Atrial fibrillation (AF) is common in patients who have implantable defibrillators and presents some unique challenges and opportunities. AF burden can be assessed more accurately, allowing for evaluation of therapy efficacy (drugs or ablation). It remains to be shown whether home monitoring of defibrillators to detect and treat AF more quickly can reduce cardiovascular and stroke end points. O...

udden cardiac death is a common problem, and increasing numbers of patients are surviving a first episode of a life threatening ventricular arrhythmia. In the absence of an acute myocardial infarction, patients who survive either ventricular fibrilla-tion or sustained ventricular tachycardia have a high risk of further episodes, which may be fatal. 1 Until recently, class I and class III antiar...

In recently years, Artificial Neural Networks have been studied extensively and applied in medical field, and have been demonstrated to have much better pattern recognition ability. In this chapter we present a VLSI chip to be implemented using 0.35 μm CMOS technology which is the implantable cardioverter defibrillator (ICDs). Implantable cardioverter defibrillator is a device which monitors th...

Introduction Subcutaneous implantable cardioverter-defibrillators (S-ICD) provide an alternative to traditional transvenous implantable cardioverter-defibrillators (TV-ICD) and avoid complications associated with intravascular access and leads. They are highly effective in detecting and treating ventricular arrhythmias, with comparable inappropriate shock rates. Use of S-ICD is anticipated to i...

Association of Long vs StandardDetection Intervals for Implantable Cardioverter-Defibrillators WithHospitalizations and Costs The roleof implantable cardioverter-defibrillators (ICDs) in reducing sudden and overall mortality is established.1 Recently, an ICD programming strategy that allows delayed detection of arrhythmiaswas shown to reduceunnecessary and inappropriate therapies.2,3 In this ex...