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Feasibility of anchoring active fixation quadripolar lead to the main body of the dilated coronary sinus in a patient with persistent left superior vena cava: a case report.
Eur Heart J Case Rep
January 2025
Department of Cardiology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-Ku, Yokohama city, Kanagawa 236-0004, Japan.
Background: Coronary sinus (CS) lead placement in persistent left superior vena cava (PLSVC) cases is challenging because of the poor backup force of the guiding catheter within the enlarged CS. Active fixation Quadripolar leads (Attain Stability™ Quad 4798, Medtronic) can expand choice to CS branches with limited access; however, no cases of anchoring to the main body of the CS have been published to date.
Case Summary: We describe a case of cardiac resynchronization therapy pacemaker upgrade in a 79-year-old female who developed pacing-induced cardiomyopathy after pacemaker implantation via the right superior vena cava (SVC) for atrioventricular block eight years ago wherein PLSVC was revealed during the procedure.
Post-Implant Global Longitudinal Strain as a Predictor of Pacing-Induced Cardiomyopathy in Patients with Preserved Ejection Fraction Undergoing Pacemaker Placement.
Rev Cardiovasc Med
January 2025
Department of Cardiovascular Medicine, Wonkwang University Medical School, 54536 Iksan, Republic of Korea.
Background: Right ventricular (RV) pacing exacerbates heart failure and increases cardiac mortality in patients with reduced ejection fraction (EF). However, its impact on left ventricular dysfunction in patients with preserved EF remains inconclusive. This study investigates the relationship between RV pacing, global longitudinal strain (GLS), and EF in patients with preserved EF.
View Article and Find Full Text PDFSyncope secondary to arrhythmogenic left ventricular cardiomyopathy: a case report.
AME Case Rep
November 2024
Guangxi Academy of Medical Sciences, Nanning, China.
Background: Arrhythmogenic cardiomyopathy (ACM) is an inherited cardiac disease characterized by fibrofatty replacement of ventricular myocardium. Ventricular arrhythmia and sudden cardiac death (SCD) are the main clinical manifestations. ACM was previously called arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D).
View Article and Find Full Text PDFLeadless Pacing: Current Status and Ongoing Developments.
Micromachines (Basel)
January 2025
Section of Electrophysiology, Division of Cardiology, Department of Internal Medicine, Rush University Medical Center, 1653 W. Congress, Chicago, IL 60612, USA.
Although significant strides have been made in cardiac pacing, the field is still evolving. While transvenous permanent pacing is highly effective in the management of bradyarrhythmias, it is not risk free and may result in significant morbidity and, rarely, mortality. Transvenous leads are often the weakest link in a pacing system.
View Article and Find Full Text PDFThe effect of power-based control on the haemodynamics and valve function of the biventricular assist circulation system.
Int J Artif Organs
January 2025
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, China.
Biventricular assist devices (BiVAD) are capable of providing mechanical support to the left and right ventricles to improve blood supply in heart failure, thereby maintaining patients' lives and improving their quality of life. But there is evidence that the incidence of aortic valve incompetence and other valvular pathologies is related to BiVAD support. Such as constant speed (CS) control may cause the valve to close completely and lose its normal valve function.
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