Left-heart leads
Attain Stability™ Quad MRI SureScan™ lead
Left-heart leads
Attain Stability™ Quad MRI SureScan™ lead
The Attain Stability™ Quad MRI SureScan™ active fixation LV lead is designed with active fixation and quadripolar lead technology.
Description
Precise placement and secure fixation
The Attain Stability™ Quad allows for more flexibility in pacing location and reduces the risk of lead dislodgement.1
Features
Active fixation and quadripolar technology
Advanced quadripolar lead technology:
- Reduces phrenic nerve stimulation with short bipolar spacing2–4
- Improves thresholds and longevity with steroid on all electrodes5
- Enables multiple point pacing (MPP)
- Approved for 1.5T and 3T full body MRI scanning
Unique side helix mechanism for active fixation:
- Enables precise and secure lead placement
- Eliminates the need to wedge and promotes non-apical pacing
- Integrates a mechanical stop and adhesive backfill for prevention of over-rotation and vein tissue pinching

Reduced risk for lead dislodgment
- 81% reduction in LV lead dislodgement during catheter slitting†,1,6
- 65% reduction in LV lead dislodgement at six months post-implant‡,1,6
- May reduce the need for repeat procedures due to LV lead dislodgements1
- May enable earlier patient discharge due to a reduced risk for lead dislodgement7
Dislodgement during slitting†,1,6
P = 0.0147

Dislodgement (6 months)‡,1,6
P = ns

Designed with extraction in mind
Helix straightens and elongates below expected extraction forces, enabling removal from the vein — similar to passive fixation leads.8

Attain Stability™ Quad side helix pre-extraction

Attain Stability™ Quad side helix post-extraction
Safety
- Vessel cross-sectional analysis indicates a 1 mm average distance between a vein and the nearest artery.9 This distance was taken into account when designing the side helix.
- The helix is positioned 0.25 mm away from the lead body, creating a 4x safety margin between the vein and artery.
- No LV lead perforations reported within six months of follow-up.1

† Based on a retrospective study comparing dislodgements to Attain™ Performa™ lead.
‡ Ad-hoc analysis conducted comparing post-implant dislodgement rates between Attain Performa™ (Model 4298) and Attain Stability™ Quad (Model 4798) leads (p = 0.098, two-sided Fisher’s exact test). Data were collected in a similar fashion in both studies.
- Jackson KP, Faerestrand S, Philippon F, et al. Performance of a novel active fixation quadripolar left ventricular lead for cardiac resynchronization therapy: Attain Stability Quad Clinical Study results. J Cardiovasc Electrophysiol. 2020;31(5):1147–1154.
- Biffi M. Utilizing short spacing between quadripolar LV lead electrodes to avoid PNS. Presented at CardioStim 2014 (Poster Presentation Session 56P).
- Biffi M, Foerster L, Eastman W, et al. Effect of bipolar electrode spacing on phrenic nerve stimulation and left ventricular pacing thresholds: an acute canine study. Circ Arrhythm Electrophysiol. 2012;5(4):815–820.
- Biffi M, Zanon F, Bertaglia E, et al. Short-spaced dipole for managing phrenic nerve stimulation in patients with CRT: the "phrenic nerve mapping and stimulation EP" catheter study. Heart Rhythm. 2013;10(1):39–45.
- Lunati MG. Long-term effect of steroid elution on the electrical performance of coronary sinus leads for cardiac resynchronization therapy. Presented at HRS 2012 (AB10-05).
- Crossley GH, Biffi M, Johnson B, et al. Performance of a novel left ventricular lead with short bipolar spacing for cardiac resynchronization therapy: primary results of the Attain™ Performa™ quadripolar left ventricular lead study. Heart Rhythm. 2015;12(4):751–758.
- Benjamin L. Attain Stability™ Quad post market product performance data — AdHoc analysis for marketing materials, version B. Medtronic data on file. February 2021.
- Adler S, Kirchhof N, Thompson AE, Foerster L, Marquard KR, Hine DS. Two-year extractability of novel left ventricular, active fixation leads in the sheep model. Pacing Clin Electrophysiol. 2017;40(11):1291–1297.
- Anderson SE, Hill AJ, Iaizzo PA. Microanatomy of human left ventricular coronary veins. Anat Rec (Hoboken). 2009;292(1):23–28.