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Electromagnetic therapy

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https://www.readbyqxmd.com/read/29451219/low-frequency-pulsed-electromagnetic-field-pretreated-bone-marrow-derived-mesenchymal-stem-cells-promote-the-regeneration-of-crush-injured-rat-mental-nerve
#1
NaRi Seo, Sung-Ho Lee, Kyung Won Ju, JaeMan Woo, BongJu Kim, SoungMin Kim, Jeong Won Jahng, Jong-Ho Lee
Bone marrow-derived mesenchymal stem cells (BMSCs) have been shown to promote the regeneration of injured peripheral nerves. Pulsed electromagnetic field (PEMF) reportedly promotes the proliferation and neuronal differentiation of BMSCs. Low-frequency PEMF can induce the neuronal differentiation of BMSCs in the absence of nerve growth factors. This study was designed to investigate the effects of low-frequency PEMF pretreatment on the proliferation and function of BMSCs and the effects of low-frequency PEMF pre-treated BMSCs on the regeneration of injured peripheral nerve using in vitro and in vivo experiments...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29447018/summary-of-numerical-analyses-for-therapeutic-uses-of-laser-activated-gold-nanoparticles
#2
Jakub Mesicek, Kamil Kuca
The optimal light dose, heat generation, consequent heat spread, and an accurate thermal damage model, are key components of effective laser therapies. Recent advances in nanotechnology offer numerous possibilities on how to increase the efficacy of hyperthermia for tumour treatments. Gold nanoparticles are a promising candidate towards the achievement of this goal owing to their properties for efficiently converting light to heat. In this review, we summarise the numerical tools that are available for theoretical studies of gold-nanoparticle-mediated photo-thermal therapy...
February 15, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29438554/microwave-diathermy-in-physiotherapy-introduction-and-evaluation-of-a-quality-control-procedure
#3
Constantinos Koutsojannis, Andreas Andrikopoulos, Adam Adamopoulos, Ioannis Seimenis
Microwave diathermies (MWDs) are electromagnetic (EM) radiation emitting systems that are used by physiotherapists for thermotherapy treatment. Although this form of therapy is widely available in most physiotherapy units worldwide, management of the equipment is not obligatory addressed either by clinical engineers or medical physicists. A novel quality control (QC) protocol for MWD equipment, examining mechanical, electrical and electronic condition, the power output and EM radiation distribution in the electrotherapy room, was used during a national QC survey...
February 9, 2018: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29428143/causes-and-prevention-of-inappropriate-implantable-cardioverter-defibrillator-shocks
#4
REVIEW
Nitin Kulkarni, Mark S Link
Use of implantable cardioverter-defibrillators as a primary prevention therapy has been shown to reduce mortality in patients after cardiac arrest and also with left ventricular systolic dysfunction. Yet, inappropriate shocks are variably reported and associated with a reduction in quality of life. Inappropriate shocks are the result of environmental causes leading to electromagnetic interference and inappropriate sensing of external noise, device-related causes from inappropriate sensing of physiologic or pathologic signals, and supraventricular arrhythmias...
March 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29419535/electromagnetic-interference-between-left-ventricular-assist-device-and-a-three-dimensional-mapping-system-overcome-by-hot-mapping
#5
Christian Blockhaus, Hans-Peter Waibler, Jan-Erik Gülker, Florian Meyer, Heinrich Klues, Alexander Bufe, Dong-In Shin
The number of patients with implanted left ventricular assist devices is constantly increasing. Numerous patients suffer from drug-resistant ventricular tachycardias. Only a few studies and reports about ablation therapy in this cohort of patients are available. Electromagnetic interferences between the left ventricular assist device and the three-dimensional mapping system which is used for ablation has been described as disabling the investigator to create a proper map of the left ventricle. We observed that this interference is interrupted by "hot mapping" meaning that one pretends an ablation with only 5 W, permitting the creation of a clear map in areas of interference...
February 6, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29400955/localized-surface-plasmon-resonance-in-semiconductor-nanocrystals
#6
Ankit Agrawal, Shin Hum Cho, Omid Zandi, Sandeep Ghosh, Robert W Johns, Delia J Milliron
Localized surface plasmon resonance (LSPR) in semiconductor nanocrystals (NCs) that results in resonant absorption, scattering, and near field enhancement around the NC can be tuned across a wide optical spectral range from visible to far-infrared by synthetically varying doping level, and post synthetically via chemical oxidation and reduction, photochemical control, and electrochemical control. In this review, we will discuss the fundamental electromagnetic dynamics governing light matter interaction in plasmonic semiconductor NCs and the realization of various distinctive physical properties made possible by the advancement of colloidal synthesis routes to such NCs...
February 5, 2018: Chemical Reviews
https://www.readbyqxmd.com/read/29399826/photodynamic-therapy-via-navigational-bronchoscopy-for-peripheral-lung-cancer-in-dogs
#7
Ali I Musani, Julia K Veir, Zheng Huang, Tim Lei, Steve Groshong, Deanna Worley
OBJECTIVE: In the setting of lung cancer, photodynamic therapy (PDT) is typically used to treat centrally located endobronchial tumors. The development of navigational bronchoscopy has opened the potential for using PDT to treat peripheral lung tumors. However, there is limited information about the feasibility of this approach for treating peripheral lung cancers, and about its effects on surrounding healthy lung tissue. We studied the use of PDT delivered by electromagnetic navigational bronchoscopy to treat peripheral lung cancer in dogs...
February 5, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29389805/radiotherapy-and-risk-of-implantable-cardioverter-defibrillator-malfunctions-experimental-data-from-direct-exposure-at-increasing-doses
#8
Massimo Zecchin, Jessica Artico, Gaetano Morea, Mara Severgnini, Elisabetta Bianco, Antonio De Luca, Anna Zorzin Fantasia, Luca Salvatore, Vittorino Milan, Matteo Lucarelli, Roberta Dissegna, Antonio Cannatà, Gianfranco Sinagra
AIM: During radiotherapy, in patients with implantable cardioverter-defibrillators (ICDs) malfunctions are considered more likely if doses more than 2 Gy reach the ICD site; however, most malfunctions occur with high-energy (>10 MV) radiations, and the risk is less defined using 6-MV linear accelerators. The purpose of the study is to experimentally evaluate the occurrence of malfunctions in ICDs radiated with a 6-MV linear accelerator at increasing photon doses. METHODS: Thirty-two ICDs from all manufacturers (31 explanted and one demo) were evaluated; all devices with a sufficient battery charge underwent multiple radiations with a 6-MV photon beam reaching a cumulative dose at ICD site of 0...
January 30, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29372565/non-pharmacological-interventions-for-treating-chronic-prostatitis-chronic-pelvic-pain-syndrome
#9
REVIEW
Juan Va Franco, Tarek Turk, Jae Hung Jung, Yu-Tian Xiao, Stanislav Iakhno, Virginia Garrote, Valeria Vietto
BACKGROUND: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a common disorder in which the two main clinical features are pelvic pain and lower urinary tract symptoms. There are currently many approaches for its management, using both pharmacological and non-pharmacological interventions. The National Institute of Health - Chronic Prostatitis Symptom Index (NIH-CPSI) score is a validated measure commonly used to measure CP/CPPS symptoms. OBJECTIVES: To assess the effects of non-pharmacological therapies for chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS)...
January 26, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29304991/a-multi-institutional-phase-2-trial-of-prostate-stereotactic-body-radiation-therapy-sbrt-using-continuous-real-time-evaluation-of-prostate-motion-with-patient-reported-quality-of-life
#10
William C Jackson, Robert T Dess, Dale W Litzenberg, Pin Li, Matthew Schipper, Seth A Rosenthal, Garrick C Chang, Eric M Horwitz, Robert A Price, Jeff M Michalski, Hiram A Gay, John T Wei, Mary Feng, Felix Y Feng, Howard M Sandler, Robert E Wallace, Daniel E Spratt, Daniel A Hamstra
PURPOSE: The use of stereotactic body radiation therapy (SBRT) for prostate cancer has been reported predominantly from single institutional studies, although concerns for broader adoption exist. METHODS AND MATERIALS: From 2011 through 2013, 66 men were accrued to a phase 2 trial at 5 centers. SBRT consisted of 5 fractions of 7.4 Gy to a total dose of 37 Gy using conventional linear accelerators. Electromagnetic transponders were used for motion management. Health-related quality of life (HRQOL) was evaluated via the Expanded Prostate Cancer Index Composite 26 questionnaire...
January 2018: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29291432/joule-heating-and-zeta-potential-effects-on-peristaltic-blood-flow-through-porous-micro-vessels-altered-by-electrohydrodynamic
#11
N K Ranjit, G C Shit, D Tripathi
In most of the medical therapies, electromagnetic field plays important role to modulate the blood flow and to reduce the pain of human body. With this fact, this paper presents a mathematical model to study the peristaltic blood flow through porous microvessels in presence of electrohydrodynamics. The effects of Joule heating and different zeta potential are also considered. Darcy law is employed for porous medium. The mathematical analysis is carried out in the form of electroosmosis, flow analysis and heat transfer analysis...
December 29, 2017: Microvascular Research
https://www.readbyqxmd.com/read/29259395/cervical-spine-mechanism-for-reproduction-of-the-biomechanical-behaviours-of-the-human-neck-during-rotation-traction-manipulation
#12
Yuancan Huang, Shuai Li, Minshan Feng, Liguo Zhu
Rotation-traction (RT) manipulation is a commonly used physical therapy procedure in TCM (traditional Chinese medicine) for cervical spondylosis. This procedure temporarily separates the C3 and C4 cervical vertebrae from each other when a physician applies a jerky action while the neck is voluntarily turned by the patient to a specific position as instructed by the physician, where the cervical vertebrae are twisted and locked. However, a high rate of cervical injury occurs due to inexperienced physician interns who lack sufficient training...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/29250547/multilevel-thresholding-method-based-on-electromagnetism-for-accurate-brain-mri-segmentation-to-detect-white-matter-gray-matter-and-csf
#13
G Sandhya, Giri Babu Kande, T Satya Savithri
This work explains an advanced and accurate brain MRI segmentation method. MR brain image segmentation is to know the anatomical structure, to identify the abnormalities, and to detect various tissues which help in treatment planning prior to radiation therapy. This proposed technique is a Multilevel Thresholding (MT) method based on the phenomenon of Electromagnetism and it segments the image into three tissues such as White Matter (WM), Gray Matter (GM), and CSF. The approach incorporates skull stripping and filtering using anisotropic diffusion filter in the preprocessing stage...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29234817/neural-plasticity-and-its-initiating-conditions-in-tinnitus
#14
REVIEW
L E Roberts
BACKGROUND AND OBJECTIVE: Deafferentation caused by cochlear pathology (which can be hidden from the audiogram) activates forms of neural plasticity in auditory pathways, generating tinnitus and its associated conditions including hyperacusis. This article discusses tinnitus mechanisms and suggests how these mechanisms may relate to those involved in normal auditory information processing. MATERIALS AND METHODS: Research findings from animal models of tinnitus and from electromagnetic imaging of tinnitus patients are reviewed which pertain to the role of deafferentation and neural plasticity in tinnitus and hyperacusis...
December 12, 2017: HNO
https://www.readbyqxmd.com/read/29234304/hypothesis-on-the-role-of-cryptochromes-in-inflammation-and-subarachnoid-hemorrhage-outcome
#15
Adriano Barreto Nogueira, Ariel Barreto Nogueira, José Carlos Esteves Veiga, Manoel Jacobsen Teixeira
We have recently found that the temperature variability (TV) in the day-night cycle may predict the mean intracranial pressure in the following 24 h (ICP24) in subarachnoid hemorrhage (SAH) patients under multimodality monitoring, sedation, and hypothermia (<35°C). Specifically, we found that ICP24 = 6 (4 - TV) mmHg. TV is the ratio between the coefficient of variation of temperature during the nocturnal and the preceding diurnal periods. This result suggests that the circadian clock reflects brain plasticity mechanisms and its malfunctioning leads to deterioration of the neurologic status...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29225838/multiple-inappropriate-implantable-cardiac-defibrillator-therapies-in-rapid-succession
#16
Jeffrey A Marbach, Colin Yeo, Martin S Green, Girish M Nair
Inappropriate implantable cardiac defibrillator (ICD) shocks are associated with significant morbidity and have the potential to trigger ventricular arrhythmias, cardiac decompensation, and death. We present a case of multiple inappropriate ICD therapies in rapid succession due electromagnetic interference from a Dr-Ho's transcutaneous electric nerve stimulator machine, and subsequently from a faulty electrical outlet.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29215846/-possibilities-of-correction-rheological-blood-svoytv-at-chipped-and-cut-wounds-of-the-breast
#17
V V Masljakov, O A Suhanova, V G Barsukov, K G Kurkin, S A Suhanov
The purpose: research objective: to study influence of electromagnetic oscillations of millimetric range on rheological properties of blood at patients with chipped and cut wounds of a breast for the purpose of their correction. Methods. For the solution of a research objective we have carried out studying of changes of rheological properties of blood at the 22nd patient with the getting chipped and cut wounds of a breast without internal injury during the next postoperative period. All patient has executed primary surgical processing and drainage of a pleural cavity...
April 2017: Patologicheskaia Fiziologiia i èksperimental'naia Terapiia
https://www.readbyqxmd.com/read/29189996/zinc-sulphate-mediates-the-stimulation-of-cell-proliferation-of-rat-adipose-tissue-derived-mesenchymal-stem-cells-under-high-intensity-of-emf-exposure
#18
Ezzatollah Fathi, Raheleh Farahzadi
Unlike the role of mesenchymal stem cells (MSCs) in regenerative medicine, their application in cell therapy can be complicated by factors such as a reduction in the proliferation potential, senescent tendency of MSCs to expand, and an age-dependent decline in their number and functions. It was shown that there is an association between exposure to electromagnetic fields (EMFs) and response to stress, cell proliferation, aging, and cell death. Furthermore, the zinc ion, as an essential trace element, was reported to be involved in the regulation of the growth and cell proliferation...
November 30, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29184281/high-intensity-laser-therapy-versus-pulsed-electromagnetic-field-in-the-treatment-of-primary-dysmenorrhea
#19
Ali Abd El-Monsif Thabet, Ahmed Mohamed Elsodany, Kadrya H Battecha, Mansour Abdullah Alshehri, Bassem Refaat
[Purpose] To determine the efficacy of high intensity laser therapy (HILT) versus pulsed electromagnetic field (PEMF) in the treatment of primary dysmenorrhea. [Subjects and Methods] This was a randomized clinical trial that included 52 girls diagnosed with primary dysmenorrhea and who were assigned randomly into two groups of equal numbers. The treatment was three sessions every cycle for three consecutive cycles where group (A) included those participants treated with HILT 15 min/session and group (B) those who were treated with PEMF 30 min/session...
October 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29174271/effects-of-pulsed-electromagnetic-field-therapy-at-different-frequencies-and-durations-on-rotator-cuff-tendon-to-bone-healing-in-a-rat-model
#20
Julianne Huegel, Daniel S Choi, Courtney A Nuss, Mary C C Minnig, Jennica J Tucker, Andrew F Kuntz, Erik I Waldorff, Nianli Zhang, James T Ryaby, Louis J Soslowsky
BACKGROUND: Rotator cuff tears affect millions of individuals each year, often requiring surgical intervention. However, repair failure remains common. We have previously shown that pulsed electromagnetic field (PEMF) therapy improved tendon-to-bone healing in a rat rotator cuff model. The purpose of this study was to determine the influence of both PEMF frequency and exposure time on rotator cuff healing. METHODS: Two hundred ten Sprague-Dawley rats underwent acute bilateral supraspinatus injury and repair followed by either Physio-Stim PEMF or high-frequency PEMF therapy for 1, 3, or 6 hours daily...
November 22, 2017: Journal of Shoulder and Elbow Surgery
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