BACKGROUND In vitro testing is used to determine safe parameters before performing magnetic resonance imaging (MRI) on a patient with an implant. Therefore, the objective of this study was to evaluate a cardiac pacemaker using a 1.5-T magnetic resonance (MR) system. METHODS A modern cardiac pacemaker (INSIGNIA I PLUS, Model 1298, and FINELINE II, Model 4471, pacing leads; Guidant Corporation,...

A 55-year-old female patient with earlier diagnosis of cardiac cirrhosis and mitral valve implantation was admitted with complaints of weakness and dizziness. She had undergone VVIR pacemaker implantation 9 years earlier due to low ventricular rate atrial fibrillation and had generator replacement procedure 3 months previously. Electrocardiogram indicated pacemaker dysfunction due to failure to...

OBJECTIVE To study the potential interactions in patients with endocardial permanent pacemakers and non-thoracotomy implantable cardioverter defibrillator (ICD) systems. DESIGN Case series and cohort study. SETTING Tertiary referral centre. PATIENTS Fifteen consecutive patients with both endocardial pacemakers (12 dual chamber and three single chamber) and non-thoracotomy ICD systems. M...

Bio-Implantable Microsystems such as the cardiac pacemaker, retinal and neural implant provides substitute for a missing biological part, support an impaired biological structure or even upgrade the existing biological system. These microsystems require ultra-low power miniature integrated circuit technology for long term reliable operation. For energy constraint applications like the implantab...

Implantable cardiac pacemakers restore normal heart rhythm by delivering external electrical pacing to the heart. The pacemaker software is life-critical as the timing of the pulses determine its ability to control the heart rate. Recalls due to software issues have been on the rise with the increasing complexity of pacing algorithms. Open-loop testing remains the primary approach to evaluate t...

When a drug is prescribed for a patient with a permanent pacemaker or an implantable cardioverter defibrillator (ICD), consideration must be given to the potential interactions. Drug effect on pacemaker performance is usually thought to cause an increase or decrease in pacing threshold. From a practical view, Class IC drugs must be used cautiously in pacemaker patients, especially in those who ...

The management of arrhythmias detected by implantable cardiac devices can be challenging. There are no formal international guidelines to inform decision-making. The purpose of this European Heart Rhythm Association (EHRA) survey was to assess the management of various clinical scenarios among members of the EHRA electrophysiology research network. There were 49 responses to the questionnaire. ...