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http://dx.doi.org/10.1016/0002-8703(66)90661-2 | DOI Listing |
Pediatr Radiol
January 2025
Department of Cardiology, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA.
The number of children with cardiac implantable electronic devices (CIEDs) is increasing at a time of rapid growth in cardiac magnetic resonance (MR) and cardiac computed tomography (CT) utilization. The presence of CIEDs poses challenges with respect to imaging safety and quality. A thoughtful approach to cardiovascular imaging in patients with CIEDs begins with an awareness of the clinical indications to determine the most appropriate imaging modality.
View Article and Find Full Text PDFCirc Heart Fail
January 2025
Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Germany. (R.P., J.S.H., D.B., A.S.M., M.H., A.Z., G.D., J.D.S., A.F.P., A.W., A.R., B.S.).
Background: Consensus regarding on-support evaluation and weaning concepts from Impella 5.5 support is scarce. The derived left ventricular end-diastolic pressure (dLVEDP), estimated by device algorithms, is a rarely reported tool for monitoring the weaning process.
View Article and Find Full Text PDFFront Cardiovasc Med
January 2025
Department of Cardiology, The First People's Hospital of Neijiang, Neijiang, China.
More than 1 million permanent pacemakers are implanted worldwide each year, half of which are in patients with high-grade atrioventricular block. Pacemakers provide adequate frequency support in the initial stage, but traditional right ventricular (RV) pacing may lead to or aggravate left ventricular dysfunction and arrhythmia. Several potential risk factors for heart failure and arrhythmias after pacemaker surgery have been identified, but their occurrence remains difficult to predict clinically.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Life Sciences, The University of Tokyo, Tokyo, Japan.
Many theories of time perception propose the existence of an internal pacemaker, and studies across behavioral, physiological, and neuroscience fields have explored this concept. Specifically, Spontaneous Motor Tempo (SMT), the most comfortable and natural tapping tempo for each individual, is thought to reflect this internal pacemaker's tempo. Changes in heart rate are also linked to time estimation, while Individual Alpha Frequency (IAF), the peak in the alpha range (8-13 Hz) observed in EEG, is reported to reflect the brain's temporal processing.
View Article and Find Full Text PDFJ Thorac Cardiovasc Surg
January 2025
Department of Surgery, Division of Vascular Surgery, University of Maryland School of Medicine.
Objective: We present our experience with endovascular Bentall procedure (Endo-Bentall) using a modular valve conduit (Endo-Bentall) in high-risk patients with aortic root pathologies.
Methods: The physician constructed Endo-Bentall device is composed of a self-expanding transcatheter aortic valve (TAVR), aortic endovascular stent graft (TEVAR), and two wire-reinforced fenestrations for coronary artery stenting. The TAVR valve is sutured into an appropriately sized TEVAR graft.
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