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https://www.readbyqxmd.com/read/28929140/real-time-probing-of-granular-dynamics-with-magnetic-resonance
#1
Alexander Penn, Takuya Tsuji, David O Brunner, Christopher M Boyce, Klaas P Pruessmann, Christoph R Müller
Granular dynamics govern earthquakes, avalanches, and landslides and are of fundamental importance in a variety of industries ranging from energy to pharmaceuticals to agriculture. Nonetheless, our understanding of the underlying physics is poor because we lack spatially and temporally resolved experimental measurements of internal grain motion. We introduce a magnetic resonance imaging methodology that provides internal granular velocity measurements that are four orders of magnitude faster compared to previous work...
September 2017: Science Advances
https://www.readbyqxmd.com/read/28928045/the-electrocardiographic-triangular-qrs-st-t-waveform-pattern-in-patients-with-st-segment-elevation-myocardial-infarction-incidence-pathophysiology-and-clinical-implications
#2
Alberto Cipriani, Gianpiero D'Amico, Giulia Brunello, Martina Perazzolo Marra, Federico Migliore, Luisa Cacciavillani, Giuseppe Tarantini, Barbara Bauce, Sabino Iliceto, Domenico Corrado, Alessandro Zorzi
BACKGROUND: A specific ECG pattern of presentation of ST-segment elevation acute myocardial infarction (STEMI), characterized by "triangular QRS-ST-T waveform" (TW), has been associated with poor in-hospital prognosis but longitudinal data on its incidence and clinical impact are lacking. We prospectively evaluated the incidence and prognostic meaning of the TW pattern in a cohort of consecutive STEMI patients. METHODS: All STEMI patients who presented within 12h of symptoms onset and showed no complete bundle branch block or paced ventricular rhythm were included...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28918085/positive-effects-of-extracorporeal-shock-wave-therapy-on-spasticity-in-poststroke-patients-a-meta-analysis
#3
REVIEW
Peipei Guo, Fuqiang Gao, Tingting Zhao, Wei Sun, Bailiang Wang, Zirong Li
BACKGROUND: Spasticity is a common and serious complication following a stroke, and many clinical research have been conducted to evaluate the effect of extracorporeal shock wave therapy (ESWT) on muscle spasticity in poststroke patients. This meta-analysis aimed to evaluate the therapeutic effect on decreasing spasticity caused by a stroke immediately and 4 weeks after the application of shock wave therapy. METHODS: We searched PubMed, Embase, Web of Science, and Cochrane Library databases for relevant studies through November 2016 using the following item: (Hypertonia OR Spasticity) and (Shock Wave or ESWT) and (Stroke)...
September 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28916511/failure-to-treat-life-threatening-ventricular-tachyarrhythmias-in-contemporary-implantable-cardioverter-defibrillators-implications-for-strategic-programming
#4
Anna Margrethe Thøgersen, Jacob Moesgaard Larsen, Jens Brock Johansen, Moeen Abedin, Charles D Swerdlow
BACKGROUND: In clinical trials, manufacturer-specific, strategic programming of implantable cardioverter-defibrillators (ICDs), including faster detection rates, reduces unnecessary therapy but permits therapy for ventricular tachycardia/ventricular fibrillation (VF). Present consensus recommends a generic rate threshold between 185 and 200 beats per minute, which exceeds the rate tested in clinical trials for some manufacturers. In a case series, we sought to determine the relationship between programmed parameters and failure of modern ICDs to treat VF...
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28910825/comparison-of-continuous-wave-and-micropulse-modulation-in-retinal-laser-therapy
#5
Jenny Wang, Yi Quan, Roopa Dalal, Daniel Palanker
Purpose: Recent progress in retinal laser therapy has centered upon using thermal stress below damage threshold or selective destruction of targeted tissue layers as a stimulus for retinal repair. Temporal modulation, including micropulse, is thought to increase the selectivity of laser treatment, but has not been carefully analyzed. We measure and model the tissue response to continuous-wave (CW) and micropulse laser to evaluate the advantages and drawbacks of temporal modulation. Methods: Thresholds of ophthalmoscopic visibility, which indicates damage to photoreceptors, and fluorescein angiography (FA), indicating damage to retinal pigment epithelium (RPE), were measured with 577-nm laser in rabbits for duty cycles ranging from 3% to 100% (CW) and pulse envelopes of 20 and 200 ms...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28903379/extracorporeal-shock-wave-treatment-attenuated-left-ventricular-dysfunction-and-remodeling-in-mini-pig-with-cardiorenal-syndrome
#6
Jiunn-Jye Sheu, Hani E E Ali, Ben-Chung Cheng, Hsin-Ju Chiang, Pei-Hsun Sung, Kuan-Hung Chen, Chih-Chao Yang, Yen-Ta Chen, John Y Chiang, Pao-Yuan Lin, Sarah Chua, Han-Tan Chai, Sheng-Ying Chung, Cheuk-Kwan Sun, Hon-Kan Yip
This study tested the hypothesis that extracorporeal shock wave (ECSW) treatment can improve ischemia-induced left ventricular (LV) dysfunction in mini-pig with co-existing chronic kidney disease (CKD). LV ischemia in mini-pigs was induced by applying an ameroid constrictor over mid-left anterior descending artery (LAD), while model of CKD was established by right nephrectomy with partial ligation of left renal arterioles 2 weeks before LAD constriction. Thirty mini-pigs were randomly divided into group 1 (sham-control), group 2 (LV-ischemia), group 3 (LV-ischemia + CKD), Group 4 [LV-ischemia + ECSW (applied 1200 shots at 0...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28883672/comparison-of-different-analgesic-techniques-for-pain-relief-during-extracorporeal-shock-wave-lithotripsy-a-double-blind-randomized-clinical-trial
#7
Afsaneh Fouladi, Aria Soleimani
BACKGROUND: Most patients experience some degree of pain during extracorporeal shock waves lithotripsy (ESWL). AIM: The aim of this study was to evaluate the effect of target-controlled infusion (TCI) of remifentanil or sufentanil and patient-controlled analgesia (PCA) with sufentanil or morphine for pain relief during ESWL. MATERIALS AND METHODS: In a double blind, randomized clinical trial, a total of 60 patients who were scheduled for elective ESWL, randomly assigned into four groups (A, B, C and D)...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28877033/nonlinear-coherent-structures-in-granular-crystals
#8
C Chong, Mason A Porter, P G Kevrekidis, C Daraio
The study of granular crystals, which are nonlinear metamaterials that consist of closely packed arrays of particles that interact elastically, is a vibrant area of research that combines ideas from disciplines such as materials science, nonlinear dynamics, and condensed-matter physics. Granular crystals exploit geometrical nonlinearities in their constitutive microstructure to produce properties (such as tunability and energy localization) that are not conventional to engineering materials and linear devices...
September 6, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28871362/electrocardiographic-markers-of-appropriate-implantable-cardioverter-defibrillator-therapy-in-young-people-with-congenital-heart-diseases
#9
Dunia Bárbara Benítez Ramos, Michel Cabrera Ortega, Jesús Castro Hevia, Margarita Dorantes Sánchez, Ailema Amelia Alemán Fernández, Osmin Castañeda Chirino, Marlenis Cruz Cardentey, Frank Martínez López, Roylan Falcón Rodríguez
Implantable cardioverter-defibrillators (ICDs) are increasingly utilized in patients with congenital heart disease (CHD). Prediction of the occurrence of shocks is important if improved patient selection is desired. The electrocardiogram (ECG) has been the first-line tool predicting the risk of sudden death, but data in CHD patients are lacking. We aim to evaluate the predictive value of electrocardiographic markers of appropriate therapy of ICD in young people with CHD. We conducted a prospective, longitudinal study, in twenty-six CHD patients (mean age 24...
September 4, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28868045/primary-blast-induced-changes-in-akt-and-gsk3%C3%AE-phosphorylation-in-rat-hippocampus
#10
Yushan Wang, Thomas W Sawyer, Yiu Chung Tse, Changyang Fan, Grant Hennes, Julia Barnes, Tyson Josey, Tracy Weiss, Peggy Nelson, Tak Pan Wong
Traumatic brain injury (TBI) due to blast from improvised explosive devices has been a leading cause of morbidity and mortality in recent conflicts in Iraq and Afghanistan. However, the mechanisms of primary blast-induced TBI are not well understood. The Akt signal transduction pathway has been implicated in various brain pathologies including TBI. In the present study, the effects of simulated primary blast waves on the phosphorylation status of Akt and its downstream effector kinase, glycogen synthase kinase 3β (GSK3β), in rat hippocampus, were investigated...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28862043/study-of-the-safety-of-extracorporeal-cardiac-shock-wave-therapy-observation-of-the-ultrastructures-in-myocardial-cells-by-transmission-electron-microscopy
#11
Bing Liu, Yunhe Zhang, Na Jia, Ming Lan, Ling Du, Dachun Zhao, Qing He
Extracorporeal cardiac shock wave therapy (CSWT) has been used to treat patients with severe coronary heart disease and cardiac failure with good results; however, the safety of this treatment is still controversial. Its safety in clinical setting and on microstructures has been confirmed, but the influence of shock wave on the ultrastructures of myocardial cells is not clear. In this study, 12 Sprague-Dawley rats were randomly divided into control (NC) and CSWT therapy (NC+SW) groups. The heart rate, blood pressure, serum troponin I (TNI), and cardiac ultrasound were evaluated, and the myocardial inflammatory responses and fibrosis changes were compared...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28861662/extracellular-expression-in-aspergillus-niger-of-an-antibody-fused-to-leishmania-sp-antigens
#12
Denis Magaña-Ortíz, Francisco Fernández, Achim M Loske, Miguel A Gómez-Lim
Nucleoside hydrolase and sterol 24-c-methyltransferase, two antigenic proteins of Leishmania sp., were expressed in Aspergillus niger. Genetic transformation of conidia was achieved using underwater shock waves. scFv antibody addressed to DEC205, a receptor of dendritic cells, was fused to two proteins of Leishmania sp. Receptor 205 has a relevant role in the immune system in mammals; it can modulate T cell response to different antigens. Extracellular expression strategy of recombinant antibody was achieved using a fragment of native glucoamylase A (514 aa) as a carrier...
August 31, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28861302/factors-associated-with-postoperative-pain-after-retrograde-intrarenal-surgery-for-kidney-stones
#13
Ural Oğuz, Tolga Şahin, Çağrı Şenocak, Ekrem Özyuvalı, Ömer Faruk Bozkurt, Berkan Reşorlu, Ali Ünsal
OBJECTIVE: We aimed to investigate factors related to early postoperative pain after retrograde intrarenal surgery (RIRS). MATERIAL AND METHODS: A prospective data analysis of 250 patients who underwent RIRS due to kidney stones was performed. Postoperative pain was evaluated in all patients by using visual analogue scale (VAS). Patients with severe pain (VAS score ≥7) were separated and included in Group I (n=46). While patients without pain or with insignificant pain were included in Group II (n=204)...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28861294/retrograde-intrarenal-surgery-for-renal-stones-part-2
#14
REVIEW
Özcan Kılıç, Murat Akand, Ben Van Cleynenbreugel
Retrograde intrarenal surgery (RIRS) has become an effective and safe treatment modality in the management of urinary system stone disease. Recent developments and innovations in the flexible ureterorenoscope and auxiliary equipment have made this procedure easier and more effective with increased success rates. RIRS can be used as a primary treatment in patients with renal stones smaller than 2 cm, prior unsuccessful shock wave lithotripsy, infundibular stenosis, renoureteral malformation, skeletal-muscular deformity, bleeding diathesis and obese patients...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28858120/effect-of-extracorporeal-shock-wave-therapy-for-treating-patients-with-chronic-rotator-cuff-tendonitis
#15
RANDOMIZED CONTROLLED TRIAL
Wei Li, Shou-Xiang Zhang, Qi Yang, Bao-Lin Li, Qing-Gang Meng, Zheng-Gui Guo
BACKGROUND: This study aimed to determine the efficacy and safety of extracorporeal shock-wave therapy (ESWT) for treating patients with chronic rotator cuff tendonitis (CRCT). METHODS: In this study, 84 patients with CRCT were randomly divided into intervention and control groups in a ratio of 1:1. Patients in the intervention group received ESWT, whereas those in the control group received placebo. The primary outcome was measured by Numeric Rating Scale (NRS)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28851305/nephrolithiasis-and-osteomalacia-associated-with-adefovir-induced-fanconi-syndrome-in-a-patient-with-hepatitis-b
#16
Jueying Lin, Yufeng Zhuo, Dongdong Zhang
BACKGROUND: An increasing number of case reports suggest that acquired renal Fanconi syndrome may be associated with prolonged use of adefovir against hepatitis B virus. Renal Fanconi syndrome is an uncommon disease, and its complication with nephrolithiasis is quite rare. Herein, we report a rare coexistence of nephrolithiasis and acquired renal Fanconi syndrome in a chronic hepatitis B-positive patient with prolonged adefovir therapy. CASE PRESENTATION: The patient presented with osteomalacia and nephrolithiasis...
August 29, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28842103/treatment-of-plantar-fasciitis-with-radial-soundwave-early-is-better-than-after-6%C3%A2-months-a-pilot-study
#17
Amol Saxena, Brian K Hong, Andrew S Yun, Nicola Maffulli, Ludger Gerdesmeyer
Extracorporeal shock wave therapy/radial soundwave therapy has been predominantly used for chronic or recalcitrant plantar fasciitis with strong scientific evidence of reliable outcomes. Most of the studies included patients with plantar fasciitis with symptoms >6 months in duration. Only 2 known studies have investigated acute plantar fasciitis, which is <6 weeks in duration. They both found suboptimal results for the use of extracorporeal shock wave therapy. To the best of our knowledge, no studies have investigated radial soundwave therapy for the subacute stage or early stage of plantar fasciitis...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28840301/does-kinesiotaping-improve-pain-and-functionality-in-patients-with-newly-diagnosed-lateral-epicondylitis
#18
Leyla Eraslan, Deniz Yuce, Arzu Erbilici, Gul Baltaci
PURPOSE: This study aimed to compare the short-term effects of kinesiotaping and extracorporeal shock wave therapy (ESWT) along with physiotherapy on pain, functionality, and grip strength in patients with newly diagnosed lateral epicondylitis undergoing rehabilitation. METHODS: Forty-five voluntary patients (mean age 48 years) were randomly assigned to three groups. Patients in all groups received physiotherapy consisting of a cold pack and transcutaneous electrical nerve stimulation five times per week for a total of 15 sessions and a home exercise programme including stretching and eccentric strength exercises...
August 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28840294/prediction-of-successful-shock-wave-lithotripsy-with-ct-a-phantom-study-using-texture-analysis
#19
Manoj Mannil, Jochen von Spiczak, Thomas Hermanns, Hatem Alkadhi, Christian D Fankhauser
OBJECTIVE: To apply texture analysis (TA) in computed tomography (CT) of urinary stones and to correlate TA findings with the number of required shockwaves for successful shock wave lithotripsy (SWL). MATERIALS AND METHODS: CT was performed on thirty-four urinary stones in an in vitro setting. Urinary stones underwent SWL and the number of required shockwaves for disintegration was recorded. TA was performed after post-processing for pixel spacing and image normalization...
August 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28840104/t-wave-oversensing-from-postural-changes-a-rare-cause-of-inappropriate-shock-from-a-subcutaneous-defibrillator
#20
Muhammad R Afzal, Auroa Badin, Raul Weiss, Ralph Augostini, John D Hummel
No abstract text is available yet for this article.
August 2017: HeartRhythm Case Reports
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