The presence of supraventricular tachycardia is the leading cause of inappropriate shock in ICD recipients, and it can be a significant cause of morbidity, psychological distress and worsened clinical outcome. Modern pacing and ICD systems offer a number of discriminators that are integrated into algorithms to differentiate sustained ventricular tachycardia from supraventricular tachycardia. These algorithms can be adapted and optimised for each individual patient to ensure that only those arrhythmias that need treatment through the use of an ICD, are actually treated. This review summarises the single- and dual-chamber discriminators that can be used in the detection and classification of tachyarrhythmias.
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http://dx.doi.org/10.15420/aer.2021.54 | DOI Listing |
Heart Lung
January 2025
Sakarya University, Faculty of Medicine, Department of Emergency, Sakarya, Türkiye. Electronic address:
Background: While clinical indicators for synchronized cardioversion in regular supraventricular tachycardias are well-established, their application by prehospital emergency medical services (EMS) still needs to be explored.
Objective: The purpose of this study was to evaluate the factors influencing the decision-making process of prehospital EMS personnel to perform synchronized cardioversion in adults with narrow QRS regular tachyarrhythmias.
Methods: This descriptive study included 598 paramedics actively engaged in prehospital EMS.
Pacing Clin Electrophysiol
January 2025
Electrophysiology and Cardiac Pacing Unit, San Giuliano Hospital, Giugliano in Campania, Italy.
We present the case of a 64-year-old man who, during the implantation of an active-fixation leadless pacemaker (LP, Aveir VR, Abbott, USA), underwent several external defibrillation shocks up to 240 Joules, due to symptomatic sustained supraventricular tachycardia at 160 bpm. The shocks, delivered both before and after the screwing of the device in the low interventricular septum, did not cause any technical damage to the device, and no complications were observed. The device was then deployed successfully.
View Article and Find Full Text PDFCardiol Young
January 2025
Department of Cardiovascular Surgery, Hacettepe University, Ankara, Turkey.
Background: Ebstein's anomaly represents 40% of congenital tricuspid valve abnormalities. Studies about paediatric Ebstein's anomaly patients are limited.
Aim: To evaluate clinical characteristics, treatment (medical/arrhythmia ablation/surgical) results, and outcome of Ebstein's anomaly patients, and to determine factors affecting arrhythmia presence and mortality.
Prenat Diagn
January 2025
Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China.
Objective: To describe the outcome of a case of severe drug-resistant fetal tachyarrhythmia with progressive hydrops treated with fetoscopic transesophageal pacing (FTEP).
Method: A case of fetal tachyarrhythmia complicated by progressive hydrops is presented. The fetus, diagnosed at 26 weeks of gestation, had supraventricular tachycardia with a mechanism suggestive of atrial reentry.
J Cardiothorac Surg
January 2025
Wuhan Maternal and Child Healthcare Hospital, Tongji Medical College, The Children's Heart Center, Wuhan Children's Hospital, Huazhong University of Science & Technology, 100 Hongkong Road, Jiangan District, Wuhan, Hubei, China.
Background: Tachycardia-induced cardiomyopathy refers to changes in cardiac structure and function that result from rapid arrhythmia and can manifest as a continuous or recurrent event. Cardiomyopathy induced by atrial tachycardia is typically reversible if the arrhythmia is effectively controlled. There are few literature reports of atrial tachycardia-induced cardiomyopathy in children, and fewer cases have been effectively treated by radiofrequency catheter ablation in children.
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