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Preexcitation

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Hide and Seek: Intermittent Preexcitation Wolff-Parkinson-White Syndrome Case Report and Management Overview.

Neil P Larson, Jennifer B Rosenthal, Rachel E Bridwell, Lloyd Tannenbaum, Amber Cibrario,

Wolff-Parkinson-White (WPW) syndrome is an uncommon form of cardiac preexcitation due to an underlying structural accessory pathway, which may lead to potentially lethal arrhythmias. Classic electrocardiogram (ECG) findings of WPW include short PR interval, slurred upstroke of the QRS complex, and prolonged QRS duration. However, in intermittent preexcitation, a rare variant ... Read more >>

Cureus (Cureus)
[2020, 12(7):e8971]

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Experience using propranolol for the management of supraventricular tachycardia in patients younger than 1 year.

Eliana S Nicastro, María G Majdalani, Mauricio S Abello, David G Doiny, Estela C Falconi, Carlos J Díaz, José M Moltedo,

OBJECTIVE:To assess the results and adverse events of propranolol therapy in infants younger than 1 year with supraventricular tachycardia. POPULATION AND METHODS:Infants younger than 1 year with documented supraventricular tachycardia who received oral treatment and prophylaxis with propranolol. Sex and age, associated congenital heart disease, ventricular preexcitation in the base ... Read more >>

Arch Argent Pediatr (Archivos argentinos de pediatria)
[2020, 118(4):273-276]

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Intermittent bifascicular block in a young athlete: A novel variant of ventricular preexcitation?

Hussam Ali, Sara Foresti, Gabriele Egidy Assenza, Pierpaolo Lupo, Guido De Ambroggi, Riccardo Cappato,

J. Cardiovasc. Electrophysiol. (Journal of cardiovascular electrophysiology)
[2020, :]

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Loss of ventricular preexcitation during noninvasive testing does not exclude high-risk accessory pathways: A multicenter study of WPW in children.

Carolina A Escudero, Scott R Ceresnak, Kathryn K Collins, Robert H Pass, Peter F Aziz, Andrew D Blaufox, Michel Cabrera Ortega, Bryan C Cannon, Mitchell Cohen, Brynn E Dechert, Anne M Dubin, Kara S Motonaga, Michael R Epstein, Christopher C Erickson, Steven B Fishberger, Gregory J Gates, Christine A Capone, Lynn Nappo, Naomi J Kertesz, Jeffrey J Kim, Santiago O Valdes, Peter Kubuš, Ian H Law, Jennifer Maldonado, Jeremy P Moore, James C Perry, Shubhayan Sanatani, Stephen P Seslar, Ira Shetty, Frank J Zimmerman, Jonathan R Skinner, Luciana Marcondes, Elizabeth A Stephenson, Hiroko Asakai, Ronn E Tanel, Orhan Uzun, Susan P Etheridge, Christopher Janson,

BACKGROUND:Abrupt loss of ventricular preexcitation on noninvasive evaluation, or nonpersistent preexcitation, in Wolff-Parkinson-White syndrome (WPW) is thought to indicate a low risk of life-threatening events. OBJECTIVE:The purpose of this study was to compare accessory pathway (AP) characteristics and occurrences of sudden cardiac arrest (SCA) and rapidly conducted preexcited atrial fibrillation ... Read more >>

Heart Rhythm (Heart rhythm)
[2020, :]

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Fasciculoventricular bypass tracts: Electrocardiographic and electrophysiologic features.

Dimitrios Asvestas, George Bazoukis, Panagiotis Mililis, Stelios Dragasis, Athanasia Megarisiotou, Konstantinos Vlachos, Antonios Sideris, Michael Efremidis, Konstantinos P Letsas,

Fasciculoventricular accessory pathways are rare variants of preexcitation. The differential diagnosis of fasciculoventricular accessory pathways from other preexcitation variants can be challenging. Based on two cases, we discuss the specific electrocardiographic and electrophysiologic features of fasciculoventricular bypass tracts. ... Read more >>

J Arrhythm (Journal of Arrhythmia)
[2020, 36(3):537-541]

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Incessant accelerated idioventricular rhythm mimicking preexcitation.

Juan Benezet-Mazuecos, Álvaro Lozano Rosado, Julian Crosa,

ECG of patients with Wolf Parkinson White (WPW) syndrome may simulate other entities such as myocardial infarction, ventricular premature complexes, ventricular bigeminy, accelerated idioventricular rhythm, intermittent bundle branch block or electrical alternans. On the other hand, the opposite can also occur where these other conditions may simulate WPW. We present ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2020, 61:137-140]

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Increased preexcitation on electrocardiography improves accuracy of algorithms for accessory pathway localization in Wolff-Parkinson-White syndrome.

Paweł Moskal, Adam Bednarski, Grzegorz Kiełbasa, Danuta Czarnecka, Marek Jastrzębski,

BACKGROUND:Several electrocardiographic (ECG) algorithms have been developed for predicting accessory pathway (AP) location in Wolff-Parkinson-White syndrome. However, their accuracy may be related to the manifested degree of preexcitation on ECG. AIMS:Our goal was to assess the effect of the degree of preexcitation on the accuracy of 4 traditional AP localization ... Read more >>

Kardiol Pol (Kardiologia polska)
[2020, 78(6):567-573]

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The vectorcardiogram and the main dromotropic disturbances.

Andrés Ricardo Pérez-Riera, Raimundo Barbosa-Barros, Rodrigo Daminello-Raimundo, Luiz Carlos de Abreu, Kjell Nikus,

Until the mid-1980s, it was believed that the vectorcardiogram (VCG) presented a greater specificity, sensitivity and accuracy in comparison to the 12-lead electrocardiogram (ECG), in the cardiology diagnosis. Currently, the VCG still is superior to the ECG in specific situations, such as in the evaluation of myocardial infarctions when associated ... Read more >>

Curr Cardiol Rev (Current cardiology reviews)
[2020, :]

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Sudden cardiac death risk stratification in ventricular preexcitation: A tale of two eras.

Eric N Prystowsky, Leonard Steinberg,

Heart Rhythm (Heart rhythm)
[2020, :]

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Mahaim fiber connecting the right atrium to the left ventricle: a case report

Daisuke Yakabe, Yusuke Fukuyama, Masahiro Araki, Akemi Aso, Toshihiro Nakamura,

Abstract In the majority of cases presenting with the Mahaim fiber (MF), the MF connects the lateral right atrium (RA) to the right bundle branch or the right ventricle. We present the case of a 33‐year‐old man with antidromic atrioventricular reentrant tachycardia using MF connected to the septal RA and ... Read more >>

J Arrhythm (Journal of arrhythmia)
[2020, 36(4):774-776]

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Evolution of acute ST-segment elevation myocardial infarction in a patient with ventricular preexcitation.

Jacob J Mayfield, Nora Goldschlager,

Wolff-Parkinson-White pattern is a relatively common electrocardiographic phenomenon caused by accessory atrioventricular (AV) conduction, which can make the diagnosis of acute myocardial infarction challenging. There is little existing literature regarding the interpretation of electrocardiograms in patients with accessory AV conduction pathways who present with acute myocardial infarction. We describe a ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2020, 60:188-191]

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Success rate and safety of catheter ablation in preexcitation syndrome: A comparison between adult and pediatric patients.

Radosław Pietrzak, Magda Franke, Monika Gawałko, Piotr Lodziński, Paweł Balsam, Marcin Grabowski, Bożena Werner,

BACKGROUND:In contrast to adults, in whom cardiac rhythm disorders are mainly conditioned by coronary artery disease, in children, arrhythmias are most often associated with inherited heart disorders. Catheter ablation (CA) has an important role in the management of cardiac arrhythmias, in adults and children. The aim of the study was ... Read more >>

Cardiol J (Cardiology journal)
[2020, :]

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Manifest preexcitation with a prolonged PR interval: What is the mechanism?

Pepa Sánchez Borque, José Manuel Rubio Campal, Ángel Miracle Blanco, Loreto Bravo Calero,

A 44-year-old woman with a past history of surgical ablation of an accessory pathway presented to our facility with episodes of palpitations and dizziness. An ECG showed sinus rhythm with a prolonged PR interval and a preexcited QRS complex. An EP study revealed AV conduction through a postero-septal accessory pathway ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2020, 62:26-29]

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Accessory pathway-mediated cardiomyopathy: Left ventricular systolic dysfunction due to preexcitation.

Hong-Seok Lee, Ravi Sureddi,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(5):272-274]

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An unusual supraventricular tachycardia in a patient with ventricular preexcitation.

Hein J Wellens,

Heart Rhythm (Heart rhythm)
[2020, 17(4):672-673]

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Wolff-Parkinson-White Syndrome: A Master of Disguise.

Amit Sapra, Janet Albers, Priyanka Bhandari, Dean Davis, Eukesh Ranjit,

Wolff-Parkinson-White syndrome is the most common form of ventricular preexcitation and affects 1-3 per 1,000 persons worldwide. Many patients remain asymptomatic throughout their lives; however, approximately half of the patients with Wolff-Parkinson-White syndrome experience symptoms secondary to tachyarrhythmias, such as paroxysmal supraventricular tachycardia, atrial fibrillation, atrial flutter, and, rarely, ventricular ... Read more >>

Cureus (Cureus)
[2020, 12(6):e8672]

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Catheter ablation of orthodromic reciprocating tachycardia and atrioventricular nodal reentrant tachycardia in children with hypoplastic left heart syndrome.

Manish Malkar, Prince J Kannankeril, Andrew E Radbill, Frank A Fish,

INTRODUCTION:Experience with catheter ablation of orthodromic reciprocating tachycardia (ORT) and atrioventricular nodal reentrant tachycardia (AVNRT) in young children with hypoplastic left heart syndrome (HLHS) is limited. We report the feasibility, safety, and outcomes of catheter ablation of ORT and AVNRT in children with HLHS. METHODS AND RESULTS:This was a retrospective ... Read more >>

J. Cardiovasc. Electrophysiol. (Journal of cardiovascular electrophysiology)
[2020, :]

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Intra-cardiac ultrasound guided approach for catheter ablation of typical right free wall accessory pathways.

Matevž Jan, Tine Prolič Kalinšek, Jernej Štublar, Matija Jelenc, Andrej Pernat, David Žižek, Nikola Lakič,

BACKGROUND:Right free wall accessory pathways (AP) are difficult to treat with catheter ablation as ablation catheter (AC) instability at the tricuspid annulus often precludes successful procedure. The aim of our study was to test a novel intra-cardiac echocardiography (ICE) guided technique for AC placement. Feasibility and success rates were observed. ... Read more >>

BMC Cardiovasc Disord (BMC cardiovascular disorders)
[2020, 20(1):210]

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Atrial fibrillation and preexcitation - A licence to kill.

R Sakthivel, Raja J Selvaraj,

Atrial fibrillation becomes a potentially lethal arrhythmia in the presence of preexcitation because the rapid ventricular activation can result in ventricular fibrillation. Fortunately, radiofrequency ablation is an effective treatment for these patients. Specific points of interest regarding this association are the mechanism of increased incidence of atrial fibrillation and the ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2020, 20(1):1-2]

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A proposed approach to the asymptomatic pediatric patient with Wolff-Parkinson-White pattern.

Henry Chubb, Scott R Ceresnak,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(1):2-7]

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Cardiac MR manifestations in two cases of PRKAG2 mutations in a Chinese family.

Jun Wang, Xinli Li, Yi Xu,

PRKAG2 syndrome (PS) is a rare autosomal dominant syndrome that mainly presents with hypertrophic cardiomyopathy, ventricular preexcitation, and conduction abnormalities. Few reports have demonstrated the morphologic manifestation of patients with PRKAG2 gene defect. This case report demonstrates the cardiac magnetic resonance characteristics of the PS patients from a Chinese family. ... Read more >>

Int J Cardiovasc Imaging (The international journal of cardiovascular imaging)
[2020, 36(8):1527-1531]

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Ultrafast intraband electron dynamics of preexcited SiO2.

Ling-Jie Lü, Xue-Bin Bian,

Intraband high-order harmonics in solids reflect the nonlinear motion of carriers in the energy bands and have important applications. In general, multiple energy bands contribute to the intraband harmonics. We reveal the interference mechanism of intraband harmonics between electrons and holes by using the k-resolved semiclassical intraband model. The model ... Read more >>

Opt Express (Optics express)
[2020, 28(9):13432-13442]

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Incidence, clinical, electrophysiological characteristics and outcomes of patients with Wolff-Parkinson-White syndrome and atrial fibrillation.

Debasis Acharya, Sameer Rane, Shomu Bohora, Hiren Kevadiya,

AIMS AND OBJECTIVES:Atrial fibrillation (AF) with preexcitation can be life threatening. Our study evaluated the incidence, clinical features, electrophysiologic characteristics and outcomes of patients presenting with AF and fast ventricular rates associated with an antegrade conducting accessory pathway. METHODS:Hospital data of patients who had undergone electrophysiology study and radiofrequency ablation ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2020, 20(1):3-7]

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Management of asymptomatic ventricular preexcitation.

Shaun Mohan, Seshadri Balaji,

An incidental discovery of Wolff Parkinson White (WPW) pattern on the electrocardiogram (ECG) is not an infrequent finding facing the physician. Most patients discovered incidentally are asymptomatic and it is hard to justify further management of such patients given the time-honored adage to "first do no harm." However, this finding ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2019, 19(6):232-239]

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Identification, clinical manifestation and structural mechanisms of mutations in AMPK associated cardiac glycogen storage disease.

Dan Hu, Dong Hu, Liwen Liu, Daniel Barr, Yang Liu, Norma Balderrabano-Saucedo, Bo Wang, Feng Zhu, Yumei Xue, Shulin Wu, BaoLiang Song, Heather McManus, Katherine Murphy, Katherine Loes, Arnon Adler, Lorenzo Monserrat, Charles Antzelevitch, Michael H Gollob, Perry M Elliott, Hector Barajas-Martinez,

BACKGROUND:Although 21 causative mutations have been associated with PRKAG2 syndrome, our understanding of the syndrome remains incomplete. The aim of this project is to further investigate its unique genetic background, clinical manifestations, and underlying structural changes. METHODS:We recruited 885 hypertrophic cardiomyopathy (HCM) probands and their families internationally. Targeted next-generation sequencing ... Read more >>

EBioMedicine (EBioMedicine)
[2020, 54:102723]

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