Stylet-driven active-fixation lead placement guided only by posterior-anterior fluoroscopy successfully achieved right ventricular septal positioning in 90% of patients.
Observational (n=100)
Does a stylet-driven technique guided only by PA fluoroscopic view effectively achieve right ventricular septal lead placement in patients requiring pacing?
Conventional active-fixation pacing leads can be successfully and safely deployed onto the RV septum using a purposely-shaped stylet guided only by PA fluoroscopy, achieving a 90% success rate.
BACKGROUND: The detrimental effects of right ventricular (RV) apical pacing on left ventricular function has driven interest in alternative pacing sites and in particular the mid RV septum and RV outflow tract (RVOT). RV septal lead positioning can be successfully achieved with a specifically shaped stylet and confirmed by the left anterior oblique (LAO) fluoroscopic projection. Such a projection is neither always used nor available during pacemaker implantation. The aim of this study was to evaluate how effective is the stylet-driven technique in septal lead placement guided only by posterior-anterior (PA) fluoroscopic view. METHODS: One hundred consecutive patients with an indication for single- or dual-chamber pacing were enrolled. RV septal lead positioning was attempted in the PA projection only and confirmed by the LAO projection at the end of the procedure. RESULTS: The RV lead position was septal in 90% of the patients. This included mid RV in 56 and RVOT in 34 patients. There were no significant differences in the mean stimulation threshold, R-wave sensing, and lead impedance between the two sites.In the RVOT, 97% (34/35) of leads were placed on the septum, whereas in the mid RV the value was 89% (56/63). CONCLUSIONS: The study confirms that conventional active-fixation pacing leads can be successfully and safely deployed onto the RV septum using a purposely-shaped stylet guided only by the PA fluoroscopic projection.
Rosso et al. (Mon,) conducted a observational in Indication for single- or dual-chamber pacing (n=100). Stylet-driven active-fixation lead placement guided by posterior-anterior (PA) fluoroscopy was evaluated on Successful right ventricular septal lead positioning. Stylet-driven active-fixation lead placement guided only by posterior-anterior fluoroscopy successfully achieved right ventricular septal positioning in 90% of patients.
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