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https://www.readbyqxmd.com/read/27912926/acute-management-of-refractory-and-unstable-pediatric-supraventricular-tachycardia
#1
Jonathan Lewis, Gaurav Arora, Dana L Tudorascu, Robert W Hickey, Richard A Saladino, Mioara D Manole
OBJECTIVE: To characterize the management of acute pediatric supraventricular tachycardia (SVT), placing special emphasis on infants, patients refractory to adenosine (refractory SVT), and patients with hypotension, poor perfusion, or altered mental status (unstable SVT). STUDY DESIGN: Retrospective cohort study of patients 0-18 years of age without congenital heart disease who presented to our pediatric hospital from January 2003 to December 2012 for the treatment of acute SVT...
November 22, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27909537/a-comparison-between-noacs-and-warfarin-on-time-to-elective-cardioversion
#2
REVIEW
Siva Krothapalli Md, Prashant D Bhave Md Fhrs
Cardioversion of atrial fibrillation is a procedure that has been commonly performed for over half a century. There is known to be an elevated risk of thromboembolism around the time of cardioversion, which has been shown to be drastically reduced with oral anticoagulation. The consistency of therapeutic anticoagulation in the weeks leading up to elective cardioversion is an important factor in the safety of the procedure. Until recently, the only option for oral anti-coagulation was Warfarin. The challenges of dosing Warfarin to achieve a therapeutic INR are well documented...
August 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909513/assessment-of-sinoatrial-node-function-in-patients-with-persistent-and-long-standing-persistent-forms-of-atrial-fibrillation-after-maze-iii-procedure-combined-with-mitral-valve-operation
#3
Kulikov Aleksei A, Bokeria Leo A
RESEARCH OBJECTIVE: Assessment of sinoatrial node function after Maze III procedure combined with a mitral valve operation. METHODS: 100 patients were included in the research with persistent and long-standing persistent forms of atrial fibrillation (AF) and need of operative treatment concerning valve disease. The following preoperative preparation methods were executed to all patients: Electrocardiogram in 12 standard assignments;Two-dimensional echocardiographic with assessment of systolic and diastolic functions of the left ventricle, size of the left atrium and grade of valve disease;Transesophageal echocardiography for exclusion of blood clots in the left atrium and left atrial appendage;Coronary angiography for exclusion of coronary heart disease;Computer tomography for examination of cardiac chambers and anatomic characteristics of pulmonary veins...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909492/a-comparison-between-dabigatran-and-warfarin-on-time-to-elective-cardioversion
#4
Amanda N Basto PharmD, Nathan P Fewel PharmD, Rajiv Gupta Md, Eileen M Stock PhD, Mia Ta PharmD
OBJECTIVE: To evaluate the use of dabigatran versus warfarin on time to elective direct current cardioversion (DCCV). METHODOLOGY: This retrospective observational study was conducted at a single Veterans Affairs hospital in the Southwestern region of the U.S. Patients with atrial fibrillation or atrial flutter who were initiated on either warfarin or dabigatran prior to DCCV were reviewed. The time to cardioversion was compared between warfarin and dabigatran, as well as costs of therapy, rescheduling rates, and adverse events...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909490/effects-of-atrial-fibrillation-cardioversion-after-percutaneous-mitral-balloon-valvuloplasty-on-echocardiographic-left-and-right-atrial-functions
#5
Ayman Morttada Md, Aly Ramzy Md, Said Khaled Md, Amal Ayoub Md, Sameh Samir Md, Hossam Zaki Md
Amongst patients with mitral stenosis (MS), the most common complication is AF.Our study aimed at evaluating the effect of AF cardioversion after Percutaneous Mitral Balloon Valvuloplasty (PMBV) on echocardiographic atrial functions. The study included 34 patients with MS and AF, presenting to Ain-shams University hospitals, who underwent successful PMBV then randomized into 2 different groups according to AF management strategy. Group-I patients (n=16) received DC cardioversion after amiodarone infusion (within 24 hours post-PMBV) in addition to anticoagulation...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27899863/left-ventricular-perforation-due-to-radiofrequency-catheter-ablation-for-incessant-ventricular-tachycardia-in-a-post-myocardial-infarction-patient
#6
Ahmet Öz, Mehmet Bozbay, Emrah Bozbeyoğlu, Mert İlker Hayıroğlu, Burcu Akyol, Ahmet Taha Alper, Ahmet İlker Tekkeşin, Özlem Yıldırımtürk, Mehmet Eren, Seçkin Pehlivanoğlu
Left ventricular (LV) myocardial perforation is a rare complication following ventricular tachycardia (VT) ablation with radiofrequency (RF); this complication should be diagnosed and treated promptly. LV free wall rupture after elective RF ablation for sustained VT refractory to medical treatment is rarely reported in the medical literature. Herein we discuss an interesting case which contributes to the ongoing literature, regarding a patient who developed LV perforation due to RF ablation for VT which was resistant to pharmacotherapy and repeated cardioversion attempts after acute myocardial infarction...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27889553/long-term-outcomes-from-catheter-ablation-of-very-longstanding-persistent-atrial-fibrillation
#7
Karen P Phillips, Daniel T Walker
INTRODUCTION: Success rates for catheter ablation of longstanding persistent atrial fibrillation (AF) are significantly poorer than for recently persistent or paroxysmal forms. We report on single centre long term outcomes from ablation of very longstanding (> 2years) persistent AF. MATERIAL AND METHODS: A retrospective analysis of outcomes for patients undergoing catheter ablation for symptomatic very longstanding persistent AF between 2008 and 2013 was performed...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27885496/descending-aortic-mechanics-and-atrial-fibrillation-a-two-dimensional-speckle-tracking-transesophageal-echocardiography-study
#8
Rogério Teixeira, Ricardo Monteiro, Paulo Dinis, Maria José Santos, Ana Botelho, Nuno Quintal, Nuno Cardim, Lino Gonçalves
Vascular mechanics assessed with two-dimensional speckle tracking echocardiography (2D-STE) could be used as a new imaging surrogate of vascular stiffening. The CHA2DS2-VASc score is considered accurate as an estimate of stroke risk in non-valvular AF, although many potential stroke risk factors have not been included in this scoring method. The purpose of this research is to study the feasibility of evaluating vascular mechanics at the descending aorta in non-valvular AF patients using transesophageal 2D-STE and to analyze the association between descending aortic mechanics and stroke...
November 24, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27871856/will-cardiac-optogenetics-find-the-way-through-the-obscure-angles-of-heart-physiology
#9
Nicola Pianca, Tania Zaglia, Marco Mongillo
Optogenetics is a technique exploded in the last 10 years, which revolutionized several areas of biological research. The brightest side of this technology is the use of light to modulate non-invasively, with high spatial resolution and millisecond time scale, excitable cells genetically modified to express light-sensitive microbial ion channels (opsins). Neuroscience has first benefited from such fascinating strategy, in intact organisms. By shining light to specific neuronal subpopulations, optogenetics allowed unearth the mechanisms involved in cell-to-cell communication within the context of intact organs, such as the brain, formed by complex neuronal circuits...
November 18, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27871122/efficacy-and-safety-of-ablation-for-people-with-non-paroxysmal-atrial-fibrillation
#10
REVIEW
Jonathan Nyong, Guy Amit, Alma J Adler, Onikepe O Owolabi, Pablo Perel, David Prieto-Merino, Pier Lambiase, Juan Pablo Casas, Carlos A Morillo
BACKGROUND: The optimal rhythm management strategy for people with non-paroxysmal (persistent or long-standing persistent) atrial fibrilation is currently not well defined. Antiarrhythmic drugs have been the mainstay of therapy. But recently, in people who have not responded to antiarrhythmic drugs, the use of ablation (catheter and surgical) has emerged as an alternative to maintain sinus rhythm to avoid long-term atrial fibrillation complications. However, evidence from randomised trials about the efficacy and safety of ablation in non-paroxysmal atrial fibrillation is limited...
November 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27868213/characteristics-and-outcomes-of-concurrently-diagnosed-new-rapid-atrial-fibrillation-or-flutter-and-new-reduced-ejection-fraction
#11
Yasser Rodriguez, Andrew D Althouse, Evan C Adelstein, Sandeep K Jain, G Stuart Mendenhall, Samir Saba, Alaa A Shalaby, Andrew H Voigt, Norman C Wang
BACKGROUND: Characteristics and outcomes of concurrently diagnosed new rapid atrial fibrillation (AF) or flutter (AFL) and new heart failure with reduced left ventricular ejection fraction (LVEF) are not well described. METHODS: A retrospective cohort study of subjects referred for expedited transesophageal echocardiography (TEE)-guided rhythm-control strategies for concurrent new AF/AFL and new LVEF ≤40% diagnosed during the same admission was analyzed. RESULTS: Twenty-five subjects (median age 57 years; 96% male; 100% Caucasian; median CHA2 DS2 -VASc = 2) presented with new AF (n = 18) or AFL (n = 7) with rapid ventricular rate (median 135 beats per minute) and new reduced LVEF (median 27%; range, 10%-37...
November 21, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27860070/cha2-ds2-vasc-score-predicts-unsuccessful-electrical-cardioversion-in-patients-with-persistent-atrial-fibrillation
#12
Elzbieta Mlodawska, Anna Tomaszuk-Kazberuk, Paulina Lopatowska, Marcin Kaminski, Wlodzimierz Jerzy Musial
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia occurring in 2% of the population. It is known that AF increases morbidity and limited quality of life. The CHA2 DS2 VASc score is widely used to assess thrombotic complications. The CHA2 DS2 VAS score was not used till now in predicting effectiveness of electrical cardioversion. AIM: The aim of the study was to assess the value of CHA2 DS2 VASc score in predicting unsuccessful electrical cardioversion...
November 9, 2016: Internal Medicine Journal
https://www.readbyqxmd.com/read/27853971/evaluation-of-left-atrial-appendage-function-and-thrombi-in-patients-with-atrial-fibrillation-from-transthoracic-to-real-time-3d-transesophageal-echocardiography
#13
Ilaria Dentamaro, Domenico Vestito, Ennio Michelotto, Delia De Santis, Vittoria Ostuni, Christian Cadeddu, Paolo Colonna
The detection of embolic sources in patients with atrial fibrillation (AF) is important to guide anticoagulant therapy. Two-dimensional transesophageal echocardiography (TEE) is the gold standard to study left atrial appendage (LAA) anatomy and morphology, despite some false-positive diagnosis. We hypothesized that real time 3D TEE (RT3DTEE) is superior to 2DTEE in detecting and/or excluding LAA thrombi. We studied 93 patients with non-valvular AF (60 males, age = 67.1 ± 14.2 years) referred for electric cardioversion with transthoracic, 2DTEE and RT3DTEE...
November 17, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27851275/1640-direct-current-cardioversion-is-a-rare-cause-of-takotsubo-cardiomyopathy
#14
Kizhan Muhammad, Hussam Elkambergy, Muhammad Ali Javed
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27828791/efficacy-and-safety-of-vernakalant-for-cardioversion-of-recent-onset-atrial-fibrillation-in-the-asia-pacific-region-a-phase-3-randomized-controlled-trial
#15
Gregory N Beatch, Kiran Bhirangi, Steen Juul-Moller, Jörg Rustige
Atrial fibrillation (AF) is a common clinically significant cardiac arrhythmia. This phase 3 randomized, double-blind, placebo-controlled trial assessed the efficacy and safety of vernakalant hydrochloride for the pharmacological conversion of AF to sinus rhythm (SR) in patients with recent-onset (>3 hours-≤7 days) symptomatic AF from the Asia-Pacific region. Patients received an infusion of vernakalant (3 mg/kg) or placebo over 10 minutes. If AF had not been terminated 15 minutes later, a second infusion of vernakalant (2 mg/kg) or placebo 15 minutes was administered...
November 7, 2016: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/27815140/transcutaneous-direct-current-cardioversion-in-a-foal-with-lone-atrial-fibrillation
#16
B M Potter, B A Scansen, L K Dunbar, S M Reed, R E Toribio
There are rare published reports of atrial fibrillation (AF) in foals, all of which are associated with structural heart disease or within the adaptive period of newborns. This report describes a 3-month-old Thoroughbred filly with AF and a structurally normal heart on echocardiography. Medical cardioversion of the foal's AF was attempted with three 20mg/kg doses of quinidine sulfate therapy without success. Timed, transcutaneous, direct current cardioversion was successfully performed using adhesive patches on the midthorax in conjunction with intravenous procainamide at a total dose of 20mg/kg...
November 1, 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27803517/a-rare-case-of-supraventricular-tachycardia-during-pregnancy-and-successful-management-in-crisis-situation-with-electrical-cardioversion-and-radiofrequency-ablation
#17
Rekha Agrawal, Hemant Shintre, Bindu Rani
No abstract text is available yet for this article.
October 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27788744/-clinical-analysis-of-19-cases-of-pregnant-women-with-rapid-arrhythmia-in-the-treatment-of-radiofrequency-catheter-ablation
#18
L Chu, J Zhang, Y N Li, D Y Long
: Objective: To investigate the risk of radiofrequency catheter ablation and maternal and infant in pregnant women with rapid arrhythmia during pregnancy. Methods: The clinical data of the 19 cases of pregnancy complicated with rapid arrhythmia were retrospectively analyzed and followed up, including the gestational week, the type of arrhythmia, the treatment, and the outcome of the mother and child in Beijing Anzhen Hospital of Capital Medical University from January 2002 to March 2016...
October 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/27784738/pulmonary-vein-antral-isolation-and-nonpulmonary-vein-trigger-ablation-are-sufficient-to-achieve-favorable-long-term-outcomes-including-transformation-to-paroxysmal-arrhythmias-in-patients-with-persistent-and-long-standing-persistent-atrial-fibrillation
#19
Jackson J Liang, Melissa A Elafros, Daniele Muser, Rajeev K Pathak, Pasquale Santangeli, Erica S Zado, David S Frankel, Gregory E Supple, Robert D Schaller, Rajat Deo, Fermin C Garcia, David Lin, Mathew D Hutchinson, Michael P Riley, David J Callans, Francis E Marchlinski, Sanjay Dixit
BACKGROUND: Transformation from persistent to paroxysmal atrial fibrillation (AF) after ablation suggests modification of the underlying substrate. We examined the nature of initial arrhythmia recurrence in patients with nonparoxysmal AF undergoing antral pulmonary vein isolation and nonpulmonary vein trigger ablation and correlated recurrence type with long-term ablation efficacy after the last procedure. METHODS AND RESULTS: Three hundred and seventeen consecutive patients with persistent (n=200) and long-standing persistent (n=117) AF undergoing first ablation were included...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27782345/safety-and-clinical-outcomes-of-catheter-ablation-of-atrial-fibrillation-in-patients-with-chronic-kidney-disease
#20
Aditya J Ullal, Daniel W Kaiser, Jun Fan, Susan Schmitt, Claire T Than, Wolfgang C Winkelmayer, Paul A Heidenreich, Jonathon P Piccini, Marco V Perez, Paul J Wang, Mintu P Turakhia
INTRODUCTION: Data regarding catheter ablation of atrial fibrillation (AF) in patients with chronic kidney disease (CKD) is limited. We therefore assessed the association of CKD with common safety and clinical outcomes in a nationwide sample of ablation recipients. METHODS: Using MarketScan(®) Commercial Claims and Medicare Supplemental Databases, we evaluated 30-day safety and 1-year clinical outcomes in patients who underwent a first AF ablation procedure between 2007-2011...
October 26, 2016: Journal of Cardiovascular Electrophysiology
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