Limitations
The present study has several limitations that should be acknowledged. First, we tested only the Biotronik Solia S60 pacing lead in combination with the regular stylet delivered in the same packaging. Our results can therefore not be transposed to other stylet-driven leads or stylet and lead combination. Secondly, for ethical reasons, even in the validation-group, LS pacing was used in between the pace-mapping steps to inform the implanter of the progression of the lead. Therefore, we cannot consider that the LS pacing strategy was strictly compared to the traditional interrupted pace-mapping approach. Finally, our study is underpowered to demonstrate the superiority of one of the two techniques in terms of complications.