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  • Open Access

    ARTICLE

    Improvements in Weather Forecasting Technique Using Cognitive Internet of Things

    Kaushlendra Yadav*, Anuj Singh, Arvind Kumar Tiwari

    Computer Systems Science and Engineering, Vol.46, No.3, pp. 3767-3782, 2023, DOI:10.32604/csse.2023.033991

    Abstract Forecasting the weather is a challenging task for human beings because of the unpredictable nature of the climate. However, effective forecasting is vital for the general growth of a country due to the significance of weather forecasting in science and technology. The primary motivation behind this work is to achieve a higher level of forecasting accuracy to avoid any damage. Currently, most weather forecasting work is based on initially observed numerical weather data that cannot fully cover the changing essence of the atmosphere. In this work, sensors are used to collect real-time data for a particular location to capture the… More >

  • Open Access

    ARTICLE

    Predictors of Health-Related Quality of Life in Children with Cyanotic Heart Disease Who Underwent Palliative and Total Repair

    Jutarat Tanasansuttiporn1, Maliwan Oofuvong1,*, Wirat Wasinwong1, Voravit Chittithavorn2, Pongsanae Duangpakdee2, Jirayut Jarutach3, Qistina Yunuswangsa1

    Congenital Heart Disease, Vol.17, No.3, pp. 245-267, 2022, DOI:10.32604/chd.2022.021778

    Abstract Background: Studies on predictors of health-related quality of life (HRQOL) in pediatric patients with cyanotic heart disease who are waiting for the next stage and those who have undergone total repair are scarce. Therefore, we aimed to identify such predictors in children who received the modified Blalock–Taussig shunt (MBTS) and those who underwent total repair. Methods: In this historical cohort and concurrent follow-up study, data of children who underwent MBTS at the age of 0–3 years between January 2005 and December 2016 at a super-tertiary care hospital in Southern Thailand were obtained. Children who were alive in December 2017 were… More > Graphic Abstract

    Predictors of Health-Related Quality of Life in Children with Cyanotic Heart Disease Who Underwent Palliative and Total Repair

  • Open Access

    ARTICLE

    Predictors and Effects of Persistent Hypertension after Successful Treatment of Coarctation of the Aorta

    Mohamed Saber Hafez*, Alaa Roushdy, Dina Ezzeldin

    Congenital Heart Disease, Vol.17, No.3, pp. 325-333, 2022, DOI:10.32604/chd.2022.019025

    Abstract Background: Coarctation of the aorta is a congenital heart disease that sometimes remains clinically silent until adulthood, usually presenting with arterial hypertension. It is well known that after coarctation treatment, many patients remain hypertensive despite successful repair. In this study we approached the predictors and effects of residual hypertension after successful coarctation therapy. Methods: It was a cross sectional observational study involving 50 patients who underwent Coarctation repair/angioplasty in Ain Shams university hospitals. We divided the patients into two groups (hypertensive and normotensive) and we studied their demographic data (e.g., age, gender, age at first repair, follow up period, etc.)… More >

  • Open Access

    ARTICLE

    Hypertension and Heart Failure as Predictors of Mortality in an Adult Congenital Heart Defect Population

    Cheryl Raskind-Hood1,*, Kashaine A. Gray2,3, Jayne Morgan3, Wendy M. Book4,*

    Congenital Heart Disease, Vol.16, No.4, pp. 333-355, 2021, DOI:10.32604/CHD.2021.014384

    Abstract Early intervention to prevent premature mortality is vital for adults with congenital heart defects (CHD). Anatomic complexity and comorbid conditions are thought to contribute to CHD mortality. Since hypertension (HTN) and heart failure (HF) are the comorbid conditions among the most prevalent causes of death in the United States, and commonly accompany CHD, it is crucial to evaluate whether they are reliable predictors of mortality for adults with CHD (ACHD) independent of anatomic CHD complexity. A retrospective cross-sectional analysis of ACHD, aged 18–64, with concomitant HTN and/or HF and at least one health care encounter during 2008–2010 were assessed. Of… More >

  • Open Access

    ARTICLE

    Analysis and Application of the Spatio-Temporal Feature in Wind Power Prediction

    Ruiguo Yu1,2, Zhiqiang Liu1,2, Jianrong Wang1,3, Mankun Zhao1,2, Jie Gao1,3, Mei Yu1,3,*

    Computer Systems Science and Engineering, Vol.33, No.4, pp. 267-274, 2018, DOI:10.32604/csse.2018.33.267

    Abstract The spatio-temporal feature with historical wind power information and spatial information can effectively improve the accuracy of wind power prediction, but the role of the spatio-temporal feature has not yet been fully discovered. This paper investigates the variance of the spatio-temporal feature. Based on this, a hybrid machine learning method for wind power prediction is designed. First, the training set is divided into several groups according to the variance of the input pattern, and then each group is used to train one or more predictors respectively. Multiple machine learning methods, such as the support vector machine regression and the decision… More >

  • Open Access

    ARTICLE

    Predictors of extracorporeal membrane oxygenation support after surgery for adult congenital heart disease in children’s hospitals

    Stephen J. Dolgner1,2,3, Eric V. Krieger1,3, Jacob Wilkes4, Susan L. Bratton5, Ravi R. Thiagarajan6,7, Cindy S. Barrett8, Titus Chan1,2,9

    Congenital Heart Disease, Vol.14, No.4, pp. 559-570, 2019, DOI:10.1111/chd.12758

    Abstract Objective: Adult congenital heart disease (ACHD) patients who undergo cardiac surgery are at risk for poor outcomes, including extracorporeal membrane oxygenation support (ECMO) and death. Prior studies have demonstrated risk factors for mortality, but have not fully examined risk factors for ECMO or death without ECMO (DWE). We sought to identify risk factors for ECMO and DWE in adults undergoing congenital heart surgery in tertiary care children’s hospitals.
    Design: All adults (≥18 years) undergoing congenital heart surgery in the Pediatric Health Information System (PHIS) database between 2003 and 2014 were included. Patients were classified into three groups: ECMO‐free survival, requiring… More >

  • Open Access

    ARTICLE

    Exercise testing and spirometry as predictors of mortality in congenital heart disease: Contrasting Fontan physiology with repaired tetralogy of Fallot

    Keri M. Shafer1,2, Alexander R. Opotowsky1,2, Jonathan Rhodes1

    Congenital Heart Disease, Vol.13, No.6, pp. 903-910, 2018, DOI:10.1111/chd.12661

    Abstract Objective: Risk prediction using cardiopulmonary exercise testing (CPET) in complex congenital heart disease tends to either focus on single diagnoses or complete cohorts. We aimed to evaluate patients with two distinct anatomies cared for at a single institution over the same time period to determine CPET variables associated with mortality.
    Design: All Fontan and tetralogy of Fallot (TOF) subjects with CPET between November 1, 2002 and December 31, 2014 and subsequently died were identified (cases). Cases were matched 1:3 to controls with similar age, underlying anatomy and timing of exercise test.
    Results: Of the 42 cases, 27 had a Fontan… More >

  • Open Access

    ARTICLE

    Predictors of inadequate initial echocardiography in suspected Kawasaki disease: Criteria for sedation

    Raymond P. Lorenzoni III1, Jaeun Choi2, Nadine F. Choueiter3, Iona M. Munjal1, Chhavi Katyal4, Kenan W. D. Stern3

    Congenital Heart Disease, Vol.13, No.3, pp. 470-475, 2018, DOI:10.1111/chd.12598

    Abstract Objective: Kawasaki disease is the primary cause of acquired pediatric heart disease in developed nations. Timely diagnosis of Kawasaki disease incorporates transthoracic echocardiography for visualization of the coronary arteries. Sedation improves this visualization, but not without risks and resource utilization. To identify potential sedation criteria for suspected Kawasaki disease, we analyzed factors associated with diagnostically inadequate initial transthoracic echocardiography performed without sedation.
    Design: This retrospective review of patients < 18 years old undergoing initial transthoracic echocardiography for the inpatient evaluation of suspected Kawasaki disease from 2009 to 2015 occurred at a medium-sized urban children’s hospital. The primary outcome was diagnostically… More >

  • Open Access

    ARTICLE

    Fetal heart size measurements as new predictors of homozygous α-thalassemia-1 in mid-pregnancy

    Xinyan Li1, Xiaoxia Qiu1, Huan Huang1, Yili Zhao2, Xueqin Li1, Meng Li1, Xiaoxian Tian1

    Congenital Heart Disease, Vol.13, No.2, pp. 282-287, 2018, DOI:10.1111/chd.12568

    Abstract Objective: To evaluate the efficacy of using fetal heart size measurements derived from axial echocardiography to predict homozygous α-thalassemia-1.
    Design: Prospective diagnostic study.
    Setting: The carrier rate of α-thalassemia-1 (–/αα) in China’s Guangxi Zhuang Autonomous Region is approximately 15%. If both parents are carriers, the risk of homozygous a-thalassemia-1 in one pregnancy is 25%.
    Patients: Singleton mid-pregnancies at risk of homozygous α-thalassemia-1 were enrolled.
    Outcome Measures: Fetal heart measurements, including heart diameter (HD), heart length (HL), heart circumference (HC), and heart area (HA), were measured. The z-scores for these heart parameters were then calculated separately based on previously constructed z-score… More >

  • Open Access

    ARTICLE

    Predictors and rates of recurrence of atrial arrhythmias following catheter ablation in adults with congenital heart disease

    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 years)… More >

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