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Device-device interference triggered by an abandoned pacemaker: a case report.
Eur Heart J Case Rep
November 2024
Hannover Heart Rhythm Center, Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg-Straße 1, Hannover 30625, Germany.
Article Synopsis
- Cardiac implantable electronic devices (CIEDs) can experience electromagnetic interference from various sources, including household and medical equipment, which can lead to malfunctions.
- A 79-year-old man experienced presyncope due to his abandoned abdominal pacemaker reactivating and interfering with his active leadless pacemaker, resulting in pacing problems and symptoms.
- The situation was managed by adjusting the active pacemaker's settings, but ultimately the best solution was to remove the abandoned pacemaker to prevent further complications.
Pacemaker lead extraction saved a severe lead-induced tricuspid regurgitation: a case report.
Eur Heart J Case Rep
November 2024
Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, No. 92, Aiguo Road, Nanchang City, Jiangxi Province 330006, China.
Background: Pacemaker lead-induced tricuspid regurgitation is a common complication after cardiac implantable electronic device (CIED) implantation. Cardiac implantable electronic device lead removal is a challenge procedure.
Case Summary: A 72-year-old lady was admitted due to worsening heart failure.
Biotronik Implantable Cardioverter Defibrillator for Measurement of Intrathoracic Impedance: A Report of Two Cases.
Ann Noninvasive Electrocardiol
November 2024
Department of Cardiovascular Medicine, Heart Center, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China.
Article Synopsis
- Two patients received an implantable cardioverter-defibrillator (ICD), and Holter analysis revealed regular pacing spikes occurring after heartbeats, indicating system activity.
- The study utilized dynamic electrocardiogram analysis and literature review to identify these spikes as a feature measuring thoracic impedance rather than a malfunction.
- The findings suggest that these spikes are a normal function of the ICD designed to monitor heart failure, not an interference signal.
Phenotype of severe tricuspid regurgitation induced by intracardiac pacing devices.
Med Clin (Barc)
January 2025
Instituto Cardiovascular, Hospital Clínico San Carlos, Madrid, España.
Introduction And Aims: Tricuspid regurgitation (TR) induced by the implantation of cardiac implantable electronic devices (CIED) is an increasingly common cause of severe TR. Our aim was to describe the echocardiographic phenotypic characteristics of CIED-induced severe TR.
Methods: Retrospective cohort study that included patients with severe TR related to CIED diagnosed in the cardiac imaging unit of a Spanish tertiary hospital.
Dopaminergic neuron metabolism: relevance for understanding Parkinson's disease.
Metabolomics
October 2024
Instituto de Fisiología Celular - Neurociencias, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Article Synopsis
- * This review focuses on the intrinsic differences between SNc and VTA neurons, including aspects like gene expression, calcium dynamics, energy metabolism, and responses to reactive oxygen species (ROS), particularly during aging.
- * Key findings indicate that SNc neurons have higher energy demands and ROS production due to their complex structure, making them more prone to degeneration, especially when affected by PD-related mutations impacting metabolic pathways.
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