlled trial OBJECTIVE.: Compare radiation exposure between ultra-low radiation imaging (ULRI) with image enhancement and standard-dose fluoroscopy for patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS TLIF) SUMMARY OF BACKGROUND DATA.: While the benefits of MIS are lauded by many, there is a significant amount of radiation exposure to surgeon and operating room (OR) personnel. Our goal with this work was to see if by using ultra-low dose radiation settings coupled with image enhancement, this exposure could be minimized...
May 31, 2016: Spine
J R Yee, W M Kenkel, P Kulkarni, K Moore, A M Perkeybile, S Toddes, J A Amacker, C S Carter, C F Ferris
The advancement of neuroscience depends on continued improvement in methods and models. Here, we present novel techniques for the use of awake functional magnetic resonance imaging (fMRI) in the prairie vole (Microtus ochrogaster) - an important step forward in minimally-invasive measurement of neural activity in a non-traditional animal model. Imaging neural responses in prairie voles, a species studied for its propensity to form strong and selective social bonds, is expected to greatly advance our mechanistic understanding of complex social and affective processes...
September 2016: NeuroImage
Zheng Li, Calvin S H Ng
Uniportal VATS poses unique difficulties to the surgeon, mainly as a consequence of operating through a small single incision. The instruments in uniportal VATS have limited movement through the small incision. In addition, the approach to the surgical operating site is unidirectional, which may restrict vision and retraction, and unavoidably suffers from instrument fencing. Recent thoracoscopic technology in the form of a wide variable angled lens has to some extent improved these shortcomings. The development of an extendable flexible thoracoscope and wireless steerable endoscope (WSE) systems can further improve the visualization for surgery and reduce or even remove fencing between endoscope and instruments...
March 2016: Annals of Cardiothoracic Surgery
Vic A Narurkar, Joel L Cohen, Steven Dayan, Michael S Kaminer, Alexander Rivkin, Ava Shamban, Jonathan M Sykes, Craig F Teller, Susan H Weinkle, W Philip Werschler, Adrienne Drinkwater, Michael L Pucci, Conor J Gallagher
BACKGROUND: The HARMONY study is the first clinical trial to assess the impact of a global approach to facial rejuvenation with several minimally invasive modalities, using patient-reported outcome measures. OBJECTIVE: Provide details of this treatment approach and describe investigators' experiences and recommendations based on this study. METHODS: This multicenter, 4-month study evaluated subject satisfaction with and psychological impact of combined treatment with VYC-20L (Juvéderm Voluma XC), HYC-24L (Juvéderm Ultra XC), HYC-24L+ (Juvéderm Ultra Plus XC), onabotulinumtoxinA (Botox), and bimatoprost 0...
May 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Madhu Sudan Agrawal, Ketan Agarwal, Tarun Jindal, Manoj Sharma
INTRODUCTION: Percutaneous nephrolithotomy (PCNL) has witnessed rapid advancements, the latest being ultra-mini-percutaneous nephrolithotomy (UMP), which makes the use of 11-13F sheaths as compared to 24-30F sizes used in conventional PCNL. This miniaturization aims to reduce morbidity and improve patient outcomes. We evaluated the safety and efficacy of UMP and report our ourtcomes. PATIENTS AND METHODS: A total of 120 patients underwent UMP from July 2012 to March 2014...
April 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
Jose Manuel Rojo-Manaute, Alberto Capa-Grasa, Francisco Chana-Rodríguez, Ruben Perez-Mañanes, Guillermo Rodriguez-Maruri, Pablo Sanz-Ruiz, Jorge Muñoz-Ledesma, Mikel Aburto-Bernardo, Luis Esparragoza-Cabrera, Miguel Del Cerro-Gutiérrez, Javier Vaquero-Martín
OBJECTIVES: The purpose of this study was to compare the outcomes of 1-mm ultra-minimally invasive ultrasound-guided carpal tunnel release and 2-cm blind mini-open carpal tunnel release. METHODS: We conducted a single-center individual parallel-group controlled-superiority randomized control trial in an ambulatory office-based setting at a third-level referral hospital. Eligible participants had clinical signs of primary carpal tunnel syndrome and positive electrodiagnostic test results and were followed for 12 months...
June 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Carla C Winter, Kritika S Katiyar, Nicole S Hernandez, Yeri J Song, Laura A Struzyna, James P Harris, D Kacy Cullen
UNLABELLED: Neurotrauma, stroke, and neurodegenerative disease may result in widespread loss of neural cells as well as the complex interconnectivity necessary for proper central nervous system function, generally resulting in permanent functional deficits. Potential regenerative strategies involve the recruitment of endogenous neural stem cells and/or directed axonal regeneration through the use of tissue engineered "living scaffolds" built to mimic features of three-dimensional (3-D) in vivo migratory or guidance pathways...
July 1, 2016: Acta Biomaterialia
Eduardo Azevedo, Andressa Silva, Raquel Martins, Monica L Andersen, Sergio Tufik, Gilberto M Manzano
OBJECTIVE: The evaluation of selective activation of C-fibers to record evoked potentials using the association of low-power diode laser (810 nm), tiny-area stimulation and skin-blackening. METHOD: Laser-evoked potentials (LEPs) were obtained from 20 healthy young subjects. An aluminum plate with one thin hole was attached to the laser probe to provide tiny-area stimulation of the hand dorsum and the stimulated area was covered with black ink. RESULTS: The mean intensity used for eliciting the ultra-late laser-evoked potential (ULEP) was 70 ± 32 mW...
March 2016: Arquivos de Neuro-psiquiatria
N Khalili, H E Naguib, R H Kwon
Human intervention can be replaced through the development of tools resulting from utilization of sensing devices possessing a wide range of applications including humanoid robots or remote and minimally invasive surgeries. Similar to the five human senses, sensors interface with their surroundings to stimulate a suitable response or action. The sense of touch which arises in human skin is among the most challenging senses to emulate due to its ultra high sensitivity. This has brought forth novel challenging issues to consider in the field of biomimetic robotics...
May 14, 2016: Soft Matter
Anna Wright, Nick Rukin, Daron Smith, Jean De la Rosette, Bhaskar K Somani
New minimally invasive percutaneous nephrolithotomy (PCNL) techniques have changed the management of renal stones. We discuss the technological advances in PCNL and explain the meaning, requirements and set up costs for each of these 'newer' techniques.
April 2016: Therapeutic Advances in Urology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"