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Background: Premature ventricular complexes (PVCs) are generally benign in healthy children, but in some cases, a persistent high PVC burden may be observed, potentially related to ventricular tachycardia or left ventricular dysfunction. This study explores the natural history of PVCs in children with structurally normal hearts and identifies factors associated with unresolved PVCs.
Methods: We retrospectively analyzed demographic and clinical data from children < 18 years of age with confirmed PVCs, including 12-lead electrocardiogram (ECG) and 24-h Holter monitoring data.
Results: A total of 113 children (mean age 8.35 ± 5.28 years, 71 males [62.8%]) were included. The mean follow-up duration was 44.9 ± 44.8 months. PVC burden at initial diagnosis was 13.54 ± 12.53%. During follow-up, 44.2% of patients showed complete PVC improvement, 13.3% partial improvement, and 42.5% persistent. Older age at the initial onset and female sex were associated with unresolved PVCs (per 1-year increase: OR 1.09, 95% CI: 1.01-1.18, P = 0.027; females: OR 2.25, 95% CI: 1.00-5.06, P = 0.050).
Conclusion: Older age at onset and female sex were predictors of unresolved PVCs in healthy children, highlighting the need for tailored monitoring for these subgroups, despite the generally favorable prognosis of PVCs.
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http://dx.doi.org/10.1186/s12887-025-05516-9 | DOI Listing |
Arch Gynecol Obstet
September 2025
The First Affiliated Hospital of Soochow University, No. 899 Pinghai Street, Suzhou, Jiangsu, China.
Objective: The study utilized non-invasive myocardial work indices to investigate myocardial injury in infants born to mothers with severe preeclampsia (SPE) and to explore the duration of this myocardial damage during the neonatal period.
Methods: This prospective study included 34 preterm infants born to mothers with SPE and 28 preterm infants born to mothers without severe pregnancy complications (termed "controls"). Echocardiography was performed in infants within 24 h of birth, then again at 48-72 h and 14-28 days, to obtain echocardiographic parameters.
Int J Cardiol
September 2025
Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China. Electronic address:
Background And Aims: Previous cardiac implantable electronic devices (CIEDs) automatically monitored, diagnosed, and stored atrial or ventricular tachyarrhythmias as intracardiac electrograms (EGMs). Abbott's new-generation CIEDs offer pre-event EGM storage (Pre-EGM), recording cardiac electrical activity before arrhythmic events. This study determines whether Pre-EGM provides additional diagnostic information for arrhythmic events.
View Article and Find Full Text PDFEur Heart J Case Rep
September 2025
Clinical Electrophysiology, St. Joseph's Heart Rhythm Center, Anny Jagiellonki 17, 35-623 Rzeszów, Poland.
Background: Premature ventricular contractions (PVCs) originating from the infundibular region of the right ventricular outflow tract (RVOT) may be challenging to ablate due to thin myocardial wall and proximity to the coronary arteries in this region. In such anatomically sensitive regions, the use of radiofrequency (RF) energy may carry a risk of collateral injury or prove ineffective. We present a case report describing successful ablation of infundibular PVCs using pulsed field ablation (PFA).
View Article and Find Full Text PDFFront Med (Lausanne)
August 2025
Universidad Internacional Iberoamericana, Arecibo, PR, United States.
Electrocardiogram (ECG) classification plays a critical role in early detection and trocardiogram (ECG) classification plays a critical role in early detection and monitoring cardiovascular diseases. This study presents a Transformer-based deep learning framework for automated ECG classification, integrating advanced preprocessing, feature selection, and dimensionality reduction techniques to improve model performance. The pipeline begins with signal preprocessing, where raw ECG data are denoised, normalized, and relabeled for compatibility with attention-based architectures.
View Article and Find Full Text PDFFront Physiol
August 2025
Department of Electrophysiology, King Abdulaziz Cardiac Center, King Abdullah International Medical Research Center (KAIMRC), MNGHA, King Abdulaziz Medical City, Riyadh, Saudi Arabia.
Background: Mitral valve prolapse (MVP) is a common condition, typically benign, but in a small subset of patients, it may lead to life-threatening arrhythmias and sudden cardiac death (SCD). This arrhythmogenic MVP phenotype is often associated with bileaflet prolapse, mitral annular disjunction (MAD), and myocardial fibrosis identified via late gadolinium enhancement (LGE) on cardiac MRI.
Case Summary: Our patient is a 49-year-old man presented with monomorphic ventricular tachycardia and near-syncope.