Europace Advance Access originally published online on March 5, 2009
Europace 2009 11(5):601-606; doi:10.1093/europace/eup058
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Pacing and CRT
Selective-site pacing in paediatric patients: a new application of the Select Secure system
1 Electrophysiology, Cardiovascular Department, Ospedali Riuniti di Bergamo, Largo Barozzi 1, 24128 Bergamo, Italy; 2 Regina Margherita Childrens Hospital, Turin, Italy; 3 Medtronic Italia Spa, Milan, Italy
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.
Key Words: Selective, Pacing, Paediatric, New, Lead
* Corresponding author. Tel: +39 035 266594, Fax: +39 035 266826, Email: fcantu{at}ospedaliriuniti.bergamo.it
Manuscript submitted 19 December 2008. Accepted after revision 10 February 2009.
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