Randomized comparison of the magnetic navigation system vs. standard wires in the treatment of bifurcations

Aims Randomly compare the magnetic navigation system (MNS) to standard guidewire techniques in managing bifurcating lesions. Methods and results Thirty-one consecutive patients with bifurcating lesions were randomized to cross the bifurcating vessels prior to treatment and thereafter the struts of d...

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Bibliographic Details
Published in:European heart journal 2011-06, Vol.32 (12), p.1479-1483
Main Authors: Ramcharitar, Steve, van der Giessen, Willem J., van der Ent, Martin, Serruys, Patrick W., van Geuns, Robert Jan
Format: Article
Language:English
Subjects:
Angioplasty, Balloon, Coronary - instrumentation
Angioplasty, Balloon, Coronary - methods
Biological and medical sciences
Cardiology. Vascular system
Contrast Media
Coronary Artery Disease - therapy
Coronary heart disease
Drug-Eluting Stents
Feasibility Studies
Fluoroscopy
Heart
Humans
Length of Stay
Magnetics - methods
Medical sciences
Treatment Outcome
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Summary:Aims Randomly compare the magnetic navigation system (MNS) to standard guidewire techniques in managing bifurcating lesions. Methods and results Thirty-one consecutive patients with bifurcating lesions were randomized to cross the bifurcating vessels prior to treatment and thereafter the struts of deployed stents with either magnetic or standard guidewires. Crossing success, crossing/fluoroscopy times, and contrast media usage were directly compared. Similar times were noted in both the magnetic wire crossings (median, IQR; 68 s, 45-138 s vs. 59 s, 32-133 s) and fluoroscopic times (median, IQR; 62 s, 44-135 s vs. 55 s, 27-133 s) when compared with standard conventional wires passage through the deployed struts. The MNS successful crossings were 30/31 (96.8%) compared with 28/31 (90.0%) observed with the standard wires. Two previously failed standard wire cases were successfully crossed with magnetic guidewires. Conclusion In contemporary stented bifurcations, the MNS achieved equivalent crossing/fluoroscopy times through deployed stents struts and may be useful in salvaging failed standard wire cases.
ISSN:0195-668X
1522-9645
DOI:10.1093/eurheartj/ehq123