We describe the case of a patient with hypertrophic cardiomyopathy who had recurrent syncopal episodes, the cause of which remained unexplained despite a thorough evaluation. Two years after his first evaluation, an implantable loop recorder revealed asymptomatic episodes of advanced second degree atrioventricular block while the patient was awake. Although a permanent pacemaker was implanted, ...

The entirely subcutaneous implantable cardioverter defibrillator (S-ICD(®)) is emerging as a widely accepted therapeutic alternative to a conventional implantable cardioverter defibrillator (ICD) for prevention of sudden cardiac death. Essentially, the S-ICD(®) is promising in terms of reduction of electrode-related complications such as lead failure and infections. The conventional transvenous...

The rate of implantable cardioverter defibrillator (ICD) implantation has gone up as primary and secondary prevention trials have relatively consistently shown significant improvement in mortality and morbidity. Most patients with ICDs are followed routinely at intervals ranging from 3 to 6 months. Many patients require additional non-scheduled visits to investigate symptoms that may or may not...

Unfortunately, the authors have missed our 2 publications on this topic which have been tested in a larger population of CD patients with an implantable cardioverter-defibrillator (ICD) (FECHA study) [2,3]. We included 98 patients from 14 centers in Latin America, all of them with CD cardiomyopathy and an implantable cardioverter-defibrillator (ICD). The mean follow-up was 33±20 months. Mean LV...

Our patient was an 85-year-old man who had experienced an out-of-hospital cardiac arrest in September 1990 and subsequently underwent the implantation of an automatic implantable cardioverter-defibrillator as part of the Cardiac Arrest in Seattle: Conventional versus Amiodarone Drug Evaluation (CASCADE) trial, as well as bypass surgery in Seattle, Wash. The defibrillator was placed abdominally....

The design of analogue low power VLSI building block is very important for implantable devices, like cochlear implants and implantable cardioverter deebril-lators(ICD). In this paper we describe the micropower analogue building blocks for implementing the template matcher used for intracardiac electrogram (ICEG) clas-siication and data compression in an ICD. These blocks were fabricated using O...

Currently, nuclear magnetic resonance imaging is contraindicated in patients with a pacemaker or implantable cardioverter-defibrillator. This study was carried out because the potential risks in this situation need to be clearly defined. This prospective study evaluated clinical and electrical parameters before and after magnetic resonance imaging was performed in 33 patients (five with implant...

Twiddler’s syndrome is a rare condition caused by coiling of the leads, leading to malfunction in pacemaker or automated implantable cardioverter-defibrillator (AICD). It was first described Bayliss 1968 as rare, but potentially fatal complication treatment1. Inappropriate shocks due malfunctioning AICD can be devastating, traumatic, patient.

Sudden cardiac death continues to be a major health problem in the United States, accounting for approximately 400,000 deaths per year. The last 10 yrs have seen major advances in the primary and secondary prevention of this problem. In patients who have survived an episode of cardiac arrest, the AVID study conclusively established the superiority of the implantable cardioverter defibrillator o...