Michael A. Brock, John‐Anthony Coppola, Jana Reid, Diego Moguillansky

Congenital Heart Disease, Vol.14, No.6, pp. 924-930, 2019, DOI:10.1111/chd.12857

Abstract Objective: The primary aim of our work is to determine the incidence of atrial fibrillation following cardiac surgery in adults with congenital heart disease. Secondary aims include identifying risk factors predictive of developing early postoperative atrial fibrillation and morbidities associated with early postoperative atrial fibrillation.
Design: Retrospective analysis.
Setting: Single center, quaternary care children’s hospital.
Patients: This review included patients at least 18 years of age with known congenital heart disease who underwent cardiac surgery requiring a median sternotomy at our congenital heart center from January 1, 2012 to December 31, 2016.
Interventions: None.
Outcome Measures: The primary outcome was early… More >

Benjamin Zielonka¹, Yuli Y. Kim^2,3, Gregory E. Supple², Sara L. Partington^2,3, Emily S. Ruckdeschel^2,3, Francis E. Marchlinski², David S. Frankel²

Congenital Heart Disease, Vol.14, No.6, pp. 931-938, 2019, DOI:10.1111/chd.12833

Abstract Objective: Atrial arrhythmias and atrioventricular valve regurgitation (AVVR) are common causes of morbidity among adults with congenital heart disease (ACHD). The impact of rhythm control on AVVR in this population is unknown. We sought to determine whether a rhythm control strategy is associated with greater freedom from AV valve surgery than a rate control strategy.
Design: Patients evaluated by both ACHD and electrophysiology specialists at a single academic center were screened for atrial arrhythmias and at least moderate‐severe AVVR. Clinical and electrographic data were abstracted. All echocardiograms were in‐ terpreted by a single echocardiographer blinded to treatment… More >

Subeer K. Wadia¹, Gentian Lluri¹, Jamil A. Aboulhosn¹, Hillel Laks², Reshma M. Biniwale², Glen S. Van Arsdell², Daniel S. Levi³, Morris M. Salem³, Kevin M. Shannon^1,3, Jeremy P. Moore^1,3

Congenital Heart Disease, Vol.14, No.5, pp. 838-845, 2019, DOI:10.1111/chd.12818

Abstract Objective: We examined the atrial tachyarrhythmia (AT) burden among patients with congenital heart disease (CHD) following transcatheter (TC‐) or surgical (S‐) pulmo‐ nary valve replacement (PVR).
Design/Setting: This was a retrospective observational study of patients who under‐ went PVR from 2010 to 2016 at UCLA Medical Center.
Patients: Patients of all ages who had prior surgical repair for CHD were included. Patients with a history of congenitally corrected transposition of the great arteries, underwent a hybrid PVR procedure, or had permanent atrial fibrillation (AF) without a concomitant ablation were excluded.
Outcome Measures: The primary outcome was a time‐to‐event analysis… More >

Anudeep K. Dodeja¹, Courtney Thomas¹, Curt J. Daniels^1,2, Naomi Kertesz^1,2, Anna Kamp^1,2

Congenital Heart Disease, Vol.14, No.5, pp. 745-751, 2019, DOI:10.1111/chd.12815

Abstract Background: Rhythm disorders are the leading cause of morbidity and mortality in adults with congenital heart disease (ACHD). Infrequent or asymptomatic arrhyth‐ mias may not be detected by routine monitoring. Implantable loop recorders (ILRs), such as the Reveal LINQ^TM, have been useful in long‐term monitoring for arrhythmias in adults with cryptogenic stroke.
Objective: We propose the Reveal LINQ^TM will detect arrhythmias, not documented by other monitoring modalities, resulting in change in management in ACHD patients.
Methods: This is a single center retrospective review of Reveal LINQ^TM use in ACHD patients from 2014‐2017. Medical records were reviewed to determine cardiac… More >

Karen E. Schultz¹, George K. Lui^1,2, Doff B. McElhinney¹, Jin Long³, Vidhya Balasubramanian³, Charlotte Sakarovitch³, Susan M. Fernandes^1,2, Anne M. Dubin¹, Ian S. Rogers^1,2, Anitra W. Romfh^1,2, Kara S. Motonaga¹, Mohan N. Viswanathan², Scott R. Ceresnak¹

Congenital Heart Disease, Vol.14, No.3, pp. 410-418, 2019, DOI:10.1111/chd.12736

Abstract Background: Arrhythmias are a leading cause of death in adults with congenital heart disease (ACHD). While 24‐48‐hour monitors are often used to assess arrhythmia burden, extended continuous ambulatory rhythm monitors (ECAM) can record 2 weeks of data. The utility of this device and the arrhythmia burden identified beyond 48‐hour monitoring have not been evaluated in the ACHD population. Additionally, the impact of ECAM has not been studied to determine management recommendations.
Objective: To address the preliminary question, we hypothesized that clinically sig‐ nificant arrhythmias would be detected on ECAM beyond 48 hours and this would lead to… More >

Charlotte A. Houck^1,2, Reinder Evertz³, Christophe P. Teuwen¹, Jolien W. Roos‐Hesselink¹, Janneke A. E. Kammeraad⁴, Anthonie L. Duijnhouwer³, Natasja M. S. de Groot³, Ad J. J. C. Bogers²

Congenital Heart Disease, Vol.14, No.2, pp. 280-287, 2019, DOI:10.1111/chd.12724

Abstract Objective: Outcomes after surgical repair of complete atrioventricular septal defect (cAVSD) have improved. With advancing age, the risk of development of dysrhythmias may increase. The aims of this study were to (1) examine development of sinus node dysfunction (SND), atrial and ventricular tachyarrhythmias, and (2) study progression of atrioventricular conduction abnormalities in young adult patients with repaired cAVSD.
Study design: In this retrospective multicenter study, 74 patients (68% female) with a cAVSD repaired in childhood were included. Patients’ medical files were evaluated for occurrence of SND, atrioventricular conduction block (AVB), atrial and ventricular tachyarrhythmias.
Results: Median age at… More >

Matthew Lewis¹, William Whang², Angelo Biviano², Kathleen Hickey², Hasan Garan², Marlon Rosenbaum¹

Congenital Heart Disease, Vol.14, No.2, pp. 207-212, 2019, DOI:10.1111/chd.12695

Abstract Background: Catheter ablation is commonly performed to treat atrial arrhythmias in adult congenital heart disease (ACHD). Despite the frequency of ablations in the ACHD population, predictors of recurrence remain poorly defined.
Objective: We sought to determine predictors of arrhythmia recurrence in ACHD patients following catheter ablation for atrial arrhythmias.
Methods: We performed a retrospective study of all catheter ablations for atrial arrhythmias performed in ACHD patients between January 12, 2005 and February 11, 2015 at our institution. Prespecified exposures of interest and time from ablation to recurrence were determined via chart review.
Results: Among 124 patients (mean age: 45… More >

Zhong Liu^1,2, Xinan Wang^1,*, Kuntao Lu¹, David Su³

CMC-Computers, Materials & Continua, Vol.60, No.2, pp. 497-509, 2019, DOI:10.32604/cmc.2019.04882

Abstract ECG signal is of great importance in the clinical diagnosis of various heart diseases. The abnormal origin or conduction of excitation is the electrophysiological mechanism leading to arrhythmia, but the type and frequency of arrhythmia is an important indicator reflecting the stability of cardiac electrical activity. In clinical practice, arrhythmic signals can be classified according to the origin of excitation, the frequency of excitation, or the transmission of excitation. Traditional heart disease diagnosis depends on doctors, and it is influenced by doctors' professional skills and the department's specialty. ECG signal has the characteristics of weak More >

N. Vijaya^a,*, Y. Hari Krishna^a , K. Kalyani^b, G.V.R. Reddy^a

Frontiers in Heat and Mass Transfer, Vol.11, pp. 1-11, 2018, DOI:10.5098/hmt.11.19

Abstract The present paper deals with the thermo physical properties of a Casson fluid through an oscillating vertical wall embedded through porous medium under the influence transverse magnetic field, radiation, constant heat source and first order chemical reaction. The radiative heat loss is modelled by using Rosseland approximation. Similarity variables were used to convert the partial differential equations into ordinary differential equation. The transformed ordinary differential equations are solved numerically using Runge - Kutta -Fehlberg method with shooting technique. In order to get perfect perception of the flow pattern we obtain the graphs of axial velocity, More >

Benjamin M. Moore^1,2, Rachael L. Cordina^1,2, Mark A. McGuire^1,2, David S. Celermajer^1,2

Congenital Heart Disease, Vol.13, No.6, pp. 944-951, 2018, DOI:10.1111/chd.12657

Abstract Objective: Amiodarone is a highly effective antiarrhythmic therapy, however its tox‐ icity profile often limits treatment. This is particularly relevant in adults with congeni‐ tal heart disease (CHD), who are often young and in whom other antiarrhythmic agents commonly fail or are contraindicated. We sought to determine incidence and predictors of adverse effects caused by amiodarone in adult CHD (ACHD).
Design: A retrospective review of patients with moderate to complex ACHD treated with amiodarone at our center between 2000 and 2017 was performed. Incidence and predictors of adverse effects were described. Efficacy of amiodarone therapy in controlling… More >