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https://www.readbyqxmd.com/read/29722861/early-and-long-term-outcomes-after-manual-and-remote-magnetic-navigation-guided-catheter-ablation-for-ventricular-tachycardia
#1
Pierre Qian, Kasun De Silva, Saurabh Kumar, Fazlur Nadri, Rahul Samanta, Abhishek Bhaskaran, David Ross, Gopal Sivagangabalan, Mark Cooper, Eddy Kizana, Lloyd Davis, Alan Robert Denniss, Aravinda Thiagalingam, Stuart Thomas, Pramesh Kovoor
Aims: Remote magnetic navigation (RMN) is a safe and effective means of performing ventricular tachycardia (VT) ablation. It may have advantages over manual catheter ablation due to ease of manoeuvrability and catheter stability. We sought to compare the safety and efficacy of RMN vs. manual VT ablation. Methods and results: Retrospective study of procedural outcomes of 139 consecutive VT ablation procedures (69 RMN, 70 manual ablation) in 113 patients between 2009 and 2015 was performed...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29722858/catheter-ablation-of-incisional-atrial-tachycardia-using-remote-magnetic-navigation-in-patients-after-heart-surgery-comparison-between-acquired-and-congenital-heart-disease
#2
Xiao-Yu Liu, Peter Karl Jacobsen, Steen Pehrson, Xu Chen
Aims: The objectives of this study were to assess the acute and long-term outcomes of catheter ablation in incisional atrial tachycardia (IAT) using remote magnetic navigation (RMN) in patients after heart surgery. Methods and results: A total of 46 patients with IAT after heart surgery who underwent catheter ablation using RMN were included. Of these patients, 22 patients had acquired heart disease (AHD) and the remaining 24 patients had various types of congenital heart disease (CHD)...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29722856/long-term-clinical-outcomes-of-magnetically-navigated-rotor-ablation-as-an-adjunct-to-conventional-pulmonary-vein-isolation
#3
Gunjan Shukla, John Zimmerman, Zoya Shir, Roshan Shah, Edmund Hasanaj
Aims: The objective of this study is to evaluate the outcomes of magnetically guided ablation of atrial fibrillation (AF) rotors in conjunction with magnetically guided pulmonary vein isolation (PVI) in a large consecutive series of patients. Methods and results: A total of 110 consecutive patients with drug-refractory AF underwent rotor ablation followed by conventional PVI and ablation of other spontaneous arrhythmias, all of which were performed with remote magnetic navigation (RMN)...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29722855/clinical-research-remote-magnetic-navigation-vs-manually-controlled-catheter-ablation-of-right-ventricular-outflow-tract-arrhythmias-a-retrospective-study
#4
Ayelet Shauer, Lennart J De Vries, Ferdi Akca, Jorge Palazzolo, Mohammed Shurrab, Ilan Lashevsky, Irving Tiong, Sheldon M Singh, David Newman, Tamas Szili-Torok, Eugene Crystal
Aims: Remote magnetic navigation (RMN) is an alternative to manual catheter control (MCC) radiofrequency ablation of right ventricular outflow tract (RVOT) arrhythmias. The data to support RMN approach is limited. We aimed to investigate the clinical and procedural outcomes in a cohort of patients undergoing RVOT premature ventricular complex/ventricular tachycardia (PVCs/VT) ablation procedures using RMN vs. MCC. Methods and results: Data was collected from two centres...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29722854/comparison-of-robotic-magnetic-navigation-guided-and-manual-catheter-ablation-of-ventricular-arrhythmias-arising-from-the-papillary-muscles
#5
Guillaume Bassil, Christopher F Liu, Steven M Markowitz, George Thomas, James E Ip, Constancia Macatangay, Theodore Maglione, Layth Saleh, Bruce B Lerman, Jim W Cheung
Aims: Due to the complex anatomy of the left ventricular (LV) and right ventricular (RV) papillary muscles (PMs), PM ventricular arrhythmias (VAs) can be challenging to target with ablation. We sought to compare the outcomes of robotic magnetic navigation-guided (RMN) ablation and manual ablation of VAs arising from the LV and RV PMs. Methods and results: We evaluated 35 consecutive patients (mean age 65 ± 12 years, 69% male) who underwent catheter ablation of 38 VAs originating from the LV and RV PMs as confirmed by intracardiac echocardiography...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29722530/high-pressure-synthesis-structures-and-properties-of-trivalent-a-site-ordered-quadruple-perovskites-rmn-7-o-12-r-sm-eu-gd-and-tb
#6
Lei Zhang, Noriki Terada, Roger D Johnson, Dmitry D Khalyavin, Pascal Manuel, Yoshio Katsuya, Masahiko Tanaka, Yoshitaka Matsushita, Kazunari Yamaura, Alexei A Belik
A-site-ordered quadruple perovskites RMn7 O12 with R = Sm, Eu, Gd, and Tb were synthesized at high pressure and high temperature (6 GPa and ∼1570 K), and their structural, magnetic, and dielectric properties are reported. They crystallize in space group I2/ m at room temperature. All four compounds exhibit a high-temperature phase transition to the cubic Im3̅ structure at ∼664 K (Sm), 663 K (Eu), 657 K (Gd), and 630 K (Tb). They all show one magnetic transition at TN1 ≈ 82-87 K at zero magnetic field, but additional magnetic transitions below TN2 ≈ 12 K were observed in SmMn7 O12 and EuMn7 O12 at high magnetic fields...
May 3, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29580418/structure-of-water-in-hybrid-cellulose-acetate-silica-ultrafiltration-membranes-and-permeation-properties
#7
Gonçalo Mendes, Mónica Faria, Alexandra Carvalho, M Clara Gonçalves, Maria Norberta de Pinho
Hybrid cellulose acetate (CA) silica (SiO2 ) (CA/SiO2 ) membranes were synthesized by promoting the in situ condensation between silanols from the SiO2 precursor and the COH or acetate groups from the CA polymer. For all the CA/SiO2 membranes, the ATR-FTIR peak assigned to (SiOC) proves the hybrid condensation reaction and confirms the synthesis of monophasic hybrid membranes. ATR-FTIR shows the presence of uncondensed highly reactive SiOH species, in membranes with silica contents higher than 20 mol%. Together with RMN studies, results show molecular water strongly hydrogen-bonded with SiOH groups, yielding a drastic decrease in the membrane hydraulic permeability, from 57 to 10 kg/h/m2 /bar...
June 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29524590/evaluation-validation-and-refinement-of-noninvasive-diagnostic-biomarkers-for-endometriosis-endomarker-a-protocol-to-phenotype-bio-specimens-for-discovery-and-validation
#8
Kurt Barnhart, Linda Giudice, Steve Young, Tracey Thomas, Michael P Diamond, James Segars, Wahid A Youssef, Stephen Krawetz, Nanette Santoro, Esther Eisenberg, Heping Zhang
OBJECTIVE: Endometriosis is a chronic, estrogen dependent condition that affects 5-10% of reproductive aged women and is associated with pelvic pain and infertility. As the approach to therapy shifts from surgical ablation to pharmacological control, a non-surgical mode of diagnosis would be desirable. The ENDOmarker study was designed by the NICHD Reproductive Medicine Network (RMN) to obtain well characterized and phenotyped bio specimens in a standardized fashion from women with and without endometriosis...
March 7, 2018: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29405314/a-comparison-of-contact-force-and-remote-magnetic-navigation-on-lesion-formation-for-the-ablation-of-atrial-fibrillation
#9
Stefano Grossi, Francesco Grassi, Lorenzo Galleani, Francesca Bianchi, Maria Rosa Conte
RATIONALE: Pulmonary vein isolation (PVI) is the method of choice for the treatment of drug-resistant atrial fibrillation (AF). However, arrhythmia recurrences are frequent due to suboptimal lesions formation and pulmonary vein reconnection. Contact force (CF)- and remote magnetic navigation (RMN)-guided catheters are both capable of improving contact and energy transfer to the tissue, possibly improving PVI outcome. OBJECTIVE: The objective of our study was to compare CF- and RMN-guided PVI in patients with paroxysmal AF in terms of surrogate parameters of the dimension and quality of the lesions...
February 6, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29245153/catheter-ablation-of-focal-atrial-tachycardia-using-remote-magnetic-navigation
#10
Xiao-Yu Liu, Peter Karl Jacobsen, Steen Pehrson, Xu Chen
OBJECTIVES: The outcomes of catheter ablation in focal atrial tachycardia (AT) using remote magnetic navigation (RMN) are still controversial. The objectives of this study were to assess the acute and long-term outcomes of catheter ablation in focal AT using RMN. BACKGROUND: A total of 53 patients with focal AT who underwent catheter ablation using RMN were included. Thirty-six patients had structural heart disease, including previous atrial fibrillation ablation and heart surgery (abnormal group), and the remaining 17 patients had no structural heart disease (normal group)...
December 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29208286/one-pot-biocatalytic-synthesis-of-a-biodegradable-electroactive-macromonomer-based-on-3-4-ethylenedioxytiophene-and-poly-l-lactic-acid
#11
Aruã C da Silva, Tatiana Augusto, Leandro H Andrade, Susana I Córdoba de Torresi
A novel electroactive macromonomer based on poly(l-lactic acid) (PLLA) with (3,4-ethylenedioxythiophene) (EDOT) functional end groups, was prepared by a traditional approach of organometallic polymerization with stannous octanoate [Sn(oct2 )] and enzymatic polymerization using immobilized Candida antarctica Lipase B (CAL-B) and Amano lipase Pseudomonas cepacia(PS-IM), as catalysts. In the synthetic strategy, (2,3-dihydrothieno[3,4-b] dioxin-2-yl)methanol (EDOT-OH) was used to initiate the ring opening polymerization of lactide to yield PLLA with EDOT end group...
February 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29138585/a-comparative-analysis-of-clinical-outcomes-and-disposable-costs-of-different-catheter-ablation-methods-for-the-treatment-of-atrioventricular-nodal-reentrant-tachycardia
#12
Adam E Berman, Harold Rivner, Robin Chalkley, Vahé Heboyan
Background: Catheter ablation of atrioventricular nodal reentrant tachycardia (AVNRT) is a commonly performed electrophysiology (EP) procedure. Few data exist comparing conventional (CONV) versus novel ablation strategies from both clinical and direct cost perspectives. We sought to investigate the disposable costs and clinical outcomes associated with three different ablation methodologies used in the ablation of AVNRT. Methods: We performed a retrospective review of AVNRT ablations performed at Augusta University Medical Center from 2006 to 2014...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/28979908/epicardial-ablation-of-ventricular-tachycardia-in-a-patient-with-arrhythmogenic-right-ventricular-dysplasia-after-failed-conventional-endocardial-ablation-a-case-for-remote-navigation-with-functional-image-integration
#13
Sabine Ernst, Karine Roy, Eric Lim, Glyn Thomas
Arrhythmogenic right ventricular dysplasia (ARVD) is an inheritable heart muscle disease that predominantly affects the right ventricle (RV) and predisposes to ventricular arrhythmias and sudden cardiac death (SCD)(1). The natural history is predominantly related to ventricular electric instability which may lead to arrhythmic SCD, mostly in young people and athletes(2,3), but may progress with significant RV muscle disease and left-ventricular (LV) involvement and can result in right or biventricular heart failure(4)...
December 30, 2016: Global Cardiology Science & Practice
https://www.readbyqxmd.com/read/28958165/long-term-outcomes-of-the-current-remote-magnetic-catheter-navigation-technique-for-ablation-of-atrial-fibrillation
#14
COMPARATIVE STUDY
Shiwen Yuan, Fredrik Holmqvist, Ole Kongstad, Steen M Jensen, Lingwei Wang, Erik Ljungström, Eva Hertervig, Rasmus Borgquist
OBJECTIVES: Comparisons between remote magnetic (RMN) and manual catheter navigation for atrial fibrillation (AF) ablation have earlier been reported with controversial results. However, these reports were based on earlier generations of the RMN system. DESIGN: To evaluate the outcomes of the most current RMN system for AF ablation in a larger patient population with longer follow-up time, 112 patients with AF (78 paroxysmal, 34 persistent) who underwent AF ablation utilizing RMN (RMN group) were compared to 102 AF ablation patients (72 paroxysmal, 30 persistent) utilizing manual technique (Manual group)...
December 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28862806/initial-experience-of-a-novel-mapping-system-combined-with-remote-magnetic-navigation-in-the-catheter-ablation-of-atrial-fibrillation
#15
Changjian Lin, Steen Pehrson, Peter Karl Jacobsen, Xu Chen
BACKGROUND: There have been advancements of sophisticated mapping systems used for ablation procedures over the last decade. Utilization of these novel mapping systems in combination with remote magnetic navigation (RMN) needs to be established. We investigated the new EnSite Precision mapping system (St. Jude Medical, Inc., St. Paul, MN, USA), which collects magnetic data for checking navigation field stability and is built on an open platform, allowing physicians to choose diagnostic and ablation catheters...
December 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28817194/prediction-and-prognosis-of-ventricular-tachycardia-recurrence-after-catheter-ablation-with-remote-magnetic-navigation-for-electrical-storm-in-patients-with-ischemic-cardiomyopathy
#16
Qi Jin, Peter Karl Jacobsen, Steen Pehrson, Xu Chen
BACKGROUND: Ventricular tachycardia (VT) recurrence after catheter ablation for electrical storm is commonly seen in patients with ischemic cardiomyopathy (ICM). HYPOTHESIS: We hypothesized that VT recurrence can be predicted and be related to the all-cause death after VT storm ablation guided by remote magnetic navigation (RMN) in patients with ICM. METHODS: A total of 54 ICM patients (87% male; mean age, 65 ± 7.1 years) presenting with VT storm undergoing acute ablation using RMN were enrolled...
November 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28756554/do-traditional-sheep-breeders-perform-conscious-selection-an-example-from-a-participatory-breeding-program-of-morada-nova-sheep
#17
Janaina Kelli Gomes Arandas, Ângelo Giuseppe Chaves Alves, Olivardo Facó, Ernandes Barboza Belchior, Luciana Shiotsuki, Paulo Márcio Barbosa de Arruda Leite, Maria Norma Ribeiro
The implementation of sustainable breeding programs requires genetic breeding strategies that are appropriate for the reality production systems. It is also essential that the choice of animal selection criteria be based on breeders' knowledge and objectives. This work is an ethno-zootechnical study of the Morada Nova sheep breed and its crossbreeds. The goals of this study were to register and analyze indigenous breeders' knowledge and practices regarding animal selection criteria and to generate technical information to support a participatory breeding program of the breed...
October 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28681330/antiproliferative-activity-and-vegf-expression-reduction-in-mcf7-and-pc-3-cancer-cells-by-paclitaxel-and-imatinib-co-encapsulation-in-folate-targeted-liposomes
#18
Marco Júnio Peres-Filho, Alexandre Pereira Dos Santos, Thais Leite Nascimento, Renato Ivan de Ávila, Fabrícia Saba Ferreira, Marize Campos Valadares, Eliana Martins Lima
Co-encapsulation of anticancer drugs paclitaxel and imatinib in nanocarriers is a promising strategy to optimize cancer treatment. Aiming to combine the cytotoxic and antiangiogenic properties of the drugs, a liposome formulation targeted to folate receptor co-encapsulating paclitaxel and imatinib was designed in this work. An efficient method was optimized for the synthesis of the lipid anchor DSPE-PEG(2000)-folic acid (FA). The structure of the obtained product was confirmed by RMN, FT-IR, and ESI-MS techniques...
January 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28624892/a-meta-analysis-of-manual-versus-remote-magnetic-navigation-for-ventricular-tachycardia-ablation
#19
Mohit K Turagam, Donita Atkins, Roderick Tung, Moussa Mansour, Jeremy Ruskin, Jie Cheng, Luigi Di Biase, Andrea Natale, Dhanunjaya Lakkireddy
BACKGROUND: There are limited studies on the safety and efficacy of remote magnetic navigation (RMN) versus manual navigation (MAN) in ventricular tachycardia (VT) ablation. METHODS: A comprehensive literature search was performed using the keywords VT ablation, stereotaxis, RMN and MAN in Pubmed, Ebsco, Web of Science, Cochrane, and Google scholar databases. RESULTS: The analysis included seven studies (one randomized, three prospective observational, and three retrospective) including 779 patients [both structural heart disease (SHD) and idiopathic VT] comparing RMN (N = 433) and MAN (N = 339) in VT ablation...
September 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28609495/pink-and-white-esthetics-of-a-new-zirconia-implant-a-6-month-to-8-year-follow-up
#20
Deirdre G Beekmans, Bart Rmn Beekmans, Marco S Cune
The aim of this study was to analyze changes in pink and white esthetics in the anterior zone through evaluation of an immediately placed zirconia implant using the Pink and White Esthetic Scores (PES and WES) in 20 patients. Two clinical photographs were compared: one taken directly after placement of the permanent crown (mean PES = 12.8; mean WES = 8.5) and the other taken at a later time (mean PES = 12.8; mean WES = 8.6; not significant). Volunteers found it difficult to correctly identify the implant. Patients completed a questionnaire regarding the pink and white implant esthetics...
July 2017: International Journal of Periodontics & Restorative Dentistry
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