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  • Open Access

    ARTICLE

    Short-term Forecasting of Air Passengers Based on the Hybrid Rough Set and the Double Exponential Smoothing Model

    Haresh Kumar Sharma, Kriti Kumari, Samarjit Kar

    Intelligent Automation & Soft Computing, Vol.25, No.1, pp. 1-14, 2019, DOI:10.31209/2018.100000036

    Abstract This article focuses on the use of the rough set theory in modeling of time series forecasting. In this paper, we have used the double exponential smoothing (DES) model for forecasting. The classical DES model has been improved by using the rough set technique. The improved double exponential smoothing (IDES) method can be used for the time series data without any statistical assumptions. The proposed method is applied on tourism demand of the air transportation passenger data set in Australia and the results are compared with the classical DES model. It has been observed that More >

  • Open Access

    ARTICLE

    Alternative approach to pediatric cardiac quality assessment for low‐volume centers

    Amy E. Delaney1, Nina M. Dadlez2, Audrey C. Marshall2

    Congenital Heart Disease, Vol.14, No.4, pp. 665-670, 2019, DOI:10.1111/chd.12821

    Abstract Background: In pediatric cardiac care, many centers participate in multiple, national, domain‐specific registries, as a major component of their quality assessment and im‐ provement efforts. Small cardiac programs, whose clinical activities and scale may not be well‐suited to this approach, need alternative methods to assess and track quality.
    Methods: We conceived of and piloted a rapid‐approach cardiac quality assessment, intended to encompass multiple aspects of the service line, in a low‐volume program. The assessment incorporated previously identified measures, drawn from multiple sources, and ultimately relied on retrospective chart review.
    Results: A collaborative, multidisciplinary team formed and came to… More >

  • Open Access

    ARTICLE

    Fate of the Fontan connection: Mechanisms of stenosis and management

    Donald J. Hagler1,2, William R. Miranda2, Brielle J. Haggerty1, Jason H. Anderson1, Jonathan N. Johnson1, Frank Cetta1,2, Sameh M. Said1,3, Nathaniel W. Taggart1

    Congenital Heart Disease, Vol.14, No.4, pp. 571-581, 2019, DOI:10.1111/chd.12757

    Abstract Background: Stenosis of the venous connections and conduits is a well‐known late complication of the Fontan procedure. Currently, data on the outcomes of percuta‐ neous intervention for the treatment of extra‐ or intracardiac conduits and lateral tunnel baffles obstruction are limited. In an attempt to better define the nature and severity of the stenosis and the results of catheter interventional management, we reviewed Fontan patients with obstructed extra‐ or intracardiac conduits and lateral tunnel baffles.
    Methods: Retrospective review of all Fontan patients who had cardiac catheteriza‐ tion from January 2002 to October 2018 was performed. Hemodynamic and… More >

  • Open Access

    ARTICLE

    The incidence of arrhythmias during exercise stress tests among children with Kawasaki disease: A single-center case series

    Varun Aggarwal1,2, 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 >

  • Open Access

    ARTICLE

    Echocardiography vs cardiac magnetic resonance imaging assessment of the systemic right ventricle for patients with d-transposition of the great arteries status post atrial switch

    Margaret M. Samyn1,2, Ke Yan1, Conor Masterson3, Benjamin H. Goot1,2, David Saudek1,2, Julie Lavoie2, Aaron Kinney2, Mary Krolikowski1, Kan Hor4,5, Scott Cohen1,2

    Congenital Heart Disease, Vol.14, No.6, pp. 1138-1148, 2019, DOI:10.1111/chd.12861

    Abstract Objective: Patients with Dextro-transposition of the great arteries status post atrial switch (dTGA s/p atrial switch) are “at-risk” for systemic right ventricular (RV) dysfunction. Due to complex RV geometry, echocardiography (Echo) does not allow accurate determination of ejection fraction (EF), but cardiac magnetic resonance imaging (CMR) allows quantitative right ventricular assessment. Measures of ventricular deformation may be precursors to global ventricular dysfunction. The primary aim of this study was to characterize imaging and clinical findings for adult patients with dTGA s/p atrial switch.
    Design: This was a retrospective cohort study of patients with dTGA s/p atrial switch… More >

  • Open Access

    ARTICLE

    Outcomes in adults with congenital heart disease and heterotaxy syndrome: A single‐center experience

    Christopher R. Broda, Katherine B. Salciccioli, Keila N. Lopez, Peter R. Ermis, Douglas S. Moodie, Heather A. Dickerson

    Congenital Heart Disease, Vol.14, No.6, pp. 885-894, 2019, DOI:10.1111/chd.12856

    Abstract Background: Heterotaxy syndrome (HS) is a condition in which the thoracoabdominal organs demonstrate an abnormal lateral arrangement and is often associated with con‐ genital heart disease (CHD). Little is known about the adult HS population with CHD.
    Objective: To describe the outcomes and sociodemographics of the adult CHD popu‐ lation with HS.
    Methods: Records of patients 18 years of age or older with diagnoses of both CHD and HS at Texas Children's Hospital from 1964 to 2018 were reviewed.
    Results: Sixty‐two patients metinclusion criteria.Median agewas 22.7 [IQR19.6‐30.0] years; 26 (42%) were female; and 13 (21%) of patients had a… More >

  • Open Access

    ARTICLE

    Comprehensive left ventricular myocardial deformation assessment in children with Kawasaki disease

    Aura A. Sanchez1,2, Sara K. Sexson Tejtel1, Myriam E. Almeida‐Jones1,3, Douglas K. Feagin1, Carolyn A. Altman1, Ricardo H. Pignatelli1

    Congenital Heart Disease, Vol.14, No.6, pp. 1024-1031, 2019, DOI:10.1111/chd.12787

    Abstract Objective: Children with Kawasaki disease (KD) with persistent coronary artery aneurysms (CAAs) can develop chronic vasculopathy and subsequent myocardial ischemia. Early detection of this process is challenging. Myocardial deformation anal‐ ysis can detect early alterations in myocardial performance. We aim to determine whether there are differences in myocardial deformation between KD patients with and without CAAs.
    Design: This is a cross‐sectional study of 123 echocardiograms performed on 103 children with KD. Myocardial deformation was measured with two‐dimensional speckle tracking (2DSTE). The echocardiograms were divided into groups according to the KD phase in which they were performed: acute,… More >

  • Open Access

    ARTICLE

    Utilization of echocardiography in Ehlers‐Danlos syndrome

    Kristina K. Rauser‐Foltz1, Lois J. Starr2, Anji T. Yetman1

    Congenital Heart Disease, Vol.14, No.5, pp. 864-867, 2019, DOI:10.1111/chd.12824

    Abstract Objectives: This study assessed the frequency and utility of echocardiographic examination in patients with all forms of Ehlers‐Danlos syndrome and sought to iden‐ tify clinical variables associated with an abnormal echocardiogram.
    Design/setting: This was a retrospective study of all patients carrying a diagnosis of Ehlers‐Danlos syndrome of any type who were evaluated by a pediatrician or pediatric subspecialist at a single tertiary medical center with an affiliated children’s hospital during the period January 2013 to December 2018.
    Patients: Chart review was performed on all patients carrying a diagnosis of Ehlers‐ Danlos syndrome in the electronic medical record.
    Outcome Measures:More >

  • Open Access

    ARTICLE

    Echocardiographic assessment of single‐ventricle diastolic function and its correlation to short‐term outcomes after the Fontan operation

    Erin K. Davis1, Salil Ginde1, Jessica Stelter2, Peter Frommelt1, Garick D. Hill3

    Congenital Heart Disease, Vol.14, No.5, pp. 720-725, 2019, DOI:10.1111/chd.12814

    Abstract Background/Hypothesis/Objectives: Postoperative complications after the Fontan operation for single ventricle heart disease are common and include persistent pleural drainage and prolonged length of hospital stay (LOS). Diastolic ventricular dysfunction may increase risk for postoperative complications by raising central venous pressures. We sought to determine the relationship between preoperative echocardiographic measurements of diastolic function, including myocardial deformation imaging, on (a) preoperative invasive catheterization measurements and (b) postoperative outcomes after the Fontan procedure.
    Design/Methods: All patients that underwent Fontan procedure from 2011 to 2017 were included. Echocardiograms performed within 6 months prior to Fontan operation were evaluated. Measurements of… More >

  • Open Access

    ARTICLE

    Small atrial septal defects are associated with psychiatric diagnoses, emotional distress, and lower educational levels

    Sebastian Udholm1, Camilla Nyboe1, Thomas Meinertz Dantoft2, Torben Jørgensen2,3,4, Charlotte U. Rask5, Vibeke E. Hjortdal1

    Congenital Heart Disease, Vol.14, No.5, pp. 803-810, 2019, DOI:10.1111/chd.12808

    Abstract Objective: For the first time, we wish to assess the psychiatric burden in adult patients living with small, unrepaired atrial septal defects (ASD) using register‐based data, com‐ bined with self‐reported measures on levels emotional distress and educational status.
    Design: A descriptive study using both the unique Danish registries and validated psychiatric questionnaires and scales, including: The Symptom Checklist, Whiteley‐7, and Brief Illness Perception Questionnaire.
    Patients: Adult patients with small, unrepairedASD, diagnosed between 1953 and 2011.
    Outcome Measures: Number of register‐based psychiatric diagnoses. Additionally, symptoms of anxiety, depression, somatization, health anxiety, illness perception, and levels of educational attainment compared to… More >

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