Selective-site pacing using the Select Secure system was successfully achieved in 100% of 30 paediatric patients, with stable pacing and sensing thresholds and no adverse events over 11 months.
Observational (n=30)
Is selective-site pacing using the Select Secure system feasible and reliable in pediatric patients requiring pacemakers?
The Select Secure system provides a feasible and reliable method for selective-site pacing in pediatric patients, maintaining stable electrical parameters without adverse events.
AIMS: The aim of this study was to evaluate the feasibility and reliability of selective-site pacing by means of a new lead system in a paediatric population. This lead system is composed of a 4.1 Fr, active-fixation lead and a steerable catheter that allows easy positioning in selective sites. METHODS AND RESULTS: Thirty young patients (mean age 9.0 +/- 4.5 years, range 2-16 years) received a single- (10) or dual- (20) chamber pacemaker. The 3830 lead was implanted successfully in the targeted chambers in all patients. The selective RV sites of pacing in 26 of the patients were: 18 mid-septum, 5 outflow tract, 1 low-septum, and 2 LEVO-RV-Apex. In all patients, an intracardiac loop was left in order to avoid stretching of the lead with growth. Mean follow-up duration was 11 +/- 10 months. Atrial sensing and pacing thresholds were 3.2 +/- 1.7 mV and 0.8 +/- 0.6 V at 0.5 ms at implantation and 3.4 +/- 2.1 mV and 0.6 +/- 0.3 V at 0.5 ms at follow-up. Ventricular sensing and pacing thresholds were 12.1 +/- 4.9 and 0.7 +/- 0.4 V at 0.5 ms on implantation and 12.7 +/- 6.1 mV and 0.8 +/- 0.5 V at 0.5 ms at follow-up (P = NS). No adverse events were reported. CONCLUSION: Select Secure is a promising system for selective-site pacing in children.
Cantù et al. (Thu,) conducted a observational in Paediatric patients requiring pacemaker implantation (n=30). Select Secure system (3830 lead) for selective-site pacing was evaluated on Feasibility and reliability (successful implantation and stable pacing/sensing thresholds). Selective-site pacing using the Select Secure system was successfully achieved in 100% of 30 paediatric patients, with stable pacing and sensing thresholds and no adverse events over 11 months.