keyword
MENU ▼
Read by QxMD icon Read
search

Clinical electrophysiology

keyword
https://www.readbyqxmd.com/read/27903347/-clinical-genetic-and-pathological-features-of-neuronal-ceroid-lipofuscinosis-in-5-chinese-patients
#1
S C Ren, B Q Gao, Y J Wang, X J Wu, Z X Tian, Y L Sun
Objective: To report the clinical, genetic and ultrastructural pathological features of neuronal ceroid lipofuscinosis (NCLs) in 5 Chinese patients. Methods: A total of 5 patients with NCLs were collected from 2013 to 2015 diagnosed by the department of pediatrics of Beijing Tian Tan Hospital. Their clinical, electrophysiological and neuroimaging data of the patients were reviewed.A total of 9 underlying genes of NCLs were tested in 4 cases and their parents.Ultrastructural pathology by skin biopsy was performed in 3 cases respectively...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27903017/a-single-center-prospective-observational-study-of-ultrasonography-for-6-months-after-surgical-decompression-of-the-median-nerve-at-the-carpal-tunnel
#2
Suleyman Tas, Frank Staub, Thomas Dombert, Gerhard Marquardt, Christian Senft, Volker Seifert, Stephan Duetzmann
Objective To determine the natural history of the morphology of the median nerve after carpal tunnel decompression. Methods Between October and December 2014, patients with suspected carpal tunnel were prospectively enrolled and underwent pre- and postoperative (3 and 6 months) high-definition ultrasonography, electrophysiology, and clinical testing. Results A total of 81 patients were enrolled in the study; 75 (93%) could be reached for the 6-month follow-up, and 100% were clinically better at the 6-month follow-up...
November 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27900409/perspectives-and-challenges-of-antioxidant-therapy-for-atrial-fibrillation
#3
REVIEW
Iveta Gasparova, Peter Kubatka, Radka Opatrilova, Martin Caprnda, Slavomira Filipova, Luis Rodrigo, Leone Malan, Ioana Mozos, Miroslava Rabajdova, Vladimir Nosal, Nazarii Kobyliak, Vanda Valentova, Daniel Petrovic, Mariusz Adamek, Peter Kruzliak
Atrial fibrillation (AF) is the most common sustained arrhythmia associated with significant morbidity and mortality. The mechanisms underlying the pathogenesis of AF are poorly understood, although electrophysiological remodeling has been described as an important initiating step. There is growing evidence that oxidative stress is involved in the pathogenesis of AF. Many known triggers of oxidative stress, such as age, diabetes, smoking, and inflammation, are linked with an increased risk of arrhythmia. Numerous preclinical studies and clinical trials reported the importance of antioxidant therapy in the prevention of AF, using vitamins C and E, polyunsaturated fatty acids, statins, or nitric oxide donors...
November 29, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27899826/an-elective-course-in-cardiovascular-electrophysiology-for-pharmacy-learners
#4
Diptiman D Bose
Objective. To implement an integrated, comprehensive, and learner-centered elective course focused at exposing learners to the interpretation of electrocardiograms and highlighting the mechanisms underlining the abnormal electrophysiological events. Design. Learners were presented with foundational information on the mechanisms underlying electrophysiological changes associated with the development of arrhythmias. They then discussed the interpretation of electrocardiogram (ECG) recordings and diagnosis of cardiovascular events...
October 25, 2016: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/27898981/macular-features-in-retinitis-pigmentosa-correlations-among-ganglion-cell-complex-thickness-capillary-density-and-macular-function
#5
Lisa Toto, Enrico Borrelli, Rodolfo Mastropasqua, Alfonso Senatore, Luca Di Antonio, Marta Di Nicola, Paolo Carpineto, Leonardo Mastropasqua
Purpose: To investigate correlations among macular ganglion cell complex (GCC) layer thickness, macular capillary density, and macular function in patients affected by retinitis pigmentosa (RP). Methods: Fourteen patients (28 eyes) with previous diagnosis of RP were enrolled. The diagnosis of these conditions was made based on both clinical features and electrophysiological examination. All patients underwent a complete ophthalmologic examination, including optical coherence tomography angiography (OCTA) and multifocal electroretinogram (mfERG)...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27894792/pyruvate-dehydrogenase-e1%C3%AE-deficiency-presenting-as-recurrent-acute-proximal-muscle-weakness-of-upper-and-lower-extremities-in-an-8-year-old-boy
#6
Bülent Kara, Hülya Maraş Genç, Emek Uyur-Yalçın, Ayfer Sakarya-Güneş, Uğur Topçu, Serap Mülayim, Serdar Ceylaner
The mitochondrial pyruvate dehydrogenase enzyme complex (PDHC) plays an important role in aerobic energy metabolism and acid-base equilibrium. PDHC contains of 5 enzymes, 3 catalytic (E1, E2, E3) and 2 regulatory, as well as 3 cofactors and an additional protein (E3-binding protein) encoded by nuclear genes. The clinical presentation of PDHC deficiency ranges from fatal neonatal lactic acidosis to chronic neurologic dysfunction without lactic acidosis. Paroxysmal neurologic problems such as intermittent ataxia, episodic weakness, exercise-induced dystonia and recurrent demyelination may also be seen although they are rare...
November 9, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27894238/anatomical-approach-to-clinical-problems-of-popliteal-fossa
#7
Gautam Dagur, Jason Gandhi, Noel Smith, Sardar Ali Khan
BACKGROUND: Popliteal fossa, also known as the popliteal space, is located behind the knee joint. This region can develop many clinical complications in the vascular, nervous, lymphatics, adipose, as well as swelling and masses. OBJECTIVE: The objective of this review article is to give a detailed understanding of the popliteal fossa and the clinical pathology that may present itself. METHODS: MEDLINE® searches were conducted of literature published since 1950s for "popliteal fossa," "diseases," "anatomy," "arterial," "venous," "nerves," "entrapment syndrome," "aneurysms," "cysts," "lymphatics," "solid masses," "tumors," "inflammatory lesions," and "swellings...
November 27, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27888765/a-clinical-study-on-the-electrophysiological-characteristics-of-patients-without-recurrence-after-ablation-of-persistent-atrial-fibrillation
#8
Shao-Hui Wu, Mu Qin, Wei-Feng Jiang, Yuan-Long Wang, Kai Xu, Dao-Liang Zhang, Xiao-Dong Zhang, Xu Liu
BACKGROUND: The electrophysiological characteristics of patients without recurrence after ablation of persistent atrial fibrillation (AF) have not been systematically determined. This study compared the electrophysiological characteristics in patients with and without recurrence of AF after persistent AF ablation. METHODS: Forty-five patients without recurrence of AF after persistent AF ablation were enrolled to assess electrophysiological characteristics including pulmonary vein (PV) reconnection, the mitral isthmus (MI) line and the roof line reconduction...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27886889/update-on-ocular-myasthenia-gravis
#9
REVIEW
Stacy V Smith, Andrew G Lee
Ocular myasthenia gravis (OMG) is a localized form of myasthenia gravis in which autoantibodies directed against acetylcholine receptors block or destroy these receptors at the postsynaptic neuromuscular junction. The hallmark of OMG is a history of painless weakness or fatigability of the extraocular muscles and ptosis with normal pupillary function and visual acuity. Clinical, laboratory, electrophysiologic, and pharmacologic tests are available for diagnosis. Treatment can begin with symptom management; there is no cure...
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27885829/autoclave-sterilization-of-pedot-pss-electrophysiology-devices
#10
Ilke Uguz, Mehran Ganji, Adel Hama, Atsunori Tanaka, Sahika Inal, Ahmed Youssef, Roisin M Owens, Pascale P Quilichini, Antoine Ghestem, Christophe Bernard, Shadi A Dayeh, George G Malliaras
Autoclaving, the most widely available sterilization method, is applied to poly(3,4-ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS) electrophysiology devices. The process does not harm morphology or electrical properties, while it effectively kills E. coli intentionally cultured on the devices. This finding paves the way to widespread introduction of PEDOT:PSS electrophysiology devices to the clinic.
November 25, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27882734/novel-mutations-in-sh3tc2-in-a-young-japanese-girl-with-charcot-marie-tooth-disease-type-4c
#11
Kazushi Ichikawa, Keita Numasawa, Saoko Takeshita, Akihiro Hashiguchi, Hiroshi Takashima
Charcot-Marie-Tooth disease type 4C (CMT4C) is an autosomal recessive demyelinating form of CMT characterized clinically by early onset and severe spinal deformities, and is caused by mutations in SH3TC2. We describe the case of a 10-year-old Japanese girl diagnosed with CMT4C. The patient developed progressive foot deformities such as marked pes cavus and ankle contracture, with mild muscle weakness in both legs, and generalized areflexia. On electrophysiological studies, motor nerve conduction velocity ranged from 22...
November 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27879370/validation-of-mri-determination-on-pet-measurements-in-ischemic-stroke
#12
Wolf-Dieter Heiss, Olivier Zaro Weber
The concept of the ischemic penumbra was formulated based on animal experiments showing functional impairment and electrophysiological disturbances with decreasing flow to the brain below defined values (the threshold for function) and irreversible tissue damage with blood supply further decreased (the threshold for infarction). The perfusion range between these thresholds was termed "penumbra", and restitution of flow above the functional threshold was able to reverse the deficits without permanent damage...
November 22, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27878364/-av-reentrant-tachycardia-and-wolff-parkinson-white-syndrome-diagnosis-and-treatment
#13
Frederik Voss, Lars Eckardt, Sonia Busch, Heidi L Estner, Daniel Steven, Philipp Sommer, Christian von Bary, Hans-Ruprecht Neuberger
The AV-reentrant tachycardia (AVRT) is a supraventricular tachycardia with an incidence of 1-3/1000. The pathophysiological basis is an accessory atrioventricular pathway (AP). Patients with AVRT typically present with palpitations, an on-off characteristic, anxiety, dyspnea, and polyuria. This type of tachycardia may often be terminated by vagal maneuvers. Although the clinical presentation of AVRT is quite similar to AV-nodal reentrant tachycardias, the correct diagnosis is often facilitated by analyzing a standard 12-lead ECG at normal heart rate showing ventricular preexcitation...
November 22, 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27876789/allostasis-in-health-and-food-addiction
#14
Dirk De Ridder, Patrick Manning, Sook Ling Leong, Samantha Ross, Sven Vanneste
Homeostasis is the basis of modern medicine and allostasis, a further elaboration of homeostasis, has been defined as stability through change, which was later modified to predictive reference resetting. It has been suggested that pleasure is related to salience (behavioral relevance), and withdrawal has been linked to allostasis in addictive types. The question arises how the clinical and neural signatures of pleasure, salience, allostasis and withdrawal relate, both in a non-addicted and addicted state. Resting state EEGs were performed in 66 people, involving a food-addicted obese group, a non-food addicted obese group and a lean control group...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27876696/stroke-prevention-strategies-in-patients-with-atrial-fibrillation-and-heart-valve-abnormalities-perceptions-of-valvular-atrial-fibrillation-results-of-the-european-heart-rhythm-association-survey
#15
Tatjana S Potpara, Gregory Y H Lip, Torben B Larsen, Antonio Madrid, Dan Dobreanu, Ewa Jędrzejczyk-Patej, Nikolaos Dagres
The purpose of this European Heart Rhythm Association (EHRA) Survey was to assess the perceptions of 'valvular' atrial fibrillation (AF) and management of AF patients with various heart valve abnormalities in daily clinical practice in European electrophysiology (EP) centres. Questionnaire survey was sent via the Internet to the EHRA-EP Research Network Centres. Of the 52 responding centres, 42 (80.8%) were university hospitals. Choosing the most comprehensive definition of valvular AF, a total of 49 centres (94...
October 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27875737/experimental-evidence-for-a-severe-proarrhythmic-potential-of-levosimendan
#16
Gerrit Frommeyer, Anja Kohnke, Christian Ellermann, Dirk G Dechering, Simon Kochhäuser, Christian Pott, Michael Fehr, Lars Eckardt
BACKGROUND: The calcium sensitizer levosimendan is established for therapy of acutely decompensated congestive heart failure. Clinical experience suggests a possible proarrhythmic potential. The aim of the present study was to assess possible proarrhythmic effects and underlying electrophysiological mechanisms. METHODS AND RESULTS: Ten rabbit hearts were isolated and Langendorff-perfused. Thereafter, levosimendan was infused in 3 concentrations (0.5, 1, and 2μM)...
November 14, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27875632/variable-phenotypic-expression-and-onset-in-myh14-distal-hmn-phenotype-in-a-large-multigenerational-north-american-family
#17
Stanley Iyadurai, W David Arnold, John T Kissel, Corey Ruhno, Vicki L McGovern, Pamela J Snyder, Thomas W Prior, Jennifer Roggenbuck, Arthur H Burghes, Stephen J Kolb
INTRODUCTION: Distal hereditary motor neuropathy (dHMN) causes distal-predominant weakness without prominent sensory loss. Myosin heavy chain disorders most commonly result in distal myopathy and cardiomyopathy with or without hearing loss, but a complex phenotype with dHMN, myopathy, hoarseness, and hearing loss was reported in a Korean family with a c.2822G>T mutation in MYH14. OBJECTIVE: To report phenotypic features in a North American family with the c.2822G>T in MYH14...
November 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27871843/considerations-when-using-next-generation-sequencing-for-genetic-diagnosis-of-long-qt-syndrome-in-the-clinical-testing-laboratory
#18
Hyojin Chae, Jiyeon Kim, Gun Dong Lee, Woori Jang, Joonhong Park, Dong Wook Jekarl, Yong Seog Oh, Myungshin Kim, Yonggoo Kim
BACKGROUND: Congenital long-QT syndrome (LQTS) is a potentially lethal cardiac electrophysiologic disorder characterized by QT interval prolongation and T-wave abnormalities. At least 13 LQTS-associated genes have been reported, but the high cost and low throughput of conventional Sanger sequencing has hampered the multi-gene-based LQTS diagnosis in clinical laboratories. METHODS: We developed an NGS (next-generation sequencing)-based targeted gene panel for 13 LQTS genes using the Ion PGM platform, and a cohort of 36 LQTS patients were studied for characterization of analytical performance specifications...
November 18, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27870802/intravitreal-infliximab-in-refractory-uveitis-in-behcet-s-disease-a-safety-and-efficacy-clinical-study
#19
Mostafa M E Hamza, Tamer A Macky, Mohamed Karim Sidky, Gaafar Ragab, Mahmoud M Soliman
PURPOSE: To assess the safety and efficacy of intravitreal infliximab (1 mg/0.05 mL) in patients with refractory posterior uveitis in Behcet's disease. METHODS: Twenty patients were included in this study. Best corrected visual acuity (BCVA), vitreous haze (graded 0-4), vasculitis, retinitis, and papillopathy (presence or absence) were assessed at baseline, Day 1 and Week 2, 4, 6, 8, 12, and 18. Optical coherence tomography (OCT) central foveal thickness, fluorescein angiography, and flash electroretinogram were done at baseline and 4, 12, and 18 weeks...
December 2016: Retina
https://www.readbyqxmd.com/read/27867861/intraoperative-neural-monitoring-in-thyroid-surgery-lessons-learned-from-animal-studies
#20
REVIEW
Che-Wei Wu, Gregory W Randolph, I-Cheng Lu, Pi-Ying Chang, Yi-Ting Chen, Pao-Chu Hun, Yi-Chu Lin, Gianlorenzo Dionigi, Feng-Yu Chiang
Recurrent laryngeal nerve (RLN) injury remains a significant morbidity associated with thyroid and parathyroid surgery. In the past decade, surgeons have increasingly used intraoperative neural monitoring (IONM) as an adjunct technique for localizing and identifying the RLN, detecting RLN injury, and predicting the outcome of vocal cord function. In recent years, many animal studies have investigated common pitfalls and new applications of IONM. For example, the use of IONM technology in animal models has proven valuable in studies of the electrophysiology of RLN injury...
October 2016: Gland Surgery
keyword
keyword
108729
1
2
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"