Abstract
Background: The arctic front cryoballoon (AF-CB) provides effective and durable pulmonary vein isolation (PVI) associated with encouraging clinical outcome. The POLARx cryoballoon incorporates unique features and design changes that may translate into improved efficacy, safety and further simplified balloon-based procedures. Efficacy and safety of the novel POLARx cryoballoon was compared to the fourth generation AF-CB (AF-CB4). Methods and Results: Twenty-five consecutive patients with paroxysmal or persistent atrial fibrillation were prospectively enrolled, underwent POLARx-based PVI (POLARx group) and were compared to 25 consecutive patients treated with the AF-CB4 (AF-CB4 group). All PVs were successfully isolated utilizing the POLARx and AF-CB4. A significant difference regarding the mean minimal cryoballoon temperatures reached using the AF-CB4 and POLARx (-50±6°C vs. -57±7°C, P=0.004) was observed. Real-time PVI was visualized in 81% of POLARx patients and 42% of AF-CB4 patients (P<0.001). Utilizing the POLARx, a trend towards shorter median procedure time (POLARx: 45 [39, 53] min vs. AF-CB4: 55 [50, 60] min; P=0.062) was found. No differences were observed between AF-CB4 and POLARx concerning catheter maneuverability, catheter stability and periprocedural complications. Conclusions: The novel POLARx showed similar safety and efficacy compared to the AF-CB4. A higher rate of real-time PV recordings and significantly lower minimal balloon temperatures were observed using the POLARx.
| Original language | English |
|---|---|
| Journal | Circulation Journal |
| Volume | 85 |
| Issue number | 8 |
| Pages (from-to) | 1296-1304 |
| Number of pages | 9 |
| ISSN | 1346-9843 |
| DOIs | |
| Publication status | Published - 2021 |
Funding
C.-H.H. received travel grants and research grants from Boston Scientific, Biosense Webster and Cardiofocus and Speaker´s Honoraria from Boston Scientific, Biosense Webster and Cardiofocus. R.R.T. is a consultant for Boston Scientific, Biotronik and Biosense Webster and received Speaker’s Honoraria from Biosense Webster, Medtronic, Boston Scientific and Abbot Medical. K.-H.K. reports grants and personal fees from Abbott Vascular, Medtronic, Biosense Webster outside submitted work. All other authors have no relevant disclosures to declare.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Research Areas and Centers
- Centers: Cardiological Center Luebeck (UHZL)
DFG Research Classification Scheme
- 2.22-12 Cardiology, Angiology
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