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https://www.readbyqxmd.com/read/28742287/quality-of-life-of-intermittent-urinary-catheterization-users-and-their-caregivers-a-scoping-review
#1
Laís Fumincelli, Alessandra Mazzo, José Carlos Amado Martins, Fernando Manuel Dias Henriques, Daniela Cardoso, Manuel Alves Rodrigues
AIMS: This study aimed to examine and map the scientific evidences regarding quality of life in neurogenic bladder patients and consequently their caregivers by means of a scoping review. DESIGN: This is a scoping review proposal of the Joanna Briggs Institute. METHODS: It was conducted to examine and map the scientific evidences about quality of life (QoL) in neurogenic bladder patients and their caregivers, to identify the meanings attributed to QoL and its relation with intermittent urinary catheterization...
August 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28736708/usefulness-of-a-multi-spline-duodecapolar-catheter-with-smaller-electrodes-and-closer-spacings-for-mapping-and-ablation-of-purkinje-related-premature-ventricular-contraction-and-triggered-ventricular-fibrillation
#2
Susumu Takase, Yasushi Mukai, Kensuke Ohe, Akiko Chishaki, Hideki Tashiro, Hiroyuki Tsutsui
No abstract text is available yet for this article.
May 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28736656/noise-bias-and-polarization-artifact-corrected-optical-coherence-tomography-by-maximum-a-posteriori-intensity-estimation
#3
Aaron C Chan, Young-Joo Hong, Shuichi Makita, Masahiro Miura, Yoshiaki Yasuno
We propose using maximum a-posteriori (MAP) estimation to improve the image signal-to-noise ratio (SNR) in polarization diversity (PD) optical coherence tomography. PD-detection removes polarization artifacts, which are common when imaging highly birefringent tissue or when using a flexible fiber catheter. However, dividing the probe power to two polarization detection channels inevitably reduces the SNR. Applying MAP estimation to PD-OCT allows for the removal of polarization artifacts while maintaining and improving image SNR...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28733782/catheter-ablation-of-atrial-fibrillation-an-overview-for-clinicians
#4
REVIEW
Nebojša Mujović, Milan Marinković, Radoslaw Lenarczyk, Roland Tilz, Tatjana S Potpara
Catheter ablation (CA) of atrial fibrillation (AF) is currently one of the most commonly performed electrophysiology procedures. Ablation of paroxysmal AF is based on the elimination of triggers by pulmonary vein isolation (PVI), while different strategies for additional AF substrate modification on top of PVI have been proposed for ablation of persistent AF. Nowadays, various technologies for AF ablation are available. The radiofrequency point-by-point ablation navigated by electro-anatomical mapping system and cryo-balloon technology are comparable in terms of the efficacy and safety of the PVI procedure...
July 21, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28730651/a-comparison-of-the-electrophysiologic-and-electroanatomic-characteristics-between-the-right-and-left-atrium-in-persistent-atrial-fibrillation-is-the-right-atrium-a-window-into-the-left
#5
Sandeep Prabhu, Aleksandr Voskoboinik, Alex Ja McLellan, Kah Y Peck, Bupesh Pathik, Chrishan J Nalliah, Geoff R Wong, Sonia M Azzopardi, Geoffrey Lee, Justin Mariani, Liang-Han Ling, Andrew J Taylor, Jonathan M Kalman, Peter M Kistler
INTRODUCTION: The right atrium (RA) is readily accessible; however, it is unclear whether changes in the RA are representative of the LA. We performed detailed bi-atrial electroanatomic mapping to determine the electrophysiological relationship between the atria. METHODS AND RESULTS: Consecutive patients with persistent AF underwent bi-atrial electroanatomical mapping with a contact force catheter acquiring points with a CF > 10 g prior to ablation. Points were analyzed for tissue voltage, complex electrograms, low voltage (< 0...
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28716699/bridge-to-success-a-better-method-of-cryoablation-for-atrioventricular-nodal-reentrant-tachycardia-in-children
#6
Charitha D Reddy, Scott R Ceresnak, Kara S Motonaga, Kishor Avasarala, Christine Feller, Anthony Trela, Debra Hanisch, Anne M Dubin
BACKGROUND: Cryoablation for AVNRT is associated with higher recurrence rates than radiofrequency ablation(RF). Junctional tachycardia marks procedural success with RF, but no such indicator exists for cryoablation. OBJECTIVE: To determine the impact of voltage mapping plus longer ablation lesions on mid-term success of cryoablation for children with AVNRT. METHODS: A single-center retrospective analysis was performed of pediatric patients with AVNRT who underwent cryoablation from 2011-2015...
July 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28707848/frontiers-in-non-invasive-cardiac-mapping-future-implications-for-arrhythmia-treatment
#7
Antonio Frontera, Ghassen Cheniti, Claire A Martin, Masateru Takigawa, Josselin Duchateau, Stephane Puyo, Ruairidh Martin, Nathaniel Thompson, Takeshi Kitamura, Konstantinos Vlachos, Michael Wolf, Nora Al-Jefairi, Gregoire Massouille, Thomas Pambrun, Arnaud Denis, Frederic Sacher, Nicolas Derval, Remis Dubois, Pierre Jaïs, Meleze Hocini, Michel Haissaguerre
Electrocardiographic mapping (ECM) is a non invasive technique using body surface potentials and CT geometry to reconstruct epicardial maps. ECM is emerging as an important tool not only for diagnostic mapping, but also as a guide for trans-catheter ablation of complex arrhythmias such as atrial fibrillation. It provides the clinician with an immediate global view of the substrate, allowing easier pre-procedural planning, potential improving clinical outcomes. Panoramic mapping of ventricular fibrillation (VF) is helping to develop a better understanding of its physiology, with future implications for the identification of therapeutic targets in patients with structural heart disease, as well as in idiopathic VF...
July 12, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28706000/absence-of-compensatory-vasodilation-with-perfusion-pressure-challenge-in-exercise-evidence-for-and-implications-of-the-non-compensator-phenotype
#8
Robert F Bentley, Jeremy J Walsh, Patrick J Drouin, Aleksandra Velickovic, Sarah J Kitner, Alyssa M Fenuta, Michael E Tschakovsky
Compromising oxygen delivery (O2D) during exercise requires compensatory vasodilatory and/or pressor responses to protect O2D : demand matching. The purpose of the study was to determine whether compensatory vasodilation is absent in some healthy, young individuals in the face of a sudden reduction in exercising forearm perfusion pressure, and whether this affects the exercise pressor response. 21 healthy, young males (21.6±2.0yrs) completed rhythmic forearm exercise at a work rate equivalent to 70% of their own maximal exercise vasodilation...
July 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28705106/characteristic-features-of-patients-with-multiple-accessory-pathways
#9
Michal Orczykowski, Pawel Derejko, Piotr Urbanek, Robert Bodalski, Joanna Zakrzewska-Koperska, Maria Bilińska, Lukasz Szumowski
Objective Only limited clinical and electrophysiological data concerning patients (pts) with multiple accessory pathways (MAP) in comparison to large control groups are available. The aim of our study was to analyse these data from the largest cohort of patients with multiple accessory pathways and a large control group. Method and results We analysed data from pts with MAP (group 1) and pts with a single accessory pathway (AP) (group 2) referred for radiofrequency catheter ablation (RFCA) at our tertiary centre...
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28697936/radiofrequency-catheter-ablation-for-atrial-fibrillation-approaches-and-outcomes
#10
REVIEW
Manish Kalla, Prashanthan Sanders, Jonathan M Kalman, Geoffrey Lee
Catheter ablation is now at the forefront of the management of symptomatic atrial fibrillation (AF). Its role in paroxysmal AF is well defined with considerable data supporting its role. Catheter ablation in persistent AF has been less effective and the subject of considerable debate. Mechanistic studies have demonstrated the critical role of pulmonary vein physiology in paroxysmal AF, whereas the mechanisms that sustain persistent AF are not well understood. Additional substrate ablation in persistent AF has not improved long-term outcomes and the use of novel mapping technologies to assess rotor activity remains controversial...
June 13, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28688066/erratum-to-an-efficient-cardiac-mapping-strategy-for-radiofrequency-catheter-ablation-with-active-learning
#11
Yingjing Feng, Ziyan Guo, Ziyang Dong, Xiao-Yun Zhou, Ka-Wai Kwok, Sabine Ernst, Su-Lin Lee
No abstract text is available yet for this article.
July 7, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28681467/proliferation-of-endogenous-regulatory-t-cells-improve-the-pathophysiology-associated-with-placental-ischaemia-of-pregnancy
#12
Tarek Ibrahim, Lukasz Przybyl, Ashlyn C Harmon, Lorena M Amaral, Jessica L Faulkner, Denise C Cornelius, Mark W Cunningham, Thomas Hünig, Florian Herse, Gerd Wallukat, Ralf Dechend, Babbette LaMarca
PROBLEM: Preeclampsia (PE) is associated with inflammation and decreased Treg cells and IL-10. The reduced uterine perfusion pressure (RUPP) rat model of PE exhibits these characteristics, and we hypothesized that induction of endogenous Tregs by a specific stimulus (CD28 superagonistic monoclonal antibody) would reduce inflammation, vasoactive factors, and hypertension in RUPP rats. METHOD OF STUDY: RUPP was performed at gestation day (GD) 14; CD28 superagonist was administered intraperitoneally GD15; GD18 carotid catheters were inserted, and GD19 MAP and pup weight, blood, and tissues were collected...
July 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28677509/therapy-of-cardiac-arrhythmias-in-children-an-emerging-role-of-electroanatomical-mapping-systems
#13
Casale Matteo, Mezzetti Maurizio, Tulino Viviana, Michele Scarano, Busacca Paolo, Dattilo Giuseppe
INTRODUCTION: Cardiac arrhythmias are challenging diseases in childhood. Most of them in pediatric subjects (90.2%) are atrioventricular reentrant tachycardias and atrioventricular nodal reentrant tachycardias. The standard 12-lead ECG is a highly accurate diagnostic tool but an invasive electrophysiological study is often required. The main concern about this kind of procedures is their invasive nature and the need of radiations, so antiarrhythmic agents are currently the first line therapy...
July 5, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28672916/diagnostic-accuracy-of-coronary-ct-angiography-combined-with-dual-energy-myocardial-perfusion-imaging-for-detection-of-myocardial-infarction
#14
Ruijuan Han, Kai Sun, Bin Lu, Ruiping Zhao, Kuncheng Li, Xinchun Yang
The aim of the present study was to evaluate the diagnostic accuracy of second generation dual-energy computed tomography (DECT) myocardial perfusion imaging for the detection of myocardial infarction (MI) in patients with suspected MI. In total, 56 patients underwent DECT. Among those, 40 patients had MI that was detected by catheter coronary angiography and cardiac troponin I elevation and evolution of acute MI detected by electrocardiogram changes. The diagnostic accuracy, including the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for the detection of MI were evaluated, as well as the coronary image quality of coronary artery and radiation dose...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28670858/rotors-exhibit-greater-surface-ecg-variation-during-ventricular-fibrillation-than-focal-sources-due-to-wavebreak-secondary-rotors-and-meander
#15
Gordon Ho, Christopher T Villongco, Omid Yousefian, Aaron Bradshaw, Andrew Nguyen, Yonatan Faiwiszewski, Justin Hayase, Wouter-Jan Rappel, Andrew D McCulloch, David E Krummen
INTRODUCTION: Ventricular fibrillation is a common life-threatening arrhythmia. The ECG of VF appears chaotic but may allow identification of sustaining mechanisms to guide therapy. HYPOTHESIS: We hypothesized that rotors and focal sources manifest distinct features on the ECG, and computational modeling may identify mechanisms of such features. METHODS: VF induction was attempted in 31 patients referred for ventricular arrhythmia ablation...
July 3, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28664343/catheter-ablation-of-atypical-atrial-flutter-a-novel-3d-anatomic-mapping-approach-to-quickly-localize-and-terminate-atypical-atrial-flutter
#16
Sri Sundaram, William Choe, J Ryan Jordan, Nate Mullins, Charles Boorman, Eric J Kessler, Sunil Nath
PURPOSE: This study aims to describe a novel method of High Density Activation Sequence Mapping combined with Voltage Gradient Mapping Overlay (HD-VGM) to quickly localize and terminate atypical atrial flutter. METHODS: Twenty-one patients presenting with 26 different atypical atrial flutter circuits after a previous catheter or surgical AF ablation were studied. HD-VGM was performed with a commercially available impedance-based mapping system to locate and successfully ablate the critical isthmus of each tachycardia circuit...
June 29, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28651348/an-e-e-ratio-on-echocardiography-predicts-the-existence-of-left-atrial-low-voltage-areas-and-poor-outcomes-after-catheter-ablation-for-atrial-fibrillation
#17
Masaharu Masuda, Masashi Fujita, Osamu Iida, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Takashi Kanda, Akihiro Sunaga, Takuya Tsujimura, Yasuhiro Matsuda, Takuya Ohashi, Masaaki Uematsu
Aims: An elevated left atrial pressure has been reported to play an important role in the development of atrial remodelling in atrial fibrillation (AF) patients. The study aimed at elucidating the association between the diastolic early transmitral flow velocity/mitral annular velocity (E/e', a non-invasive surrogate of left atrial pressure) and left atrial low-voltage-area existence, and the prognostic impact of the E/e' on procedural outcomes in patients undergoing AF ablation. Methods and results: Total of 215 consecutive patients were divided into 3 groups based on the estimated left atrial pressure: normal (E/e' < 8...
June 22, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28640075/maximum-voltage-gradient-technique-for-optimization-of-ablation-for-typical-atrial-flutter-with-zero-fluoroscopy-approach
#18
MULTICENTER STUDY
Karol Deutsch, Janusz Śledź, Mariusz Mazij, Bartosz Ludwik, Michał Labus, Dariusz Karbarz, Bernadetta Pasicka, Michał Chrabąszcz, Arkadiusz Śledź, Monika Klank-Szafran, Laura Vitali-Sendoz, Tomasz Kameczura, Jerzy Śpikowski, Piotr Stec, Marek Ujda, Sebastian Stec
Radiofrequency catheter ablation (RFCA) is an established effective method for the treatment of typical cavo-tricuspid isthmus (CTI)-dependent atrial flutter (AFL). The introduction of 3-dimensional electro-anatomic systems enables RFCA without fluoroscopy (No-X-Ray [NXR]). The aim of this study was to evaluate the feasibility and effectiveness of CTI RFCA during implementation of the NXR approach and the maximum voltage-guided (MVG) technique for ablation of AFL.Data were obtained from prospective standardized multicenter ablation registry...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639747/the-effect-of-activation-rate-on-left-atrial-bipolar-voltage-in-patients-with-paroxysmal-atrial-fibrillation
#19
Steven E Williams, Nick Linton, Louisa O'Neill, James Harrison, John Whitaker, Rahul Mukherjee, Christopher A Rinaldi, Jaswinder Gill, Steven Niederer, Matthew Wright, Mark O'Neill
INTRODUCTION: Bipolar voltage is used during electroanatomic mapping to define abnormal myocardium, but the effect of activation rate on bipolar voltage is not known. We hypothesized that bipolar voltage may change in response to activation rate. By examining corresponding unipole signals we sought to determine the mechanisms of such changes. METHODS AND RESULTS: LA extrastimulus mapping was performed during CS pacing in 10 patients undergoing 1(st) time paroxysmal atrial fibrillation ablation...
June 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28637187/identification-of-pulmonary-vein-reconnection-gaps-with-high-density-mapping-in-redo-atrial-fibrillation-ablation-procedures
#20
Ignacio García-Bolao, Gabriel Ballesteros, Pablo Ramos, Diego Menéndez, Ane Erkiaga, Renzo Neglia, Marta Jiménez Martín, Enrique Vives-Rodríguez
Aims: Maps obtained by means of electroanatomic high-density mapping (HDM) systems have shown their use in the identification of conduction gaps in experimental atrial linear lesion models. The objective of this study was to assess the use of HDM in the recognition of reconnection gaps in pulmonary veins (PV) in redo atrial fibrillation (AF) ablation procedures. Methods and results: One hundred and eight patients were included in a non-randomized study that assessed the recognition of reconnection gaps in PV by means of HDM compared to a control group that received conventional non-fluoroscopic guidance with a circular multipolar catheter (CMC)...
June 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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