Pacing and clinical electrophysiology : PACE
-
Pacing Clin Electrophysiol · Mar 2011
Case ReportsIntercommissural lead placement into a right ventricular coronary sinus--utility of intracardiac echo guidance.
Patients with congenital heart disease and prosthetic valves frequently present management dilemmas related to cardiac pacing and lead placement. Permanent pacing of the right ventricle across a bioprosthetic tricuspid valve presents discreet issues related to its potential for traumatic injury and subsequent prosthetic valve dysfunction. ⋯ We report an unusual case in which the CS ostium was located ventricular to the tricuspid prosthesis. Intracardiac echocardiography was used to position a CS lead between the commissures of the tricuspid prosthesis resulting in trivial regurgitation acutely and at 1-year follow-up.
-
Pacing Clin Electrophysiol · Feb 2011
Clinical TrialImprovement in right ventricular systolic function after cardiac resynchronization therapy correlates with left ventricular reverse remodeling.
Cardiac resynchronization therapy (CRT) improves left ventricular (LV) systolic function in heart failure (HF). However, the effects of CRT on right ventricular (RV) systolic function are not fully understood. ⋯ RV diameters and systolic indices after CRT improved only in the responder group. Improvement in RV systolic performance after CRT is correlated with the reduction of LVESV.
-
Pacing Clin Electrophysiol · Jan 2011
Case ReportsLaser extraction of a trapped infected port catheter in a child using existing experience from pacemaker and ICD lead removal.
A 9-year-old girl presented with systemic infection related to a Port-a-Cath system (PAC); therefore, the urgent removal of the PAC was indicated. However, the catheter was trapped and not extractable by conventional means. Using existing comprehensive experience in the removal of pacemaker and implantable cardioverter defibrillator leads, the entrapped PAC was successfully extracted by laser technique, thus avoiding open heart surgery.
-
Pacing Clin Electrophysiol · Nov 2010
Linear lesion cryoablation for the treatment of atrioventricular nodal re-entry tachycardia in pediatrics and young adults.
Radiofrequency (RF) ablation is a relatively safe and effective method for treatment of atrioventricular nodal re-entry tachycardia (AVNRT), but carries a 1-2% risk of AV nodal injury. Cryothermal ablation reduces the risk of AV block, but has had decreased procedural success and increased recurrence of tachycardia. We sought to evaluate the technique of linear lesion cryoablation (LLC) for treatment of AVNRT. ⋯ LLC is an effective means of treatment for AVNRT and is associated with significantly improved procedural success and freedom from recurrence compared to single lesion methods, while at the same time obtaining equivalent efficacy to RF.