In this issue of the Journal, Giraldi et al. (1) compare transvenous and epicardial lead placement in patients with unfavorable coronary sinus anatomy. Patients who met standard criteria for cardiac resynchronization therapy (CRT) including left ventricular (LV) dysfunction, New York Heart Association class III to IV congestive heart failure, and left bundle branch block, who were on optimal me...

A 31-year old male presented with atrial fibrillation and ventricular preexcitation that was positive in leads V1-V4, negative in lead II, and positive in lead AVR. The patient was cardioverted and invasive electrophysiologic study was performed. Based on the ECG findings, the coronary sinus and its branches were interrogated during orthodromic atrioventricular reentrant tachycardia. The earlie...

BACKGROUND In the United States, patients aged >75 years are the most rapidly growing segment in the population, with an expected increase of 126% by 2050. These patients account for >70% of the pacemakers and up to two thirds of the implantable cardioverter-defibrillators implanted annually. Our aim was to explore the clinical outcomes of device complications in the octogenarian population. ...

In 2014, an 84-year-old man with pacemaker erosion was referred to our center. He underwent coronary artery bypass graft surgery in 2008 for multivessel coronary artery disease. In 2009, he developed sick sinus syndrome and received a Biotronik Cylos 990 DR-T DDD pacemaker with a 7.2-F Biotronik Selox SR 53 active fixation atrial lead and a 4.8-F Sorin Xfine TX26D passive ventricular lead. In J...

INTRODUCTION The aim of our investigation was to examine the intraluminal interaction of the vascular tissue and the implanted coronary sinus lead stabilized with stent on two human hearts removed before transplantation. METHODS AND RESULTS The coronary sinus lumen was sectioned under operational microscope and opened carefully. The leads and stents were found separately positioned beside eac...

transcatheter ablation of atrioventricular accessory pathway is the therapy of choice in symptomatic patients. the ablation of posteroseptal accessory pathways thas some important points due to its anatomical location. catheter ablation of posteroseptal accessory pathways via left side approach is time consuming with low success rate and higher complications. we performed successful transcathet...

Consistently low pacing thresholds of steroid-eluting leads are well documented for conventional lead positions [1-10], but not much comparative information is available on the extent and duration of the steroid effect in coronary sinus leads for left ventricular (LV) pacing. In this study, we compare the electrical performance of the coronary sinus leads Corox OTW steroid vs. Corox OTW (both B...