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https://www.readbyqxmd.com/read/27812640/applications-for-a-hybrid-operating-room-in-thoracic-surgery-from-multidisciplinary-procedures-to-image-guided-video-assisted-thoracoscopic-surgery
#1
Ricardo Mingarini Terra, Juliano Ribeiro Andrade, Alessandro Wasum Mariani, Rodrigo Gobbo Garcia, Jose Ernesto Succi, Andrey Soares, Paulo Marcelo Zimmer
The concept of a hybrid operating room represents the union of a high-complexity surgical apparatus with state-of-the-art radiological tools (ultrasound, CT, fluoroscopy, or magnetic resonance imaging), in order to perform highly effective, minimally invasive procedures. Although the use of a hybrid operating room is well established in specialties such as neurosurgery and cardiovascular surgery, it has rarely been explored in thoracic surgery. Our objective was to discuss the possible applications of this technology in thoracic surgery, through the reporting of three cases...
September 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27746401/preclinical-determination-of-the-best-functional-position-for-transcatheter-heart-valves-implanted-in-rapid-deployment-bioprostheses
#2
Timm Schäfer, Christian Doose, Buntaro Fujita, Marc Utzenrath, Sandrine Egron, Christoph Schmitz, Smita Scholtz, Maximilian Kütting, Kavous Hakim-Meibodi, Jochen Börgermann, Jan Gummert, Ulrich Steinseifer, Stephan Ensminger
AIMS: The aim was to determine the best functional position of a transcatheter heart valve (THV) implanted as a valve-in-valve (ViV) procedure in small rapid deployment valves (RDV) in an in vitro model. METHODS AND RESULTS: A 21mm Perceval™, Enable™ or INTUITY™ RDV was mounted into a pulse duplicator and a 23mm balloon-expandable or a self-expanding THV was deployed (valve-in-valve) in two different positions. Under physiological hydrodynamic conditions, performance of the THV was characterized by mean transvalvular pressure gradient (MPG), effective orifice area (EOA) and regurgitation volume (RV)...
October 18, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27665141/ultrasonic-bone-localization-algorithm-based-on-time-series-cumulative-kurtosis
#3
Guillermo Robles, José Manuel Fresno, Romano Giannetti
The design and optimization of protective equipment and devices such as exoskeletons and prosthetics have the potential to be enhanced by the ability of accurately measure the positions of the bones during movement. Existing technologies allow a quite precise measurement of motion-mainly by using coordinate video-cameras and skin-mounted markers-but fail in directly measuring the bone position. Alternative approaches, as fluoroscopy, are too invasive and not usable during extended lapses of time, either for cost or radiation exposure...
September 22, 2016: ISA Transactions
https://www.readbyqxmd.com/read/27560953/submucosal-abscess-of-the-esophagus-caused-by-piriform-sinus-fistula-treated-with-transoral-video-laryngoscopic-surgery
#4
Satoshi Koyama, Kazunori Fujiwara, Tsuyoshi Morisaki, Takahiro Fukuhara, Katsuyuki Kawamoto, Hiroya Kitano, Hiromi Takeuchi
Piriform sinus fistula (PSF) is a rare branchial anomaly that causes repetitive acute suppurative thyroiditis or deep neck abscess. The definitive treatment of PSF is open neck surgery. However, such surgery has a cosmetic problem and a high risk of recurrence. Furthermore, identifying the fistula is difficult due to previous repetitive infections. We report a case of esophageal submucosal abscess caused by PSF treated with endoscopic mucosal incision. The patient underwent transoral video laryngoscopic surgery (TOVS), and endoscopy as well as fluoroscopy revealed complete closure of PSF without any complication...
August 25, 2016: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/27451058/a-new-protocol-for-wear-testing-of-total-knee-prostheses-from-real-joint-kinematic-data-towards-a-scenario-of-realistic-simulations-of-daily-living-activities
#5
Sami Abdel-Jaber, Claudio Belvedere, Jonathan Salvatore De Mattia, Alberto Leardini, Saverio Affatato
A new tendency in the field of wear testing of total knee replacements is represented by realistic simulations of various motor tasks of daily living (chair sitting and rising, squat, stair ascent, etc.). Various studies have shown in fact the limits of the ISO 14243 standards, in particular the concern about the ability of the level walking simulations to recreate the main wear mechanisms which occur on the knee implant during its in vivo lifespan. The recently proposed protocols for the simulation of these motor tasks still lack accuracy and consistency between the various degrees of freedom, which are necessary for a good replication of the mechanical behavior in a replaced knee...
September 6, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27441929/the-anterior-subcutaneous-pelvic-fixator-infix-in-an-anterior-posterior-compression-type-3-pelvic-fracture
#6
Rahul Vaidya, Fred Tonnos, Kerellos Nasr, Praveen Kanneganti, Gannon Curtis
OBJECTIVES: The purpose of this video is to describe the equipment, anatomy, and surgical technique of anterior subcutaneous pelvic fixation (INFIX) using pedicle screws and a rod in an Anterior Posterior Compression 3 pelvic fracture, as well as how to distract in lateral compression fractures. METHODS: The equipment required includes standard spine pedicle screw sets with long screws, 70-110 mm in length, and 7 or 8 mm in diameter. The approach is a mini open and one needs to be familiar with the iliac oblique, obturator outlet, and obturator inlet views...
August 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27441927/percutaneous-sacroiliac-screw-technique
#7
John Tidwell, Rosa Cho, J Spence Reid, Henry Boateng, Carol Copeland, Edward Sirlin
Remembering that preoperative planning, surgical indications, and fracture reduction are paramount for this procedure, presented here is our technique for performing percutaneous sacroiliac screws, both transiliac-transsacral and sacral style. A combination of video, still pictures, and fluoroscopy images will guide the viewer through the process we routinely use highlighting specific details. Patient positioning and intraoperative fluoroscopy imaging are critical to a successful procedure. Although inlet and outlet films remain important, we find the procedure best started on the lateral sacral view to reduce the need for start site, trajectory, and imaging position changes during the case...
August 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27441178/variability-in-flexion-extension-radiographs-of-the-lumbar-spine-a-comparison-of-uncontrolled-and-controlled-bending
#8
Boyle Cheng, Anthony E Castellvi, Reginald J Davis, David C Lee, Morgan P Lorio, Richard E Prostko, Chip Wade
BACKGROUND: While low back pain is one of the most prevalent, if not the most prevalent reasons for visits to physicians, a majority of patients with low back pain cannot be given a definitive diagnosis. While there have been substantial advances in imaging technologies over the past 30 years, relatively little has changed in the methodologies for evaluating functionality of the lumbar spine. The current standard of care for function assessment of the lumbar spine focuses on uncontrolled patient directed motion which results in increased inter-patient variability...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27434769/direct-retrograde-cholangioscopy-with-a-new-prototype-double-bending-cholangioscope
#9
Torsten Beyna, Harald Farnik, Christoph Sarrazin, Christian Gerges, Horst Neuhaus, Jörg G Albert
BACKGROUND AND STUDY AIMS: Direct retrograde cholangioscopy (DRC) enables high quality video imaging of the bile ducts and allows intraductal treatment with optical control. We evaluated the feasibility, success, and complications of a new third-generation prototype cholangioscope. PATIENTS AND METHODS: All consecutive patients from two tertiary endoscopy centers who had undergone DRC with the prototype were included. Indications for DRC were: evaluation of indeterminate strictures, filling defects, and complex bile duct stones...
October 2016: Endoscopy
https://www.readbyqxmd.com/read/27386494/primary-extraskeletal-pleural-osteosarcoma-a-rare-pleural-identity
#10
Hannah Copeland, Peter B Makdisi, Michael Duncan, Thomas C Wozniak, George Makdisi
A 69-year-old female with a history of a heart transplant 16 years prior, presented with a large left chest mass identified on fluoroscopy in the cardiac catheterization lab. The patient noted a 40 pound weight loss in one year. A chest X-ray (CXR) and chest computed tomography (CT) demonstrated a large complex cystic mass in the left chest. A CT guided aspiration was performed, and the cytology for the cyst fluid was negative for malignancy. The patient continued to have worsening shortness of breath, a repeat chest CT scan and magnetic resonance imaging (MRI) three months later, demonstrated a recurrence of the left pleural mass...
June 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27364423/biplanar-x-ray-fluoroscopy-for-sacroiliac-joint-fusion
#11
Vicente Vanaclocha-Vanaclocha, Francisco Verdú-López, Nieves Sáiz-Sapena, Juan Manuel Herrera, Marlon Rivera-Paz
Chronic pain originating from the sacroiliac joint (SI) can cause severe dysfunction. Although many patients respond to conservative management with NSAIDs, some do need further treatment in the form of SI joint fusion (SIJF). To achieve safe and successful SIJF, intraoperative x-ray fluoroscopy is mandatory to avoid serious damages to nearby vascular and neural structures. Each step of the procedure has to be confirmed by anteroposterior (AP) and lateral projections. With a single-arm x-ray, the arch has to be moved back and forth for the AP and lateral projections, and this lengthens the procedure...
July 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27231810/intubation-biomechanics-laryngoscope-force-and-cervical-spine-motion-during-intubation-in-cadavers-effect-of-severe-distractive-flexion-injury-on-c3-4-motion
#12
Bradley J Hindman, Ricardo B Fontes, Robert P From, Vincent C Traynelis, Michael M Todd, Christian M Puttlitz, Brandon G Santoni
OBJECTIVE With application of the forces of intubation, injured (unstable) cervical segments may move more than they normally do, which can result in spinal cord injury. The authors tested whether, during endotracheal intubation, intervertebral motion of an injured C3-4 cervical segment 1) is greater than that in the intact (stable) state and 2) differs when a high- or low-force laryngoscope is used. METHODS Fourteen cadavers underwent 3 intubations using force-sensing laryngoscopes while simultaneous cervical spine motion was recorded with lateral fluoroscopy...
November 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27173594/cartilage-loss-patterns-within-femorotibial-contact-regions-during-deep-knee-bend
#13
J Michael Johnson, Mohamed R Mahfouz
Osteoarthritis (OA) can alter knee kinematics and stresses. The relationship between cartilage loss in OA and kinematics is unclear, with existing work focusing on static wear and morphology. In this work, femorotibial cartilage maps were coupled with kinematics to investigate the relationship between kinematics and cartilage loss, allowing for more precise treatment and intervention. Cartilage thickness maps were created from healthy and OA subgroups (varus, valgus, and neutral) and mapped to a statistical bone atlas...
June 14, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27165955/pharyngeal-electrical-stimulation-for-treatment-of-dysphagia-in-subacute-stroke-a-randomized-controlled-trial
#14
Philip M Bath, Polly Scutt, Jo Love, Pere Clavé, David Cohen, Rainer Dziewas, Helle K Iversen, Christian Ledl, Suzanne Ragab, Hassan Soda, Anushka Warusevitane, Virginie Woisard, Shaheen Hamdy
BACKGROUND AND PURPOSE: Dysphagia is common after stroke, associated with increased death and dependency, and treatment options are limited. Pharyngeal electric stimulation (PES) is a novel treatment for poststroke dysphagia that has shown promise in 3 pilot randomized controlled trials. METHODS: We randomly assigned 162 patients with a recent ischemic or hemorrhagic stroke and dysphagia, defined as a penetration aspiration score (PAS) of ≥3 on video fluoroscopy, to PES or sham treatment given on 3 consecutive days...
June 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27150305/diagnosis-and-management-of-velopharyngeal-dysfunction
#15
REVIEW
Robert S Glade, Randolph Deal
Velopharyngeal dysfunction (VPD) describes any condition whereby the velopharyngeal valve does not properly close during the production of oral sounds. VPD contains multiple causes, including velopharyngeal mislearning (nasopharyngeal sound substitution for an oral sound), velopharyngeal incompetence (neurolophysiologic dysfunction causing poor pharyngeal movement), and velopharyngeal insufficiency (a structural or anatomic defect prevents velopharyngeal closure). Evaluation for VPD is best performed within the context of a multidisciplinary team and consists of history and physical examination, perceptual speech evaluation, and instrumental assessment of speech with either video nasoendoscopy or multiview speech fluoroscopy...
May 2016: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/27107408/tonsillectomy-in-adults-with-obstructive-sleep-apnea
#16
Thorbjörn Holmlund, Karl A Franklin, Eva Levring Jäghagen, Marie Lindkvist, Torbjörn Larsson, Carin Sahlin, Diana Berggren
OBJECTIVES/HYPOTHESIS: To study whether tonsillectomy is effective on obstructive sleep apnea (OSA) in adults with large tonsils. STUDY DESIGN: A multicenter prospective interventional study. METHODS: The study comprised 28 patients with OSA, an apnea-hypopnea index of > 10, large tonsils (Friedman tonsil size 3 and 4), and age 18 to 59 years. They were derived from 41 consecutive males and females with large tonsils referred for a suspicion of sleep apnea to the ear, nose, and throat departments in Umeå, Skellefteå, and Sunderbyn in northern Sweden...
April 23, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27072837/catheter-manipulation-analysis-for-objective-performance-and-technical-skills-assessment-in-transcatheter-aortic-valve-implantation
#17
Evangelos B Mazomenos, Ping-Lin Chang, Radoslaw A Rippel, Alexander Rolls, David J Hawkes, Colin D Bicknell, Adrien Desjardins, Celia V Riga, Danail Stoyanov
PURPOSE: Transcatheter aortic valve implantation (TAVI) demands precise and efficient handling of surgical instruments within the confines of the aortic anatomy. Operational performance and dexterous skills are critical for patient safety, and objective methods are assessed with a number of manipulation features, derived from the kinematic analysis of the catheter/guidewire in fluoroscopy video sequences. METHODS: A silicon phantom model of a type I aortic arch was used for this study...
June 2016: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/27048973/improving-the-diagnostic-yield-of-single-operator-cholangioscopy-guided-biopsy-of-indeterminate-biliary-strictures-%C3%A2-rose-to-the-rescue-with-video
#18
Shyam Varadarajulu, Ji Young Bang, Muhammad K Hasan, Udayakumar Navaneethan, Robert Hawes, Shantel Hebert-Magee
BACKGROUND AND AIMS: Tissue diagnosis, regardless of technique or endoscope used, can be challenging in patients with indeterminate biliary strictures (IDBSs). This exploratory study evaluated the utility and role of rapid onsite evaluation of touch imprint cytology (ROSE-TIC) when single-operator cholangioscopy (SOC)-guided biopsies of IDBSs are performed. METHODS: Patients with IDBSs were evaluated by intraprocedural ROSE-TIC during SOC-guided biopsy procedures...
October 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27040099/feasibility-of-nonradiation-eus-based-ercp-in-patients-with-uncomplicated-choledocholithiasis-with-video
#19
Janak N Shah, Yasser M Bhat, Chris M Hamerski, Steve D Kane, Kenneth F Binmoeller
BACKGROUND AND AIMS: ERCP inherently involves radiation exposure. Nonradiation ERCP has been described in pregnancy. Theoretically, the same techniques could be applied to the general population. We prospectively assessed the feasibility of nonradiation, EUS-based ERCP in nonpregnant patients with choledocholithiasis. METHODS: Consecutive patients referred for ERCP for choledocholithiasis were recruited over a 1-year period. Patients providing study consent underwent the following procedural protocol...
March 31, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/26987971/parameters-of-instrumental-swallowing-evaluations-describing-a-diagnostic-dilemma
#20
Jessica M Pisegna, Susan E Langmore
The aim of this study was to compare selected parameters of two swallow evaluations: fiberoptic endoscopic evaluation of swallowing (FEES) and the modified barium swallow (MBS) study. This was a cross-sectional, descriptive study. Fifty-five clinicians were asked to watch video recordings of swallow evaluations of 2 patients that were done using fluoroscopy and endoscopy simultaneously. In a randomized order, clinicians viewed 4 edited videos from simultaneous evaluations: the FEES and MBS videos of patient 1 and 2 each taking one swallow of 5 mL applesauce...
June 2016: Dysphagia
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