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Impaired maternal glucose metabolism during pregnancy can have significant effects on the cardiovascular system of the developing fetus. Early in pregnancy the teratogenic effects may lead to structural heart defects, while later in gestation a form of hypertrophic cardiomyopathy can develop due to overgrowth driven by fetal hyperinsulinism. We describe an infant with the uncommon combination of both dextro-transposition of the great arteries and hypertrophic cardiomyopathy. We emphasize the importance of a longitudinal multi-disciplinary approach, from fetal diagnosis to post-operative management, that allowed for an excellent outcome in this rare combination of severe cardiac malformations.
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http://dx.doi.org/10.1007/s00246-022-02874-4 | DOI Listing |
Cureus
August 2025
Medicine/Cardiology, Madigan Army Medical Center, Tacoma, USA.
Apical hypertrophic cardiomyopathy (ApHCM) is an uncommon, nonobstructive form of hypertrophic cardiomyopathy (HCM) that is associated with an increased risk of ventricular aneurysms, atrial fibrillation, heart failure, and cardiac death. In this case report, a 63-year-old male patient was found to have deeply negative T waves on electrocardiogram (EKG) during a routine preoperative evaluation in an outpatient internal medicine clinic. Imaging with echocardiography and cardiac magnetic resonance confirmed the diagnosis of ApHCM.
View Article and Find Full Text PDFFront Cardiovasc Med
August 2025
Department of Cardiology, Dongguan Tai-xin Hospital, Dongguan, China.
Objective: This study sought to identify key prognostic factors in patients with hypertrophic cardiomyopathy (HCM) and heart failure with preserved ejection fraction (HFpEF), emphasizing the prognostic role of free triiodothyronine (FT3) levels.
Research Design And Methods: This retrospective cohort study enrolled 992 HCM-HFpEF patients from two Chinese medical centers between 2009 and 2019, excluding those with thyroid-affecting medications or disorders. Data on demographic and clinical variables, including FT3, were analyzed using univariate and multivariate Cox regression, Kaplan-Meier (KM) survival analysis, and restricted cubic spline (RCS) analysis to explore prognostic factors and FT3's nonlinear predictive value.
Biomed Eng Lett
September 2025
Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, Shenyang, China.
Abstract: Hypertrophic cardiomyopathy (HCM) is a common hereditary heart disease and is the leading cause of sudden cardiac death in adolescents. Septal hypertrophy (SH) and apical hypertrophy (AH) are two common types. The former is characterized by abnormal septal myocardial thickening and the latter by left ventricular apical hypertrophy, both of which significantly increase the risk of heart failure, arrhythmias, and other serious complications.
View Article and Find Full Text PDFJ Thorac Cardiovasc Surg
September 2025
Deparment of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea. Electronic address:
Objective: To evaluate the impact of CT planning on surgical myectomy outcomes in patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) and/or mid-cavity obstruction, by comparing these outcomes with those of conventional surgical myectomy.
Methods: This prospective cohort study included patients who underwent surgical septal myectomy for HCM with LVOT and/or mid-cavity obstruction between January 2019 and May 2024 at a single tertiary center. In the CT-planned myectomy group, an expert radiologist simulated the target myectomy site through a series of post-processing methods to plan the surgical approach, provide a surgeon's view that closely resembles the actual perspective in the operating room, and present the target myectomy volume.
J Electrocardiol
August 2025
Computational Physics Laboratory, Tampere University, P.O. Box 600, FI-33014 Tampere, Finland. Electronic address:
The QT interval is a key indicator in assessing arrhythmia risk, evaluating drug safety, and supporting clinical diagnosis in cardiology. The QT interval is significantly influenced by heart rate so it must be accurately corrected to ensure reliable clinical interpretation. Conventional correction formulas, such as Bazett's formula, are widely utilized but often criticized for inaccuracies, either under- or overcorrecting QT intervals in different physiological conditions.
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