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https://www.readbyqxmd.com/read/28894011/palpitations-in-a-72-year-old-woman
#1
Claire A Martin, Parag R Gajendragadkar, Sharad Agarwal
CLINICAL INTRODUCTION: A 72-year-old woman presented with an 8-year history of palpitations occurring every few weeks. They were sudden in onset, were associated with dizziness and could last for up to 2 hours. She was prescribed bisoprolol which reduced the frequency of events but did not abolish them. Baseline ECG and echocardiography were normal. She was referred for electrophysiological study. Despite initial difficulties, diagnostic catheters were placed in the right ventricular (RV) apex and in the coronary sinus (CS) via the right internal jugular vein and superior vena cava (SVC) (figure 1A)...
October 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28870555/botulinum-toxin-alleviates-dysphagia-of-patients-with-inclusion-body-myositis
#2
Aleksi Schrey, Laura Airas, Manu Jokela, Jaakko Pulkkinen
OBJECTIVES: Oropharyngeal dysphagia is a disabling and undertreated symptom that often occurs in patients with sporadic inclusion body myositis (s-IBM). In this study, we examined the effect of botulinum neurotoxin A (BoNT-A) injections to the cricopharyngeus muscle (CPM) of patients with s-IBM and dysphagia. PATIENTS, MATERIALS AND METHODS: A single-center retrospective study involving 40 biopsy-proven s-IBM-patients treated in the District of Southwest Finland from 2000 to 2013...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28866457/randomized-trial-of-cholangioscopy-guided-laser-lithotripsy-versus-conventional-therapy-for-large-bile-duct-stones-with-videos
#3
James Buxbaum, Ara Sahakian, Christopher Ko, Preeth Jayaram, Christianne Lane, Chung Yao Yu, Ravi Kankotia, Loren Laine
BACKGROUND: Bile duct stones >1 cm have a decreased incidence of successful endoscopic extraction and often require lithotripsy. Although prior guidelines suggested mechanical lithotripsy for large CBD stones, current guidelines suggest cholangioscopy-guided lithotripsy as an adjunct with or without balloon dilation or mechanical lithotripsy. However, no randomized trials have assessed the utility of this practice. METHODS: Patients with bile duct stones >1 cm in diameter were randomized in a 2:1 ratio to cholangioscopy-guided laser lithotripsy versus conventional therapy only...
August 30, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28864483/cadaveric-study-of-movement-in-the-unstable-upper-cervical-spine-during-emergency-management-tracheal-intubation-and-cervical-spine-immobilisation-a-study-protocol-for-a-prospective-randomised-crossover-trial
#4
Shiyao Liao, Erik Popp, Petra Hüttlin, Frank Weilbacher, Matthias Münzberg, Niko Schneider, Michael Kreinest
INTRODUCTION: Emergency management of upper cervical spine injuries often requires cervical spine immobilisation and some critical patients also require airway management. The movement of cervical spine created by tracheal intubation and cervical spine immobilisation can potentially exacerbate cervical spinal cord injury. However, the evidence that previous studies have provided remains unclear, due to lack of a direct measurement technique for dural sac's space during dynamic processes...
September 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/28820559/percutaneous-mitral-balloon-valvuloplasty-in-a-pregnant-patient-under-guidance-of-three-dimensional-transesophageal-echocardiography-and-right-atrial-mapping-without-using-fluoroscopy
#5
Begum Uygur, Hamdi Pusuroglu, Aydin Yildirim
Mitral stenosis is the most common valvular pathology complicating pregnancy. Herein are reported the details of a 26-week pregnant patient with severe mitral stenosis and NYHA class 3-4 symptoms. Percutaneous mitral balloon valvuloplasty was performed under guidance of three-dimensional transesophageal echocardiography and right atrial mapping, without using fluoroscopy. Video 1: Two-dimensional transesophageal echocardiography. The four-chamber view shows limited opening of the rheumatic mitral valve. Video 2: Two-dimensional transesophageal echocardiography while the balloon is inflated...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820553/is-transcatheter-tricuspid-valve-in-valve-implantation-feasible-in-the-presence-of-right-atrial-thrombus
#6
Jan Henzel, Zofia Dzielińska, Marek Konka, Maciej Dąbrowski, Marcin Protasiewicz, Adam Witkowski, Marcin Demkow
The case is reported of a successful transcatheter implantation of an Edwards SAPIEN 3 valve (29 mm) into a failing tricuspid bioprosthesis (Sorin Pericarbon, 31 mm). The procedure was performed in a 69-year-old woman with post-rheumatic mitral and tricuspid valve disease. Multiple previous cardiac surgeries precluded the use of another surgical approach. A large, organized, two-piece thrombus in the enlarged right atrium was not considered an absolute contraindication to the procedure. The SAPIEN 3 valve was implanted under general anesthesia, via a femoral venous access, under three-dimensional transesophageal echocardiography guidance...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28809633/the-potential-of-the-icuc%C3%A2-documentation-concept-to-improve-trauma-surgery
#7
P Regazzoni, A A Fernandez Dell'oca, S M Perren
Conventional documentation of surgical procedures using only pre- and postoperative X-ray images and possibly a few intra-operative pictures does not allow secondary analysis of the technical performance in detail. In particular, the quality of the handling of tissues and surgical tools cannot be judged «post hoc», i.e. after the end of the surgical procedure. The invasiveness of the surgical act cannot yet be quantified. Surrogate invasiveness indices have therefore been developed. Furthermore, conventional documentation does not allow evaluation of the proper use of the C-arm both technically and with regard to fluoroscopy time...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28804031/effects-of-a-brief-educational-program-on-optimization-of-fluoroscopy-to-minimize-radiation-exposure-during-endoscopic-retrograde-cholangiopancreatography
#8
Monique T Barakat, Nirav C Thosani, Robert J Huang, Abhishek Choudhary, Rajan Kochar, Shivangi Kothari, Subhas Banerjee
BACKGROUND & AIMS: Fluoroscopy during endoscopic retrograde cholangiopancreatography (ERCP) is increasingly performed by therapeutic endoscopists, many of whom have not received formal training in modulating fluoroscopy use to minimize radiation exposure. Exposure to ionizing radiation has significant health consequences for patients and endoscopists. We aimed to evaluate whether a 20-minute educational intervention for endoscopists would improve use of fluoroscopy and decrease ERCP-associated exposure to radiation for patients...
August 10, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28780107/validation-of-2-noninvasive-markerless-reconstruction-techniques-in-biplane-high-speed-fluoroscopy-for-3-dimensional-research-of-bovine-distal-limb-kinematics
#9
M Weiss, E Reich, S Grund, C K W Mülling, S M Geiger
Lameness severely impairs cattle's locomotion, and it is among the most important threats to animal welfare, performance, and productivity in the modern dairy industry. However, insight into the pathological alterations of claw biomechanics leading to lameness and an understanding of the biomechanics behind development of claw lesions causing lameness are limited. Biplane high-speed fluoroscopic kinematography is a new approach for the analysis of skeletal motion. Biplane high-speed videos in combination with bone scans can be used for 3-dimensional (3D) animations of bones moving in 3D space...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28735768/cervical-flexion-and-extension-includes-anti-directional-cervical-joint-motion-in-healthy-adults
#10
Xu Wang, René Lindstroem, Maciej Plocharski, Lasse Riis Østergaaard, Thomas Graven-Nielsen
BACKGROUND CONTEXT: Anti-directional cervical joint motion has previously been demonstrated. However, quantitative studies of anti-directional and pro-directional cervical flexion and extension motions have not been published. PURPOSE: Quantitative assessment of directional and anti-directional cervical joint motion in healthy subjects. STUDY DESIGN: Observational study. PATIENTS SAMPLE: Eighteen healthy subjects. OUTCOME MEASURES: Anti-directional and pro-directional cervical flexion and extension motion from each cervical joint in degrees...
July 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28703332/validation-of-biplane-high-speed-fluoroscopy-combined-with-two-different-non-invasive-tracking-methodologies-for-measuring-in-vivo-distal-limb-kinematics-of-the-horse
#11
S M Geiger, E Reich, P Böttcher, S Grund, J Hagen
BACKGROUND: Biplane high-speed fluoroscopy is a new method for gait analysis of the equine distal extremity. This is the first study validating the non-invasive tracking possibilities (Autoscoping and Scientific Rotoscoping) taking equine anatomy into account. OBJECTIVES: To determine the resolution with which Autoscoping and Scientific Rotoscoping depict motion of the equine phalanges in comparison to the invasive gold standard marker-based registration. STUDY DESIGN: Comparative ex vivo study...
July 13, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28697073/percutaneous-repair-of-a-schatzker-iii-tibial-plateau-fracture-assisted-by-arthroscopy
#12
Kenneth A Egol, Matthew Cantlon, Nina Fisher, Kari Broder, Aldo Reisgo
PURPOSE: Tibial plateau fractures are articular fractures that sometimes prove difficult to effectively manage and treat. Although fluoroscopy is frequently used to assess the articular reduction in the surgical repair of tibial plateau fractures, this video demonstrates the additional benefit of arthroscopy in assisting with the articular reconstruction of a Schatzker III tibial plateau fracture. METHODS: The goal of operative treatment of tibial plateau is reconstruction of the articular surface followed by reestablishment of tibial alignment...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28692969/an-mr-based-model-for-cardio-respiratory-motion-compensation-of-overlays-in-x-ray-fluoroscopy
#13
Peter Fischer, Anthony Faranesh, Thomas Pohl, Andreas Maier, Toby Rogers, Kanishka Ratnayaka, Robert Lederman, Joachim Hornegger
In X-ray fluoroscopy, static overlays are used to visualize soft tissue. We propose a system for cardiac and respiratory motion compensation of these overlays. It consists of a 3-D motion model created from real-time MR imaging. Multiple sagittal slices are acquired and retrospectively stacked to consistent 3-D volumes. Slice stacking considers cardiac information derived from the ECG and respiratory information extracted from the images. Additionally, temporal smoothness of the stacking is enhanced. Motion is estimated from the MR volumes using deformable 3-D/3-D registration...
July 4, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28680727/surgical-management-of-symptomatic-ossified-anterior-longitudinal-ligament-a-case-report
#14
Maddala Sundeep, Yoshitaka Hirano, Susumu Iketani, Akiyoshi Konno
BACKGROUND: Ossified anterior longitudinal ligament (OALL) of the cervical spine can cause dysphagia, dyspnoea, and dysphonia, although these symptoms are rare. CASE DESCRIPTION: A 71-year-old male presented with gradually progressive dysphagia secondary to OALL. He underwent fiber optic endoscopy and lateral video fluoroscopy. The OALL extended from C4 to C7 and contributed to significant compression of the pharynx as demonstrated on plain cervical radiography, magnetic resonance (MR) imaging, and computed tomography (CT)...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28649951/video-motion-analysis-in-live-coronary-angiography-differentiates-levels-of-experience-and-provides-a-novel-method-of-skill-assessment
#15
Alexander Eric Rolls, Celia Riga, Sybghat Rahim, Danail Stoyanov, Isabelle Van Herzeele, Ghada Mikhail, Mohamad Hamady, Nick Cheshire, Colin Bicknell
AIMS: Video-motion analysis (VMA) uses fluoroscopic sequences to derive on catheter and guide-wire movement, and is able to calculate 2D catheter-tip path-length (PL) on the basis of frame-by-frame pixel coordinates. The objective of this study was to validate VMA in coronary angiography as a method of skill assessment. METHODS AND RESULTS: 47 coronary interventions performed by 10 low- (<1000 cases; group A), 5 medium- (1000-4000; group B) and 6 high- (>4000; group C) experience- volume cardiologists were prospectively recorded and analysed using this software...
June 27, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28641969/determining-3d-kinematics-of-the-hip-using-video-fluoroscopy-guidelines-for-balancing-radiation-dose-and-registration-accuracy
#16
Fabio D'Isidoro, Patrik Eschle, Thomas Zumbrunn, Christian Sommer, Stephan Scheidegger, Stephen J Ferguson
BACKGROUND: Video fluoroscopy is a technique currently used to retrieve the in vivo three-dimensional kinematics of human joints during activities of daily living. Minimization of the radiation dose absorbed by the subject during the measurement is a priority and has not been thoroughly addressed so far. This issue is critical for the motion analysis of the hip joint, because of the proximity of the gonads. The aims of this study were to determine the x-ray voltage and the irradiation angle that minimize the effective dose and to achieve the best compromise between delivered dose and accuracy in motion retrieval...
May 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28606890/how-to-plan-an-overlap-free-projection-on-cta-or-fluoroscopy-to-facilitate-quantitative-analysis
#17
Justin Teng, Vincent Nijenhuis, Martin Swaans, Gerald Yong, Carl Schultz
AIMS: Assessment of para-valvular aortic regurgitation remains challenging. Quantitative video-densitometry is an effective technique however overlap of the aorta and left ventricle (LV) limits feasibility. We aimed to develop and validate a method to determine an 'Overlap Free Projection' (OFP). METHODS AND RESULTS: 65 computed tomography scans of patients referred for transcatheter aortic valve implantation were analysed using 3D reconstruction to evaluate the OFP...
June 13, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28580260/posterolateral-rotatory-instability-of-the-elbow-part-ii-supplementary-examination-and-dynamic-imaging-techniques
#18
Christopher L Camp, Jay Smith, Shawn W O'Driscoll
Currently, a number of examination and imaging techniques exist for diagnosing posterolateral rotatory instability of the elbow. Although the posterolateral rotatory drawer is the primary examination maneuver, other special tests include the lateral pivot-shift test, prone push-up test, chair push-up test, and tabletop push-up test. In addition, posterolateral rotatory instability can be evaluated using radiography, magnetic resonance imaging, dynamic fluoroscopy, or dynamic ultrasound. In this Technical Note, each of these tests is described in detail...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28495056/a-novel-minimally-invasive-near-infrared-thoracoscopic-localization-technique-of-small-pulmonary-nodules-a-phase-i-feasibility-trial
#19
Hideki Ujiie, Tatsuya Kato, Hsin-Pei Hu, Priya Patel, Hironobu Wada, Kosuke Fujino, Robert Weersink, Elsie Nguyen, Marcelo Cypel, Andrew Pierre, Marc de Perrot, Gail Darling, Thomas K Waddell, Shaf Keshavjee, Kazuhiro Yasufuku
OBJECTIVES: Localization and resection of nonvisible, nonpalpable pulmonary nodules during video-assisted thoracoscopic surgery are challenging. Our study was to determine the feasibility and safety of indocyanine green fluorescence localization and resection of small nodules using a near-infrared fluorescence thoracoscope. METHODS: Twenty patients with undiagnosed peripheral nodules smaller than 3 cm scheduled for computed tomography-guided microcoil placement followed by video-assisted thoracoscopic surgery wedge resection were enrolled...
August 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28437028/european-section-of-urotechnology-educational-video-on-fluoroscopic-guided-puncture-in-percutaneous-nephrolithotomy-all-techniques-step-by-step
#20
Iason Kyriazis, Evangelos Liatsikos, Odysseas Sopilidis, Panagiotis Kallidonis, Andreas Skolarikos
OBJECTIVE: To describe the most common fluoroscopic-guided access techniques during percutaneous nephrolithotomy (PCNL) in a step-by-step manner and to assist in the standardisation of their technique and terminology. METHODS: A high-quality animation video was created for each of the respective fluoroscopic techniques, focusing into the parallel projection of external surgical manoeuvres and their effect in the three-dimensional space of the kidney. RESULTS: Four predominant fluoroscopic-guided percutaneous access techniques are available, each with different advantages and limitations...
April 24, 2017: BJU International
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