94 research outputs found
Transcatheter Leadless Cardiac Pacing with Limited Venous Access
Entirely leadless cardiac pacemakers that are delivered transvenously required the use of large diameter delivery sheath and femoral venous approach. The complexity of external femoral and iliac venous anatomy may limit their implantation. We describe a patient without subclavian venous access and a conventional pacemaker with a failed right ventricular lead, who had difficult iliac venous anatomy that was also compressed by an external endovascular abdominal aortic stent. Successful leadless pacing using a Micraâ„¢ (Medtronic Inc) was accomplished with a strong support wire, hydrophilic delivery sheath and guided by venography. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.postprin
Non-fluoroscopic magnetic electroanatomic mapping of pulmonary veins during spontaneous or induced prematuer depolarization to guide radiofrequency ablation of focal atrial fibrillation
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First experience of non-fluoroscopic magnetic electroanatomic mapping guided alcohol ablation of the atrioventricular node
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Sudden cardiac death: Prevention and treatment
Sudden cardiac death remains a major health issue in western countries as well as in Hong Kong. Despite increasing knowledge of the mechanisms and risk factors of sudden cardiac death, methods for identifying high-risk candidates and predicting the efficacy of measures to prevent sudden cardiac death are still inadequate. A significant proportion of patients have known heart disease but are generally considered to be at low risk for this event. More efforts are needed to improve the success rate of out-of-hospital resuscitation through better warning systems, the use of amiodarone for refractory arrhythmias, and the widespread availability of automated defibrillation devices to allow early defibrillation. It is likely that these measures could increase the number of survivors following cardiac arrest. In survivors of sudden cardiac death episodes, treatment of the underlying cardiac disease, especially early revascularisation for myocardial ischaemia, is required. In the majority of patients, implantation of an implantable cardioverter defibrillator, with or without the use of an anti-arrhythmic drug such as amiodarone, would then be used to maintain survival. Furthermore, for individuals at significant risk of sudden cardiac death, primary prevention of sudden cardiac death through the placement of an implantable cardioverter defibrillator is increasingly being used.published_or_final_versio
Is radiofrequency catheter ablation of symptomatic ventricular ectopics justified?
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High incidence of atrial fibrillation after dual chamber pacemaker implantation - implication on the use of atrial defibrillation mode pacemakers
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QRS changes and QT intervals on 12-lead ECGs in patients receiving biventricular pacing for congestive heart failure
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Demonstration of resynchronisation of the left ventricle after biventricular pacing in patients with advanced heart failure by tissue doppler echocardiography
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2016 Consensus statement on prevention of atherosclerotic cardiovascular disease in the Hong Kong population
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