Omer Berat Sezer^*, Ahmet Murat Ozbayoglu

Intelligent Automation & Soft Computing, Vol.26, No.2, pp. 323-334, 2020, DOI:10.31209/2018.100000065

Abstract Even though computational intelligence techniques have been extensively utilized in financial trading systems, almost all developed models use the time series data for price prediction or identifying buy-sell points. However, in this study we decided to use 2-D stock bar chart images directly without introducing any additional time series associated with the underlying stock. We propose a novel algorithmic trading model CNN-BI (Convolutional Neural Network with Bar Images) using a 2-D Convolutional Neural Network. We generated 2-D images of sliding windows of 30-day bar charts for Dow 30 stocks and trained a deep Convolutional Neural More >

Yongkang Zheng^1,2,*, Chao Yan¹

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.3, pp. 637-650, 2020, DOI:10.32604/fdmp.2020.09694 - 25 May 2020

Abstract The flow field inside the combustor of a scramjet is highly complicated and the related turbulent Prandtl and Schmidt numbers have a significant impact on the effective numerical prediction of such dynamics. As in many cases researchers set these parameters on the basis of purely empirical laws, assessing their impact (via parametric numerical simulations) is a subject of great importance. In the present work, in particular, two test cases with different characteristics are selected for further evaluation of the role played by these non-dimensional numbers: Burrows-Kurkov case and DLR case. The numerical results indicate that More >

Zhong Liu, Xin’an Wang, Kuntao Lu, David Su

CMC-Computers, Materials & Continua, Vol.63, No.2, pp. 1079-1079, 2020, DOI:10.32604/cmc.2020.04882

Abstract This article has no abstract. More >

Varun Aggarwal^1,2, Kristen Sexson-Tejtal¹, Wilson Lam¹, Santiago O. Valdes¹, Caridad M. de la Uz¹, Jeffrey J. Kim¹, Christina Y. Miyake¹

Congenital Heart Disease, Vol.14, No.6, pp. 1032-1036, 2019, DOI:10.1111/chd.12864

Abstract Objective: Based on 2017 guidelines, participation in competitive sports with prior history of Kawasaki Disease (KD) requires those with coronary artery aneurysms (CAA) z score ≥ 5 to undergo evaluation for evidence of inducible ischemia or arrhythmias. The use of exercise stress testing (EST) to evaluate arrhythmias among KD patients has never been reported. This retrospective single-center case series study sought to describe the presence of inducible arrhythmias during EST in KD patients with or without CAA.
Methods: Single-center retrospective review of medical records of patients diagnosed with KD between 1989-2015 at Texas Children’s Hospital, Houston, Texas… More >

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 >