Fetal Factors Link Maternal Obesity to Heart Risk 11/24/25

Welcome to Cardiology Today – Recorded November 24, 2025. This episode summarizes 5 key cardiology studies on topics like lymphoproliferative disorders and antithrombin. Key takeaway: Fetal Factors Link Maternal Obesity to Heart Risk. Article Links: Article 1: Incidence and risk factors for malignancy after heart transplantation- Analysis of the UNOS Registry. (American heart journal) Article 2: Human fetal circulating factors from pregnancies complicated by obesity upregulate genes associated with pathological hypertrophy in neonatal rat cardiomyocytes. (American journal of physiology. Heart and circulatory physiology) Article 3: Cardiac Magnetic Resonance Imaging in Pediatric Heart Transplant Recipients: Correlation with Cardiopulmonary Exercise Testing. (Pediatric cardiology) Article 4: Coronary Anomalies and Early Surgical Outcomes in Transposition of the Great Arteries and Taussig-Bing Anomaly: Insights from 251 Consecutive Arterial Switch Cases. (Pediatric cardiology) Article 5: Comparison of Heparin-Based Anticoagulation in Patients With and Without High Output Chylothorax: A Pilot Study. (Pediatric cardiology) Full episode page: https://podcast.explainheart.com/podcast/fetal-factors-link-maternal-obesity-to-heart-risk-11-24-25/ Featured Articles Article 1: Incidence and risk factors for malignancy after heart transplantation- Analysis of the UNOS Registry. Journal: American heart journal PubMed Link: https://pubmed.ncbi.nlm.nih.gov/41275897 Summary: The study analyzed 50370 heart transplant recipients from the United Network for Organ Sharing Registry. This comprehensive analysis identified the incidence, demographics, and specific risk factors associated with de novo malignancy, lymphoproliferative disorders, and solid-organ malignancy subtypes. The findings provided crucial data for understanding cancer risk after heart transplantation. This information is vital for directing prevention and screening strategies in this patient population. Article 2: Human fetal circulating factors from pregnancies complicated by obesity upregulate genes associated with pathological hypertrophy in neonatal rat cardiomyocytes. Journal: American journal of physiology. Heart and circulatory physiology PubMed Link: https://pubmed.ncbi.nlm.nih.gov/41269698 Summary: This study demonstrated that human fetal circulating factors derived from pregnancies complicated by maternal obesity upregulate genes linked to pathological hypertrophy in neonatal rat cardiomyocytes. The research thus uncovered a mechanistic link where these specific factors induce cardiac changes. This finding clarifies how maternal obesity contributes to increased offspring cardiovascular risk and fetal cardiac dysfunction. Article 3: Cardiac Magnetic Resonance Imaging in Pediatric Heart Transplant Recipients: Correlation with Cardiopulmonary Exercise Testing. Journal: Pediatric cardiology PubMed Link: https://pubmed.ncbi.nlm.nih.gov/41273424 Summary: The study characterized the relationship between multiparametric cardiac magnetic resonance imaging and markers of exercise capacity in pediatric heart transplant recipients. Data from patients who underwent cardiac magnetic resonance imaging within one year of cardiopulmonary exercise testing informed how graft assessment by imaging reflects functional capacity. This analysis contributed to understanding the utility of cardiac magnetic resonance imaging for surveillance of rejection and coronary artery vasculopathy. Article 4: Coronary Anomalies and Early Surgical Outcomes in Transposition of the Great Arteries and Taussig-Bing Anomaly: Insights from 251 Consecutive Arterial Switch Cases. Journal: Pediatric cardiology PubMed Link: https://pubmed.ncbi.nlm.nih.gov/41273423 Summary: This study evaluated the impact of coronary artery anomalies on early surgical outcomes in 251 consecutive arterial switch operations performed for transposition of the great arteries and Taussig-Bing anomaly. The analysis provided a comprehensive assessment of factors influencing mortality and postoperative recovery in these complex pediatric cardiac procedures. The findings clarified the prognostic significance of these anomalies in arterial switch operation patients. Article 5: Comparison of Heparin-Based Anticoagulation in Patients With and Without High Output Chylothorax: A Pilot Study. Journal: Pediatric cardiology PubMed Link: https://pubmed.ncbi.nlm.nih.gov/41273422 Summary: This pilot study compared heparin-based anticoagulation strategies in infants and children with and without high output chylothorax after cardiac surgery. The research addressed concerns that loss of antithrombin in chylothorax may impair the therapeutic effect of antithrombin-dependent anticoagulants like unfractionated heparin and low molecular weight heparin (enoxaparin). The findings provided initial data on the management of anticoagulation in these challenging pediatric patients. Transcript Today’s date is November 24, 2025. Welcome to Cardiology Today. Here are the latest research findings. Article number one. Incidence and risk factors for malignancy after heart transplantation- Analysis of the UNOS Registry. The study analyzed 50370 heart transplant recipients from the United Network for Organ Sharing Registry. This comprehensive analysis identified the incidence, demographics, and specific risk factors associated with de novo malignancy, lymphoproliferative disorders, and solid-organ malignancy subtypes. The findings provided crucial data for understanding cancer risk after heart transplantation. This information is vital for directing prevention and screening strategies in this patient population. Article number two. Human fetal circulating factors from pregnancies complicated by obesity upregulate genes associated with pathological hypertrophy in neonatal rat cardiomyocytes. This study demonstrated that human fetal circulating factors derived from pregnancies complicated by maternal obesity upregulate genes linked to pathological hypertrophy in neonatal rat cardiomyocytes. The research thus uncovered a mechanistic link where these specific factors induce cardiac changes. This finding clarifies how maternal obesity contributes to increased offspring cardiovascular risk and fetal cardiac dysfunction. Article number three. Cardiac Magnetic Resonance Imaging in Pediatric Heart Transplant Recipients: Correlation with Cardiopulmonary Exercise Testing. The study characterized the relationship between multiparametric cardiac magnetic resonance imaging and markers of exercise capacity in pediatric heart transplant recipients. Data from patients who underwent cardiac magnetic resonance imaging within one year of cardiopulmonary exercise testing informed how graft assessment by imaging reflects functional capacity. This analysis contributed to understanding the utility of cardiac magnetic resonance imaging for surveillance of rejection and coronary artery vasculopathy. Article number four. Coronary Anomalies and Early Surgical Outcomes in Transposition of the Great Arteries and Taussig-Bing Anomaly: Insights from 251 Consecutive Arterial Switch Cases. This study evaluated the impact of coronary artery anomalies on early surgical outcomes in 251 consecutive arterial switch operations performed for transposition of the great arteries and Taussig-Bing anomaly. The analysis provided a comprehensive assessment of factors influencing mortality and postoperative recovery in these complex pediatric cardiac procedures. The findings clarified the prognostic significance of these anomalies in arterial switch operation patients. Article number five. Comparison of Heparin-Based Anticoagulation in Patients With and Without High Output Chylothorax: A Pilot Study. This pilot study compared heparin-based anticoagulation strategies in infants and children with and without high output chylothorax after cardiac surgery. The research addressed concerns that loss of antithrombin in chylothorax may impair the therapeutic effect of antithrombin-dependent anticoagulants like unfractionated heparin and low molecular weight heparin (enoxaparin). The findings provided initial data on the management of anticoagulation in these challenging pediatric patients. Thank you for listening. Don’t forget to subscribe. Keywords lymphoproliferative disorders, antithrombin, circulating factors, arterial switch operation, unfractionated heparin, de novo malignancy, maternal obesity, fetal cardiovascular risk, transposition of the great arteries, low molecular weight heparin, coronary artery vasculopathy, cardiopulmonary exercise testing, cardiomyocyte hypertrophy, cardiac magnetic resonance imaging, heart transplantation, Taussig-Bing anomaly, chylothorax, early surgical outcomes, coronary artery anomalies, cardiac surgery, malignancy, neonatal rat cardiomyocytes, pediatric heart transplant recipients, rejection surveillance, cancer risk. About Concise summaries of cardiovascular research for professionals. Subscribe • Share • FollowThe post Fetal Factors Link Maternal Obesity to Heart Risk 11/24/25 first appeared on Cardiology Today.