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  • Open Access

    ARTICLE

    A Meta-Learning Model for Mortality Prediction in Patients with Chronic Cardiovascular Disease

    Sam Rahimzadeh Holagh1, Bugao Xu1,2,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 2383-2399, 2025, DOI:10.32604/cmes.2025.072259 - 26 November 2025

    Abstract Cardiovascular diseases (CVD) remain a leading cause of mortality worldwide, highlighting the need for precise risk assessment tools to support clinical decision-making. This study introduces a meta-learning model for predicting mortality risk in patients with CVD, classifying them into high-risk and low-risk groups. Data were collected from 868 patients at Tabriz Heart Hospital (THH) in Iran, along with two open-access datasets—the Cleveland Heart Disease (CHD) and Faisalabad Institute of Cardiology (FIC) datasets. Data preprocessing involved class balancing via the Synthetic Minority Over-Sampling Technique (SMOTE). Each dataset was then split into training and test sets, and… More >

  • Open Access

    ARTICLE

    Impact of COVID-19 care reorganization on the prognosis of patients with bladder urothelial carcinoma: a multicentric retrospective study

    Marie Chaumel1, Nicolas Brichart2, Franck Bruyère1, Ali Bourgi1,*

    Canadian Journal of Urology, Vol.32, No.4, pp. 359-366, 2025, DOI:10.32604/cju.2025.066470 - 29 August 2025

    Abstract Background: The COVID-19 pandemic disrupted healthcare systems globally, raising concerns about delayed cancer diagnosis and treatment. In France, transurethral resection of bladder tumors (TURBT) was prioritized in national urology guidelines to ensure the timely management of urothelial carcinoma. This study aimed to assess the impact of care reorganization on tumor staging, recurrence, palliative care, and mortality in bladder cancer patients from the pre-pandemic through late-pandemic periods. Methods: We conducted a retrospective multicenter study including all patients who underwent TURBT with histologically confirmed urothelial carcinoma between April and December of 2019 (pre-pandemic), 2020 (early pandemic), 2021… More >

  • Open Access

    ARTICLE

    Public Health Implications of Road Construction and Traffic Congestion in a Hydrocarbon-Polluted Environment: An Assessment of Air and Noise Pollution

    Idongesit Sunday Ambrose1, Sunday Edet Etuk2, Okechukwu Ebuka Agbasi3,*, Ijah Ioryue Silas4, Unyime Udoette Saturday5, Eyo Edet Orok6

    Revue Internationale de Géomatique, Vol.34, pp. 335-350, 2025, DOI:10.32604/rig.2025.064552 - 13 June 2025

    Abstract Road construction and traffic congestion are increasingly recognized as major contributors to environmental and public health challenges in urban Nigeria, particularly in Rivers State. Despite growing urbanization, a gap remains in localized data on the combined effects of air and noise pollution in hydrocarbon-polluted environments. This study addresses that gap by conducting a preliminary environmental health assessment focused on the Port Harcourt Ring Road project. Air quality and noise levels were monitored in situ at 20 strategically selected locations, with five control points included for baseline comparison. Digital portable meters were used to measure concentrations of… More >

  • Open Access

    ARTICLE

    Predictors of In-Hospital Mortality and Survival Outcomes in a Paediatric Congenital Cardiac Cohort in South Africa—A 12-Year Review

    Prathap Sarma1, Palesa Mogane2,*, Katharina Vanderdonck3, Moses Kebalepile1, Palesa Motshabi Chakane4

    Congenital Heart Disease, Vol.20, No.1, pp. 41-53, 2025, DOI:10.32604/chd.2025.060382 - 18 March 2025

    Abstract Background: Congenital cardiac diseases (CCD) are common congenital birth defects that require high-risk surgery. Outcomes following congenital cardiac surgery in children living in high-income countries (HIC) have been documented, but little is known from the African continent. This study aimed to determine factors associated with perioperative mortality in patients who underwent congenital cardiac surgery at our institution. Methods: This retrospective, cross-sectional study was conducted at Charlotte Maxeke Johannesburg Academic Hospital over 12 years (2006–2017). A multivariable regression analysis was performed for the factors which had a p-value of 0.1 and less in the univariable regression analysis. A… More >

  • Open Access

    ARTICLE

    Failure to Rescue as a Quality Metric in Congenital Heart Surgeries in a High-Complexity Service Provider Institution Located in a Middle-Income Country

    Gustavo Cruz1,*, Santiago Pedroza2, Juan F. Vélez3, Jessica Largo2, Juan F. Tejada4, Jorge H. Mejía-Mantilla5

    Congenital Heart Disease, Vol.19, No.2, pp. 207-218, 2024, DOI:10.32604/chd.2024.044244 - 16 May 2024

    Abstract Background: Failure to rescue has been an effective quality metric in congenital heart surgery. Conversely, morbidity and mortality depend greatly on non-modifiable individual factors and have a weak correlation with better-quality performance. We aim to measure the complications, mortality, and risk factors in pediatric patients undergoing congenital heart surgery in a high-complexity institution located in a middle-income country and compare it with other institutions that have conducted a similar study. Methods: A retrospective observational study was conducted in a high-complexity service provider institution, in Cali, Colombia. All pediatric patients undergoing any congenital heart surgery between… More >

  • Open Access

    ARTICLE

    Impact of Atrial Septal Defect Closure on Mortality in Older Patients

    Sipawath Khamplod1,2, Yodying Kaolawanich1,2, Khemajira Karaketklang3, Nithima Ratanasit1,2,*

    Congenital Heart Disease, Vol.19, No.1, pp. 93-105, 2024, DOI:10.32604/chd.2024.048631 - 20 March 2024

    Abstract Background: Atrial septal defect (ASD) is a common form of adult congenital heart disease that can lead to long-term adverse outcomes if left untreated. Early closure of ASD has been associated with excellent outcomes and lower complication rates. However, there is limited evidence regarding the prognosis of ASD closure in older adults. This study aims to evaluate the mortality rates in older ASD patients with and without closure. Methods: A retrospective cohort study was conducted on patients aged 40 years or older with ASD between 2001 and 2017. Patients were followed up to assess all-cause… More > Graphic Abstract

    Impact of Atrial Septal Defect Closure on Mortality in Older Patients

  • Open Access

    ARTICLE

    Effect of interferon-α on COVID-19 in-hospital mortality: a large-scale propensity score-matched study

    Mohamad Amin Pourhoseingholi11,, Amirreza Raffei Javazm1,, Naghmeh Asadimanesh2, Fatemeh Shojaeian3, Mehdi Azizmohammad Looha1, Seyed Amir Ahmad Safavi-Naini1, Benyamin Mohammadzadeh1,4, Parnian Jamshidi1,4, Fatemeh Gholampoor2, Omid Yazdani2, Nadia Zameni2, Zahra Azizan2, Amirhossein Sahebkar5,6

    European Cytokine Network, Vol.34, No.2, pp. 10-19, 2023, DOI:10.1684/ecn.2023.0485

    Abstract Background: Coronavirus infection can induce the production of inflammatory cytokines leading to acute respiratory distress syndrome (ARDS) and death. It is well-established that interferons (IFNs) are essential in regulating the immune response, thus their effects of IFNs on COVID-19 patients should be subject to investigation. This study aimed to investigate the effects of IFN-α alone or in combination with remdesivir in hospitalized COVID-19 patients. Material and Methods: A multicentre, retrospective study was conducted on COVID-19 patients admitted to three hospitals in Tehran, Iran, from March 20, 2020, to March 18, 2021. The unadjusted and adjusted effects of… More >

  • Open Access

    ARTICLE

    Analysis of Risk Factors for Early Mortality in Surgical Shunt Palliation: Time for a Change?

    François-Xavier Van Vyve1, Karlien Carbonez2, Jelena Hubrechts2, Geoffroy de Beco1, Jean E. Rubay1, Mona Momeni3, Thierry Detaille4, Alain J. Poncelet1,*

    Congenital Heart Disease, Vol.18, No.5, pp. 539-550, 2023, DOI:10.32604/chd.2023.042344 - 10 November 2023

    Abstract Objectives: Over the last decade, neonatal repair has been advocated for many congenital heart diseases. However, specific subgroups of complex congenital heart disease still require temporary palliation for which both surgical and endovascular techniques are currently available. We reviewed our institutional experience with shunt palliation with an emphasis on risk factors for early mortality. Methods: This is a single-center retrospective study on 175 patients undergoing surgery for central shunt or modified Blalock-Taussig shunt. All data were extracted from a prospectively collected computerized database. We identified risk factors for early mortality by uni- and multi-variable analysis.… More >

  • Open Access

    ARTICLE

    Mortality Rates of Ventricular Septal Defect for Children in Kazakhstan: Spatio-Temporal Epidemiological Appraisal

    Akkerbez Adilbekova1,3,*, Shukhrat Marassulov1, Bakhytzhan Nurkeev1, Saken Kozhakhmetov2, Aikorkem Badambekova3

    Congenital Heart Disease, Vol.18, No.4, pp. 447-459, 2023, DOI:10.32604/chd.2023.028742 - 15 September 2023

    Abstract Objective: The aim is to study the trends in ventricular septal defect (VSD) mortality in children in Kazakhstan. Methods: The retrospective study was done for the period 2011–2020. Descriptive and analytical methods of epidemiology were applied. The universally acknowledged methodology used in sanitary statistics is used to calculate the extensive, crude, and age-specific mortality rates. Results: Kazakhstan is thought to be seeing an increase in mortality from VSDs in children. As a result, this study for the years 2011 to 2020 was conducted to retrospectively assess data from the central registration of the Bureau of National… More > Graphic Abstract

    Mortality Rates of Ventricular Septal Defect for Children in Kazakhstan: Spatio-Temporal Epidemiological Appraisal

  • Open Access

    ARTICLE

    Preoperative Fasting of More Than 14 Hours Increases the Risk of Time-to-Death after Cardiothoracic Surgery in Children: A Retrospective Cohort Study

    Laortip Rattanapittayaporn, Maliwan Oofuvong*, Jutarat Tanasansuttiporn, Thavat Chanchayanon

    Congenital Heart Disease, Vol.18, No.1, pp. 23-39, 2023, DOI:10.32604/chd.2023.026026 - 09 January 2023

    Abstract Background: Prolonged preoperative fasting can cause hypoglycemia, hyperglycemia, and intravascular volume depletion in children. We aimed to examine whether prolonged preoperative fasting is associated with in-hospital mortality and other morbidities in pediatric cardiothoracic surgery. Methods: This retrospective cohort study included children aged 0–3 years who underwent cardiac surgery between July 2014 and October 2020. The patient demographic data, surgery-related and anesthesia-related factors, and postoperative outcomes, including hypoglycemia, hyperglycemia, sepsis, length of intensive care unit stay, and in-hospital mortality, were recorded. The main exposure and outcome variables were prolonged fasting and time-to-death after surgery, respectively. The associations between… More > Graphic Abstract

    Preoperative Fasting of More Than 14 Hours Increases the Risk of Time-to-Death after Cardiothoracic Surgery in Children: A Retrospective Cohort Study

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