Retrospective Analysis Of Application Of Left Ventricular Active Fixation Lead In26Cases

Objective:We evaluated the usage of an LV active fixation lead (Medtronic Attain Starfix4195) in Cardiac resynchronization therapy (CRT) implantations.Methods:Between July2010and August2012, in26patients (16male,10female,68.8±7.7years,16DCM,5ICM,5others), the Starfix4195lead was used. We observed success rate of implanting the LV lead at the optimal pacing site, and after median follow-up of10.5months, we observed the complications, e.g.lead dislocation, phrenic nerve stimulation and increasing pacing threshold.Results:Starfix4195lead implantation was overall successful with100%, in24cases the LV lead was implanted at the optimal pacing site. After a follow-up of over6months in24cases,21cases (87.5%) were responsive to CRT while another3cases (12.5%) were unresponsive. After a median follow-up of10.5months, the threshold of LV lead remained stable compared to that in surgery (1.0±0.5vs1.2±0.7V,P>0.05), and no dislocation of LV lead or phrenic nerve stimulation was observed.Conclusions:The Starfix4195lead proved to be an important option in CRT implantations, which can fix to the optimal pacing site steadily, thus significantly increasing surgery success rate as well as decreasing complications.