Marked troponin elevation after implantation of a permanent antibradycardia pacemaker.

Introduction: Transvenous insertion of endocardial leads for permanent pacing is often accompanied by minor myocardial damage, detected thanks to the high sensitivity of cardiac troponins. It is unknown whether higher troponin levels, commensurate with more severe myocardial damage, can be encountered after implantation procedures.

Methods: Over a 3-year period, 283 patients underwent an implantation of a full antibradycardia pacemaker system (pulse generator plus leads).

Biochemical evidence of cardiac damage following transvenous implantation of a permanent antibradycardia pacemaker lead.

Objectives: We tested the hypothesis that transvenous permanent pacemaker lead implantation causes clinically detectable myocardial damage.

Background: Histological evidence of myocardial damage has been reported after antibradycardia pacemaker lead implantation.

Methods: We studied 30 patients undergoing implantation of a full antibradycardia pacemaker system (pulse generator plus leads) and 10 patients in whom only a generator was implanted.

Radiation doses to patients and cardiologists from permanent cardiac pacemaker implantation procedures.

Background: The purpose of this study was to determine the patient and cardiologist doses during the implantation of permanent cardiac pacemakers under fluoroscopic control.

Methods: For 55 procedures concerning three different types of pacemakers (DDD, VDD, and VVI), the dose-area product (DAP) meter readings and fluoroscopy times were recorded. From these data, the dose to the operating cardiologist was estimated.