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http://dx.doi.org/10.1161/CIRCEP.110.936385 | DOI Listing |
Front 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.
J Cardiovasc Dev Dis
August 2025
Department of Cardiology, S. Chiara Hospital, APSS PA of Trento, 38122 Trento, Italy.
Atrial fibrillation (AF), the most prevalent sustained cardiac arrhythmia, poses a significant burden on global morbidity and healthcare expenditure. Although endocardial catheter ablation and surgical ablation are established therapeutic strategies, each exhibits inherent limitations in achieving comprehensive substrate modification. Hybrid ablation therapy, integrating both endocardial and epicardial approaches, aims to overcome these limitations by enabling the more extensive and transmural targeting of arrhythmogenic foci and the complex atrial substrate.
View Article and Find Full Text PDFJ Cardiovasc Electrophysiol
August 2025
Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Introduction: Atrial tachycardias originating from right atrial appendages (RAA-AT) are often refractory to catheter ablation (CA). The extent of the localization of arrhythmogenic foci has been described.
Methods And Results: A 25-year-old male with RAA-AT experienced recurrence after CA and subsequently underwent right atrial appendectomy.
J Exp Zool A Ecol Integr Physiol
July 2025
Federal University of Piauí, Ministro Petrônio Portela University Campus (UFPI), Teresina, Brazil.
Introduction/objectives: Agoutis is a medium-sized wild rodent with potential for use as an experimental model. This study aimed to evaluate physiological parameters of arrhythmogenesis in this species, by HR-ECG and VCG techniques, under physical and pharmacological containment (ketamine-xylazine and butorphanol).
Materials And Methods: Eight agouti in which the physiological parameters of arrhythmogenesis were evaluated by HR-ECG and VCG techniques, under physical and pharmacological containment.
BMC Cardiovasc Disord
March 2025
Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China.
Background: Arrhythmogenic cardiomyopathy (ACM) is a genetic myocardial disease characterized by progressive myocyte loss and fibrofatty (fibrous and adipose) tissue replacement to predispose these patients to fatal ventricular arrhythmias and impairment of ventricular systolic function. The relationship of ACM and myocarditis has gained significant attention.
Case Presentation: This case presented a 28-year-old female who was admitted to the hospital with complaints of recurrent lower limb edema and palpitations for 6 months.